360 - Tires pressures for Michelin PS 4S? | FerrariChat
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360 Tires pressures for Michelin PS 4S?

Discussion in '360/430' started by No-Subt2, Mar 25, 2022.

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  1. No-Subt2

    No-Subt2 Karting

    May 6, 2019
    79
    Alexandria, VA
    Full Name:
    Danny
    #1 No-Subt2, Mar 25, 2022
    I have Michelin Pilot Sport 4S (PS 4S) tires on a 360 Spider with the factory modular 18-inch rims. Tire sizes are: fronts 225/40 ZR18, rears 285/35 ZR18. What tires pressures are recommended for this particular configuration for the front and rear tires? Thank you very much.
     
  2. clean512

    clean512 Formula 3

    Feb 4, 2010
    2,111
    Full Name:
    Josh @jtcarprojects
    #2 clean512, Mar 25, 2022
    I'm using 36 and 38 but I have 19s
     
  3. No-Subt2

    No-Subt2 Karting

    May 6, 2019
    79
    Alexandria, VA
    Full Name:
    Danny
    #3 No-Subt2, Mar 25, 2022
    The 19-inch rims would require more tire pressure (than 18-inch rims) to protect the rims better from impact due to less tire rubber height surrounding the rims. But still need what people recommend for the tire pressures for 18-inch rims.
     
  4. Need4Spd

    Need4Spd F1 Veteran

    Feb 24, 2007
    6,678
    Silicon Valley
    #4 Need4Spd, Mar 25, 2022
    I run those tires and sizes at 33 psi f/r. Starfish wheels.


    Sent from my iPad using FerrariChat
     
  5. tazandjan

    tazandjan Three Time F1 World Champ
    Lifetime Rossa Owner

    Jul 19, 2008
    39,167
    Clarksville, Tennessee
    Full Name:
    Terry H Phillips
    #5 tazandjan, Mar 25, 2022
    33 psi F/R is a good start point for many late Ferraris.
     
    Need4Spd likes this.

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