What psi to run mt e/t street radials at?

[silverstangman]

I just got my 15X8 Weld Prostars put on this morning with 275/50/15 et street radials. need to know what psi to run them at on the street and at the dragstrip?
also I ordered my 15X4 Prostars but one of them came in bent so I have to send it back. Will I have any problem bolting these up? I will be running a 165 R15 tire on them. Thanks for any help.

 

[silverstangman]

anyone?

 

[gt347mustang]

start at 18 pounds and try launching at 3500, if you spin lower it to 16 and so, and so on. But if you hook well then launch at 3800 or so. finding the right pressure is trial and error, just dont go much lower than 12 or so because it will get scary at the top end. also what gears are you running?

 

[silverstangman]

3.55 motives at the moment. so about 25-28 lbs on the street?

 

[gt347mustang]

i would run 28 on the street because they will last longer that way(unlell you smoke them). and you relly don't need to be at optimum performance on the street.

 

[silverstangman]

no the only time i really drive it on the street is to work like 2times a month, or to the dragstrip. what about the 15X4 prostars up front? any problem or will they just bolt right up?