Direct Injection Connection

[Flybrian]

Direct Injection Connection
Flint Engine South building GM's next generation engine
THE FLINT JOURNAL FIRST EDITION
Thursday, February 01, 2007 | By Todd Seibt

In April, General Motors Flint Engine South plant is planning to start production of direct-injection V-6 engines. GM's other direct injection moves:

• 2006: A 2.0-liter four-cylinder Ecotec turbo engine with direct injection was introduced in the Pontiac Solstice GXP and Saturn Sky Red Line roadsters
• END OF 2008: GM WILL PRODUCE AS MANY AS 200,000 VEHICLES GLOBALLY WITH DIRECT INJECTION
• BY 2010: GM projects one out of every six GM vehicles in North America will be sport a direct injection engine
• SOUTH-BOUND: South's 300 horsepower direct injection 3.6-liter will go into 2008 Cadillac CTS and STS models built in GM's Lansing Grand River plant.
• SOUTH II: The plant will also build a fuel-injected (not direct injected) 275-horsepower high-output V-6 version for GM's new crossovers, the GMC Acadia and Saturn Outlook, built at GM's Lansing-Delta Township plant.

FLINT - Imagine an internal combustion engine that cuts nasty tailpipe emissions, leans itself out in cruise mode - and can still kick gas when it's time to pass.

Too good to be true? Actually, it's being built near you.

Workers at General Motors Flint Engine South have already assembled a few pre-production versions of the next generation of GM's spark ignition direct injection 3.6-liter V-6 engines.

They expect to start full production in April, for installation in the all-new 2008 Cadillac CTS, and the Cadillac STS. Those cars are built in at GM's Lansing Grand River complex.

By the end of 2008, GM plans to build 200,000 direct-injection engines globally. By 2010, direct injection is expected to be in one out of every six vehicles GM builds in North America.

Direct injection sprays fuel directly into the engine cylinder, where it mixes with air. As it vaporizes in the cylinder, the air and fuel are cooled by the process, which allows a higher compression ratio normally found in high-performance engines. (Fuel injection, direct injection's predecessor, squirts fuel into the intake to the cylinders.)

Continue reading at this link...

[Drew Dowdell]

but not the SRX?

[loki]

good, they should be able to "fit this system" on at least 1 different engine/year....say either 2.2 or 2.4 for next year, how 'bout both

[thegriffon]

The 2.2 is already built with direct injection for the European Vectra, Signum (153 hp), Zafira and export Astras (148 hp) for some export markets. GM also builds a Dual-VVT DI version of the 2.2 (182 hp), and a short-stroke 1.9 L version (158 hp) to Alfa Romeo specifications. Alfa also uses a DI version of GM 3.2 L V6 (256 hp).

[ZL-1]

Alfa also uses a DI version of GM 3.2 L V6 (256 hp).

That's why I'll be very disappointed if the export CTS doesn't get a DI 2.8L.

[bcs296]

GM needs to implement this in as many engines as possible, as fast as possible.

[dwightlooi]

This engine looks like it has a beautifully sculpted intake plenum underneath that plastic cover. Looks like a variable resonance intake based on similar principles to that found on the VRIS equipped Mazda K-series V6es (Mazda MX6/Ford Probe) and the Ford Duratec 2.5 DOHC. GM really needs to get rid of the completely stupid cover that they put on it. The 3.6VVT, 2.0 LNF and most of the recent engines have completely moronic dress-up treatments. I mean if you are going to play dress up, do it like the 1998~2005 VW Passat. If you are just going to slap on a black, amorphous piece of plastic that looks like it came off a Rubbermaid trash can, you are better off leaving the engine undressed. This is especially true when you have a nice head and plenum underneath -- which this DI 3.6 HF looks like it has.

This is a disgrace. Whats that black cover hiding? I have seen $5 garbage cans with nicer lids.

Another stupid garbage can lid which doesn't even fit!

This one is just as bad, only its in cheap looking silver plasticinum.

Even Hyundai does a MUCH better job at engine bay dress up!

If you are not going to do it like this, don't bother. Please!

[76ChevyTrucker]

HOw about no cover. How about just let us see the freaking engine. Leave the damn plastic, pain in the ass covers out of the picture. Think of how much in savings GM could have if it DIDN'T produce an engine cover for all the engines it builds? What purpose does it serve other than making yoru engine bay look like an endless sea of plsatic?

[loki]

HOw about no cover. How about just let us see the freaking engine. Leave the damn plastic, pain in the ass covers out of the picture. Think of how much in savings GM could have if it DIDN'T produce an engine cover for all the engines it builds? What purpose does it serve other than making yoru engine bay look like an endless sea of plsatic?

...and the possible muffling it does...

the LS engines don't have a cover, right? they should make engines they are proud of and not have to cover up.

[Drew Dowdell]

...and the possible muffling it does...

the LS engines don't have a cover, right? they should make engines they are proud of and not have to cover up.

sure do....

[dwightlooi]

...and the possible muffling it does...

the LS engines don't have a cover, right? they should make engines they are proud of and not have to cover up.

Even the LS7 has silly, sub-standard dress-up covers. Making it bright red doesn't change the cheapness of it!

[loki]

Even the LS7 has silly, sub-standard dress-up covers. Making it bright red doesn't change the cheapness of it!

these are more like valve cover covers , but i agree.

[Drew Dowdell]

But GM does know how to do it right..... they just choose not to for production.

[Sixty8panther]

The 16's motor is still the best looking motor EVER!

But GM does know how to do it right..... they just choose not to for production.

Yes... those plastic engine covers are lame! Same with the Infiniti's

stupid plastic cover and the STS's cover. Maybe GM will get a clue

and stop wasting money on these stipid things. Hell put the money

into making the greenhouse a hardtop, better looking interiors,

more unique rims etc...

[AAS]

I think the F-bodies might have been the only LS equipped cars without engine covers.

[76ChevyTrucker]

by the way, I've run my 3.8L with and without its cover on the Impala, along with the 2.2 DOHC engine in the wife's cobalt without the cover. I can't tell a difference in engine sound, and I doubt that most people really would if the underhood area was equipped with proper sound insulation.

[dwightlooi]

by the way, I've run my 3.8L with and without its cover on the Impala, along with the 2.2 DOHC engine in the wife's cobalt without the cover. I can't tell a difference in engine sound, and I doubt that most people really would if the underhood area was equipped with proper sound insulation.

That the engine covers have ANY acoustic minimization effect(s) is a complete load of hog wash. I'll tell you why...

There is no acoustic material under those covers. If there have been a Dynamat type aluminum-rubber or fibrous rubber mat underneath you may have a case, but there is none. Moreover, those silly covers do not even form a barrier to sound waves escaping because they do not seal off the sides at all. In short, they have the same effect as if you duct taped a sheet of plastic card or cardboard under the hood or on top of the engine. If you are curious as to how much effect that has, I suggest you try it! Every sound wave that goes up is quietened by the acoustic/thermal mat under the hood (in cars that have it). Hence it makes ZERO sense to put any acoustic material on the engine cover itself anyway! You'll be better served putting additional material on the hood liner! At least that way it doesn't get in the way when you work on the engine and it doesn't look CHEAP!

[Sixty8panther]

Sound Deadening? Probably not but either way it's a LAME excuse for them to exist.

[dwightlooi]

Actually, I don't really mind engine covers per say. The problem is that the ones GM puts on their engines look CHEAPER than $5 garbage can covers and even worse fitting that the one on my Rubbermaid trashcan. Whats more, in many cases they hide relatively good looking intake manifolds. Dress up is supposed to make the engine bay look more upmarket and higher quality. Those sorry ass covers GM puts on their engines do neither!