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Thread: above water exhaust outlet mod

  1. #21
    Team Member JohnsonM50's Avatar
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    Quote Originally Posted by microbream View Post
    thanks for the replies guys,
    i ended up leaving the exhaust tube outlet below the cav plate. I just opened up the three holes on the midsection slightly from 4-6mm. Should make it slightly louder if nothing else, may help holeshot, we will see.

    Further on that engine , i have just resprayed it and was very impressed by the exhaust profile, even has a diffuser built into the mid section.
    Although the port matching between the cylinder sleeve and the case needs some work.
    Would be interesting to add an accelerometer to the standard speedo & tach test data normally gathered

  2. #22
    Sam Cullis Mark75H's Avatar
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    There's an ap for that ... an iPhone can do it
    Since 1925, about 150 different racing outboards have been made.


  3. #23
    Team Member JohnsonM50's Avatar
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    [QUOTE=Mark75H;109992]There's an ap for that ... an iPhone can do it[
    /QUOTE] I had no idea, no I phone either.

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