2013 GT500 - 9.95 @ 142mph

[Steve]

For comparisons sake :

http://www.youtube.com/watch?feature=player_embedded&v=8OCkzWzBkqg

Mods including a big stall/auto - "The ZL1′s mods performed by Redline Motorsports include a larger ATI drive pulley and a smaller LPE supercharger pulley to increase boost as well as a ported blower snout. The stock LSA camshaft which has 198/216-degrees of duration and .492/.480-inches of lift was tossed in favor of a custom camshaft ground by Comp Cams which has 231/248 degrees of duration @ 50. The custom cam was mated to 7.400-inch long pushrods and Redline’s double valvesprings with titanium retainers. The stock exhaust manifolds were replaced with American Racing’s long tube headers with 1 7/8-inch primaries. Behind the headers, Redline installed an X-pipe and high-flow cats while keeping the balance of the exhaust stock. The ZL1 was also treated to a cold air intake, larger heat exchanger, a set of Injector Dynamics 98 lb/hr (at 68psi) injectors and NGK TR6 spark plugs. The car still maintains its stock 1.9 L blower, stock block and stock heads. To get the ZL1 out of the hole, it was fitted with a high stall torque converter and Mickey Thompson drag radials."

From here: Hot News!! New 2012 Camaro ZL1 1/4 mile record set by Redline Motorsports – Road Test TV | RoadTest TV

[91CoupeMike]

Not bad. GM put a baby blower and baby camshaft in that car, so no wonder the power levels are so much lower.

That Camaro sounded good though.

[STROKD]

If the Camaro was about 1k lbs less, I'd probably consider one and just put up with the ugly.

The Shelby could be lighter too but at least it's under 4k.

[BlackGT]

The Shelby could be lighter too but at least it's under 4k.

And it looks 10x better than the slowmaro!

[quikag]

OK and the ZL1 has 6.2L (379-384CI) vs. 5.8L (354-361CI), we could be here all day old timer...

The Cobra has 4 valve heads and a 800rpm higher redline.

I do wonder what the 6.2 would do with a 2.3 TVS blower? Oh wait, GM already knows. It's 638 SAE rated horsepower at 10.5psi on the ZR1.

Does anyone think the LS9 couldn't crank out more than 662 SAE rated horsepower at 15psi like the GT500 is running? Me thinks an extra 4.5 psi would generate more than 24 horsepower, quite a bit more. So, that really begs the question on why the GT500 doesn't make more than 662 with it's 7,000rpm redline and 4 valve heads, etc. Does, the extra .4 of displacement make that big of a difference even with a pushrod 16 valve set-up?

[DON SVO]

The Cobra has 4 valve heads and a 800rpm higher redline.

I do wonder what the 6.2 would do with a 2.3 TVS blower? Oh wait, GM already knows. It's 638 SAE rated horsepower at 10.5psi on the ZR1.

Does anyone think the LS9 couldn't crank out more than 662 SAE rated horsepower at 15psi like the GT500 is running? Me thinks an extra 4.5 psi would generate more than 24 horsepower, quite a bit more. So, that really begs the question on why the GT500 doesn't make more than 662 with it's 7,000rpm redline and 4 valve heads, etc. Does, the extra .4 of displacement make that big of a difference even with a pushrod 16 valve set-up?

You sure do like making blatantly ignorant comments.

[quikag]

You sure do like making blatantly ignorant comments.

Please elaborate on my ignorant comments. Please show me where ANYTHING I said is not accurate.

I look forward to reading your enlightened word, oh great one.

[Rlhay2]

So, that really begs the question on why the GT500 doesn't make more than 662 with it's 7,000rpm redline and 4 valve heads, etc.

Neither car was a max effort production. Compromises exist in both.
In this case, Ford's compromised bar is just higher than Chevy's.

Does, the extra .4 of displacement make that big of a difference even with a pushrod 16 valve set-up?

According to the laws of thermodynamics, it does. It's not as critical in an FI application, but the effect is still mathematically significant.

[DON SVO]

Please elaborate on my ignorant comments. Please show me where ANYTHING I said is not accurate.

I look forward to reading your enlightened word, oh great one.

LOL I'll just let someone else do it for me

Neither car was a max effort production. Compromises exist in both.
In this case, Ford's compromised bar is just higher than Chevy's.



According to the laws of thermodynamics, it does. It's not as critical in an FI application, but the effect is still mathematically significant.

[White_lightning]

Neither car was a max effort production. Compromises exist in both.
In this case, Ford's compromised bar is just higher than Chevy's.



According to the laws of thermodynamics, it does. It's not as critical in an FI application, but the effect is still mathematically significant.

sup andrew.. whats shakin?

[Rlhay2]

sup andrew.. whats shakin?

Not quite. I only took a few years of thermo to get my degree.

Andrew considers thermodynamics, "some light reading before bed".

[White_lightning]

Not quite. I only took a few years of thermo to get my degree.

Andrew considers thermodynamics, "some light reading before bed".

drew:" i was bored last night.. so i read the internet.... all of it... and then spent this morning firing out emails correcting everyone.. this one idiot... steven hawkings or something had his theory of worm holes and space time all wrong..."

[Rick Modena]

How is our old friend Drew doing...

[91CoupeMike]

The Cobra has 4 valve heads and a 800rpm higher redline.

I do wonder what the 6.2 would do with a 2.3 TVS blower? Oh wait, GM already knows. It's 638 SAE rated horsepower at 10.5psi on the ZR1.

Does anyone think the LS9 couldn't crank out more than 662 SAE rated horsepower at 15psi like the GT500 is running? Me thinks an extra 4.5 psi would generate more than 24 horsepower, quite a bit more. So, that really begs the question on why the GT500 doesn't make more than 662 with it's 7,000rpm redline and 4 valve heads, etc. Does, the extra .4 of displacement make that big of a difference even with a pushrod 16 valve set-up?

How much more power does a 6.0ls make over a 5.7ls? Or a 302 vs 331?

The ls9 is a bad bitch, but so is fords new 5.8.

If-if-if-if ford used a modified coyote head on thier current 6.2l truck engine and put a blower on it, how much power do you think it would make? I think a lot.

Not that this holds any weight, but I was reading an article in a truck magazine, it was the raptor engine (6.2l) vs the silverado (6.2l). Bone stock the ford made more power and torque by a conserible amount and it made the power lower in the rpm range.. So they put the same supercharger kit (centrifugal) on each truck, same boost ect.. And fords made a retarded amount more power them the GM, something like 50+ hp and Torque.. And that's ford SOHC, I wonder what It would do with DOHC VVT?

GM 6.2l is a nasty motor, OCII proved that to me in the "FRIDGE" for headers and a tune + w/e else it was moving for a big heavy pick up.

[DON SVO]

How much more power does a 6.0ls make over a 5.7ls? Or a 302 vs 331?

The ls9 is a bad bitch, but so is fords new 5.8.

You do know this isn't a new 5.8L, right?