Quote:
Originally Posted by strat61caster
Chalk and triangles aren't terribly useful IMO a pyrometer is better, and there's no magic tire pressure, every setup and drive is different.
Changing to a more track oriented tire and adding camber are the only solutions outside of absolutely babying the tires, which probably gets boring quick.
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Quote:
Originally Posted by zdr93523
Totally agree with your second comment but the first comment is inaccurate. Tires have very specific pressures where they function the best. .5 psi one way or the other and you will have adverse handling. So there is a magic tire pressure for each given tire. BFG, for example, has a chart you can download. Maxxis RC1s are great at 38 psi (if I remember right). 38.5 or 39 and you're understeering. My Pirelli Slicks function at 28-28.5 psi hot. 29 psi and you'll understeer. 27 psi and you don't get all of the grip that should be there.
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You're kinda saying the same thing... he said every setup and driver will be different.
What pressure works for your car will be different than mine unless we're running the same spring and damper rates, alignment, etc.
To really set pressures and camber you need a pyrometer, good lap timer, and consistent driving/weather. Just because a car starts to understeer more with 0.5psi higher pressure doesn't mean it's slower, it might be generating more grip and have higher cornering speeds, it just shifted the grip balance rearward a bit.