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Piston slap?

Discussion in 'Boxers/TR/M' started by Threeofnine, Sep 29, 2025 at 8:32 AM.

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  1. Threeofnine

    Threeofnine Formula Junior

    Dec 11, 2020
    435
    Birmingham, AL USA
    Full Name:
    Jarrod Heath
    #1 Threeofnine, Sep 29, 2025 at 8:32 AM
    Is piston slap ever an issue with a Testarossa?
     
  2. Ferraripilot

    Ferraripilot F1 World Champ
    Owner Project Master

    May 10, 2006
    17,929
    Atlanta
    Full Name:
    John!
    #2 Ferraripilot, Sep 29, 2025 at 9:11 AM

    I don't think so. I believe TR pistons are cast aluminum which can run tighter clearances than custom forged pistons made of various alloys, and even forged pistons made of 2618 can run pretty tight given the bore size, 4032 even tighter. @Rifledriver can you confirm if OE pistons are cast or forged?
     

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