Avi Das

time to get new tires for the GTR. want to switch to max performance summers, specifically MP4S. unfortunately they dont make them at 325 or 335. they do have 345R20s. anyone go up to 345 for the rear in the GTR. any problem
with fitment or rubbing? completely stock with forged wheels. thanks.

jn66

In for answers.

MG1422

The cup 2 ZP which is 335/30/20 has a section width of 342mm and that comes stock in europe so that fits. the 345 PS4s has a section width of 350mm.

I've ran tires that have a section width of 347mm on the rear but these where on 19s and there was no rubbing - just for reference.

sweetazzj186

Unless I'm missing something, I show a Pilot Sport 4S in 325/25/20 on tire rack.

MG1422

you are right!

fronts could be 275/30/19

sweetazzj186

Yes, you could also go 295/30/19.

MG1422

I agree. I've ran that size before on my stock wheel in front.

Avi Das

then the effective diameter is quite a bit different correct? with aspect ratio of 25 vs 30? I was thinking about getting super sports with 235/30/20 in the back. too bad they dont make MP4S in that size

sweetazzj186

The MP4S tire revs per mile are as follows. Going with the 295 front and 325 rear will be your best option. 788/799 is 98.6% ratio, which is almost perfect. The diameter difference is very minimal, especially for a rwd car.

275/30/19: 814
295/30/19: 799
325/25/20: 788