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  1. #1

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    2009 rtx-x 255 RPM

    Top speed 70.1MPH @8060 RPM 77 degree water.
    Just installed Gen 3 Intercooler and new wear ring.
    Super charger will get rebuilt at end of summer.


  2. #2
    alex29573's Avatar
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    So the gen 3 didnt give an rpm increase?
    8060 is what my stock rxpx runs

  3. #3

    Join Date
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    I changed my wear ring at the same my Rpms actually dropped from 8200 and my old stock intercooller started leaking so far like in really like the gen 3

  4. #4
    So you lost rpms by installing the gen 3?

  5. #5

    Join Date
    Aug 2011
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    I didn't lose rpm from the gen three it was from the wear ring now being more efficient and the water being warmer

  6. #6

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    What is the RPM Limiter set at for a stock 2009 RTX-X 255 ski?
    is it 8060 or 8250?

  7. #7
    Lightning1's Avatar
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    8250 hard limiter

  8. #8
    Bob 1tommygunner1927's Avatar
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    Quote Originally Posted by tricountytrail View Post
    Top speed 70.1MPH @8060 RPM 77 degree water.
    Just installed Gen 3 Intercooler and new wear ring.
    Super charger will get rebuilt at end of summer.
    Are you using the stock impeller? If so, take out 1mm from the trailing edge....you'll gain about 100 rpm, and a little speed too!

  9. #9

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    Aug 2011
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    Lockport, NY
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    Thanks for the input I will ride it the rest of the season, and try it with cooler temps if the rpm dosent come up I will try the impeller when I rebuild the charger.
    Running like a champ!!!

  10. #10
    Mod less, ride more! troyheb's Avatar
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    Quote Originally Posted by tricountytrail View Post
    What is the RPM Limiter set at for a stock 2009 RTX-X 255 ski?
    is it 8060 or 8250?
    8200

    If that 70.1 is with the stock unmodded grate, then your speed is pretty good.

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