I am running Mickey Thompson 325/50/15s on 12" wheels. Having trouble getting them to hook up. I am running 25 lbs. what pressure are you guys running? Ladder bar car, 2.48 first gear, 4.30 rear. Hand controls but same as you guys leaving off foot brake.Galen

I run that exact tire/gear and run anywhere between 15 and 18lbs. yesterday I ran 15.5 all day and my 60's varied no more than .015 and most of that was probably me and how I bumped into the light.

I would think 25 is too high.

https://board.moparts.org/ubbthreads/show...rue#Post5603572

Ron and Bill, Thanks. I will drop them to 18 and see what it does. That is if it quits raining, and we dropped into the 40s today.

17.5 to 22 lbs depending on the track and conditions. I run the 315x60x15 on ten and twelve inch rims, no differences that I can see other than tire clearances on the 12 inch rims

When the track is good, I can run 19.5 to 20 psi in my 295-65 M/T ET Street Radials. The lowest I've run is 17 psi. Yesterday it didn't matter what I did they kept going up in smoke. CHIP