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  1. #1
    captain obvious Lurker's Avatar
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    These rxp's hate the chop

    Today the lake was a little choppy, not so bad I couldn't go full throttle, but I couldn't get into superman and while my rpm's were at 8150 I was only hitting 65.something gps. I should be 70-71.

    You guys with the Skegs, do they help in the chop at all?


  2. #2
    Jarrett's Avatar
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    I'd go so far as to say my RXP loves the chop

  3. #3
    captain obvious Lurker's Avatar
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    Care to share what you have done?

  4. #4
    Jarrett's Avatar
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    Absolutely.

    Rotax Racing Reflashed ECU & IC
    Rotax Racing SC Impeller
    42lb injectors
    Riva High Flow Hood
    4inch intake direct to SC
    PPG Power Pipe
    SS Wear Ring
    Rideplate holes filled
    Trimmed Reverse Bucket

    These made the difference in chop:

    Riva Grate/Riva Pro OPAS B/Os
    Worx sponsons(down)

    Also, here's something I wrote in another thread about handling the chop on the RXP:

    Quote Originally Posted by Jarrett
    1-2 foot wind-blown white cappers aren't that bad. In fact, that's my favorite type of water to drag race in Being heavier than most, that's where I can use my weight to my advantage.

    If you've already got the Riva grate, get rid of the OPAS and stock sponsons. Put the trim at one above the bottom.

    When riding through the chop, stand up and put your feet towards the back of the ski on the inclined part of the foot wells. Sitting down and going fast in chop will just hurt your back. Distribute your weight about 65% legs / 35% arms with your chest over the bars.

    Keep your knees bent and use your legs like shock absorbers. When the ski pops up from the chop, absorb it with your legs, and as quickly as you can, literally stomp it back down into the water. Sometimes you have to feather your throttle to get the pump to reengage with the water, but with the setup listed above it generally does a good job of rehooking on its own.

    Another trick to get your pump to settle into the water and hook up is to quickly switch weight between your feet to get the pump loaded. Think of doing a fast see-saw between your feet. Use this to break the porpoising rhythms that you can sometimes get caught into in chop.
    Keep in mind, your glass water speeds and chop speeds will always be greatly different. If you are running 65 consistantly in the chop, you can probably take down a lot of skis that would be faster than you on glass. Hope that helps.

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