Car Info: 2008 350Z Touring with Nismo Suspension

Wheels: I have a set of Enkei GTC01 18x9+18, 18x10+22.

My question is about tire size. From what I have read, you want to keep the overall diameter about the same. Our stock RE050A's have 25.9" front and 26.7" rear diameter. So I was looking at the Yokohama Advan Sports, 255/40/18 (26" diameter) and 275/40/18 (26.7" diameter). However, from reading the forum it seems as if those sizes are going to be too wide for the vehicle. I would prefer to not do any fender rolling or camber adjustment. Would I have to do that with this setup? The Nismo Suspension is within alignment specs with no camber kit or anything of that sort.

Should I go with a 245/40/18 Yokohama Advan Sport (25.6" overall diameter) and 265/40/18 (26.3" diameter)? I believe that is still within the 3% error range, but is that too much of a difference?

Also, I realize 275 is used all the time with a 10.5" wheel. Is 275 just too wide for a 10" wheel? If so I will definitely go with a 265. The same question can be asked about 255 with a 9.5" vs a 9" wheel.

I would appreciate any feedback or if you need any more info please let me know. Thanks a lot.

 

do you have adjustble camber arms front or rear?

the 245/40 & 265/40 combo should be ok. i think you can fit 255s no problem. (the 0.1" is negligible) its not too wide.. i run a 265/35 on a +18 front, and even with a mild camber setting, i was ok with no rub..

275 for a 10" wheel is typically ok. falls within the range of fitment.
for example. Toyo T1Rs list a 275 from anywhere from 9.0 to 11.0" wide..

 

No, the Nismo suspension doesn't need it.


If your car isn't slammed and doesn't require a camber arm, would the 245/265 combination require any kind of adjustment to fit?

 

255 275 combo is just fine and more than ideal, actually perfect. Depending on your camber setting (rear only) you may need a slight roll. We have a huge camber range for factory specs 1.1 to 2.1 off the top of my head. You probably would need 1.6 or higher, most are actually in the range, especially with your slightly lowered suspension.

ISTAN has a very similer setup, but runs 275/35 front and 275/40 rears with no roll.

 

I appreciate the responses guys. Thanks.