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  1. #1
    Senior Member watermedic's Avatar
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    a few results after modifications

    Finally got a chance to run the ski this past weekend. Due to poor weather and water conditions I didn't have a chance to do several runs. No records here, just thought I would share some numbers.

    2004 RXP with 180 hours.
    Riva air intake
    Riva top loader intake grate
    Vortech SC impeller
    RR HD shaft and clutches
    RR intercooler and plumbing
    RR thru-hull exhaust
    RR ECU (racing version)
    Solas 14/19 with Jerry's "wrench job"
    Fresh wear ring
    Denso plugs
    Ride plate holes filled

    1 bar below full of last years stabilized gas. Water temp was 60 and air temp was 70. Leaning on handle bars-no superman. Rider weight 220.

    I had two passes at 74.4 mph at 8300-8350 rpm's (Garmin e-trex GPS). Couldn't run much more due to high winds. Very happy with results. It would have been nice to have added the last few parts seperately and done testing, but when all the stuff was in front of me, I HAD to put them on.

    Hole shot is outstanding, pulls VERY hard throughout. Figure I may gain a little with only a couple bars of fresher fuel.

    Think this sounds about right?


  2. #2
    ramnj's Avatar
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    Sounds like great speed numbers, specially with the weather conditions you describe.

  3. #3
    Site Admin Green Hulk's Avatar
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    awsome!

  4. #4
    Water4fire's Avatar
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    Thanks for posting this as that is the same setup I am going for. Just need the RR ECU.

    Awesome.

  5. #5
    Greg, good job man!...PR...

  6. #6
    Senior Member watermedic's Avatar
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    Thanks.
    I'm very pleased with the results. Going to try the 15/20 when the funds become available

    I do love the sound with the RR exhaust.

  7. #7
    Jarrett's Avatar
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    Nice results. Is that the reflashed RR ECU? And do you know what pitch your prop has?

  8. #8
    rxpblast's Avatar
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    great numbers, thanks for sharing ur results!

  9. #9
    Senior Member watermedic's Avatar
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    It's the new version ECU, not a re-flashed one. Jerry knows the pitch on the prop.

  10. #10
    Jarrett's Avatar
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    Re: a few results after modifications

    Quote Originally Posted by watermedic
    1 bar below full of last years stabilized gas. Water temp was 60 and air temp was 70. Leaning on handle bars-no superman. Rider weight 220. 74.4 mph at 8300-8350 rpm's
    Think this sounds about right?
    We have the same setup it sounds. I weigh about 90lbs more than you and I'm running a 14/20 repitch prop. In that air and water temp, I was running 8400 RPM at 76+ MPH in minor chop in the crouch position. Depending on your pitch, I would think you would be a little faster given the weight difference.

    What's your elevation there, what was your trim setting and what do you meaning leaning on the handle bars? I would guess your best speed to be found by getting some semi smooth water, putting the trim on one click above middle, and either getting back into a crouch or superman position. Having the weight on the bars is kind of like trimming down and will slow you down on smoother water.

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