Help!! 1.18???

synolimit

But the fronts 47 and rear is 30. It's a 17 difference which isn't 1.18. It's some kind of ratio I can't figure out.

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13 370z-

chrischhorn

closest ratio I can think of that possibly pertains to this situation is tire widths but still its still not an exact match to the 1.18. 275/245 =1.12 but with you speaking of understeer and oversteer, it pertains to the situation. Wider front tire = more understeer.

BTW I just ordered my set of tires. 275/35/18 for the front and 295/35/18 for the rears in the BFGoodrich Rivals for my 18X9.5+35 and 18X10.5+12

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R.I.P. 8/01/13 1SlowZ
One day I'll have another....

synolimit

Hmm, maybe it was 1.12 then.

Why go for understeer with the larger front tire you ordered? doing the math though 295/275 is only 1.07. so is the lower number more under or oversteer?

I looked at those sizes but I didn't want the front only being 25.6" diameter since OEM is 26.8". I don't think I could even lower the car.

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13 370z-

chrischhorn

My car is lowered about an inch, maybe a bit lower already. Our cars are front heavy and if you check the track section, most people recommend a 285 or larger for better breaking power on the front. There is a reason a lot of track members are running square setups, not even staggered anymore. Understeer/Oversteer isn't a huge factor for me right now. Having the car bite and control consistently will yield faster times then whether I have more understeer or oversteer.

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R.I.P. 8/01/13 1SlowZ
One day I'll have another....