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Thread: rxp x rpm

  1. #1

    rxp x rpm

    Hello everyone, I have found the right impeller for my rxpx, r&d grate, RIVA Performance Power Filter,15/20 solas concord impeller 8100 rpm 74 mph. but with the 15/22 went to 7700 rpm. there is something that goes to my rxpx nn?


  2. #2
    Antiguan FZR's Avatar
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    How many hours? Check your S/C slip. What nozzle are you running?

  3. #3
    the bike has 80 hours but I mounted the s / c new 20-hour

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    fh23rxp-x's Avatar
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    Quote Originally Posted by gacimar View Post
    the bike has 80 hours but I mounted the s / c new 20-hour

    is the 15/22 stock or has been pitch

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    Quote Originally Posted by fh23rxp-x View Post
    is the 15/22 stock or has been pitch
    I'm wondering too... you see the mods in my sig...

    8160 @ ~74.2mph (GPS) early spring/fall
    8080 @ ~73.5mph (GPS) middle of summer

    I have a stock 15/22R. Think I need a nozzle.

    Sorry... point is, I think that 15/22R you have is bent (re-pitched)... either that or you're down on power. With the speeds you are running, I don't think it's power.

    -=Mike G.

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    fh23rxp-x's Avatar
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    Quote Originally Posted by Mikey G. View Post
    I'm wondering too... you see the mods in my sig...

    8160 @ ~74.2mph (GPS) early spring/fall
    8080 @ ~73.5mph (GPS) middle of summer

    I have a stock 15/22R. Think I need a nozzle.

    Sorry... point is, I think that 15/22R you have is bent (re-pitched)... either that or you're down on power. With the speeds you are running, I don't think it's power.

    -=Mike G.

    Yeah check that prop and check the pitch ..


    Anyways mike I put the stock Rxp 215 nozzle is a 82 mm I think . And it made a huge difference it gave around 150-200 rpm gains I think

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    FrankieV123's Avatar
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    Quote Originally Posted by fh23rxp-x View Post
    Yeah check that prop and check the pitch ..


    Anyways mike I put the stock Rxp 215 nozzle is a 82 mm I think . And it made a huge difference it gave around 150-200 rpm gains I think
    I dont think a smaller nozzle gains RPM.. you lose RPM with a stock RXP nozzle on a RXPX...

  8. #8
    richrxp's Avatar
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    Quote Originally Posted by FrankieV123 View Post
    I dont think a smaller nozzle gains RPM.. you lose RPM with a stock RXP nozzle on a RXPX...
    You will loose rpm's,and holeshot with smaller nozzle.

    rxpx nozzle = 87 mm
    rxp nozzle = 83 mm

  9. #9
    fh23rxp-x's Avatar
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    Quote Originally Posted by FrankieV123 View Post
    I dont think a smaller nozzle gains RPM.. you lose RPM with a stock RXP nozzle on a RXPX...


    Yeah sorry frankie i got a little confuse ...my bad!!!!!! yeah you lose rpms. what u mean to say is that u gain mph .. i am sorry for the topic confusion

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    Quote Originally Posted by fh23rxp-x View Post
    Yeah sorry frankie i got a little confuse ...my bad!!!!!! yeah you lose rpms. what u mean to say is that u gain mph .. i am sorry for the topic confusion
    YEAH!!! YOU SCREWING ME UP! Just kidding, yeah I follow.

    It looks like it's gonna be RXP nozz for spring/fall and just swap it back (takes 10 minutes) for summer temps. I'd like to see 75mph at least once if I can.

    -=Mike G.

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