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      09-30-2012, 11:06 PM   #1
catchm3com
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Tire pressures for autocross

I'm running 18x10's w 275/35/18 direzzas, any suggestion on what pressures I should set em? i tried using 41lbs in the front, 38's in the back and it felt fine. just wanna see what others are doing.
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      10-02-2012, 01:35 AM   #2
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Quote:
Originally Posted by catchm3com
I'm running 18x10's w 275/35/18 direzzas, any suggestion on what pressures I should set em? i tried using 41lbs in the front, 38's in the back and it felt fine. just wanna see what others are doing.
I would run those pressures HOT or a little lower. I run 36 F and 33R cold and gain a lot of heat in the fronts; like 3psi per 50 second run. Above 42 I have felt the car break traction or become unsettled easier. You can see it if you are trail braking and really pushing it.

I go 37/35 hot for autocross. Dont forget I am running R comp tires R888s and RA1s. Different tires than you, but I ran stock PS2s fairly close to that too. Also I am crazy about the right settings and chalk my tires to make sure they are using the perfect amount of tread.
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      10-02-2012, 10:05 AM   #3
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40psi hot on ad08's
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      10-02-2012, 08:40 PM   #4
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Quote:
Originally Posted by Merked M3
Quote:
Originally Posted by catchm3com
I'm running 18x10's w 275/35/18 direzzas, any suggestion on what pressures I should set em? i tried using 41lbs in the front, 38's in the back and it felt fine. just wanna see what others are doing.
I would run those pressures HOT or a little lower. I run 36 F and 33R cold and gain a lot of heat in the fronts; like 3psi per 50 second run. Above 42 I have felt the car break traction or become unsettled easier. You can see it if you are trail braking and really pushing it.

I go 37/35 hot for autocross. Dont forget I am running R comp tires R888s and RA1s. Different tires than you, but I ran stock PS2s fairly close to that too. Also I am crazy about the right settings and chalk my tires to make sure they are using the perfect amount of tread.
nice. I'll try that this weekend.
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      10-07-2012, 10:53 PM   #5
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Quote:
Originally Posted by 2000gsr
40psi hot on ad08's
tried 40s, got a little better response when I brought em down to 36 up front, 35 in the back. I'm gonna keep messing around with em.
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