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  1. #1
    Steve STSPERFORMANCE's Avatar
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    08 RXTX ECU holds back until certain hours?

    Do I remember reading somewhere that the ECU on the 08 RXT X is designed to hold back until certain hours are reached on the ski?

    Have just under 2 hours on mine, breaking in as per Jerry, and am wodering if mine will open up more. Right now feels alot like my 07 RXT.

    Thanks for the info. everyone!!


  2. #2
    I hate things that don't work! SearayEX12's Avatar
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    Yeah the ECU holds the engine back for the first few hours and slowly opens up. You'll feel it really start to open up around five hours and it will continue to open up a little farther right beyound 10. I'd say 5 is the most dramatic though.

  3. #3
    I'm kind of a big deal SeanCucf's Avatar
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    I don't think anyone actually KNOWS if the ECU holds back for 10 hours or not....highly suspected, but I don't think anyone has actually presented credible evidence to the contrary.


    I could be (VERY) wrong, but I think it's just an internet rumor.

  4. #4
    shhr's Avatar
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    where is the thread with "Jerrys breakin"

  5. #5
    I'm kind of a big deal SeanCucf's Avatar
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    dunno...but the quickest way to get an answer is to be wrong....

    people LOVE to correct you....figured I'd take one for the team

  6. #6
    West Texas RXP skoepp's Avatar
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    Quote Originally Posted by STSPERFORMANCE View Post
    Do I remember reading somewhere that the ECU on the 08 RXT X is designed to hold back until certain hours are reached on the ski?

    Have just under 2 hours on mine, breaking in as per Jerry, and am wodering if mine will open up more. Right now feels alot like my 07 RXT.

    Thanks for the info. everyone!!
    My T-X ski max rpm were 7,780 to 7,800 rpm for up to 4 hours showing. Next time out ran 200 rpm more right away. Something definitely changed rather it be braking in or ecu. That happened right away before it got to 5 on ski so maybe it just set and decided it was time. I think was the 3rd or 4th time out.
    I havn't noticed as big of a difference since then and she shows 11 hours and should be close 12 hours. I also started jacking with the prop to get to 8,100 rpm and as it turns out I was tuning it out of its max power range.
    I will say every time i get on the ski it has impressed me more and more.
    Last edited by skoepp; 04-10-2008 at 08:55 PM.

  7. #7
    captain obvious Lurker's Avatar
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    People were saying this about the ecu when I got my 05, but I didn't notice anything. I think it is just the motor working in and loosening up.

    But I really wish someone with some contacts would get an answer straight from the horses mouth

  8. #8
    beachbum0286's Avatar
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    I think it is just a rumor, I got 8100 RPM's on my RXP-X within the first hour.

  9. #9
    David 1 FAST VE's Avatar
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    I think Shibbby posted once that it was true.
    It backed timing out until you hit 10 hours?

    Maybe he will chime in?

  10. #10
    West Texas RXP skoepp's Avatar
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    Quote Originally Posted by beachbum0286 View Post
    I think it is just a rumor, I got 8100 RPM's on my RXP-X within the first hour.
    sorry to get off topic but beachbum have you tried to put some pitch in your prop to get to 8,000rpm and see what happens. What would be cool with your rpms is a 85 or 86 mm ring.

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