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Old Aug 4, 2005 | 01:09 AM
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Where should it be @ I have 275 40 17 and max PSI is 44 the car is probably around 40 PSI

What should i run it @ at the track for best results?
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Old Aug 4, 2005 | 01:36 AM
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Those tires should be around 32psi for street driving.

Lowering the pressure of street tires won't help all that much. I wouldn't go below 25psi, that's as low as i took the eagle F1's on my WS6, and i was cutting high 1.9's on them.
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Old Aug 4, 2005 | 01:36 AM
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Do take the fronts up to about 45psi though....it will help reduce rolling resistance some. Every bit helps, right.
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Old Aug 4, 2005 | 04:11 AM
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I blew em away no matter what preasure I was at, so I just dont bother with em.
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Old Aug 4, 2005 | 08:19 AM
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Originally Posted by BlueSix
Those tires should be around 32psi for street driving.

Lowering the pressure of street tires won't help all that much. I wouldn't go below 25psi, that's as low as i took the eagle F1's on my WS6, and i was cutting high 1.9's on them.

These tirs say Max PSI is 44

Stock F1's were 34 so yeah run the F1's @ 25 makes sense- But what about the KDW... Anyone else have any other experience with the tires

(I have also heard that PSI doesnt really make a difference but never knew 100% whats right or wrong)

Thanks for the replies so far-- any more? I'd really love to go to the track this weekend or the next, and want to prepare as much as possible for it.
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Old Aug 4, 2005 | 10:53 AM
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It's a street tire....lowering the psi isn't going to help all that much. The fronts will be find bumped up to 45 for a short period of time....if you're that worried about it then only put them up to 44. I put the KDWS's on my GTO down to 25 when i race it. I was cutting 2.0's without trying. 25 in the rears is as low as you should go.
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