Camaro SS 2010 on dyno makes 364 whp & 371 rwtq !! Vid inside

[Italianwhiplash]

actually heres the link

[SS 376]

Originally Posted by Italianwhiplash

actually heres the link

Interesting. What does this say about the other SRT8s that have dynoed 360-380 whp stock? So, what should a stock SRT8 putting down 420 whp run in the 1/4 mile?

[CynAgain]

Ok, I don't know about anybody else but I could listen to dynos all day long! There is nothing better sounding than a high rev'ing V8 pumping out some ponies! Right about the :22 second mark on that hemi is the sweet spot for me.

I'll just loop it for a while.

[THE EVIL TW1N]

Originally Posted by Can-Am

Interesting. What does this say about the other SRT8s that have dynoed 360-380 whp stock? So, what should a stock SRT8 putting down 420 whp run in the 1/4 mile?

that car should have no problem trapping 112-114 if it puts down 420 rwhp. I have never seen a 100% stock SRT8 trap anywhere near that. sounds like a simple case of overly optimistic dyno.

[radz28]

Originally Posted by Jamestwilliams

It's possible the Corvettes drivetrain is more efficient as the Corvette is a lighter car (ie it's drive train components don't need to be as heavy).

Yup. Unless I'm mistaken, 'Vette tires are about something like 26-inches tall while SS tires are about 28-inches. This might account for a slightly lower chassis dyno. That might be the difference some of us are trying to find, given the 426 FWHP.

I don't know that I completely agree with the assessment that gearing has no effect on power, however. I'll admit that I'm a novice, however. Regardless, saying numerically higher gear ratios are less efficient than numerically lower ratios is saying they show less power. They'll offer more leverage off the line but it's been my understanding through lots of reading that higher ratios result in lower chassis dyno' numbers. The same goes for dyno'ing in certain gears (transmission-wise). 4L60s and T56s were usually dyno'd in 3rd and 4th gears, respectively, because they were 1:1. If you were to downshift each gearbox into the next lower gear, you would get even less power because of the gear multiplication. I do know that gear multiplication costs efficiency and power however and anytime power goes through gears, power is lost. I don't, however, have equations to support or justify this - only my memory; I'd have to look...

Originally Posted by Can-Am

Interesting. What does this say about the other SRT8s that have dynoed 360-380 whp stock? So, what should a stock SRT8 putting down 420 whp run in the 1/4 mile?

Originally Posted by THE EVIL TW1N

that car should have no problem trapping 112-114 if it puts down 420 rwhp. I have never seen a 100% stock SRT8 trap anywhere near that. sounds like a simple case of overly optimistic dyno.

I've seen 420 RWHP 3600 lb. cars run 117-119 traps in the 1320'. I haven't read all the SRT8 reviews but haven't seen numbers around what 'Evil' said either. Correction factors can be a benchracer's friend though - I know that much.

[DarrenJ]

Mustangers with mods wanting to drag race a stock 2010 Camaro in 5...4...3...2....1.....

[matt55]

Originally Posted by THE EVIL TW1N

that car should have no problem trapping 112-114 if it puts down 420 rwhp. I have never seen a 100% stock SRT8 trap anywhere near that. sounds like a simple case of overly optimistic dyno.

+1
I would like to see the correction factor on that run looks like they have it set up for "crank HP" (C.F. 1.15) .

[Italianwhiplash]

there is another video where my car runs 410. Just look on their video's should be under lx day.

[Italianwhiplash]

Well, Every car is built different don't get all defensive just because a challenger ran 420 to the rear. Mine ran 410 stock. Every hemi is different' I believe back in the this convo someone commented the same factor.
I'll try and get dyno papers for car when i had it on the dyno. But I'd be more then happy to post them. I can't throw the car on the dyno anymore, I sent it out last week to upgrade it to a stage 2. Won't have it back till end of April beginning of may

[radz28]

I don't think anyone (well - at least me) is getting defensive as much as saying that it's a fact dyno's are for tuning. I'm wondering what the trap speed is for these cars still. When I see the numbers I'll quietly accept the fact.

JMHO.

[THE EVIL TW1N]

Originally Posted by Italianwhiplash

Well, Every car is built different don't get all defensive just because a challenger ran 420 to the rear. Mine ran 410 stock. Every hemi is different' I believe back in the this convo someone commented the same factor.
I'll try and get dyno papers for car when i had it on the dyno. But I'd be more then happy to post them. I can't throw the car on the dyno anymore, I sent it out last week to upgrade it to a stage 2. Won't have it back till end of April beginning of may

That video is near worthless without a screen shot.

Either way, it looks as if that were a load based dyno, which the numbers are much easier to fudge and don't compare directly with what people typically dyno with (dynojet). I do believe that screen showed you 420 rwhp, but it's not a real 420 rwhp that you would see on a dynojet. Correction factors can be set to anything anyone pleases, and optimistic dyno's help business.


Although worse as an actual tuning tool, you should try a dynojet since they are much more consistant when trying to compare on the net.

[THE EVIL TW1N]

Originally Posted by radz282003

I don't think anyone (well - at least me) is getting defensive as much as saying that it's a fact dyno's are for tuning. I'm wondering what the trap speed is for these cars still. When I see the numbers I'll quietly accept the fact.

JMHO.

+1

If that car traps 112-114 (and that's a conservative estimate, should be closer to 114-116 in the winter/cold spring), then I'll believe that 420 rwhp. I've seen pretty much full bolt-on/tuned SRT8's (chargers) put down 420 rwhp.

[DeathChill]

Yes, it's pretty obvious that a stock SRT8 (or Camaro) will not be putting 420 to the rear wheels.

[Italianwhiplash]

Well all I can say is that i've run my charger on that dyno and a few others and that dyno that the car is on is consistent.