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  1. #1
    tpd's Avatar
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    8200 RPM, only 57.5 MPH

    Stock 2005 RXP. On nice calm water yesterday I was only able to get 57.5 MPH on my GPS, but I'm turning 8200 RPM.

    Does the prop and wear ring make this big of a difference? I'm thinking I'm about 10MPH slower than I should be.

    What else should I be checking?

    Here's what my set up looked like when I pulled it off last week.

    Click image for larger version. 

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  2. #2
    shrabber's Avatar
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    yes take a feeler gauge go around whole prop from the picture it looks alright some scratches make sure you dont have deep grooves (not good eyes either), Make sure prop spins freely check your carbon ring while your at it also make sure your hoses are all tight. If it was me I ditch that prop and get a solas

  3. #3
    b_dolla44's Avatar
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    If your turning 8200 rpm your on the limiter...
    Id be willing to bet thats not the stock rxp prop...sounds like it may be a rxt prop...

  4. #4
    Focker Foggy's Avatar
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    Rpms way up, speed way down....
    I'd bet you are cavatating horribly.
    1. wear ring damage. cavitation
    2. impeller damage. cavitation
    3. carbon seal bad. sucking air. cavitation

  5. #5
    tpd's Avatar
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    What exactly is cavitation and what are the signs I'd hear\notice??

  6. #6
    NJ -> MD Jet ski trip fuel mileage champ carguy89's Avatar
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    Quote Originally Posted by tpd View Post
    What exactly is cavitation and what are the signs I'd hear\notice??
    Overrevving, tougher to come on plane, slower acceleration/top speed. You'll usually see the pump kick out more water behind you than normal at each speed too.

  7. #7
    tpd's Avatar
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    It is a dog out of the hole, especially coming out of a hard turn.

    What's a good prop replacement if I'm planning on sticking with a mostly stock set up?

  8. #8
    tempest.runner's Avatar
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    Quote Originally Posted by Foggy View Post
    Rpms way up, speed way down....
    I'd bet you are cavatating horribly.
    1. wear ring damage. cavitation
    2. impeller damage. cavitation
    3. carbon seal bad. sucking air. cavitation
    I'm so glad I opened this thread! I was having the same issue and I can't believe I didn't check this earlier!!

    My thread;

    http://www.greenhulk.net/forums/show...n-problem-rxpx

  9. #9
    2006 Turbo RXP boBO's Avatar
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    Pump shoe seal
    pull the shoe and re seal it

    and might be wrong impeller

  10. #10
    i had the same exact problem on a 07 rxp. same rpm, same mph. did a prop and wear ring, problem solved. put in a solas 14/19.

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