m42 Compression Ratio

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  • PeaveyBassist
    No R3VLimiter
    • Sep 2004
    • 3511

    #1

    m42 Compression Ratio

    What is the stock CR of the m42? e30/e36 if they are different. Also, What is the stock headgasket thickness for an m42? VAC Motorsports has a steel headgaskt that is 0.140". What CR would you get if you had everything stock, except for the 0.140" headgasket?

    Will
    RIP e30 (brilliantrot '91 325i) 11/17/06 Byebye: 8/21/07
    Welcome e30 (brilliantrot '90 325is) 12/23/06
    DaveCN = Old Man
    My signature picture was taken by ME! Not by anyone else!



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  • Jon325i
    R3V OG
    • Oct 2003
    • 6934

    #2
    Search around http://www.m42club.com. I'm fairly certain it is 10.5:1. Someone else confirm my (in)accuracy.

    Jon
    Rides...
    1991 325i - sold :(
    2004 2WD Frontier King Cab

    RIP #17 Jules Bianchi

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