Whisper

What style? What do they look like?

Funn944

Too big a tire + too much power = broken rear drive train parts. learn how to use the power available, and don't push the tranny so hard.

CPR

Is he not switching to a Turbo trans-axle? If so I wouldn't worry about it....if not, then I would not even bother with a swap until I had the T-Trans.

V2Rocket

this is true, but the turbo trans has low enough gearing that it should be fine even with the occasional launch. obviously after a bunch repeatedly it will wear but then you can only hope you break an axle or something before you shred your trans.

CPR

Well I keep hearing about these trannies breaking.....but I'll be damned if I can break one.

3 951's since 1993 and haven't torn one up yet. The Europeans also ask the same question, but don't tear theirs up....weird.

V2Rocket

i was teaching my friend how to drive stick yesterday and she was kinda rough with it lol. didnt seem to understand that she needs to hit the clutch before she thinks about changing gears...X_X

just for fun i showed her how to do a 5000RPM clutch drop and burnout, and left a nice number 11 in the parking lot.

i have done stuff like this many many times (not teaching people to drive, but otherwise stupid things) and the original tranny has yet to fail on me. however i have noticed in the last week or so it is incredibly difficult sometimes to get the car to go into reverse. no idea why that is.

oh well, i have a spare NA trans and a turbo trans ready to go just in case i finally manage to break it.

CPR

+1
In 93 I had an 89Turbo and taught my GF @ the time how to drive a stick in it...ughhh. That plus the fact that I did burnouts/doughnuts/etc....to no end (bought @ 11k miles, sold @ 87k miles) and the only failure was one CV joint.

That car was relatively stock, the others have not been and still no issues...no watch the SOB implode tomorrow

BTW...leave nice number 33's instead of 11's...a bit harder but looks awesome

Whisper

Precisely. I already have a turbo trans with LSD ready to go in with the rest.

With this setup, the weakest link should be the CV joints. And if I blow those, big deal, they're cheap and easy to replace.

Besides, this is going to be an extravagant street monster, not a track car.

CPR

Exactly. That is the only piece I have ever had a problem with (CV) and it is $100 fix.

And I like the sound of "Street Monster"

Whisper

Well, there's really nothing else you can call a car that weighs about 2800 lbs, and puts out about 430 hp.

430/2800 = 0.1535

997 Turbo: 480hp/3,494lbs = 0.1373
Carrera GT: 610hp/3,100lbs = 0.1967

Ferrari 599 GTB Fiorano: 0.166
Mercedes-Benz SLR McLaren: 0.164
Lamborghini Murcielago: 0.172

V2Rocket

you did that backwards lol.

its weight/power..
your car = 6.51
997TT = 7.28
CGT = 5.08
GTB = 6.04

regardless the car will be stupidly blistering fast, 0-60 in the low 4s..

Whisper

Those are power/weight ratios. These are used more widely, e.g. for planes, other types of vehicles, etc.

You only really see weight/power ratios with cars.

Regardless, you can see why I'd be concerned about breaking loose. Thing is, there seem to be lots of options for 17x9s, but not a lot 17x10 styles to choose from.

Am I going to need to spring for custom?

V2Rocket

no. turbo gearing and a good 9" rear tire maybe 275 should be plenty. keep in mind that the corvette that your engine will be coming out of has 285's in the back from the factory. and if you want the 10" rear wheel go for an 18" rim like a turbo twist or MY02.