F40 Compression and Leakdown? | FerrariChat
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F40 Compression and Leakdown?

Discussion in '288GTO/F40/F50/Enzo/LaFerrari/F80' started by Bill S, Aug 9, 2010.

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  1. Bill S

    Bill S Formula 3

    Oct 2, 2004
    1,995
    #1 Bill S, Aug 9, 2010
    I had my F40 tested for compression and leakdown. Does anyone have the results of these tests for their F40? Here are my results on a 6,500-mile car:

    Compression (lbs)/Leakdown (%)

    1 - 150/2
    2 - 145/2
    3 - 144/2
    4 - 145/2
    5 - 140/2
    6 - 130/5 (intake)
    7 - 135/2
    8 - 135/2
     
  2. JoshECS

    JoshECS Formula Junior
    BANNED

    May 3, 2010
    433
    Ashburn,VA
    Full Name:
    Josh Hill
    #2 JoshECS, Aug 9, 2010
    The F40 runs lower compression numbers due to the lower compression pistons for the turbo application. They're very consistent 1-4 and 5-8, does seem the 5-8 bank is a bit lower though...perhaps cam timing is off a touch.

    The leakge numbers look great 2-5% is fantastic.
     

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