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Thread: Rxp-x bucking?

  1. #1
    NOONZ's Avatar
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    Question Rxp-x bucking?

    Hey guys,

    I know this is a very common subject for alot of us, in particular p-x owners. My question is, as im hovering around the 80mph mark now its in the back of my head in a BIG way, i want to hear from anyone who has personally been bucked and if you could list your setup when it bucked would be great!

    Cheers.


  2. #2
    MSRXP's Avatar
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    Around 80 you need a pump relief setup in a bad way. Contact Duke and he will get you a setup.

  3. #3
    ksalles's Avatar
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    Fastest I went was right over 80mph...you can see in this video what starts happening. Perfectly calm water and the rear of the ski starts to lift and shake side to side. I never did the relief because I ended up selling the ski. I definitely suggest some type of relief on an X boat running over 80mph, or even close to it for safety concerns for that matter.

  4. #4
    MSRXP's Avatar
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    For the record.... It's not fun...

  5. #5
    Having Fun jp1300r's Avatar
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    Stuff/buck left lane at about 1:24.

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    MSRXP's Avatar
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    It is even worse when you are on it. It feels like someone picks up the rear of the ski and shakes it around. Not fun.....

  7. #7
    MSRXP's Avatar
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    Spend the 150 or so and get Duke's setup. He will take care of you....

  8. #8
    szt8b7's Avatar
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    My set up is similar to yours minus the ECU and I was running a worx grate. Bucked at 79mph WITH two pressure relief valves. The worx is off and trying a R&D this week weather/time permiting. I'd get some tunnel relief on yours soon, as stated earlier, it aint fun!

  9. #9
    MSRXP's Avatar
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    Quote Originally Posted by szt8b7 View Post
    My set up is similar to yours minus the ECU and I was running a worx grate. Bucked at 79mph WITH two pressure relief valves. The worx is off and trying a R&D this week weather/time permiting. I'd get some tunnel relief on yours soon, as stated earlier, it aint fun!

    The R&D is the better grate for your boat. The worx is not meant for speed, just for rough water handling. It shoves more water into the pump tunnel to keep you hooked up to the max. The R&D is the faster grate for your ski. Also, it will eliminate that stuffing issue you are having at 79.... Especially with the two relief valves... What valves do you have now? What is the cracking pressure? Usually in the larger pump tunnel when you start to see pressure above 60-61 psi you will get stuff. Your valves need to be large enough to keep that pressure down. Make sense?

  10. #10
    NOONZ's Avatar
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    Cheers for all the replies, will get in contact with duke! Are the pressure relief valves hard to install? Any loss in acceleration?

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