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  1. #1
    is thinking. grantuk's Avatar
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    RXP pump extension for CC racing...

    Is anyone using a pump extension on their RXP for CC racing?

    Apart from the obvious increased hook-up in chop what other characteristics are you experiencing?

    Thanks


  2. #2

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    I have a 06rxp to make this short answer to your question.Love take off hook up .lost speed with out the wedge.found no better hook up racing friend across the lake semi chop water. his ski 04 rxp 70mph GPS Mine 77mph Gps verry hard to pass hin due to becoming un hook

  3. #3
    YAMAPRO's Avatar
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    For cc racing you need to ask on the other site pwctoday.com

  4. #4
    suck my wake's Avatar
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    Quote Originally Posted by seawoolf View Post
    I have a 06rxp to make this short answer to your question.Love take off hook up .lost speed with out the wedge.found no better hook up racing friend across the lake semi chop water. his ski 04 rxp 70mph GPS Mine 77mph Gps verry hard to pass hin due to becoming un hook
    You probably didn't have your trim adjusted properly, this is a very important step, if its not adjusted 2" longer than "STOCK" you will not see the posted gains. With or without the wedge you need to make sure your trim is adjusted accordingly. 2" longer than stock and no more!!!!!!!!!

  5. #5
    JSR Brad Clarke's Avatar
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    I have run pump extension on RXP & RXP-X
    Found better hookup, 1.5 -2.0 mph on top end on RXP and 1.0mph on X
    Better holeshot - I highly recommend

  6. #6
    SeaGoat's Avatar
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    Everybody that's posted on here concerning the use of a pump extension has been absolutely delighted and impressed with the improvements in hookup and speed gain. It's a very expensive mod but this is the first time I've ever heard anyone complain about hook up that was using it. If you ride big water, lakes or ocean, then this is the mod for you. All the horsepower and rpm in the world won't amount to jack if you can't translate it into thrust. PM skoepp about how his RXP changed personality's with the addition of a pump extension in rough water.

  7. #7
    Site Admin Green Hulk's Avatar
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    The pump extension is by far the best thing you could ever do to your RXP.

    Someday they will come stock with them

  8. #8
    JD 1's Avatar
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    Quote Originally Posted by Green Hulk View Post
    The pump extension is by far the best thing you could ever do to your RXP.

    Someday they will come stock with them

  9. #9
    Big K's son KeithKman's Avatar
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    Quick question, why with the Riva kit does it require a longer different wear ring when other companies have kits that use the stock ring?

  10. #10
    Site Admin Green Hulk's Avatar
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    Quote Originally Posted by KeithKman View Post
    Quick question, why with the Riva kit does it require a longer different wear ring when other companies have kits that use the stock ring?
    Less chance of an air leak/cavitation this way. With a stock sized wear ring you have two sealing points...one between the pump and extension and another between the extension and shoe. With one long wear ring you eliminate that possibility. The Riva kit is a much better design. Of course i may be a bit biased as i helped design it


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