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air pressure for 458 challenge tyres?

Discussion in 'Challenge/GT Cars/Track' started by cirugiadigestiva, Apr 30, 2011.

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  1. cirugiadigestiva

    cirugiadigestiva Formula Junior

    May 2, 2010
    357
    ibiza
    Full Name:
    francisco vilas
    #1 cirugiadigestiva, Apr 30, 2011
    hello we have a question, we track the challenge some days ago in montmelo, we star with 2 bars pressure in cold, but the rear whas very nervus......, we lower the pressure to 1,4 bars cold, and the feeling whas perfect, the car very fast, we can,t track to muth tours, but the car work perfect with this pressure
    some people of the team thing this pressure are to mutch lower and dangerus, what do you thing?
     
  2. Modena F1

    Modena F1 Karting

    Aug 1, 2008
    73
    Barcelona, Spain
    Full Name:
    Josep
    #2 Modena F1, May 2, 2011
    Dear Francisco

    You must get 2,1 bars when the tyre is warm. To reach this preasure when the tyre is cold, you can begin with 1,5 bars. Run for 3 laps, and when the tyres are warm, stop and chek the tyre pressure to get 2,1 bars.
     
  3. cirugiadigestiva

    cirugiadigestiva Formula Junior

    May 2, 2010
    357
    ibiza
    Full Name:
    francisco vilas
    #3 cirugiadigestiva, May 2, 2011
    thanks, excuse me in centigrades, what is warm you? 80º? o more
    thanks again

    francisco
     
  4. aptperformance

    aptperformance Rookie

    Feb 7, 2011
    29
    #4 aptperformance, May 2, 2011
    hi everybody, the tech info of the car say 1,3 in cold and 1,6 in warm.............I think is too low, but the car runs better with this pressure.
     
  5. fatbillybob

    fatbillybob Two Time F1 World Champ
    Consultant Owner

    Aug 10, 2002
    29,026
    socal
    #5 fatbillybob, May 16, 2011
    probe pyrometer will tell you the correct pressure which is driver/tire/track condition specific.
     

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