Drew Dowdell

As a mod, I can't ignore anyone unfortunately.

Buell is dead.

No, his points aren't valid. There are no benefits to having a pushrod 4-cylinder over a OHC 4-cylinder, there are benefits to having a pushrod V8 over an OHC V8. Thus his point, which he repeats often, is invalid. GM's V6 pushrods aren't inadaquate because they are pushrods, they are inadequate because they've had relatively zero development dollars thrown at them compared to the HF series. SMK repeatedly fails to understand that a DOHC and a pushrod of equal displacement will not have equal external dimensions. SMK fails to understand that you will not be able to fit a 6.3 litre DOHC V8 into the space that a 6.3 litre pushrod just barely fits in. Yet he continues to state this as true. The CTS-V and Corvette do use a pushrod to smack around vehicles way out of their price class . This has been very publicly demonstrated. Bringing the Koenigsegg into the discussion is just trolling. The Koenigsegg is over $500k. GM could outfit a Corvette with a Pratt & Whitney and still have it cost less. If the factory 638hp of the ZR-1 isn't fast enough for you, Lingenfelter will happily sell you an upgrade to about 680hp for roughly $3k. So no.. it's not just differences of opinion. He's trolling by repeatedly posting information he knows to be false. Everyone here is entitled to their own opinion.... however you're not entitled to your own facts.

I've had my eye on the Yamaha Roadliner for a while.

Mmmmmmm Regal 2.0t + GM Performance Turbo =

Just so everyone is aware. I disabled all of the statistics on the Portal front page. IPB Support thinks that was the reason for the recent software lockups.

The board was down overnight.

For those in this thread who wish to learn something, there was already anexcellent discussion between two people who know a thing or two about engines. Do yourselves a favor and read.

Listen up SMK. I am completely, utterly serious about this. You will be banned from these threads if you continue. Understand these following statements before you post again. 1. There is no packaging advantage for pushrod inline engines. That is why DOHC is better on a 4 cylinder. 2. There has been an utter lack of development on pushrod V6 engines. The trait of having pushrods is not the cause of their "inferiority" 3. There is a massive packaging advantage that can be had with a pushrod V8. The differences in external dimensions are gigantic. 4. The Corvette, like the CTS-V, can smack around cars twice it's price and do it with a pushrod. 5. The Koenigsegg is over 5 times the price of a ZR-1. I find no trouble jumping to the conclusion that GM would have no problem coaxing 1,000 HP out of the LS series if they could charge even half that.

I like the name Catalina for it. That black one isn't bad, but it looks like it's based on the stubby '86-'87 Riv or Toronado instead of the '79-'85 Anyone else going to enter or is MDM going to win the 1966 Toronado by default? Remember, you get at least a C&G related prize just for entering.

PUSHROD ENGINES ARE NOT LIMITED TO 2 VALVES PER CYLINDER can we all agree on that at least?

more money = better

Sounds like you should list it on Ebay instead Camino. Let the price get bid up higher.

GTX, I think you need to stop trolling about the Volt until such time as any new details are released.

How much does the AMG engine cost? How much of a horsepower bump would the LS series get if they added direct injection? How much of a performance bump would the LS series get if they added VVT?

a higher redline does not mean more power. Many/Most engines' power tapers off before redline. Redline and Max power are almost never at the same RPM. I"m sure Buick does use shock absorbing motor mounts also... but nothing nearly as high tech as the active motor mounts Honda uses in some of it's V6es.

What are the exterior physical dimensions of each engine. The LT5 just barely fit in the 'Vette engine bay. What displacement could the pushrod be increased to and still be physically smaller than the DOHC engine?

They already have VVT for the pushrods. Who cares about higher redline? that's what gears are for. Did you just imply that the competitors to the Corvette aren't designed right? Much like a SOHC can still have 4 valves per cylinder, a single pushrod can actuate more than one valve. Perceived refinement is hogwash.... particularly in this segment.

So show us the business case for DOHC in the 'Vette. What does it buy you that the current Vette cannot do now? Why do you have the assumption that VVT and more valves cannot be added to the engine now?

V8 to V8 there SMK, a DOHC V8 has more moving parts and more internal friction than a pushrod

Who said pushrods could only have 2 valves? If you're going to go on about valves and good breathing, why not a 5-valve setup like VW has been using since 2000? Why are Toyota, Honda (which is mostly SOHC btw), BMW, and Nissan so far behind on this?

I don't understand how an engine that weighs more yet has less displacement, has more internal friction, poor packaging options, and a higher center of gravity would be better for performance.... but that's just me....... and GM apparently. I don't understand how an engine that weighs more yet has less displacement, has more internal friction, poor packaging options, and a higher center of gravity would be better for performance.... but that's just me....... and GM apparently.

It wasn't just sound. You couldn't even feel it.

Google will give you free email hosting with your own domain name. For example the mods and editors here can use http://mail.cheersandgears.com to get to their @CheersandGears.com email You can host the website with google as well, but you are limited to their templates and format. You can't just upload raw HTML. So, my recommendation would be to set your MX records to Google and get a free webhost like FreeZooka or 000webhost.com for the web page part.

You've been told time and time again. DOHC is actually older than pushrod. You've also been told time and time again that the reason pushrods are gone from 4-cylinders (or any inline arrangement) is because there are zero packaging advantages. The V6 pushrods are dying because they've gotten zero investment dollars because even the best DOHC beating pushrod would never satisfy the import humpers like you. You'd find some assinine reason to hate it like "doesn't rev to 8,000 rpm". You've already been shown that blindly choosing a DOHC engine over a pushrod engine will have you looking at Chevy or Cadillac taillights growing smaller in the distance. 99% of non-gearheads don't have a CLUE what the acronym DOHC even stands for let alone means. They only like it "better" because Consumer Reports told them to. The Buick Lucerne I rented had the 3.9 liter pushrod. I drove for 20 miles in 3rd gear at 75mph and the only reason I eventually noticed is because the instant MPG reading seemed a bit low. There is no audible or even visceral difference in the Lucerne at 75mph in 4 or 75mph in 3. 66Stang can back me up on this one, I took him out for a ride in it.