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    Compression Ratio

    For the 2009 GTX-is and RTX-is SeaDoo shows the Compression Ratios in there spec sheet for the 8,4.1 for the GTX-is and 10,6.1 for the RTX-is
    why is this or is it a miss print?


  2. #2
    King_Of_Fun's Avatar
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    10.6:1 is for the NA (non-aspirated or non-SC equipped) engine. 8.4:1 is the compression ratio of the SC-equipped engines... Ron

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    monaroman76's Avatar
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    Quote Originally Posted by bluewrx2001 View Post
    For the 2009 GTX-is and RTX-is SeaDoo shows the Compression Ratios in there spec sheet for the 8,4.1 for the GTX-is and 10,6.1 for the RTX-is
    why is this or is it a miss print?
    Motors with forced induction always run lower compression ratios to compensate for the boost pressure..

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