kirk tarrant

i picked up a set of ccw t1 wheels for my 02 c5Z
They appear to be 17x 10'' and 17x11...

i have been thinking about running a 315/35/17 on all 4 corners.

Has any one run this combo?

69autoXr

Not sure if the T1 guys used 315's up front or not, other possibilities might have been 275 or 295. Some guys that I know that ran T1 way back used C4 Grand Sport wheels, which were of course 9.5" fronts, and they ran 275's and then later on 295's (they weren't running T1 by that time but were still using the same wheel setup).

Is this for street or track use?

kirk tarrant

auto x/street

edram454

I did on my c4 zr1 a few months ago. the 315's in the front make the car run very rough. great around corners but hard on your power steering and your butt. also any irregularities on the road and your car starts darting around. did not like it and switched back.

69autoXr

There aren't many really good options for competitive street tires in 315-17 anymore, most of the hot tires only go up to about a 255-17 then they jump to 18" sizes. Unless you're going to use a DOT R-comp tire, you may struggle to find a competitive tire.

Tim Dorsch

YES !!
Phoenix built me a C5Z T1 car with 17" CCW's several years ago and recommended 315 square. Worked great.

I now run a different c5Z with 315 x 18 square. makes tire management so much easier.....

JETZ

Post up some pics from the sides to show how much they stick out

frank

69autoXr

Which ones, the 17's or 18's? Of course it is highly dependent on the wheel offset as to how far they stick out.

JETZ

Both. I'm interested how far they stuck out, especially on the front.
This was a track car only, or you drove it like that on the street?

frank

Tim Dorsch

The 315's on the CCW 17's did stick out a bit. (T 1 car) .....would not want that on a street car !

My current car with speed line 18 x 10.5 on the front with 315's are
pretty reasonable.
if you pm me a # I can text pics.

69autoXr

For reference, here is an 18x10.5 ET58 replica rear Z06 wheel with a 315/30 on the front of my Z06.