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  1. #1
    Gus13letter's Avatar
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    Question RPM gains with Jim's plate???

    What RPM gains did you get out of Jim's closed loop plate? List if it was on an RXT or RXP.
    I know it has been good for about 1.5 MPH gain on an RXT, but I havent seen what RPM gains people have seen from it.


  2. #2
    formerly Gold06RXP Turbo Nick's Avatar
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    I don't think youll see any gains in RPM. I think you will see gains in speed at the same RPM though. It gets your hull out of the water more at a better angle making you more efficient.

  3. #3
    Focker Foggy's Avatar
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    I am curious about this as well. With the regular performance
    mods you get RPMs = More MPH
    So I wonder as well if you gain 1-3 mph as reported on
    an RXT then do your rpms go up 50-200 ???
    If so, then I'd have to repitch prop to get off rev limiter.

  4. #4
    ROTAX RACING performance
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    regular performance mods= engine mods= more HP= more RPM= more mph

    rideplate, pumpextension, intake grate,= hull mods= same RPM= more mph

    thats 90 % of the case

  5. #5
    Will work on YOUR ski for FREE! GeoRXT's Avatar
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    Quote Originally Posted by mrracing View Post
    regular performance mods= engine mods= more HP= more RPM= more mph

    rideplate, pumpextension, intake grate,= hull mods= same RPM= more mph

    thats 90 % of the case
    Yup

  6. #6
    Gus13letter's Avatar
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    Hmmm. Ok. I just though more hull out of the water less drag get more rpm. Thats good to hear cause I was looking to do this mod but thought I would have to repitch again, and didnt want to do that. Sounds like I will be getting this rideplate mod done soon. I have been thinking about it for quit some time. I just have not known anyone personally that has done it to have seen the actual gains. I cant wait!

  7. #7
    Nothin' better than Doo'in it! BigDaddyRXP's Avatar
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    Quote Originally Posted by Gus13letter View Post
    Hmmm. Ok. I just though more hull out of the water less drag get more rpm. Thats good to hear cause I was looking to do this mod but thought I would have to repitch again, and didnt want to do that. Sounds like I will be getting this rideplate mod done soon. I have been thinking about it for quit some time. I just have not known anyone personally that has done it to have seen the actual gains. I cant wait!
    Dude... I'd rather repitch you impeller 3 times... before pulling the ride plate

  8. #8
    Gus13letter's Avatar
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    Quote Originally Posted by bigdaddyRXP View Post
    Dude... I'd rather repitch you impeller 3 times... before pulling the ride plate
    And thats another reason why I havent done it yet. I am dreading that day.

  9. #9
    Nothin' better than Doo'in it! BigDaddyRXP's Avatar
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    Quote Originally Posted by Gus13letter View Post
    And thats another reason why I havent done it yet. I am dreading that day.
    See if Jim will do it attached to the ski

  10. #10
    Gus13letter's Avatar
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    Quote Originally Posted by bigdaddyRXP View Post
    See if Jim will do it attached to the ski
    Nope needs to come off to go to the machine shop. If I repitch the prop again I will do it since the pump will already be out. I just have to find a bottle jack. I am sure the one that is in the wifes Honda will work. There are some good threads on here how to take it out. Ohh, I am dreading the day when I pull it, then to reinstall it too. We put put our selves through so much hell some times........

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