The "Will it fit?" thread

k67p67 · 12-28-2022, 03:40 PM

Can you run a 285 on a 9" wheel? That is a bit wide for a narrow wheel, but yes it can be done. However, you can't run 245/40 with 285/40. That's over 5% differential in diameter. VDC is not going to like that. Alternatively, you could run 245/40 with 285/35.

A better solution would be to get some wider wheels.

New370z · 12-29-2022, 11:02 PM

Rear stock tire size is 245/45 so if im going with a 285/40 its only a 1.06% (0.3")diameter difference according to Fitment industries tire calculator. Not sure at what percentage difference it starts messing with VDC. But yeah main question was that if 285 would fit on 9 in wheel.

k67p67 · 12-29-2022, 11:29 PM

Comparing a 285/40 to the stock 245/45 is irrelevant given that you're not running the stock tire size in front. The VDC system starts to get temperamental when the front/rear tire diameter differentials exceed 3%. As I mentioned, a combination of 245/40 and 285/40 will result in a diameter differential of more than 5%.

12-28-2022, 03:40 PM	#1 (permalink)
k67p67 Enthusiast Member Join Date: Oct 2016 Location: Rancho Cucamonga, CA Posts: 317 Drives: 2017 Nismo Tech 6MT Rep Power: 3938	Can you run a 285 on a 9" wheel? That is a bit wide for a narrow wheel, but yes it can be done. However, you can't run 245/40 with 285/40. That's over 5% differential in diameter. VDC is not going to like that. Alternatively, you could run 245/40 with 285/35. A better solution would be to get some wider wheels. __________________ SOLD2017 370Z Nismo Tech 6MT PART OUT IN PROGRESS Work \| Motordyne \| Powertrix \| Swift \| Michelin \| Takeda \| Hotchkis \| RJM \| Voodoo13 \| SPL \| SPC \| Z1 Motorsports \| ZSpeed \| Morimoto \| Craft Square

12-29-2022, 11:02 PM	#2 (permalink)
New370z Base Member Join Date: Nov 2017 Location: TX Posts: 3 Drives: 16 370z automatic Rep Power: 9	285/40 Rear stock tire size is 245/45 so if im going with a 285/40 its only a 1.06% (0.3")diameter difference according to Fitment industries tire calculator. Not sure at what percentage difference it starts messing with VDC. But yeah main question was that if 285 would fit on 9 in wheel.

12-29-2022, 11:29 PM	#3 (permalink)
k67p67 Enthusiast Member Join Date: Oct 2016 Location: Rancho Cucamonga, CA Posts: 317 Drives: 2017 Nismo Tech 6MT Rep Power: 3938	Comparing a 285/40 to the stock 245/45 is irrelevant given that you're not running the stock tire size in front. The VDC system starts to get temperamental when the front/rear tire diameter differentials exceed 3%. As I mentioned, a combination of 245/40 and 285/40 will result in a diameter differential of more than 5%. __________________ SOLD2017 370Z Nismo Tech 6MT PART OUT IN PROGRESS Work \| Motordyne \| Powertrix \| Swift \| Michelin \| Takeda \| Hotchkis \| RJM \| Voodoo13 \| SPL \| SPC \| Z1 Motorsports \| ZSpeed \| Morimoto \| Craft Square

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