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  1. #1
    smkondwtr's Avatar
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    OVER STUFF SOLUTION - PRESSURE RELIEF VALVES v. LARGER PUMP

    Aside from the cost differences, what are the advantages/disadvantages to either over stuff solution? I'm assuming a larger pump is also a solution.


  2. #2
    Got Boost? psycho rxp's Avatar
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    Quote Originally Posted by smkondwtr View Post
    Aside from the cost differences, what are the advantages/disadvantages to either over stuff solution? I'm assuming a larger pump is also a solution.

    You should not be running an 81mm nozzle,without some sort of pressure reliefs ,on An X boat !!

  3. #3
    Mod less, ride more! troyheb's Avatar
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    Quote Originally Posted by psycho rxp View Post
    You should not be running an 81mm nozzle,without some sort of pressure reliefs ,on An X boat !!
    Big +1 on that. Smallest you should go is 83mm.

  4. #4
    smkondwtr's Avatar
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    Thanks guys, I'll make the switch to the 83mm ring. However, does a larger pump have advantages over a valve (Duke) type PRS?

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    Mod less, ride more! troyheb's Avatar
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    It would seem like it would, but I would wait for the experts to chime in.

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    Moderator beerdart's Avatar
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    The bottle neck is the tunnel not the pump.

  7. #7
    dnielsen's Avatar
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    Its a combination of the bigger tunnel scooping more water and over pressureing the pump. I would think that a larger pump would help a bit but would never run an X at higher speeds without the PRVs installed. No smaller than an 83mm nozzle for sure. The R&D grate has also been proven to be the safest grate as well.

  8. #8
    suck my wake's Avatar
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    Quote Originally Posted by beerdart View Post
    The bottle neck is the tunnel not the pump.
    The bottle neck is certainly not the tunnel on a P-X, it has the largest tunnel of the "P" ski's and can definately flow the most water. The pump and nozzle are the restriction and it is most definately the worst when you run a nozzle smaller than 83mm. A larger diameter pump (160,162mm) will definately help but I would still go with relief valves as well. The pump option is the more expensive way to go but it will definatly yield results

  9. #9
    szt8b7's Avatar
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    I would think the larger pump would help by processing more water. Then you are into higher speed and more water being scooped into the tunnel and it starts again. The PRV don't take anything away at any speed, are pretty cheap and not that big of a deal to install so why not use them?

  10. #10

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    take the wedge out the higher the nose rises the faster it falls.

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