[willsctsv]

Has anyone put 275's in the rear on stock rims?
Are there any rubbing issues over bumps? Fenders??
If they fit and work, any noticable increase in traction. From a launch?
One more question, With 275's being wider on the stock wheel is it possible to flex the tire off the rim with really aggressive driving?:hmm:

 

[ace996]

Will,
From what I've read here, 275s are fine on the stock rim. With several of my autox friends running 275s on their Evos and STis, on 8 inch rims, you should be fine running them on an 8.5 rim.

There will be a slight increase in sidewall flex on turns, but nothing that most would even notice. To combat this, try to find a tire with a stiff sidewall and/or run slightly higher pressures.

I highly doubt that one would be able to flex the tire off the rim, you're not going too far out of spec with the 275/40/18. The only problem I'd see is if you were going to a 275/35, not much room on the sidewall...I'd surmise that an installer would have a difficult time trying.
Good luck,
ace

 

[evil 8]

I'm rollin 275's on the back with no ill effects. The BFG KD's are much stickier than the F1's. I really have to hammer this thing to get 150 foot burnouts with the KD's. Between me and Dado, the first set only lasted about 150 miles. 135 miles of normal driving and 15 miles of pandemonium.
These don't rub anywhere in the back, even after going apeshit on the V. This same tire on the front will rub the inner fender liner on opposite lock with a large weight shift.

 

[AmesCTS-V]

Yeah 275's in back on the stock rim work great for me and they look good.
http://www.blackcts-v.com/Default.aspx?album=CTSV/GSD3
245's in front on left, 275's in back on right

 

[willsctsv]

Evil 8 and Ames, I want to know, can you feel more traction with the 275's when doing a 1-2 shift? With these cooler temps here in the North east, my tires are not grabbing too well and I'm skipping alot in 2nd and even an up shift to 3rd. I figure the 275's may give me a little more traction.
Your experience???

 

[AmesCTS-V]

Summer tires are usually made of a compound such that they don't do well in the cold. I'm actually only a few weeks away from putting my winter tires on, which are stock sized all around so if I have to drive in snow they can cut down through it.

I did notice the 275 do better in the grip dept. I'd recommend it. Getting away from the run-flats improves the ride also.

 

[HDMLNIUM]

I have some 275/35 dragradials on the stock wheels and I do drive them on the street from time to time...:yup: I think they are fine and plan to go to some 275/40's for my street rears next..
Bill

275/35's going down the highway...