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Thread: what impeller?

  1. #1
    johnboygtv's Avatar
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    Question what impeller?

    Hi Guy's

    what do you guy's think is the best prop for my ski? i have 96 gsx 787,with R & D f,a with rejet .R & D grate,R & D 85-87 nozzle.ive filled the ride plate bolt holes,but i havent tryed it yet,as the weather here is crap.im looking at more mid to top end.

    All the best john


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    96XPSS's Avatar
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    Hey John, welcome to GH.

    The R&D grate is scrubbing a lot of speed. The stock prop is going to yield the best top speed numbers, by going back to a stock grate shoud get you back in the 57-58 mph territory, although it should be more with the nozzles you are running. It all depends on the bottom hull condition.

    What max rpm are turning with your current setup?

  3. #3
    johnboygtv's Avatar
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    Quote Originally Posted by 96XPSS View Post
    Hey John, welcome to GH.

    The R&D grate is scrubbing a lot of speed. The stock prop is going to yield the best top speed numbers, by going back to a stock grate shoud get you back in the 57-58 mph territory, although it should be more with the nozzles you are running. It all depends on the bottom hull condition.

    What max rpm are turning with your current setup?
    Hi cheer's

    i havent tryed it with this set up yet, just with the rejet and r & d f,a's.
    was going out today but the battery was lowas ive bought the grate.could i mod it? or is it not wurth it?
    as for the hull.ive resprayed it and ive just filled the ride plate bolt holes and smoothed them.if the weathers ok tomorrow i will have another try and tell you what rpm's im doing.

    cheer's for your help
    john

  4. #4
    johnboygtv's Avatar
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    Quote Originally Posted by 96XPSS View Post
    Hey John, welcome to GH.

    The R&D grate is scrubbing a lot of speed. The stock prop is going to yield the best top speed numbers, by going back to a stock grate shoud get you back in the 57-58 mph territory, although it should be more with the nozzles you are running. It all depends on the bottom hull condition.

    What max rpm are turning with your current setup?
    Hi 96xpss

    sorry for the delay
    its reving just under 7000.i wanted to do a gps run,but was to choppey.can i mod the intake grate.or is it not werth it.but i do ride in the sea and not on lakes.ive smoothed the rideplate bolt holes
    thanks for your help.

    john

  5. #5
    96XPSS's Avatar
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    You are very close to perfect at that rpm. I'd try to GPS it, then try a stock grate and see how much more you get.

  6. #6
    johnboygtv's Avatar
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    Quote Originally Posted by 96XPSS View Post
    You are very close to perfect at that rpm. I'd try to GPS it, then try a stock grate and see how much more you get.
    Cool, i'll try this weekend
    thanks

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