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  1. #1

    Exhaust manifold

    Greenhulk did you or anyone you know test that exhaust spacer from ppg. Wonder what we can do to mod the manifold maybe bore it.


  2. #2
    Site Admin Green Hulk's Avatar
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    No, the only thing i saw of that manifold were pictures.

  3. #3
    Moderator two2curupt's Avatar
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    I ported mine...No noticable difference anyways..

  4. #4
    Nonstop, all day, everyday. 01xdime's Avatar
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    What about the one on the the Yellow site or Quattro?

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    GRF + DashPac:) seadoo02xp's Avatar
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    ppg talked about how they had some made but i never got on on my ski when they built it, he said i wouldnt see a gain, but who knows

    its kind of hard to tune a manifold when it goes through a waterbox and then another rubber hose

  6. #6
    Nonstop, all day, everyday. 01xdime's Avatar
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    In any case longer, more equal runners will almost always yield gains. I'm curious how the one on Quattro's is made. It looks like they start off with a mounting flange, build the runners off of that like shorty headers, and simply build a box around them with a bolt on cover for cleaning or inspection. This could be fairly easily built by someone with a plasma cutter, welder, and good welding skills. If i only had the time and resources.

  7. #7

    pic

    post a pic of it xdime.

  8. #8
    01X: Dude someone building a header surrounded by a water case would cost $$$, Most boat headers that are water jacketed are exposed to lots of air to help keep them cool, like in BB jet boats, I don`t think one could build one small enough for the amount of space in our hulls, and keep it cool...PR...

  9. #9
    Nonstop, all day, everyday. 01xdime's Avatar
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    Quattro motorsports page shows this engine with an interesting exhaust manifold.
    Attached Thumbnails Attached Thumbnails Click image for larger version. 

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  10. #10
    EZ Dock of Long Island Shibby1485's Avatar
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    still curious about that intercooler.... i bet it is sick in the cooler months... probably a dog in the summer. I might need to get two different intercoolers depending on weather conditions

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