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  1. #1
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    Rotax Racing ECU on a T-X???

    I'm trying to decide what my next upgrade will be. I already have all the R&D performer kit stuff on my boat, and am seeing 72 to 73mph consistantly in the heat.
    My question is; is anybody running one of the two ECU upgrades from Rotax on the X boats yet??
    Do I have to run the lightened valve train and bigger injectors if I go with the non racing ECU upgrade??

    How much performance/speed will I gain with the racing ECU, and the non racing ECU??

    I'm trying to decide if I want to just spend the $1600 plus for the racing ECU, get the lightened valve train, bigger injectors, etc., now, or try the lesser version of the upgraded ECU first, then decide if I want to spend the addional $1000's of dollars.

    I'd like to be able to get much quicker acceleration(its already brutal), and I would like to see consistently 75mph-at least with-with a full tank of gas at 116deg f.


  2. #2
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    After turning 82.8 on Jesse's boat this weekend in 18" of water with 90 degree water/95 degree air temp..I'm convinced the 8800 rotax ecu works well.

  3. #3
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    Quote Originally Posted by Alex13 View Post
    After turning 82.8 on Jesse's boat this weekend in 18" of water with 90 degree water/95 degree air temp..I'm convinced the 8800 rotax ecu works well.
    Is that the Racing ECU, or the Pro series?? Was Jesse's boat a T-X or P-X??

  4. #4
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    Quote Originally Posted by iflyems View Post
    Is that the Racing ECU, or the Pro series?? Was Jesse's boat a T-X or P-X??

    Just an RXP..No X.. I don't know exacty what it is to be honest, i would guess the Racing ECU. 8800 RPM rev limit

  5. #5
    Quote Originally Posted by iflyems View Post
    Is that the Racing ECU, or the Pro series?? Was Jesse's boat a T-X or P-X??
    2007 rxp

  6. #6
    TERRY bigbuck12345's Avatar
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    Quote Originally Posted by iflyems View Post
    Is that the Racing ECU, or the Pro series?? Was Jesse's boat a T-X or P-X??
    JESSE'S IS THE 8800 RACING ECU I RAN IT AT MUDBUG AND I SAW 8660 -8680

  7. #7
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    That's cool. But I'm looking specifically for people that are using these on X boats.

  8. #8
    mtrager's Avatar
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    Quote Originally Posted by Alex13 View Post
    After turning 82.8 on Jesse's boat this weekend in 18" of water with 90 degree water/95 degree air temp..I'm convinced the 8800 rotax ecu works well.

    His ski sounded different than yours also Alex.

  9. #9
    Quote Originally Posted by iflyems View Post
    Is that the Racing ECU, or the Pro series?? Was Jesse's boat a T-X or P-X??
    Jesse's ECU is 08 Rotax Racing Full race version 8800rpm designed to work on RXP-X/RXT-X.

  10. #10
    SHO stopper palmbeach jesse's Avatar
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    Quote Originally Posted by RXP6 View Post
    Jesse's ECU is 08 Rotax Racing Full race version 8800rpm designed to work on RXP-X/RXT-X.
    Yeah, what he said....^^^^^^^


    Shhhh, Thats my mechanic.

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