Michelin Pilot Sport 4S Fitment for the GTR

Old Mar 2, 2021 | 04:42 PM
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Question Michelin Pilot Sport 4S Fitment for the GTR

Hi, just wondering if anyone has installed 4S or anything other than Cup 2 tires on the OEM GTR wheels?
Would 315/30 be best for the rear wheels or would 345/30 also fit without rubbing?
I'm planning on using 285/35 for the front wheels.

Thanks in advance.
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Old Mar 2, 2021 | 06:15 PM
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345/30ZR20 on the rear is no issue.
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Old Jun 5, 2021 | 09:07 AM
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Just wondering if you ever tried these sizes as I’m looking to switch to PS4S on my GTR and not sure what sizes to go for.
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Old Jun 5, 2021 | 09:25 PM
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Originally Posted by jn66
345/30ZR20 on the rear is no issue.
Have you ran a 345 in the rear on stock wheels? No rubbing issues? Does it look weird, so the tires stick out further than the vehicle or are they flush?
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Old Jun 6, 2021 | 10:26 AM
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These are Pirelli P Zeros in 285/35R19 335/30R20. The section and tread widths of the Pirellis are wider than the PS4S in the same sizes, so at least for the rears this is probably close to how a PS4S in 345/30 would look. Pirelli P Zero 335/30 has a 13.7" and 12.8" section and tread width, respectively, while the PS4S 345/30 is 13.8" and 12.4".



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Old Jun 8, 2021 | 08:00 AM
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What about 295/35 on front and 345/30 on the rear? would keep the same 20mm increase across front and rear and from a tyre comparison this seems the most similar combination of circumference and revs per min?
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Old Jun 8, 2021 | 09:45 AM
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Originally Posted by rianos
What about 295/35 on front and 345/30 on the rear? would keep the same 20mm increase across front and rear and from a tyre comparison this seems the most similar combination of circumference and revs per min?
It "should" work. I ran hoosier r7 on stock wheels a couple of times and I was running 295/30F and 335/25 rear but the rear is actually almost a 350
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Old Jun 8, 2021 | 02:35 PM
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I actually ran a 325/25 & 275/35 on a stock set of rims. Yeah, the rears have a short sidewall in comparison to the fronts but when mounted it looked ok.
Only really noticed if you were looking hard. The 4S over the CUP2 for DD is night and day difference.
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