What are good tire inflations for track use?

Originally posted by Defiant:
Hey - I NEED some help from anyone that knows! I asked before but didn't get any responses - does anyone know what proper tire inflation should be for driving school and autocrossing?

Thanks in advance for any help offered!
Cheers,
sean

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Sean,

You'll probably want to use different pressures for autocrosses versus driving schools (tracks). It also will depend on the tires. When I ran my car at Buttonwillow Raceway I used 37 front and 34 rear (cold). Seemed to be ok but I didn't spend too much time trying different pressures.

For autocross, because the tires don't really have a chance to get hot, I'd start about 3 pounds higher.

Remember, to reduce understeer, raise the front or lower the rear pressures. I doubt you'll have to contend with oversteer.

Louis

Thank you Louis! I"ll let you know how it goes tomorrow - then I"m at Sebring on the 13th of May. THanks for your help!
Sean

I run about 28-32 PSI cold yielding 38-40 at temp F/R on my 275 square set with PSS. I have found that to be the best range for traction, anything less and the front tires will roll over during hard cornering.

Nice thread bump.

Code_Monkey said:

Nice thread bump.

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Almost 19 years, I think we have a record!

Looking out the window for my Publishers Clearing House size check....