18bora

iTrader: (8)

For street and light track days. is there any advantage to going up to 245's or even 255's on the stock rim.

I hear that the 245's and 255's are too tall and may effect the balnce of the car.

TIA

Rich EVO MR SE

The first number is the width, not the height. Going with a 255 vs. the stock 235, will give you more grip. As for the side wall, go with a 40 or a 45.

18bora

iTrader: (8)

I know the first number is the width, but I hear 255/45 or even 40 is too tall (too much side wall) and the tire may roll of the rim around hard cornering

Richard EVO

255/40/17 fits fine on stock 17 x 8 wheels. I have been running them for years on the track with no problems. 45s won't fit.

Rich EVO MR SE

I'm not sure but If you go less than a 40 height your wheels might be grinding the pavement on hard cornering. I was taking REAL hard turns on the stock Advans which are 235/45/17 w/ no problems at all. They lasted me 12K miles, now I run the Falken RT-615 255/40/17.

Rich EVO MR SE

Yup. A 235/45/17 fits fine but a 255/45/17 will not. 255/40/17

Smike

iTrader: (8)

Been covered:
255/40/17s


235/35s v. 255/40

letMeIn

iTrader: (12)

when you increase width you have to lower the hight. so I dont' think you will be able to fit 45x255 tire, even if you do, you will have rubbing problems. Go with 255x40x17

spdracerut

iTrader: (2)

255/45 is too tall. 255/40 is close to 235/45 in height and is what you should go with. The math is really quite simple to calculate tire diameter, you can look up the equation on tirerack.com or google.

Jeff_Jeske

iTrader: (66)

I would get a set of 235/45/17 Toyo RA1s. They have the crisp feel of the advan but also provide additional grip. That being said, sometimes 255/40/17 are cheaper. If so I would get the wider tire. It will loosen up that crisp feel you are used to but will provide more grip in the corners. Personally I like the sharp turn in and response of the narrower tire.