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360 What tire pressures are you guys running with PS4S ?

Discussion in '360/430' started by Kevin Rev'n, Aug 2, 2025 at 12:06 PM.

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  1. Kevin Rev'n

    Kevin Rev'n Two Time F1 World Champ
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    #1 Kevin Rev'n, Aug 2, 2025 at 12:06 PM
    I am curious what to try next or if I am already where I should be. Got wheels form tire shop and drove without checking, car was skatey at speed turned out they were 36 all around. No good so i went with 30 front & 32 rear. Not sure I am enjoying the feedback. It's close though, I am going to up it to 32 front and 34 rear but thought I would ask what you guys are running.
     
  2. dmijoskov

    dmijoskov Karting

    Oct 8, 2011
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    #2 dmijoskov, Aug 2, 2025 at 3:55 PM
    i set mine to 35 all around -
     
  3. grtoz

    grtoz Karting

    Dec 14, 2010
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    Graeme Towers
    #3 grtoz, Aug 2, 2025 at 8:03 PM
    32 front, 35 rear. PS4S give a much better ride than the Pirelli P Zero Corsas I previously used.
     
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  4. Kevin Rev'n

    Kevin Rev'n Two Time F1 World Champ
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    #4 Kevin Rev'n, Aug 2, 2025 at 9:07 PM
    Thanks for some feedback. I just adjusted to 32F 34R but no time to test it out today.
     
  5. hessank

    hessank Formula 3
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    #5 hessank, Aug 3, 2025 at 9:48 AM
    Bear in mind that 32 cold goes up to about 36 after about 10 minutes of driving. As the tires warm up so does the air inside.
    I run with an aftermarket TPMS system that also tells me the temperatures of the air in the tires.
    Your previous 36 all around would have been almost close to 42, hence the shakiness
     
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  6. Pete Schweaty

    Pete Schweaty Formula Junior

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    #6 Pete Schweaty, Aug 3, 2025 at 11:37 AM
    33 all around. 32F vs 34R is a rounding probably inconsequential to 99.999 percent of drivers. At the end of the day, any of those will work, just a matter of if you want to push the up or down arrow on you tire inflater more or less!

    Crap . . . I just read "360". I have an f430 so YMMV.
     
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  7. Kevin Rev'n

    Kevin Rev'n Two Time F1 World Champ
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    #7 Kevin Rev'n, Aug 3, 2025 at 12:00 PM
    Still thanks for the data. I have a friend w/430 & PS4S (aftermarket wheels) that runs 42 all around! I am thinking that the 360 may provide more road feedback than a 430 because I can tell if my fronts are a couple pounds off, yet he is telling me no difference! I always run ASR off so I'm not using the nanny cutouts to judge it's more of a guess on the rear PSI but I know it should be close to the fronts.
     
  8. TheRyanH

    TheRyanH Karting
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    #8 TheRyanH, Aug 4, 2025 at 6:17 PM
    A lot of these starting pressures are way too high if you're actually driving the car spiritedly. At sea level and 70* garage, I run mine 30/31 cold. Off memory, for Cup 2s on my 997 GT3 I think I was running them 27 psi or so cold to get them to 33 hot.
     
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