yeah but the gearing is a bit weaker

the Z's 5th gear ends at roughly 148mph which is roughly where the C6's 4th gear ends (152mph)

so if you add up the first 4 gear ratios of the C6, multiply by the final drive and divide by 4 gears you get 6.387

if you do the same with the Z and divide by 5 gears you get 7.083

so the Z's gearing up to roughly 150mph is 10.9% stronger - is that 10.9% advantage worth the extra shift? IMO yes it is at higher speeds

it gets trickier when trying to specifically calculate 40-140mph, but it can be done. I still think you'll be seeing roughly a 10-12% stronger gearing for the Z though

The C6 won't hit 195mph. The Z06 will hit 198mph though, maybe that's what you're thinking of.

Besides, the race isn't going to 186mph (C6's top speed)

 

So do you think the race will end at 150mph+? I dont think so. Once the Z shift into 5th the vette will be gone the race will be over. thats why He needs to end the race quick before the fifth shift.

 

My bad.

 

i totally disagree

at 5th gear, he'll be going 117mph at 5200rpms with a multiplied gear ratio of 3.537 (3.537 x 1.00)

the vette will be at 5000 rpms in 4th gear which multiplies to be 3.42 (3.42 x 1.00)

so even in 5th gear, the Z will have a 3.4% gearing advantage

then there's the power difference...which on the top end with the TN kit, the Z has the clear advantage

the only advantage the vette will have at 117mph is the .28 drag coeficient vs the Z's .29 or .3 (not sure if he has the aero package) and a little less weight which by 117mph isn't as important

 

this is paper stuff...

doesnt apply well to street racing.

 

i just looked on some websites and it says that the weight of the 06 C6 vette z51 package is 3200lbs? i thought the Z only weighed about 3300lbs? so where are you getting this 400lb diff. from?

 

yeah car engineering factors should have absolutely no effect on racing whatsoever

in that case, I say the giant fuzzy pink bunny will win

+1.
his Z has a tilton that's 30 lbs less
no spare tire/tools, that's 30 lbs less
added the TN kit, that's 80 lbs
test pipes, that's 25 lbs less
exhaust cut out - who knows how much less that is (20 lbs?)
I forget how much the touring model weighs, but it isn't over 3400 lbs

 

Drag is a big factor when going at speed of 90+mph.



3300lb is the stock base model or you might be looking at the track version. touring is around 200lb heavier then the base models. Dont even metion the Z51 package if you are racing from a roll, it dont matter.

 

LOL, sure didnt think u would be offended.

Just b/c on paper someone is suppose to win does NOT mean they will.

I doubt the friend is going to show up w/out doing something to the car, whether it be installing some Bullets, Intake, or something.

Everyone has to earn their win. mis-shifts or tons of other things can go wrong.


PS: just so you dont get made BULLETS are a type of exhuast made by B&B that they rave about.

 

of course it is, but because the race is only going to 140mph, I don't think it'll overcome 50whp and 3.4% stronger gearing from 117mph and up, even if the Z is roughly 175 lbs heavier

keep in mind the C6 has wider diameter tires in the rear - they're not only 19's, but with a 35mm profile, the weight is thrown way out to the edge

 

A cutout actualy adds like 4lb's so on average with these mods he gained 9 lb.

 

oh ok didn't know that about the cutaway

the tilton does more than just trim dead weight though - it's rotational mass which is much more valueable than dead weight, AND it makes shifts quicker

 

yayaya mass off the crank. Look I think it will be close from a roll but forget about from a dig or from a 1/4. Not saying that you will win I dont want to put my foot in my mouth, just want to say it will be close.

 

it would indeed be a much closer race from a dig. I think I'd actually favor the C6 from a dig. It's weight distribution and much wider rear tires (not to mention stickier tires) and a lot more low end torque, mean it will launch sooooo much better than a TN Z with stock tires - and it won't have to shift gears quite so soon before you even get 10% down the 1/4 mile

though of course a good driver makes all the difference when launching

 

First rule of boost club:

If you can't back up such an outrageous claim, don't post that b.s. number. Makes you look like an idiot that you would believe anything your mechanic tells you. I told you the same thing on the other forum. Big brother is watching.

 

what b.s number? Your not talking to me are you?

 

I had a staged race against a C6 Coupe (I asked him at the stop light). The only thing is that I don't know if it was 6spd, auto or paddles?

I have APS TT with 9.5lbs of boost doing 385rwhp on dynodynamics dynometer.....so you can estimate on your own what it would on a dynojet.

Anyways, the race was from a 40mph roll. I decided on 3rd gear because I didn't want to shift immediately out of 2nd. So from a 40 - 80 mph run I pulled away from him just fine....by 80mph I had "about" a 1 car length gap between my rear bumper and his front bumper....could be more or less.....I'm not sure.

 

I assume you are in a track model not a touring.

 

350Track, do you know if the vette was stock, or did it have anything done?

 

so you started that race at 2900 rpms in a gear that's 43% weaker than 2nd gear instead of at 4100rpms in 2nd? Now I understand why the low end torque is so important to guys with turbos, but that's still impressive that you won Just think how much you would have won if you raced in a normal gear