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  1. #1

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    In search of 200 RPM

    Ok boys need some input here. Mods are in my signautre. Lake temp 73 outside temp mid 70's. Elevation approx 1200 feet.

    I have the entire stock air filter system gutted and my spectra filter actually sits inside the triangle shaped intake piece under the seat I am getting every bit of available air to the filter. I am pulling 8150 - 8200 out of the hole it loads the pump hard once the ski planes and pull is down to 7400 it slowly pulls back to 7850 and stays there. When its cold off the trailer it will flash. 7900 sometimes 7950 but once it heat soaks after a run or two I am constantly at 7850.

    Now is this about normal for my mods to need to tweak the prop for peak rpm? I have also boost leak tested and double checked all clamps hoses etc... I am either thinking I am missing something or its common to have to tweak the prop with my mods. Any input boys? Oil level was also double checked with boat leveled.


  2. #2
    2006 Turbo RXP boBO's Avatar
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    tweak the prop 1.5 mm

  3. #3
    Eric Ocman's Avatar
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    Have your throttle body modded by the member that mods them here.

    http://www.greenhulk.net/forums/showthread.php?t=95457

  4. #4
    Jarrett's Avatar
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    Pull that prop and send it to Erik at Speed Freeks Racing. Do a google search and you'll find the info.

  5. #5

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    I'm not really looking to do any further mods however the tb mod sounds good what is the cost?


    I am more curious if this is standard for my setup to require a prop tweak or if something is wrong with my ski etc.., I believe that's all she's got with that setup.

  6. #6
    Jarrett's Avatar
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    The fact it's hitting the rev limiter on holeshot might suggest your wear ring is shot and its cavitating out of the hole. Might need a new wear ring and a prop tweak.

  7. #7
    Eric Ocman's Avatar
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    Its in that thread. I think its about 150 Bucks. I will be doing mine over the winter for sure.

  8. #8
    Having Fun jp1300r's Avatar
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    If you are sure your ski is perfect for the mods you have, get the prop pitched for the r's you want. SCer slip good? Wear ring good? Prop undamaged?

  9. #9
    speedskixp's Avatar
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    I would expect to have to de-pitch a 15/20 for your set-up.

  10. #10

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    Quote Originally Posted by speedskixp View Post
    I would expect to have to de-pitch a 15/20 for your set-up.
    That's what I am thinking the ski is in tip top shape sc slip is right on,prop is brand new wear ring is also new clearance is less than the thickness of a sheet of paper between prop and wear ring. I just believe its a touch to much prop for my current boost/mods.

    Gonna pull the prop at season end (couple weeks) and have it tweaked.

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