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  1. #1
    Fast & Loud meeper's Avatar
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    Question on Damage to Pump Support

    Those little viens in front of the impeller that are plastic actually on the ski, is it bad if they are all chewed up and gone now it looks like a round hole, should i replace right away or can i run till winterizing time...


  2. #2
    Got Boost? psycho rxp's Avatar
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    Those shark teeth in front of the prop, can be ground down completely, as some have done, and will be fine. The RXT's don't even have them.

  3. #3
    Moderator Snoman's Avatar
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    Meeper,
    Grind them out,all of them, if you leave any of them in there they will cause some cavitation.It isnt going to hurt anything by grinding them out.
    I had to grind mine out for similair reasons.NO performance lose..
    Grind them out and dont worry about replacing the pump shoe youll be
    good as new with out the shark teeth.You ll never know there missing.

    Snoman

  4. #4

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    Quote Originally Posted by Snoman
    Meeper,
    Grind them out,all of them, if you leave any of them in there they will cause some cavitation.It isnt going to hurt anything by grinding them out.
    I had to grind mine out for similair reasons.NO performance lose..
    Grind them out and dont worry about replacing the pump shoe youll be
    good as new with out the shark teeth.You ll never know there missing.

    Snoman

    im going to go with sno on this one,,

    did the same thing and no problems...

    just be carefull.....

    PS when i used a dremel tool didnt work very well...........but it got the job done

  5. #5
    HOSS's Avatar
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    Aren`t they there to actually help stuff the pump especially in ruff?

  6. #6
    Fast & Loud meeper's Avatar
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    thanks guys. im going to order a new prop and intake grate monday because my current prop is toast....i need a wear ring too..

  7. #7
    Moderator Snoman's Avatar
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    Meeper
    Now you have a excuse to start modding your ski..
    A 14/19 solas and a riva intake grate, your 1/2 way to a stage 1 RXP.
    Defininatly cheaper than replaceing with the OEM parts and you ll get better performance with them..Plus you get a discount if you buy them through Jerry's store....

    Snoman

  8. #8
    HOSS's Avatar
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    Question

    Just why are the shark teeth there to begin with then? What are the benefits of removal? Wouldn`t they also cause slight airation to get rpm`s up as well? I would love to here more on this.

  9. #9
    Moderator Snoman's Avatar
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    Hoss,
    I dont know why they are there.I had to take mine out .I sucked a rock
    and tore them up..Didnt feel like haveing to replace the pump shoe..As you
    know its a major pain in the ass...I cant tell any differance with or without them..I know I come unhooked at higher speeds but from what I have been reading that has to do with the OPAS ..The RXP is the only ski I know of that has those shark teeth...Im sure there is a reason for them being there And too I would like to here...

    Scott

  10. #10
    Vern's Avatar
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    Meeper, Hoss, I dremeled out those plastic veins in the spring and smoothed things out. I did this mainly for better access to lay in carbon fiber cloth and epoxy resin to reinforce my pump tunnel. As others have said the RXP is the only ski in existence that has these ... and I just don't know why they are there. But I can tell you that there are many of us who have eliminated them altogether with zero impact on takeoff, cavitation or top speed. My ski has great holeshot, hookup and top speed (best speed ever of 77.5 mph on GPS) with stock ECU and no pump support 'shark teeth'. I have wondered if they actually slow down the ski a little ... but I have no back to back tests to prove it. I don't want to imply to anyone that removing them is a performance mod, but if they ever get broke up, it will cavitate until you dremel them out, then it runs great again.

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