Pirelli verhoogt bandenspanning voor Singapore

  • Gepubliceerd op 17 sep 2015 11:27
  • 11
  • Door: Rob Veenstra

Bandenleverancier Pirelli heeft de teams geïnformeerd over de minimale bandenspanning voor de Grands Prix van Singapore en Japan, zo meldt Auto Motor und Sport. Voor het weekend op het stratencircuit van Singapore geldt een minimale bandenspanning van 18 PSI voor de voorbanden en 17 PSI voor de achterbanden.

Vorig jaar bedroeg de minimale bandenspanning voor Singapore nog 16 PSI. Om aan de veilige kant te blijven schrijft Pirelli ook een lagere camber voor de banden voor. De voorbanden mogen nog maar onder een hoek van 3,75 graden op het asfalt staan. Dat was 4,5 graden. Voor de achterbanden neemt de hoek af van 3 graden naar 2,5 graden.

Een week later staat de Japanse Grand Prix op het snelle circuit van Suzuka op het programma. Voor dat weekend hanteert Pirelli een nog hogere bandenspanning. De voorbanden gaan dan naar 21,5 PSI en de achterbanden naar 20,5 PSI. De bandenfabrikant is er alleen nog niet in geslaagd om samen met de internationale autosportbond FIA een helder protocol voor het meten van de spanning to formuleren.

Reacties (11)

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  • 18 PSI = 1,24 bar
    17 PSI = 1,17 bar
    16 PSI = 1,10 bar
    21,5 PS = 1,48 bar
    20,5 PSI = 1,41 bar

    Ik heb het maar even omgerekend naar het in Nederland meer gebruikelijke bar, want dat hele PSI gebeuren zegt me niks namelijk en met mij vast nog wel meer lezers op deze site.

    De druk lijkt erg laag vergeleken met straatauto's, die staan bij 1-1,5 bar bijna op hun velgen :D

    • + 2
    • 17 sep 2015 - 11:36
    • ralph2102

      Posts: 952

      Bedankt, was er zelf te bedonderd voor.

      • + 0
      • 17 sep 2015 - 11:43
    • Dit is natuurlijk wel het minimum wat er in moet zitten. Door het opwarmen van de band kan dat nog hoger worden. Hoeveel weet ik niet precies.

      En een straat auto is natuurlijk een stuk zwaarder dan de +/- 650kg dat een F1 auto weegt.

      En als mijn band van de auto beetje leegloopt tot 1.1 bar dan staat die idd bijna op de velg. Moet ook 2.4 bar in de mijne..

      • + 0
      • 17 sep 2015 - 12:07
    • fritsveer

      Posts: 3

      Voor info:
      Een 100 graden temperatuur verhoging van de banden temperatuur levert ongeveer 0.33 bar drukverhoging in de banden.

      Zelf na rekenen?
      P.V/nRT=P.V/nRT ==> P/T=P/T (rest constant, T in kelvin P in Pa of Bar)

      • + 0
      • 17 sep 2015 - 14:58
    • Hierbij aangevende dat dit op 80 graden Celsius word gemeten

      @Fritsveer, deze formule geld niet voor stikstof, alleen voor lucht!

      • + 0
      • 17 sep 2015 - 15:56
  • MRDude

    Posts: 38

    De spanning loopt op.

    • + 2
    • 17 sep 2015 - 12:28
    • Ik moest even grinniken... ;-)

      • + 0
      • 17 sep 2015 - 12:35
  • Loopt amper op die spanning. Zit een speciaal luchtje in de band, zoiets als stikstof, dat zorgt voor een gelijkmatiger drukverschil bij diverse snelheden in tegenstelling tot ons alom gebruikte zuurstof.

    • + 0
    • 17 sep 2015 - 12:30
  • louc_

    Posts: 2.303

    Mercedes houd zich toch niet aan die gegevens.

    • + -1
    • 17 sep 2015 - 12:32
    • Kubica

      Posts: 5.179

      Goedkoop ...

      • + 1
      • 17 sep 2015 - 13:35
    • jack-b

      Posts: 104

      Ferrari wel??

      • + 0
      • 17 sep 2015 - 14:00

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