My first street / strip tire

[BadJoey]

Ok here is my question . What should my tire presure be ? Tire is Mickey Thompson ET Street 255 60 15 . The man at discount tire said 30 lbs . A web site I found said 20 lbs .  Another one suggested 12 lbs for racing .  Chruco ? Thanks .

[dodj]

See what range M/T suggests then test. Change pressure. Test again. 

[roadman5312]

                  Recommended pressure should be on the sidewall.  Always check cold. 

[BS CUDA]

 I run mine on the street @ 28 - on the track between 12 and 14psi depending on track prep. Well over 300 passes on multiple sets of MT street ET's and this is what works best for my car.

[Chryco Psycho]

you want ti to lay down the full foot print without having too little pressure in the center , I would try BS suggestion

[BadJoey]

Thanks again guys . This club saves my a$$ all  the time . 28 it is . 

[HP2]

Draw a chalk line across the tread, roll forward a dozen feet, look at how much line has rubbed off, adjust pressure up/down to get optimal footprint. Cut pressur ein half for the track.

[Chryco Psycho]

look at the density of the chalk too
 if it is light at the edge it is overinflated , if it is lighter in the middle it is under inflated 24-26 seems about right 28 may be too high a little

[BS CUDA]

look at the density of the chalk too
 if it is light at the edge it is overinflated , if it is lighter in the middle it is under inflated 24-26 seems about right 28 may be too high a little

Agreed -I was just out hammering mine and could tell in the rear view mirror that I have too much air in them due to the contact patch (otherwise known as burnout strips) left behind. Gonna drop the PSI and try this highly technical chalk method.

[BadJoey]

I got into it for the first time with the new tires today . I only went once so I can get out of the area before anyone calls me into the police . I can,t get over the difference .Car went straight as a arrow with very little spin  On the other hand my RPM,s wasn't high enough when I let the clutch out and the car hesitated a little but took right off after a second . I'm a little worried about beating on the car . Is there any weak points I should keep a eye on . Broken springs , leaf spring mounts ,and what ever el :working:se ? Having a ball so far . But do not want to wreck or hurt anything .  Buy the way I love the tip about the chalk .

[dodj]

Seeing as you are hooking up better, frame connectors would be a wise addition. I had a friend back in the 80's that spent $ on the 383 in his cuda plus added M/T tires and after having fun one evening, his doors didn't shut properly anymore. Still usable but noticeable.

[Chryco Psycho]

Weal points are beating up on Chevs & Fords