Well, after seeing LBSZ28BLOWN's car I REALLY want 315's in the back with a 17x11 ZR1 wheel. Not sure if I want to go through all the trouble with the inner fender and rolling the outer lip. So my question is what about a 17x10 instead? I would still have to use a spacer obviously, but I should still be able to fit a 295 in the back, right? Will I have to modify anything to make that work? And as far as the sizes go should I stick to a 295/35/17 rear and a 275/40/17 front? Thanks for any input, Paul Moore

 

why do you want 11" 315+ in the rear? do you have over 400 rwhp or auto-x the car?

why would you need to use a spacer...? you would need an adapter to run that type of wheel. you could pick up a custom wheel that wide though and not need adapters. would look 100% better with less hassles.

with the right backspacing a 295 fits easily in the rear with the lowest of suspensions. modification depends on the rims. if you had custom wheels made with the right offset/backspacing no you could get them right where you want without any quarter work. you would still need to do some inner fender work but nothing a hammer and 5 min couldn't fix easily.

 

Well, the motor that I have built for this car is EXPECTED to have 475HP on the motor. Now I didn't dyno it, heck it's not even running yet but it will be soon. I don't know what that will translate to in RWHP but it's a good guess to say in the ballpark of 390 at the wheels. Anyway, I drive cars very hard. I am a suspension *****, just take a look at my sunbird. I take sharp turns at 60+MPH regularly but my suspension is setup for that. That car hos no power whatsoever so I don't have to worry about getting squirrely. WIth 400+ HP on tap though it is a different story all together.

 

wait until the car proves you need that type of tire....if the motor ends up lower at 3-350 rwhp you'll be sorry you have such wide tires. 295 is perfect.

 

Well, that is what I figured on after the car is up and running. I get to drive all types of cars everyday(I work as a technician at a Lexus dealership) so Porsche, Mercedes, and Vettes are a common occurance. I did drive a Z06 Vette the other day, the one that has 405HP from the factory and it was running a 295 tire in the rear. I like the way the car handled, and with the 6 speed ZF tranny it obliterated the rear tires at will with traction control turned off of course. Normall I would say to go 275 all the way around but I dont' want to be spinning tire every time I take off at a stoplight(although it would be kinda cool....)

 

Note to self: Dont take my car to that Lexus dealership.

(Not that I'd take it to any Lexus dealership anyway)

 

I didn't 'beat' the car, I just wanted to test it out to see what my car might feel like when it's all done. By the way, sideways in 2nd gear, and grabbing 3rd was awesome!

 

I would have done the same thing!

 

true, however remember that probably isn't rear wheel horsepower if it's factory...