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Thread: Dot air psi

  1. #1

    Default Dot air psi

    1 st time on dirt with a dot 3200# pures stock with 235/70r 15 have no idea what psi to run any help appreciated

  2. #2
    Join Date
    May 2010
    Posts
    632

    Default

    I ran 18 left and 20 right and some ran 20 -25.

  3. #3
    Join Date
    Jan 2011
    Posts
    217

    Default

    it depends on the style/condition of the track. I run 18-34 on the left, and 29-34 on the right.

    Some of the numbers guys post on here I wouldnt even think of running but it must work for them. On a fast, high banked track I have knocked the RR tire off the bead at 27lbs with aero wheels and a TUBE! Eric

  4. #4
    Join Date
    May 2010
    Posts
    632

    Default

    Eldora in ohio with a 3400 lb car, 18 and 20 with no tubes, no problems for 7 years.. I tried the higher pressures and car was always to loose. Try something and let us know.

  5. #5
    Join Date
    Sep 2011
    Posts
    104

    Default

    15 rf 14 rr and I think I got the lf down to 8 one night. This was 275/60/15 on a 8in wheel. Ya had to vet used to it. When ya entered the corner you could feel the tire roll over.

  6. #6
    Join Date
    May 2007
    Posts
    288

    Default

    20-24 right side, 16-20 on lr and LF I always ran it around 12-16. Would go up from that if track was heavy and lower when track was really dry. No tubes. Radials need more air than racing tires

  7. #7
    Join Date
    Aug 2010
    Posts
    122

    Default

    you only run high tire pressure when and tubes when you dont run beadlocks, and thats not safe, ive never not ran beadlocks on the right side, but i run 14 right side, and 17 left side

  8. #8
    Join Date
    Jan 2011
    Posts
    217

    Default

    Most classes that require DOT tires, DONT allow beadlocks. If you can run beadlocks then you clearly can drop the pressure a lot on the right side. Eric

  9. #9
    Join Date
    Mar 2008
    Posts
    766

    Default

    about 16 on the rr is as low as I could get down to and be consistent I ran 20 rf 18 lf 17 lr 16 rr this on a dry slick on a heavy track I went up a couple of 3s only because of rr We couldn't run Beadlocks either We did glue them on Mon to run Sat But honestly I don't know if it was worth the trouble
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