Wheel/tire combo

14indy · #1 10-21-2009, 08:08 AM

I would like to have my two spare stock 18" wheels widened. I do not want to alter anything in the wheel housing area. How much should I have these stock 08 wheels widened and by whom? Also, I want to stick with Mickey Thompson street/drag radials. What is the widest tire that will fit under the unaltered wheel housing? My GT500 has not been lowered.

WA 2 FST · #2 10-21-2009, 08:13 AM

I think Jcthorne has 335 tires on his, and I think he has not done any fenderwell mods, but I am not sure. If you search his username, you can probably find his threads about this.

I run 305s on a 10.5" wide wheel with no mods to the fenderwells. I could probably run a little wider.

rlhay2 · #3 10-21-2009, 09:12 AM

Using the stock wheels 10.5" wide is as wide as you want to go.

If aftermarket you can use an 11" wheel with the proper offset.

VNMOUS1 · #4 10-21-2009, 09:08 PM

Quote:

Originally Posted by rlhay2

Using the stock wheels 10.5" wide is as wide as you want to go.

If aftermarket you can use an 11" wheel with the proper offset.

+1 and you can use the 345/35/18 M/T DR. Keep in mind they're great for punching it from stoplight to stoplight, but not so great on the track. A very short sidewall is simply too stiff, thus minimizing flex (and unfortunately hook).

If you're going to race your car, you can go significantly narrower and actually have better traction.

bj