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  1. #1

    Join Date
    Jul 2008
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    Brandon Manitoba
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    34

    good 1050 compression #'s

    I have a 99slx 1050 the compression #'s are 125 / 120 / 125.With the same gauge on my 96 seadoo gsx 800 they are 147 / 150. I'm just wandering what are good compression #'s for these 1050 motors with new pistons, rings & stock heads?


  2. #2

    Join Date
    Sep 2006
    Location
    topeka,ks
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    3,332
    well those are heathly numbers , you dont want your compression to differ more than 5 %

  3. #3
    Yep... SeaDoo has about 150 as static compression, and Polaris is around 125. Thats why SeaDoo needs API-TC oil, and that they get 135 HP from a twin 951cc engine, and Polaris needs a triple 1200cc engine to get the same power. (not bashing, just saying)

  4. #4
    ryandi2's Avatar
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    Aug 2009
    Location
    conesus ny!
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    2,092
    +1
    19
    those numbers are good

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