Tire pressure

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  • February 2, 2016 at 11:39 pm #236014
    Don B
    Participant

    @don-b

    I have a VW based FF TD with fifteen inch tires.  I have the tires inflated to 32 pounds all the way around.  The car rides hard like the tires are very hard.  I am not sure of the weight of the car, but since it is fiberglass and should be lighter than it was as a VW sedan, I was wondering if I could reduce the pressure to obtain a smoother ride.  I know low or very low pressure can ruin the tires and adversely affect the handling of the car. I have only had this car for a few months, so I am asking those of you that have had the TD’s for a good while, what would be the recommended tire pressure…good for the tires and at the same time, good for a smoother ride. Thanks !!! 

    February 3, 2016 at 12:01 am #267202
    KentT
    Participant

    @kentt

    Use 15-18 PSI in the front, and 24-26 in the rear. May take a bit of experimenting on your part.

    Early FF TDr on 69 VW pan
    Slowly coming back from the ashes...

    February 3, 2016 at 10:03 am #267203
    Paul Mossberg
    Keymaster

    @pmossberg

    Ditto!

    Here are the official numbers for a VW Type 1:

    Bias ply (with 1-2 persons) –

    • Front – 16 psi (17 psi fully loaded; 18 psi after
      Jan. 1973)
    • Rear – 24 psi (26 psi fully loaded; 29 psi after
      Jan. 1973)

    Radial –

    • Front – 18 psi (both with 1-2 persons and fully
      loaded)
    • Rear – 27 psi (both with 1-2 persons and fully
      loaded; 29 psi after Jan. 1973)

    A VW Beetle weighed about 1850 pounds. Surprisingly, about the
    same as most TDr???s. So the original tire pressure spec is a good place to
    start!

    Paul Mossberg
    Former Owner of a 1981 Classic Roadsters Ltd. Duchess (VW)
    2005 Intermeccanica Roadster

    If you own a TDr and are not in the Registry, please go to https://tdreplica.com/forums/topic/mg-td-replica-registry/ and register (you need to copy and paste the link)

    February 3, 2016 at 12:02 pm #267204
    Vicenç Feliú
    Keymaster

    @sabreur76

    I’m running 18 psi front – 24 psi rear and it’s been working really well.

    Vicenç - (bee sense)
    Pembroke Pines, FL
    1986 Aston - BCW Model 52 - "Montse II"

    (1983 FiberFab MiGi II - "Montse")

    February 3, 2016 at 2:45 pm #267205
    edward ericson
    Participant

    @edsnova

    Go up a bit for autoX. Like, 22 in front & 28 rear. Otherwise lower.

    After I bought new tires the knuckleheads at the tire shop pumped like 35 lbs in all 4 of em. Thought my teeth were gonna shake out on the ride home.

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