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  1. #51

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    My 13/15 has balance holes in the hub…anyone else?


  2. #52
    Norm37's Avatar
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    Would you Mind showing us what those balanced holes look like? Thanks

  3. #53

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    Quote Originally Posted by Vman View Post
    Thanks for the info and please keep us posted. I think mine is pretty slow too. Intake and 8500 tune also.

    I ran 8200, 78 on dash, 76 gps, pretty low on fuel, trim way up. That was in hot weather at a bit of altitude (300'). I feel that in better weather @ sea level (where I usually run) I will be very close to the limiter.
    Mine is gonna need a bit of help to see 80... Hoping this new prop will help.
    Ran today, full tank, belly full from lunch, 8200 occasionally saw blip to 8300. I"m guessing higher 82XX range. 77 one way 75.68gps, 78(blips to 79) 76.47 gps the other. 5-60 3.7X seconds. 82F water, 80air, salt water....stock prop

  4. #54
    This is how I run a jetski shop in the desert nmpeter's Avatar
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    Quote Originally Posted by DinoMite View Post
    My 13/15 has balance holes in the hub…anyone else?
    nope, not on the one I showed..must not be much of a "lemon" then eh?

  5. #55
    DR2006RXP's Avatar
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    Quote Originally Posted by DinoMite View Post
    My 13/15 has balance holes in the hub…anyone else?
    X2

  6. #56

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    Quote Originally Posted by nmpeter View Post
    look what happens when you don't buy your prop from Jerry rather unfortunate name for somebody in the Quality Control department:

    THAT is friggin PRICELESS!!!

  7. +1 by:


  8. #57
    ptscon's Avatar
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    So the weekend is over, who has some data to show how this impeller performs vs stock or 13/18

  9. #58
    moparguy's Avatar
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    Quote Originally Posted by ptscon View Post
    So the weekend is over, who has some data to show how this impeller performs vs stock or 13/18
    Mines racking up those air miles still

  10. #59
    Quote Originally Posted by jeff24680 View Post
    Super excited for the results as he did what I was planning to do with my OEM impeller taken off my old RXT. He didn't get expected results so this will likely make my decision for me.
    So, with new impeller 13/15 it hits 8200 rpm and 74 on the dash. It was mid to low 80’s with low humidity in the DFW area. So I dropped 200 rpm but gained +2 mph. Which is still lower than a stock impeller and scom. Yet it is running the stage 2 8500 aggressive throttle response riva tune. New impeller, new wear ring, intake, catch can, intake girdle. Granted it was a full tank and I am 215lbs but it should be doing better than this. Nothing wrong with the pump, using the riva pump gasket. Nothing causing drag with the hull that I can see. I am getting the correct rpm so the temps should not be the issue.

  11. #60
    DR2006RXP's Avatar
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    Great news! The new 4 blade impeller for the 2021 RXP-X is now available.

    I tested this prop back to back on a 21 t with a 21 p prop did about 10-15 minutes of ridding around , top speed 85 at 9k vs my p stock props 88-89 at same 9k any one interested in a new used prop $50 cheaper than retail.
    Last edited by DR2006RXP; 09-28-2021 at 03:45 AM.

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