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  1. #1
    kimi's Avatar
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    Wiseco or CP pistons?

    Hello, guys. I have Sea Doo RXP 2006 year. I have made some mods: Rotax racing camshaft, Rotax racing ECU, ported head, Riva 50lb injectors, ET68-140 XLE S/C, custom made intercooler, BEGI 2025 FPR. Now I'm using PROX big bore 100.5mm pistons kit, but I'm not very happy about this kit. Which pistons are better for my Sea Doo: Wiseco or CP? Or maybe stock pistons? Thanks for advises.


  2. #2
    Moderator Snoman's Avatar
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    CP..

  3. #3
    kimi's Avatar
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    Thanks, Snoman

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    SLASHER's Avatar
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    Quote Originally Posted by kimi View Post
    Hello, guys. I have Sea Doo RXP 2006 year. I have made some mods: Rotax racing camshaft, Rotax racing ECU, ported head, Riva 50lb injectors, ET68-140 XLE S/C, custom made intercooler, BEGI 2025 FPR. Now I'm using PROX big bore 100.5mm pistons kit, but I'm not very happy about this kit. Which pistons are better for my Sea Doo: Wiseco or CP? Or maybe stock pistons? Thanks for advises.

    What is wrong with your PROX pistons ? I Been running for year with no problems ?

  5. #5
    Orlando Shark's Avatar
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  6. #6
    Wiseco and prox are the same forgings

  7. #7
    kimi's Avatar
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    Quote Originally Posted by winterstick View Post
    Wiseco and prox are the same forgings
    Wiseco are the forgings, Prox is not.

  8. #8
    kimi's Avatar
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    Quote Originally Posted by Shark View Post
    I need 8.4.1 big bore 100.5mm pistons kit

  9. #9
    kimi's Avatar
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    Quote Originally Posted by SLASHER View Post
    What is wrong with your PROX pistons ? I Been running for year with no problems ?
    I think compresion is to low and oil rings are working bad because I see oil in my spark plugs. My engine compresion is 8psi is it normal?

  10. #10
    SLASHER's Avatar
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    Pro X are forged pistons they use the same technique as man made diamonds ... Few guys here are running big boost and no problems ...

    None of have oil on plugs , what was your piston to bore ?

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