Quote:
Originally Posted by 3002 tii
Max, thanks for detailed response. I’m surprised 245 is too tall considering it’s still 1/3” shorter than stock. So then I guess my next question is how much camber is necessary to stuff a 245-255 up front? This would be for a road course setup so I would prefer more grip up front. If I am limited to 235, then I might even dial the rear back to 265, using same rear width recommendations as above. Thoughts?
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3002 tii,
Apologies on the 245/40-18 recommendation above. This tire size can work but will not be a direct fit on the 18x9 ET30 and will require some camber to aid in fitment.
We would recommend the 18x9 ET30 to pair with the 255/35-18 or a 245/40-18. Camber is required for both of these tire fitments (-2.2˚ and -1.8˚ respectively).
We have had quite a few enthusiasts who have managed to run our 18x9.5 ET35 up front and the 18x10 ET25 in the rear. You will need to use a 5mm spacer and about -2.2˚ camber up front to clear the suspension and the fender. Camber will vary based on ride height and tire compound.
For this setup we would recommend the 255/35-18 up front and a 275/35-18 in the rear for optimal sidewall support. The 275/35-18 will clear in the rear without a fender roll unless you are running at a lower ride height but camber is required. In that case, we would recommend maxing out the stock camber arms or rolling the rear fenders to aid in clearance.
- Max