knr13

i have a 02z with a mild cam/cai kinda just a blackwing air filter /kooks/borla/ported TB/ and a good tune well how do you think i would do ? anybody have any experience going up Against one ??

thanks

ctusser

You'd need around 450-460whp to hang with a stock one. But a lot of them ain't stock. With just bolt ons they are running near 500whp.

With your mods and equally matched drivers you would get pulled pretty good.

knr13

what about 08 ls3 ??

nullpointer

Def should pull one

95rtturbo

Agree with ctusser, you would get pulled pretty good by a stock C6 Z with your mods. You should pull a stock LS3 fairly easily, though (with your mods). Of course, if the LS3 had similar mods as you, you would get pulled by the LS3 C6.

skyavonee

I thought C6Z's are putting down like 440whp stock. Since the C5Z is lighter and has tighter gearing, shouldn't a similarly powered one beat a C6Z in a roll race?

LSX_NUT

Power throughout the curve my friend. Peak horsepower doesn't mean ****. Its more about average power throughout the entire power curve. Those LS7 motors make real good torque down low.

IMO a stock C6Z will still slightly pull a 450whp LS6 C5Z. Given that the drivers are equal anyways.

The best way for a C5Z to run with a C6Z is a blower.

skyavonee

I completely understand what you're saying. But whereas low-end torque can make a big difference on a road course, it really doesn't help as much in a straight line roll race. A well thought-out H/C C5Z making 450 whp will have an impressive torque curve in the 5k-7k range... what it's doing down below 4k rpm is irrelevant. That's my thinking, at least.


The real question is this: Has anyone actually run side-by-side with a driver they knew in a C6Z? What was the result, and what were your respective power levels?

LSX_NUT

I'd like to see what a strong H/C/I C5Z dyno overlayed with a stock c6Z dyno to look at the difference under the curve. It would be cool to see.

Most roll races are from 4500rpm to redline right? So that is where we would really need to start comparing.

skyavonee

skyavonee

Well, I couldn't help myself...

Here's a comparison between Toque's H/C C5Z dyno (before he added the FAST92/92) and the first two stock C6Z dynos I came across. [I didn't ask for Toque's permission, but I'm guessing he doesn't mind ]

I only sampled them every 500 rpm, but it gives a reasonable picture of the power curves.



original dyno curves can be found here:
http://forums.corvetteforum.com/1579731402-post34.html
http://forums.corvetteforum.com/1583876043-post2.html
http://forums.corvetteforum.com/1583261861-post1.html

GARY2004Z06

Lots of good info posted here. In a roll race, you would need a fairly stout C5Z to keep up with the stock C6Z. On a well prepped drag strip, the race should be close provided that C5Z has an aftermarket clutch and gears. (This assumes equal driving ability.)
Just looked back at some of the Bolt-On C5Z incremental times vs. the C6Z on DRs.
Bolt-On C5Z
60'.........330'........1/8.........MPH...................1000'... .....1/4.......MPH
1.516.....4.530......7.019......98.59... ..............9.154......10.953....126.3 2
1.465.....4.475......6.963......98.73... ..............9.094......10.890....125.0 6
C6Z on DRs
1.664.....4.637......7.071.....101.33... .............9.146.......10.912....127.2 3
1.690.....4.650......7.090.....101.42... .............9.163.......10.927....127.4 7
You can see that the C5Z gets the C6Z out of the hole but after the 60', the broad HP curve of the C6Z takes over. A mild cam will help the C5Z but it would still need to get off the line much better than a stock C6Z.

knr13

i found this video that shows a good example of the power curve but pay attention to the HP and torque of these two
long video but a good one

ctusser

Most C6Z dynojet numbers are 450+ whp stock. They run High tens stock with a tire and decent air, they are fast.

Below are a couple stock baseline runs compared to modded.

Bonnetts02Vette

On my 08 Z I had a Halltech MF103 Super Bee and tune and it made 493rwhp. it was an absolute freight train. I miss that thing but man am I glad to be back in a Z, let alone the Corvette world.

danieloneil01

The guy in the C5Z can't shift to save his life from a dig. The rev limiter isn't something you should try to hit ever but he does it for every gear change.

lxconv331

: My wife can shift my car better than the guy in the silver Z!! Thats 2 different drivers right their,,,,