to cut / port/ pistons skirts or not? seadoo 951 engine, pictures
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  1. #1
    PWCToday.com Is My Home Away From Home sxr951's Avatar
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    to cut / port/ pistons skirts or not? seadoo 951 engine, pictures

    to cut pistons skirts or not? seadoo 951 or shoud i leave it as is.
    will this make any diff in peformance or not.and if so where in powerband will it be felt.
    to cut the skirt and also the lower sleeve by intake.
    coffman exhaust pipe and low comp, stock carbs, watercraft magic jets
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    Last edited by sxr951; 07-23-2009 at 01:27 PM.

  2. #2
    PWCToday.com Is My Home Away From Home Rudedog's Avatar
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    Re: to cut / port/ pistons skirts or not? seadoo 951 engine, pictures

    What might I ask, is a "coffman JEWISH exaust pipe"???

    Rudedog

    The faster you go, the faster you wanna go. RPM
    Bomber Eyewear, Impros, KMG

  3. #3
    PWCToday.com Is My Home Away From Home sxr951's Avatar
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    Re: to cut / port/ pistons skirts or not? seadoo 951 engine, pictures

    well its not exactly an irish name..lol great people at coffman by the way.

  4. #4
    PWCToday.com Is My Home Away From Home Rudedog's Avatar
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    Re: to cut / port/ pistons skirts or not? seadoo 951 engine, pictures

    Well, it COULD be german !!!! LMAO
    TOO FUNNY

    Rudedog

    The faster you go, the faster you wanna go. RPM
    Bomber Eyewear, Impros, KMG

  5. #5
    PWCToday Guru
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    Re: to cut / port/ pistons skirts or not? seadoo 951 engine, pictures

    I've got a set of pistons that are cut like that. They came from a Rossier Big Bore.

  6. #6
    PWCToday.com Is My Home Away From Home sxr951's Avatar
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    Re: to cut / port/ pistons skirts or not? seadoo 951 engine, pictures

    yes i dont no if i cut the skirts if it will be worth doing.

  7. #7
    PWCToday.com Is My Home Away From Home sxr951's Avatar
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    Re: to cut / port/ pistons skirts or not? seadoo 951 engine, pictures

    think i found my answer on a franco cylinder. the rear lower intake cylinder , to cut out . who the hell is franco anyway
    http://pwctoday.com/f13/hydrospace-h...le-221873.html
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    Last edited by sxr951; 07-23-2009 at 09:23 PM.

  8. #8
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    Re: to cut / port/ pistons skirts or not? seadoo 951 engine, pictures

    Seriously? He was rotax racing before rotax racing was cool. Remember Gimmi Bosio?????

  9. #9
    Frequent Poster scensor's Avatar
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    Re: to cut / port/ pistons skirts or not? seadoo 951 engine, pictures

    Woah a rotax racing triple port. Any intel who has this engine?

  10. #10
    PWCToday Guru Mentzel's Avatar
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    Re: to cut / port/ pistons skirts or not? seadoo 951 engine, pictures

    Better gains going to a big bore setup.

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