Stupid question on flywheels... | FerrariChat

Stupid question on flywheels...

Discussion in 'Boxers/TR/M' started by Gary Sandberg, May 17, 2024.

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  1. Gary Sandberg

    Gary Sandberg Formula Junior

    Had a rather major (catastophic) failure of the pressure plate that resulted in a few bolts being distorted on the flywheel.

    A friend fo mine (aircraft mechanic on C130s and 737s), said to just get a new part.

    But, question is, are the flywheels different for NA, Eurospec, Cats, non Cats...

    Doesn't make sense to me, but prices range from $1100 USD to $10,000 USD.

    I will also visit a machine shop to get a better picture.
     
  2. Rifledriver

    Rifledriver Three Time F1 World Champ

    Apr 29, 2004
    34,830
    Austin TX
    Full Name:
    Brian Crall
    Make? Model? Year?
     
  3. Rifledriver

    Rifledriver Three Time F1 World Champ

    Apr 29, 2004
    34,830
    Austin TX
    Full Name:
    Brian Crall
    You have closed us out of your profile and then ask for help and give us no information.
     
  4. Gary Sandberg

    Gary Sandberg Formula Junior

    Not sure about the profile thing.
    Anyway, 1990 Testarossa, Eurospec, no cats. Aftermarket exhaust is TWS from Japan.
     
  5. Steve Magnusson

    Steve Magnusson Two Time F1 World Champ
    Lifetime Rossa

    Jan 11, 2001
    25,312
    30°30'40" N 97°35'41" W (Texas)
    Full Name:
    Steve Magnusson
    #5 Steve Magnusson, May 17, 2024
    Last edited: May 17, 2024
    The valve timing and ignition timing marks on the flywheels are different for the different versions (but I think the basic structure of the flywheel is the same and would fit any TR).

    PS Hill Engineering makes a kit to change a TR to the 512TR style single plate clutch (that includes a new flywheel) -- might be something to consider if the stock parts prices are unreasonable:

    https://www.hillengineering.co.uk/kits-2/cck-testarossa-90
     
    turbo-joe likes this.

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