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Thread: RXT 300 w/ mods

  1. #1
    dewreck978's Avatar
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    RXT 300 w/ mods

    What kind of mph have some of you seen with Power Filter, Exhaust and Maptuner vs ECU flash....My brothers RXP 300 did 81,79 on gps only mods was exhaust and power filter with JL performance flash..
    Last edited by dewreck978; 02-21-2017 at 08:16 AM.


  2. #2

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    Apparently the JL flash is better then the regular Vtech from what i've been reading. I had et135 wheel, filter, exhaust, waterbox, prop and tune and never got over 81 gps

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    I have the Riva stage 2 tune with Riva intake, Imuk, catch can and stock prop., stock grate. Last week on the Colorado river in Parker I hit 86 on the dash. Their was a 2 to 3 mph current on the river. These ski's love the cool air and water. Air temp was 78 and water 60. Will be going stage 3 soon. During the peak of the summer with the same set up the fastest I could do was 81 in October it was 83.
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    Quote Originally Posted by AZRIVERBOY View Post
    I have the Riva stage 2 tune with Riva intake, Imuk, catch can and stock prop., stock grate. Last week on the Colorado river in Parker I hit 86 on the dash. Their was a 2 to 3 mph current on the river. These ski's love the cool air and water. Air temp was 78 and water 60. Will be going stage 3 soon. During the peak of the summer with the same set up the fastest I could do was 81 in October it was 83.
    Stock impeller depitched im assuming?

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    dewreck978's Avatar
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    I'm hearing JL flashes and JP racing do better numbers was hoping to get some feedback on anyone using those flashes vs maptuner... Thanks for the input guys

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    dewreck978's Avatar
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    Quote Originally Posted by tomespo View Post
    Apparently the JL flash is better then the regular Vtech from what i've been reading. I had et135 wheel, filter, exhaust, waterbox, prop and tune and never got over 81 gps
    Your ski is nasty

  7. #7

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    Stock prop

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    mrsprinkles's Avatar
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    Quote Originally Posted by AZRIVERBOY View Post
    Stock prop
    That's crazy. I had stage 2 last summer with my stock prop pitched to 13/16.5 and only pulled 77 gps on an empty tank.

    I'm adding (90% finished) stage three at the moment so I hope to get at least 82 gps without needing to de pitch my prop more. Or add back pitch with the new sc impeller.

    What do you guys think?


    I'm 6' 200lbs.

  9. #9
    ABBOTT's Avatar
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    What is a JL & JP flash? Stock ECU?

  10. #10
    ptscon's Avatar
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    Quote Originally Posted by dewreck978 View Post
    I'm hearing JL flashes and JP racing do better numbers was hoping to get some feedback on anyone using those flashes vs maptuner... Thanks for the input guys
    Good bet they run more timing and/or leaner if they are getting better performance everything else equal.

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