Cadillac News: Cadillac Releases Details on New V6 Engine Family

[Drew Dowdell]

[url="http://www.cheersandgears.com/_/cadillac-news/"]Cadillac[/url] released details for two of the engines that will be offered in the [url="http://www.cheersandgears.com/_/cadillac-news/cadillac-ct6-reveals-itself-in-new-commerical-r2655"]2016 Cadillac CT6[/url] today. While both engines share familiar displacements with existing engines at Cadillac and the rest of GM, these new engines are launching an all new engine architecture for Cadillac.

First up is the all-new 3.6 liter, naturally-aspirated V6. The headline features of the new 3.6 are Active Fuel management and stop/start technology. The Active Fuel Management cuts two of the cylinders during light throttle conditions to save fuel. During idle, vehicles with cylinder deactivation typically need to run all cylinders to maintain expected refinement. The new 3.6 resolves that issue by adding automatic start/stop. These combined technologies contribute to an up to 9% increase in fuel economy.

Also helping with fuel economy is a new cylinder head design. Intake and exhaust valves are 6% larger and that helps to increase fuel mixture and flow. The new cylinder head and combustion chamber design allow for better low-end torque.

An all new cooling system send coolant evenly around each cylinder rather than the typical flow back process used today. This allows the water jackets in the head and block to be smaller which also allows for a smaller water pump and less coolant. The smaller water pump requires less energy to drive but when combined with the new cooling system allows for faster warm up and more evenly distributed cooling.

Cadillac benchmarked the [url="http://www.cheersandgears.com/_/infiniti-news/"]Infiniti[/url] 3.7 liter V6 for quietness and refinement. Using a new cam drive system, a stiffer aluminum block, a 2 stage oil pump, and stiffened structural oil pan all come together to bring the new 3.6 to be up to 4dB quieter at idle.

The new 3.6 V6 is SAE certified at 335 horsepower and 284 lb-ft of torque, up from 321 horsepower and 275 lb-ft in the current 3.6.

This engine will be a Cadillac exclusive engine at launch and for some time after.

Also gaining all of those improvements and more is a new 3.0 Twin-Turbo V6. At launch, the 3.0 TT will be the only engine made that combines turbo-charging, start-stop, and cylinder deactivation into a single engine.

The turbo chargers are similar to the ones used in the Cadillac ATS-V. They are low-inertia units that allow for fast spooling and very low throttle lag.

This new TTV6 is estimated to produce 400 horsepower and 400 lb-ft of torque which gives it one of the highest horsepower per liter ratings (133 hp/l) of any DOHC V6. The 400 horsepower rating puts Cadillac's new 3.0TT while above the output of the [url="http://www.cheersandgears.com/_/bmw-news/"]BMW[/url] 740i (315hp) and [url="http://www.cheersandgears.com/_/audi-news/"]Audi[/url] A7 3.0 S/C (310hp).

The 3.0TT will remain a Cadillac exclusive.

Both engines will be built at GM's Romulus Powertrain Facility outside of Detroit Michigan and will each be paired with new 8-speed automatics which we will detail in another article.

Watch our [url="http://www.cheersandgears.com/_/auto-show-news/ny-auto-show/"]2015 New York Auto Show[/url] category for more information on the Cadillac CT6.

[b]Source: [/b]Cadillac Media

Cadillac Press Releases on Page 2 and 3

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[font=arial]All-New, Advanced 3.6L V-6 to Drive Cadillac CT6[/font]
[center][size=2][size=2][size=2][i][size=1]Next-gen engine sets efficiency, refinement and durability benchmarks[/size][/i][/size][/size][/size][/center]

[size=1][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][b]DETROIT [/b]– An all-new 3.6L V-6 engine debuts in the 2016 Cadillac CT6, setting benchmarks for efficiency, refinement and durability in the brand’s range-topping large luxury performance sedan. [/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size]

[size=1][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2]The clean-sheet engine design is the fourth generation of GM’s acclaimed DOHC V-6 engine family and incorporates new features, including Active Fuel Management (cylinder deactivation) and stop/start technology to enhance fuel economy up to a General Motors’-estimated 9 percent when compared to the previous engine. [/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size]

[size=1][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2]Noise-reducing features, including an all-new cam drive system, contribute to the new 3.6L being up to 4 dB quieter at idle and under low load driving conditions than the benchmark Infiniti 3.7L V-6. [/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size]

[size=1][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2]It also advances performance and fuel economy-optimizing technologies introduced on previous generations, including direct injection and continuously variable valve timing. Output is SAE certified at 335 horsepower (250 kW) and 284 lb-ft of torque (385 Nm). [/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size]

[size=1][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2]“This new 3.6L V-6 raises the bar for all naturally aspirated V-6 engines in the industry and perfectly augments the CT6’s new standard for sophistication,” said Ameer Haider, assistant chief engineer for V-6 engines. “It builds on the established strengths of previous Cadillac engines, pushing the technologies to new heights and introducing new ones that take performance, refinement and efficiency to benchmark levels.” [/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size]

[size=1][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2]GM’s Active Fuel Management system temporarily deactivates two of the 3.6L’s cylinders in light-load driving conditions to enhance fuel efficiency and seamlessly reactivates them when the driver demands full power. [/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size]

[size=1][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2]With an efficiency-enhancing stop/start system, the engine is shut down in certain driving conditions such as stop-and-go city driving to reduce fuel consumption, automatically restarting when the driver takes his or her foot off the brake pedal. [/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size]


[size=1][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2]Additional engine highlights include:[/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][list]
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[size=1][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2]Stronger, stiffer aluminum block with increased structure in the bulkheads for superior rigidity [/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size]
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[size=1][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2]Tough, refined rotating assembly with a stiff forged-steel crankshaft, friction-reducing polymer-coated pistons and strong high-copper-content, sinter-forged connecting rods[/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size]
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[size=1][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2]New four-cam phasing system with intermediate park technology that enhances efficiency by enabling late inlet valve closing in certain conditions[/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size]
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[size=1][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2]All-new, patented “targeted” cooling system that provides strategic cooling of the engine’s hottest areas while simultaneously fostering faster warm-up to enhance efficiency[/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size]
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[size=1][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2]New, higher-flow cylinder heads that enhance direct injection performance and feature integrated exhaust manifolds[/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size]
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[size=1][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2]Revised, simplified timing drive system with cushioned chain sprockets contributing to quieter engine operation[/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size]
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[size=1][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2]All-new lubrication system with a variable-displacement, two-stage oil pump that enhances efficiency. It is located inside the oil pan, which contributes to greater noise abatement [/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size]
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[size=1][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2]“The new 3.6L is designed to deliver peak performance, efficiency and refinement with maximum durability – and minimal maintenance,” said Haider. “Those attributes put it at the forefront of naturally aspirated V-6 engine offered in any luxury car around the world.”[/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size]

[size=1][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2]An [size=2][size=2][size=2][b]all-new Hydra-Matic 8L45 paddle-shift eight-speed automatic transmission[/b][/size][/size][/size][/size] is paired with the new 3.6L V-6 in the CT6, elevating the CT6’s driving experience with one of the luxury market’s smoothest, quietest and most efficient powertrain combinations. [/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size]

[size=1][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2]In addition to the CT6, the 2016 Cadillac ATS and CTS will offer the all-new 3.6L, where they are expected to lead their respective segments in fuel economy and non-boosted V-6 power. Also, a [size=2][size=2][size=2][b]new 3.0L twin-turbocharged engine[/b][/size][/size][/size][/size] based on the same architecture will be offered on the CT6. [/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size]

[size=1][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][b]Stronger, quieter foundation[/b][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size]
[size=1][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2]Structurally, the all-new 3.6L V-6 is similar to the proven, award-winning design of the previous V-6 engines, including an aluminum, deep-skirt cylinder block. [/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size]

[size=1][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2]The optimal 60-degree cylinder angle is retained, with the bore size enlarged from 94mm to 95mm and the bore centers stretched from 103mm to 106mm. The cylinder block features six-bolt main bearing caps and inter-bay breather vents that enhance power and oil flow management. [/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size]

[size=1][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2]A larger crankshaft bore diameter and wider bearing cap bulkheads in the block provide higher main bearing load-carrying capability. The block also accommodates larger, 12mm cylinder head bolts to provide greater clamping strength for the engine’s higher output. [/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size]

[size=1][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2]The crankshaft is forged from 1538MV steel and inherently stiffer than a conventional cast-iron crankshaft, contributing significantly to the engine’s smoothness, quietness and durability. [/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size]

[size=1][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2]Attached to the crankshaft are high-strength connecting rods and pistons. The rods are sinter-forged and composed of a high-copper alloy that stands up to high heat and resists bending, while the polymer-coated hypereutectic pistons are designed to minimize friction, allowing for a tighter piston-to-bore clearance that results in quieter operation. [/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size]

[size=1][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2]The new 3.6L V-6 also incorporates oil-spray piston cooling, which helps reduce noise, lower combustion temperatures and enhance durability by drenching the underside of each piston and the surrounding cylinder wall in an extra layer of cooling, friction-reducing engine oil. [/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size]


[size=1][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][b]Continuously variable valve timing with intermediate park feature[/b][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size]
[size=1][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2]Camshaft phasing allows the greatest variances in valve timing to make the most of power and efficiency. The new 3.6L V-6 engine takes that technology to the next level with intermediate park technology for the intake camshaft phasers. [/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size]

[size=1][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2]Because optimal part-load efficiency requires retarding the intake cams to reduce pumping losses, the effect also reduces the effective compression ratio, which affects the engine’s cold-start performance. Conventional cam phasing system authority is limited by how far the intake cams can be retarded in the parked position without affecting cold starting. [/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size]

[size=1][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2]Intermediate park technology, which incorporates an intermediate-lock intake variable valve timing cam phaser, allows the cams to be parked at the most favorable position for cold starting, while expanding the amount of intake cam retard for other conditions by adding another 20 degrees of intake phaser authority. This enhances fuel efficiency and reduces emissions. [/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size]

[size=1][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][b]Targeted cooling system[/b][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size]
[size=1][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2]Unlike conventional systems, which force coolant flow from the front of the block to the back, the new 3.6L’s patented targeted cooling system sends coolant simultaneously to each water jacket in the heads and block. [/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size]

[size=1][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2]This new, parallel-flow design maximizes heat extraction in the area of the upper deck, intake and exhaust valve bridges in the heads and integrated exhaust manifold with a minimal amount of coolant. The result is more even and consistent cooling, which enhances performance, and faster engine warmup, which improves cold-start efficiency and reduces emissions. [/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size]

[size=1][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2]Additionally, the strategic sizing of the coolant jackets in the head and the block reduces the cooling system thermal inertia, allowing the use of a smaller water pump, which requires about 50 percent less power to drive, enhancing fuel efficiency and even allowing a lower overall height of the cylinder block. [/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size]

[size=1][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][b]New cylinder head design[/b][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size]
[size=1][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2]An all-new cylinder head design builds on the airflow attributes of the current V-6, supporting a broader power band that ensures excellent low-rpm torque, for strong power at take-off, and excellent airflow at high-rpm, for greater horsepower. [/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size]

[size=1][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2]Engineers achieved that through increased in-cylinder mixture motion, a faster burn rate of the air-fuel mixture and attributes that took full advantage of the new intermediate park cam phasing system. [/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size]

[size=1][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2]Highlights include:[/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][list]
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[size=1][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2]The intake valves are 6 percent larger, resulting in a 5-percent increase in flow capacity and a significant 25 percent increase in in-cylinder mixture motion[/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size]
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[size=1][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2]The exhaust valves are also 6 percent larger, for a 10-percent increase in flow capacity[/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size]
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[size=1][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2]The injector angle was increased from 22 degrees to 24 degrees, which helps reduce emissions and oil dilution [/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size]
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[size=1][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2]The adoption of a smaller, 12mm spark plug (vs. the previous 14mm plug) allows it to be more centrally located in the cylinder for improved flame propagation and greater light-load efficiency [/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size]
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[size=1][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2]A combustion chamber design to promote in-cylinder mixture motion, achieve a faster burn rate and increase dilution tolerance to take full advantage of the intermediate park cam phasing system [/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size]
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[size=1][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2]The new head design also has improved combustion chamber cooling enabled by the patented targeted cooling system, which reduces the chance for knock and enhance high-load efficiency. [/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size]

[size=1][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2]An integrated exhaust manifold rounds out the head’s features, saving weight over a conventional, separate head/manifold assembly. [/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size]

[size=1][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][b]Direct injection and Active Fuel Management[/b][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size]
[size=1][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2]The all-new 3.6L V-6 continues to employ direct fuel injection to make the most of efficiency and performance. Along with the placement of the fuel injector in the combustion chamber, the piston top is carefully shaped to promote a through mix of the air and fuel, and direct the fuel spray to ensure a more complete combustion. [/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size]

[size=1][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2]A higher-capacity engine-driven fuel pump supports the higher output of the new engine and contributes better fuel atomization, which enhances performance, and reduced emissions. [/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size]

[size=1][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2]Active Fuel Management, also known as cylinder deactivation, imperceptibly shuts down the No. 2 and No. 5 cylinders in certain light-load driving conditions to save fuel. [/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size]


[size=1][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][b]Refinement and durability[/b][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size]
[size=1][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2]A number of new and enhanced features are designed to make the all-new 3.6L V-6 one of the industry’s quietest, smoothest and most durable engines: [/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size]
[list]
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[size=1][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][b]Oiling system – [/b]It’s all-new and features a dual-pressure-control and variable-displacement vane pump that enhances efficiency by optimizing oil pressure as a function of engine speed. The oil pump is relocated beneath the cylinder block, inside the oil pan, contributing to the engine’s smoother, quieter operation[/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size]
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[size=1][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][b]Two-piece structural oil pan[/b] – For stiffness and strength, the oil pan features an aluminum structural upper section. A stamped steel lower section provides optimal noise-absorption characteristics, for quieter performance. [/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size]
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[size=1][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][b]Two-stage PCV system[/b] – This revolutionary system maintains low oil consumption. If features a pre-separator between the block and the engine’s rear cover and a high-efficiency separator in the center of the block’s “V.” [/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size]
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[size=1][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][size=2][b]Camshaft drive[/b] – It is all-new, with a simpler design – two chains and six sprockets vs. the previous three chains and nine sprockets – with lower chain loads, which enhances durability. The lower tension of the chain drive, along with cushioned ring sprockets, also reduces noise and vibration.[/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][/size][

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[smk4565]

The 3.6 peak power is again at 6800 rpm, the current V6 makes peak torque at 4800 rpm, the new one is at 5300.  So you really have to rev the crap out of that engine to get the power from it, which was always something I didn't like about the Gen 2 CTS or the Infiniti G37.  Unless you are above 4,000 RPM those cars have no power.

 

The twin turbo makes good power, that is a proper engine for Cadillac.  What is curious is they compare it to the A7 and 740i, so is that the target competition for the CT6?  If so, Cadillac does realize those cars offer a V8 right? 

[smk4565]

Cadillac benchmarked the Infiniti 3.7 liter V6 for quietness and refinement. Using a new cam drive system, a stiffer aluminum block, a 2 stage oil pump, and stiffened structural oil pan all come together to bring the new 3.6 to be up to 4dB quieter at idle.

 

Why on earth would you benchmark the loudest engine in the entry-moderate level luxury segment for your high end luxury car?  And an engine that came out in 2008 and hasn't changed since.  Shouldn't they benchmark a Lexus LS460 or something for refinement?

[Drew Dowdell]

The 3.6 peak power is again at 6800 rpm, the current V6 makes peak torque at 4800 rpm, the new one is at 5300.  So you really have to rev the crap out of that engine to get the power from it, which was always something I didn't like about the Gen 2 CTS or the Infiniti G37.  Unless you are above 4,000 RPM those cars have no power.

 

The twin turbo makes good power, that is a proper engine for Cadillac.  What is curious is they compare it to the A7 and 740i, so is that the target competition for the CT6?  If so, Cadillac does realize those cars offer a V8 right?

 

These aren't the only engines for the CT6, just the newest ones to talk about. 

[Drew Dowdell]

 

Cadillac benchmarked the Infiniti 3.7 liter V6 for quietness and refinement. Using a new cam drive system, a stiffer aluminum block, a 2 stage oil pump, and stiffened structural oil pan all come together to bring the new 3.6 to be up to 4dB quieter at idle.

 

Why on earth would you benchmark the loudest engine in the entry-moderate level luxury segment for your high end luxury car?  And an engine that came out in 2008 and hasn't changed since.  Shouldn't they benchmark a Lexus LS460 or something for refinement?

 

 

The LS460 is a V8.  Apples/Oranges. 

 

There is a difference between engine loudness and engine loudness that you can hear from inside the car. 

 

From auto-decibel-db.com - rating at idle

2009 Infiniti G37 3.7 - 38.5

2012 Infiniti JX 3.5 - 41.0

2012 Infiniti M37 - 42.9

Lexus 3.5 - 40.9

2013 Cadillac 3.6 - 42.4

Buick 3.6 - 41.4

Audi 3.0 - 42.9

Mercedes E350 - 38.2

Jaguar 3.0 V6 - 44.4

Acura RLX 3.5 - 39.5

BMW 535i - 42.8

 

If Cadillac did as they claim and shaved 4dB off of the Infiniti number, that would make them extremely class-leading no matter which Infiniti model they started from. At worst, it would put the new 3.6 in the 37 dB - 38 dB range. At best, it would be in the 34 dB range (which I doubt they'd hit)

[smk4565]

Why is that 3.6 even in the CT6?  Unless the CT6 is replacing the XTS in a sense and they need and entry level model around $50k for the fleets and old people.  While they are making "all new" engines, where is the V8?  Look across the automotive landscape and no one is selling a sedan with a naturally aspirated V6 for over $50k with the exception of the E-class which is losing the 3.5 liter V6 after this year.   The GS350, Q70 and RLX are all $48k.

[smk4565]

 

 

Cadillac benchmarked the Infiniti 3.7 liter V6 for quietness and refinement. Using a new cam drive system, a stiffer aluminum block, a 2 stage oil pump, and stiffened structural oil pan all come together to bring the new 3.6 to be up to 4dB quieter at idle.

 

Why on earth would you benchmark the loudest engine in the entry-moderate level luxury segment for your high end luxury car?  And an engine that came out in 2008 and hasn't changed since.  Shouldn't they benchmark a Lexus LS460 or something for refinement?

 

 

The LS460 is a V8.  Apples/Oranges. 

 

There is a difference between engine loudness and engine loudness that you can hear from inside the car. 

 

From auto-decibel-db.com - rating at idle

2009 Infiniti G37 3.7 - 38.5

2012 Infiniti JX 3.5 - 41.0

2012 Infiniti M37 - 42.9

Lexus 3.5 - 40.9

2013 Cadillac 3.6 - 42.4

Buick 3.6 - 41.4

Audi 3.0 - 42.9

Mercedes E350 - 38.2

Jaguar 3.0 V6 - 44.4

Acura RLX 3.5 - 39.5

BMW 535i - 42.8

 

If Cadillac did as they claim and shaved 4dB off of the Infiniti number, that would make them extremely class-leading no matter which Infiniti model they started from. At worst, it would put the new 3.6 in the 37 dB - 38 dB range. At best, it would be in the 34 dB range (which I doubt they'd hit)

 

But that is how you get ahead, you benchmark your $60,000 car to be better than Lexus's $80,000 car, not Infiniti's $40,000 car.  Funny how the Mercedes 3.5 liter is the quietest on that list when it is the oldest engine in the M-B lineup and being phased out next year.

[Drew Dowdell]

 

 

 

Cadillac benchmarked the Infiniti 3.7 liter V6 for quietness and refinement. Using a new cam drive system, a stiffer aluminum block, a 2 stage oil pump, and stiffened structural oil pan all come together to bring the new 3.6 to be up to 4dB quieter at idle.

 

Why on earth would you benchmark the loudest engine in the entry-moderate level luxury segment for your high end luxury car?  And an engine that came out in 2008 and hasn't changed since.  Shouldn't they benchmark a Lexus LS460 or something for refinement?

 

 

The LS460 is a V8.  Apples/Oranges. 

 

There is a difference between engine loudness and engine loudness that you can hear from inside the car. 

 

From auto-decibel-db.com - rating at idle

2009 Infiniti G37 3.7 - 38.5

2012 Infiniti JX 3.5 - 41.0

2012 Infiniti M37 - 42.9

Lexus 3.5 - 40.9

2013 Cadillac 3.6 - 42.4

Buick 3.6 - 41.4

Audi 3.0 - 42.9

Mercedes E350 - 38.2

Jaguar 3.0 V6 - 44.4

Acura RLX 3.5 - 39.5

BMW 535i - 42.8

 

If Cadillac did as they claim and shaved 4dB off of the Infiniti number, that would make them extremely class-leading no matter which Infiniti model they started from. At worst, it would put the new 3.6 in the 37 dB - 38 dB range. At best, it would be in the 34 dB range (which I doubt they'd hit)

 

But that is how you get ahead, you benchmark your $60,000 car to be better than Lexus's $80,000 car, not Infiniti's $40,000 car.  Funny how the Mercedes 3.5 liter is the quietest on that list when it is the oldest engine in the M-B lineup and being phased out next year.

 

 

There is little point benchmarking a V8 against a V6 and vice versa.   But since you insist...

 

Lexus GX460 - 42.3 (I can't find a non-hybrid LS entry)

Lexus LS600h L - 41.2

 

In any case, there is so little difference between all of these. For reference, 35db is virtually library silent. 

[Z-06]

But that is how you get ahead, you benchmark your $60,000 car to be better than Lexus's $80,000 car, not Infiniti's $40,000 car.  Funny how the Mercedes 3.5 liter is the quietest on that list when it is the oldest engine in the M-B lineup and being phased out next year.

 

 

You benchmark to be quieter than quietest, not quieter than the sound of the more expensive car. Possibly E350 was not benchmarked because it is being phased out and the new turbo Benz is possibly louder than the E350. And 4db is still greater than 0.3 db difference.

 

I am not a fan of the 3.6 N/A as I have said in the past, Cadillac should use a turbo engine to replace the 3.6 NA, but don't challenge intelligence just to find faults.

[Drew Dowdell]

Again, lets keep in mind that 35 dB should be considered "ignition off". So 36 dB is the absolute lowest limit for any gasoline engine at idle unless you bring in technology like active noise cancellation. Anything between 37 and 38 is class leading.   If Cadillac's claim is true, then they will have the quietest engine on the market. 

[Z-06]

This is again typical GM lack or failure of PR and Marketing.

 

You are bringing a car that is going to be the most expensive car in the lineup and you showcase engines for the car that are weaker than the strongest engine of the lesser car.

 

Not good for people like SMK who are already baying Cadillac's blood for failure. Either bring the biggest phallus for the bacchanal or don't show off at all. Set the foot right Johan and Ewe. But then again, expecting something like that from them is asking for sending man on Saturn.

[Drew Dowdell]

Did I miss where the all of the CT6 details have been released?

[G. David Felt]

GM has proven the ability to build class leading engines with HP and Torque equal to or greater than HP. Now they show off an engine like this on a new auto. This is the one time I wish Cadillac had kept their mouth shut till the full engine line was ready for the CT6 and then start off with V8, Diesel, V6 and Alternative fuel.

[aurora97]

The 1996 LT4 V8 had 330 hp.

The 2016 3.6L V6 has 335 hp.

 

One can only imagine the type of performance Cadillac can have with a 2nd generation Northstar V8.

[Drew Dowdell]

Thought about it a bit more.  In this class, it doesn't matter who Cadillac benchmarked.  If they made it into the 37 dB - 38 db range, they will have just about maxed out.   There is a lower limit to idle quietness and that limit is 35 db  (A Lexus LS600h L which is powered on but without the gas motor running is 35.5 dB).  There simply is no way to do better.

[smk4565]

Sound at 60 or 70 mph I think matters note than idle. How often do cars idle especially now they they all have start/stop and the engines are shutting down at stop lights.

[Drew Dowdell]

Sound at 60 or 70 mph I think matters note than idle. How often do cars idle especially now they they all have start/stop and the engines are shutting down at stop lights.

Everything in this class is virtually unhearable at speed. Even my old CRV can do that. Road and wind noise are bigger concerns

[smk4565]

That is what I meant, cabin noise levels at highway speeds.  Engine noise isn't a problem in most of these cars because the V8 cars don't really need to rev much past 2500 rpm for every day driving, and even a lot of these turbo sixes make a lot of low end torque.

[ZL-1]

NA 3.6L V6 spunds a little odd given that Cadillac seems to be willing to align itself with the market trends... Maybe it will be the plug-in hybrid model's ICE?...

[smk4565]

Rumor is the new E-class has a quad-turbo inline six that in gas form makes 367to 435 hp and as much as 553 lb-ft, and in diesel form makes 313 to 400 hp and 516 lb-ft to 627 lb-ft of torque.   They are bringing a pretty big gun to the fight, Cadillac may want to rethink that 3.6 V6 and just make the 400 hp engine standard.

[Z-06]

Rumor is the new E-class has a quad-turbo inline six that in gas form makes 367to 435 hp and as much as 553 lb-ft, and in diesel form makes 313 to 400 hp and 516 lb-ft to 627 lb-ft of torque.   They are bringing a pretty big gun to the fight, Cadillac may want to rethink that 3.6 V6 and just make the 400 hp engine standard.

 

I was wondering how long would it take for this information to get parroted on a Cadillac thread.

[Z-06]

On thinking a little bit about N/A 3.6L and giving Cadillac a benefit of doubt, may be that engine will be installed for hybrid powertrain. As it seems nonsensical to have a turbo motor doing the work for hybrid cars.

 

Regardless, I do not think the N/A should be the engine of choice for non-hybrid applications when almost all competitors are force induced at that power level. There should be two tunes of the 3.0T to simplify the costs.

[hyperv6]

On thinking a little bit about N/A 3.6L and giving Cadillac a benefit of doubt, may be that engine will be installed for hybrid powertrain. As it seems nonsensical to have a turbo motor doing the work for hybrid cars.

 

Regardless, I do not think the N/A should be the engine of choice for non-hybrid applications when almost all competitors are force induced at that power level. There should be two tunes of the 3.0T to simplify the costs.

 

In the higher classes they are taking more and more high HP Turbo engines and combining them with electric drive or assist. Uber high MPG is not always a must have but if they can take a car improve the MPG but add to the performance these companies are going to do it.

 

Not all Hybrids are the same or out for the same mission.

 

The 3.6 I expect will be for Limo's and hearses. At least it makes more sense than the 2.5 NA in the CTS.

[Drew Dowdell]

Remember, these are Cadillac wide engines, not just CT6 engines.  This 3.6 will go into everything at Cadillac that currently runs a 3.6 N/A.  So you're looking at 3.6 N/A horsepower figures for the next CTS, ATS, SRX, and XTS refreshes (and I do expect XTS to survive a bit longer for fleet use).

 

We also don't have torque curves yet... and I will be asking my contact at Cadillac for them... but apparently they've tuned this engine for better off the line punch. Yes you still have to rev the engine to get to the peak, but that's true of all DOHC N/A 6es (see what you've done SMK? we could have had torquey pushrods in there... but noooo.)

[Drew Dowdell]

Regardless, I do not think the N/A should be the engine of choice for non-hybrid applications when almost all competitors are force induced at that power level. There should be two tunes of the 3.0T to simplify the costs.

 

You channeling a bit of SMK there?   ...   3 of the competitors have Forced Induction... the rest are Naturally Aspirated.

 

"At these power levels"

Jaguar, BMW, and Audi have forced induction.

 

Infiniti, Lexus, Acura, M-B, Hyundai Genesis, Kia K900, 300C V6... and if you want to be nice and include Lincoln are all naturally aspirated.

 

The key is the "at these power levels".  If you want more power, you need to go either to a V8 or a Turbo-6... which Cadillac will be offering as well.  It should be noted that a number of these competitors offer  less powerful base engines...  So if Cadillac is offering this 3.6 as the base engine, it will instantly have a an advantage.

[Z-06]

 

Regardless, I do not think the N/A should be the engine of choice for non-hybrid applications when almost all competitors are force induced at that power level. There should be two tunes of the 3.0T to simplify the costs.

 

You channeling a bit of SMK there?   ...   3 of the competitors have Forced Induction... the rest are Naturally Aspirated.

 

"At these power levels"

Jaguar, BMW, and Audi have forced induction.

 

Infiniti, Lexus, Acura, M-B, Hyundai Genesis, Kia K900, 300C V6... and if you want to be nice and include Lincoln are all naturally aspirated.

 

The key is the "at these power levels".  If you want more power, you need to go either to a V8 or a Turbo-6... which Cadillac will be offering as well.  It should be noted that a number of these competitors offer  less powerful base engines...  So if Cadillac is offering this 3.6 as the base engine, it will instantly have a an advantage.

 

 

May be I should I have said it better, "are or will be force induced". Yes, number of them offer less powerful base engines, but so will Cadillac in the form of 2.0T or 2.5 depending on the application.

 

So let's get back to your list.

1. M-B does/will too with the 400 and 450 or whatever the heck they are going to name the 3.0L on one bright morning.
2. Infiniti has forced induction lying in the wings as you saw at the Detroit release.
3. Lincoln/Ford has the ecoboost 2.3, 2.7 and 3.5 engines. All the company has to do is plug one in a Lincoln.
4. New - And Volvo is F-I too.
5. So the only manufacturers remaining are Lexus and Acura, which to my understanding Lexus will have one soon.
6. I do not consider Kia and Hyundai in this league because they do not offer multiple sausage lengths of "luxury" vehicles.

Hence, non forced induced vehicles are or soon to be in minority. Back to my premise, GM has no F-I motor in 300 - 375 hp range like its competitors and to me that is a drawback especially since these engines started with clean slate. And no matter how much you look at the torque curve of a N/A motor producing 80% of torque of F-I motor, it will not match the F-I jolt.

 

So no your perception of me being SMK is incorrect. I seldom make comments without looking at things comprehensively.

[smk4565]

Remember, these are Cadillac wide engines, not just CT6 engines.  This 3.6 will go into everything at Cadillac that currently runs a 3.6 N/A.  So you're looking at 3.6 N/A horsepower figures for the next CTS, ATS, SRX, and XTS refreshes (and I do expect XTS to survive a bit longer for fleet use).

 

We also don't have torque curves yet... and I will be asking my contact at Cadillac for them... but apparently they've tuned this engine for better off the line punch. Yes you still have to rev the engine to get to the peak, but that's true of all DOHC N/A 6es (see what you've done SMK? we could have had torquey pushrods in there... but noooo.)

I have a DOHC engine that is N/A and peak torque is 2800-4800 rpm, relatively low and flat curve.  If you don't go to the Honda VTEC school of engineering, you can make a DOHC engine make torque.

[ZL-1]

Remember, these are Cadillac wide engines, not just CT6 engines.  This 3.6 will go into everything at Cadillac that currently runs a 3.6 N/A.  So you're looking at 3.6 N/A horsepower figures for the next CTS, ATS, SRX, and XTS refreshes (and I do expect XTS to survive a bit longer for fleet use).

 

We also don't have torque curves yet... and I will be asking my contact at Cadillac for them... but apparently they've tuned this engine for better off the line punch. Yes you still have to rev the engine to get to the peak, but that's true of all DOHC N/A 6es (see what you've done SMK? we could have had torquey pushrods in there... but noooo.)

So are you saying the N/A 3.6L couls eventually not even make it to the CT6?

[Drew Dowdell]

 

 

Regardless, I do not think the N/A should be the engine of choice for non-hybrid applications when almost all competitors are force induced at that power level. There should be two tunes of the 3.0T to simplify the costs.

 

You channeling a bit of SMK there?   ...   3 of the competitors have Forced Induction... the rest are Naturally Aspirated.

 

"At these power levels"

Jaguar, BMW, and Audi have forced induction.

 

Infiniti, Lexus, Acura, M-B, Hyundai Genesis, Kia K900, 300C V6... and if you want to be nice and include Lincoln are all naturally aspirated.

 

The key is the "at these power levels".  If you want more power, you need to go either to a V8 or a Turbo-6... which Cadillac will be offering as well.  It should be noted that a number of these competitors offer  less powerful base engines...  So if Cadillac is offering this 3.6 as the base engine, it will instantly have a an advantage.

 

 

May be I should I have said it better, "are or will be force induced". Yes, number of them offer less powerful base engines, but so will Cadillac in the form of 2.0T or 2.5 depending on the application.

 

So let's get back to your list.

1. M-B does/will too with the 400 and 450 or whatever the heck they are going to name the 3.0L on one bright morning.
2. Infiniti has forced induction lying in the wings as you saw at the Detroit release.
3. Lincoln/Ford has the ecoboost 2.3, 2.7 and 3.5 engines. All the company has to do is plug one in a Lincoln.
4. New - And Volvo is F-I too.
5. So the only manufacturers remaining are Lexus and Acura, which to my understanding Lexus will have one soon.
6. I do not consider Kia and Hyundai in this league because they do not offer multiple sausage lengths of "luxury" vehicles.

Hence, non forced induced vehicles are or soon to be in minority. Back to my premise, GM has no F-I motor in 300 - 375 hp range like its competitors and to me that is a drawback especially since these engines started with clean slate. And no matter how much you look at the torque curve of a N/A motor producing 80% of torque of F-I motor, it will not match the F-I jolt.

 

So no your perception of me being SMK is incorrect. I seldom make comments without looking at things comprehensively.

 

 

Again, I go back to "at these power levels".  The M-B 3.0TT will likely be more in line with the new Cadillac 3.0TT terms of power.. basically around 400 hp rather than 335 horsepower.   The Infiniti turbo with be a Turbo-4 not a Turbo V6.  Lincoln has Ecoboost, but is still offering the N/A V6.   Lexus's turbo will be a Turbo-4.   All of these will be either optional step up engines with the Turbo V6 or base engines with a Turbo-4.  As nice as turbos are, a 335Hp N/A V6 is still > 240~280hp Turbo-4

[Drew Dowdell]

 

Remember, these are Cadillac wide engines, not just CT6 engines.  This 3.6 will go into everything at Cadillac that currently runs a 3.6 N/A.  So you're looking at 3.6 N/A horsepower figures for the next CTS, ATS, SRX, and XTS refreshes (and I do expect XTS to survive a bit longer for fleet use).

 

We also don't have torque curves yet... and I will be asking my contact at Cadillac for them... but apparently they've tuned this engine for better off the line punch. Yes you still have to rev the engine to get to the peak, but that's true of all DOHC N/A 6es (see what you've done SMK? we could have had torquey pushrods in there... but noooo.)

So are you saying the N/A 3.6L couls eventually not even make it to the CT6?

 

 

No. I didn't say that at all. 

 

Keep in mind that if this 3.6 is the CT6's base engine, that means the CT6 will be bigger than a 5-series yet lighter and with a 95 horsepower advantage over the base 5-er. 

[smk4565]

But the CTS competes with the 5-series, isn'tt the CT6 supposed to compete with a 7-series?

 

What we really need to see is how the CT6 is priced.   Cadillac was selling the 3.6 liter V6 in a $40,000 CTS in 2008, I can't imagine people 7 years later wanting to pay $70,000 for a car with the same engine.  Unless they price this car cheap, but Cadillac wants to price like Germans do, so I doubt the CT6 hits the market at $55k.

[Drew Dowdell]

It's the same displacement, not the same engine. Had you actually read the article, you would know that.

[hyperv6]

But the CTS competes with the 5-series, isn'tt the CT6 supposed to compete with a 7-series?

 

What we really need to see is how the CT6 is priced.   Cadillac was selling the 3.6 liter V6 in a $40,000 CTS in 2008, I can't imagine people 7 years later wanting to pay $70,000 for a car with the same engine.  Unless they price this car cheap, but Cadillac wants to price like Germans do, so I doubt the CT6 hits the market at $55k.

 

You may want to take the time to study this engine as it is not the same as stated and very advanced and compact.

[G. David Felt]

 

But the CTS competes with the 5-series, isn'tt the CT6 supposed to compete with a 7-series?

 

What we really need to see is how the CT6 is priced.   Cadillac was selling the 3.6 liter V6 in a $40,000 CTS in 2008, I can't imagine people 7 years later wanting to pay $70,000 for a car with the same engine.  Unless they price this car cheap, but Cadillac wants to price like Germans do, so I doubt the CT6 hits the market at $55k.

 

You may want to take the time to study this engine as it is not the same as stated and very advanced and compact.

 

So a much more modern engine than the going backwards to cast iron I 6 engines that MB and BMW are doing together.

[hyperv6]

 

 

But the CTS competes with the 5-series, isn'tt the CT6 supposed to compete with a 7-series?

 

What we really need to see is how the CT6 is priced.   Cadillac was selling the 3.6 liter V6 in a $40,000 CTS in 2008, I can't imagine people 7 years later wanting to pay $70,000 for a car with the same engine.  Unless they price this car cheap, but Cadillac wants to price like Germans do, so I doubt the CT6 hits the market at $55k.

 

You may want to take the time to study this engine as it is not the same as stated and very advanced and compact.

 

So a much more modern engine than the going backwards to cast iron I 6 engines that MB and BMW are doing together.

 

 

There are benefits to an Inline but there are also issues. length, weight and height.

 

Also you have to factor in that the Inline engine is somewhat a tradition just as a pushrod engine is to the Corvette.  In some cases traditions have some issues that come along vs. a clean sheet approach but tradition also ties sales to them too. It is just more in some cases of what the customer expects than anything else.

 

I think you will find in the long run a powerful more compact power plant will gain an advantage in the packaging and balance of the car. Also Cadillac has no such tradition or expectation of a Inline 6 either so no real gain in the eye of the consumer here.

 

I think this is an advantage they can exploit and make it their own.

 

Besides how often do we hear that Cadillac needs to do their own thing and not copy the other to the last mark?  I believe a properly funded GM engine program with Cadillac can generate engines as if not more advanced in all areas of size, weight, power and refinement. We have not had that kind of engine program in years but today we are looking at them entering into one to do just this.

Also with the pricing of future Cadillac's there will be no need to cut corners either.

 

I think we can already see GM is really focused on the platforms and weight. Each new model and platform shed's more pounds. Even the Malibu is losing 300 pounds and increases it size.  Yet they have not gone all in for Aluminum even yet.

Hell even their trucks are right near what the aluminum Fords are. If and when they chose to go Aluminum it will really hurt Ford as they will be back at a great deficient.

 

With Alcoa getting the government money not to increase capacity GM will be able to avoid the higher incurred cost with better supplies on the vehicles they chose to use it on.

 

Anyways lets let GM do what they do best and show us what a properly funded high tech engine can do. I think many will be surprised at what they will do. The Ecotec Turbo is only a hint at what is possible and that engine even was underfunded in pre chapter 11 days.

I think people just assume Germans have a lead on technology but the truth be said they been building pretty much the same damn car for nearly 40 years in a 3 series and have just refined it over those years. Really look at what they have as it is good but not really broken new ground.

 

[smk4565]

They may have added start/stop and cylinder shutdown to the V6, but that stuff has been around a while on other car.  Even if Cadillac is making the best naturally aspirated V6 of all time, you can get a 3.5-3.6 liter V6 in an Accord, Camry, minivan, Traverse/Colorado, Impala/Lacrosse, Charger/300/200, Altima/Maxima, Taurus/MKZ/Explorer, etc, etc.  That sort of engine is so common.   At the price point of an ATS it doesn't matter, a 335 hp V6 with 280 lb-ft is enough power for that size car, and Japanese competition has a worse V6 than that.  Get into the CT6 size and prize range and that NA V6 is a knife in a gun fight.  This is why Infiniti and Acura struggle to cross $50k, and the Lexus GS has sold like crap for the past 15 years, even when offering a V8 for the price of the German sixes.  You need something special to sell cars at $70,000+

[balthazar]

Yet somehow its OK when the s-class comes with a V6.

[Drew Dowdell]

They may have added start/stop and cylinder shutdown to the V6, but that stuff has been around a while on other car.  Even if Cadillac is making the best naturally aspirated V6 of all time, you can get a 3.5-3.6 liter V6 in an Accord, Camry, minivan, Traverse/Colorado, Impala/Lacrosse, Charger/300/200, Altima/Maxima, Taurus/MKZ/Explorer, etc, etc.  That sort of engine is so common.   At the price point of an ATS it doesn't matter, a 335 hp V6 with 280 lb-ft is enough power for that size car, and Japanese competition has a worse V6 than that.  Get into the CT6 size and prize range and that NA V6 is a knife in a gun fight.  This is why Infiniti and Acura struggle to cross $50k, and the Lexus GS has sold like crap for the past 15 years, even when offering a V8 for the price of the German sixes.  You need something special to sell cars at $70,000+

 

If the 3.6 is not your cup of tea... there is going to be a 400 hp 3.0TT offered in the CT6.  It says so right in the article...I know because I wrote it. 

 

What's the problem with having choices?

[smk4565]

The diesel S-class had 455 lb-ft and gt 31 mpg, that was a good engine, but it is gone.    The other V6 is in the plug in hybrid S-class, but that car also has 436 hp/479 lb-ft and should be best in segment fuel economy.  They aren't putting NA V6's with 280 lb-ft of torque in an American market S-class. I think the new inline sixes will end up in an S450 base model for the American market.  In Europe they can do whatever they want, because they dominate the segment so much, and there is almost zero American or Japanese competition there.

[smk4565]

 

They may have added start/stop and cylinder shutdown to the V6, but that stuff has been around a while on other car.  Even if Cadillac is making the best naturally aspirated V6 of all time, you can get a 3.5-3.6 liter V6 in an Accord, Camry, minivan, Traverse/Colorado, Impala/Lacrosse, Charger/300/200, Altima/Maxima, Taurus/MKZ/Explorer, etc, etc.  That sort of engine is so common.   At the price point of an ATS it doesn't matter, a 335 hp V6 with 280 lb-ft is enough power for that size car, and Japanese competition has a worse V6 than that.  Get into the CT6 size and prize range and that NA V6 is a knife in a gun fight.  This is why Infiniti and Acura struggle to cross $50k, and the Lexus GS has sold like crap for the past 15 years, even when offering a V8 for the price of the German sixes.  You need something special to sell cars at $70,000+

 

If the 3.6 is not your cup of tea... there is going to be a 400 hp 3.0TT offered in the CT6.  It says so right in the article...I know because I wrote it. 

 

What's the problem with having choices?

 

The ATS should be 2.0T base, 3.6 V6 optional, that 2.5 liter should be gone.  CTS could probably start with the 3.6 V6 base, the 2.0T isn't getting that big of a fuel economy advantage, so might as well dump it.   If the CT6 is supposed to compete with the big boys, it should have the 3.0 TT V6 standard, and a 4.0 TT V8 optional.   I like choices when they are good choices, or when a diesel engine or hybrid is a choice.   Not when you get to pick from the Malibu's 4-banger, a 2.0 turbo or a V6 with no torque below 4,000 rpm.

[Drew Dowdell]

Why must the CTS start with the 3.6 base when the 5-series and A6 both start with turbo-4s... and much less powerful ones at that...

[hyperv6]

Why must the CTS start with the 3.6 base when the 5-series and A6 both start with turbo-4s... and much less powerful ones at that...

 

There is no sense just offering a V6 CTS  if you plan to go to Europe. Now since GM really does not offer the gutted model like the others in Europe. I would only eliminated the NA 4 and keep the Turbo 4. I have driven one and it works well and will only become more important in the future.

 

In this segment you need to let the markets determine what they want and supply  it.

 

Only one who is single market minded with no view of the future will not understand this. [not you Drew]

 

A turbo 4 in Europe alone is as important as the Diesel. We may buy a lot of loaded up Benz and BMW's here, over there they are much less common and the lower powered models dominate. Gas prices and economy there are much different.

 

At this point the whole Cadillac engine lineup will be tossed around so what we are arguing about today will be much different in about 5 years and on.

Edited March 29, 2015 by hyperv6

[G. David Felt]

Let Cadillac refine and build their own Turbo 4 to V8 Engine line for the US market and then take it to Europe and pounce on MB and BMW.

[smk4565]

Why must the CTS start with the 3.6 base when the 5-series and A6 both start with turbo-4s... and much less powerful ones at that...

To be better and give the customer more power.  The 2.0T has only a 1 mpg advantage over the 3.6 V6, if the V6 is getting an improvement in fuel economy, then that advantage is gone.  Most V6s are getting 30 mpg highway, which is all the Cadillac 4-cylinder gets.

 

The 2.0T is good for the base ATS because the C300, 328i and A4 have a turbo 4.  I see the CTS more in the spot of the Infiniti Q50, you have to give the customer more to get some sales.  The Lexus GS and E-class have standard V6s also, as does the Acura RLX is you want to call that a competitor, it is about CTS size and price.

[smk4565]

Let Cadillac refine and build their own Turbo 4 to V8 Engine line for the US market and then take it to Europe and pounce on MB and BMW.

Europe is a tough nut to crack, they could sell CTS-V's for 30,000 Euro and the E-class and 5-series would probably still crush it in sales.  Europeans don't want an American car, so they could have to build something so spectacular to blow people away, then put in a dealer network.  The barriers to entry are huge.

[hyperv6]

 

Why must the CTS start with the 3.6 base when the 5-series and A6 both start with turbo-4s... and much less powerful ones at that...

To be better and give the customer more power.  The 2.0T has only a 1 mpg advantage over the 3.6 V6, if the V6 is getting an improvement in fuel economy, then that advantage is gone.  Most V6s are getting 30 mpg highway, which is all the Cadillac 4-cylinder gets.

 

The 2.0T is good for the base ATS because the C300, 328i and A4 have a turbo 4.  I see the CTS more in the spot of the Infiniti Q50, you have to give the customer more to get some sales.  The Lexus GS and E-class have standard V6s also, as does the Acura RLX is you want to call that a competitor, it is about CTS size and price.

 

 

What you are missing is the 3.6 has a narrow torque band. The Turbo 4 is a much more fun engine to drive. Also in my experience the Turbo will return much better MPG than the ratings than the 3.6. My 3.6 hits the posted numbers and the Turbo is at lease 5 MPG or better than the posted EPA numbers. Even if I remote start I never hit the 19 MPG as it will only drop to around 23 MPG. Summer city driving is 25-26 MPG.

 

If I drive careful I can get a little better than the posted MPG on the 3.6 but you really have to try as vs. the 2.0 you can drive it like you stole it.

 

The torque on the 2.0 is flat from 1800 RPM to 5300 RPM. The 3.6 really has no life till 3500 and you have to make the most with it to extract the power. The Torque never get near the 2.0 at 315 FT LBS.

 

Most of the V6 engines out there are only getting 30 Highway and that is if you drive carefully. My 3.6 will do 22 City and 31 Highway but you have to use care as the MPG is not forgiving. This make the 2.0 that much more a joy to drive along with the added Torque.

 

When I can set off the traction control at over 50 MPG with the 2.0 it should give you an idea of the torque on tap. The first time I had it happen I felt the loss of power and the light on the dash came on. I though I broke something.

[smk4565]

So engineer the V6 to make peak torque at 3,500-5,300 rpm, as the Mercedes V6 does.  My car is naturally aspirated and makes peak torque at 2800 rpm.  The problem with Infiniti and Cadilllac is they set their engines to make max power at 7,000 rpm and max torque over 5,000, which is pointless for everyday driving, but they probably want to be able to put 330 hp in an advertisement.

 

And I am saying make the 3.6 V6 the value engine in the $45-50k CTS, make the new twin-turbo 3.0 the main line engine in the CTS that sell in the 50-60k range that competes with the 535i and A6 and E350/E400.   The ATS-V 460 hp engine could still be used in a V-sport CTS at $65k, which would be like their S6 or 550i competitor, and the V-series obviously above that.

 

CT6 should have a base turbo-diesel V6, 275 hp, 440 lb-ft, 8-speed and 40 mpg highway, 3.0 TT V6 with 400 hp , plug-in hybrid TT V6 and a twin turbo V8 with plug-in hybrid.  The same engine line would work in a CT8 with a V12 added at the top.

 

For economies of scale, the twin turbo V12 for the CT8 flagship could also be used in a mid-engine Cadillac super car with 200+ mph top speed and 0-60 under 3.0 seconds.  This would be ultimate GM sports car competing with the Lamborghini Hurcan and Ferrari 488, the Corvette would stay front engine rear drive in the $50-100k range.

[G. David Felt]

So engineer the V6 to make peak torque at 3,500-5,300 rpm, as the Mercedes V6 does.  My car is naturally aspirated and makes peak torque at 2800 rpm.  

SMK you ALWAYS say MB is the best. Yet in using BING and GOOGLE I can only find the following information:

 

From 1954 to 1955 2 formula F1 wins of their own cars, engines, etc. till they withdrew after the 1955 crash at Lemans.

 

Returned as an engine supplier in 1994 only.

 

So according to Wikipedia, they have 100 wins as an engine supplier, two as constructor and four as drivers of Mercedes Benze sponsored Auto's.

 

So with this if accurate I can see where you would say they have great engines, but the best? I have a hard time saying that.

 

Where is MB wins for Nascar?

Where is MB wins for NHRA drag racing?

Where is MB wins for Kart racing?

Where is MB wins for Truck Racing?

Where is MB wins for Monster Trucks?

Where is MB wins for Stock car?

 

Yes both companies have been building auto's for a long time, both have been in and out of auto racing. both have had some quality success and quality disgrace issues.

 

Yet I see more GM racing than MB racing and GM seems to be building more auto's and sales. thought I realize that based on your logic than VW should be superior to MB since they are the worlds largest auto company followed by Toyota, GM and MB flipping places quarter to quarter.

 

If MB is better in every way all the time than GM specifically Cadillac, then why is it so hard to find MB in the larger racing circuits that is followed by more people and why do they not seem to be well known for racing?

 

People consider MB a Luxury auto maker here in the US and their entry in the eco space on up and the commercial space is going to change peoples perception of MB.

[smk4565]

Formula 1 is the highest form or Motorsport and Mercedes is the best at it right now although Ferrari got a win over them today.

But the point was made how the torque is more usable on the 2.0T engine, all I am saying is you can tune a naturally aspirated V6 to make peak torque in the 3000-3500 rpm range. BMW non turbo engines used to be pretty good at that. I would think Cadillac could get more usable torque from the V6 than they can get from the 2.0t if they wanted to. Thus no need for the 2.0t CTS.

[ZL-1]

 

 

Remember, these are Cadillac wide engines, not just CT6 engines.  This 3.6 will go into everything at Cadillac that currently runs a 3.6 N/A.  So you're looking at 3.6 N/A horsepower figures for the next CTS, ATS, SRX, and XTS refreshes (and I do expect XTS to survive a bit longer for fleet use).

 

We also don't have torque curves yet... and I will be asking my contact at Cadillac for them... but apparently they've tuned this engine for better off the line punch. Yes you still have to rev the engine to get to the peak, but that's true of all DOHC N/A 6es (see what you've done SMK? we could have had torquey pushrods in there... but noooo.)

So are you saying the N/A 3.6L couls eventually not even make it to the CT6?

 

 

No. I didn't say that at all. 

 

Keep in mind that if this 3.6 is the CT6's base engine, that means the CT6 will be bigger than a 5-series yet lighter and with a 95 horsepower advantage over the base 5-er. 

 

I honestly hope Cadillac does not make the mistake of aiming any of the CT6 variants at the 5-Series segment. The N/A V6 could be an entry-level engine for North America (2.0L turbo will play that role in China), but it could also be the hybrid's mill...

Edited March 30, 2015 by ZL-1