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Thread: Compression test results. Please advise.

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    Senior Member Jivepepper's Avatar
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    Compression test results. Please advise.

    I took a compression test and had a couple questions about the results.

    I did this on a warm motor with the throttle body open cranking about 3 times per cylinder. Maybe I should have turned it over a few more times?

    This is the results


    Rear of motor
    124-125
    125-125
    125-124
    125-126

    My pistons are 18cc and with a stock head the c/r should be 9.0:1--8.9:1.

    But I have added Stage 2 heads with the swirl dams removed with the combustion chamber increased. I also have Hp cams with 531 lift. 114lsa and 240 duration. 292 duration advertised.

    I like how close the numbers are. But what about the cranking pressure?
    Last edited by Jivepepper; 07-15-2008 at 10:07 AM.
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