Woah this is blowing me away... just started getting into cars... so addicted...
can someone explain the science behind tirepressure? someone once told me bout hving less psi if you want turning or was it more? i'm not sure... could someone please direct me to some good links about basic mechanics of cars? or maybe like to explain it on this forum?

 

Less pressure allows the sidewall to flex = more traction off the line. (Think dragracing)

More pressure allows for a stiffer sidewall = helps with steering response and helps prevent the tire from rolling over on itself in a turn.

Of course there is just a generalization. YMMV.

 

ic... how bout PSI wise? wen people say more or less pressure do thye mean goin to the standard max or standard min? or is it realli goin like a few PSI higher or few PSI lower than standard?

 

Every situation is different.

If you're driving on the street, leave it at 29psi (stock pressure).

If you're autocrossing or road racing, you will want to raise it above that. If drag racing, you will want it lower.

Your tires and racing conditions will determing how much you will adjust the pressure. There is a lot of trial and error involved in doing so.

 

ic...i'm more the driving on the streets and giving people smooth rides type of guy oh and safety first when turning :D