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Thread: Ecu for X

  1. #1
    Live to RIDE. brendus's Avatar
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    Ecu for X

    why is the rotax racing ecu so much more$$$$

    what are the differences in ecu's (remapped, riva, rotax)?
    has anyone tried piranha parts reflashed ecu's???


  2. #2
    beachbum0286's Avatar
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    Quote Originally Posted by brendus View Post
    why is the rotax racing ecu so much more$$$$

    what are the differences in ecu's (remapped, riva, rotax)?
    has anyone tried piranha parts reflashed ecu's???
    +1 on the ECU reflash.

  3. #3
    Piranhas ecus are done by les cooke. go with les cooke parts and you will never look back. and you are in melbourne so its easy for you.

  4. #4
    JPR's Avatar
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    Quote Originally Posted by someanyung View Post
    Piranhas ecus are done by les cooke. go with les cooke parts and you will never look back. and you are in melbourne so its easy for you.
    totally agree. i have an 04 reflashed by les and luv it.

  5. #5
    Enufpwr's Avatar
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    ECU is next on my list of things to do so I would like to know the pro's and con's to each also.

    I'm kinda torn between the Riva or Rotax Ecu at the moment.

    I was thinking of going with a Rotax Ecu because of the 8800 rev limit which needs 60lbs injectors--- little more room on revs and injectors before leaning out compared to Riva = 8600rev limit and 50lb injectors. Then the price plays a huge roll in the decision. Also with Rotax you don't have to have dealer program the ECU via buds system and warranty isn't instantly voided like when you purchase the Riva ECU. Humm... Could care less about the warranty at this point, but will have to spend $50-$100 to have a dealer reprogram the Riva ECU for my ski.


    Not sure why the price difference in cost between the ECU's.

    Riva = $999 then add the greenhulk coupon= -10% on Riva products=$900
    Rotax = $1,650.00 no discount.

    $1650-$900=$750 difference which could be used for other go fast parts.


    Not sure which retards timming more or has more of an aggressive curve to it?

    I really don't want to send my ECU out to have it programmed to Piranaha so that's out of the question. With both the Riva and Rotax you get a new ECU and keep the old one.

  6. #6
    CC Racer kenshin89's Avatar
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    I also got a 04' RXP ECU reflashed for my X by Les. For racing if I had the money I would of just bought the autronics, but for the money getting the ECU reflashed was definitely worth it.

  7. #7

  8. #8

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    Enufpwr--The Rotax ECU is NOT boost sensitive--does not change fuel map---does not retard timimg when detonation is detected. One should run a rrfpr with the Rotax. Rotax is only 150 rpm more than the Riva. Might be a high price to pay for less engine safeguards using the Rotax.
    The Riva is the ticket for recrational riders.

  9. #9
    Enufpwr's Avatar
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    Quote Originally Posted by Sundance View Post
    Enufpwr--The Rotax ECU is NOT boost sensitive--does not change fuel map---does not retard timimg when detonation is detected. One should run a rrfpr with the Rotax. Rotax is only 150 rpm more than the Riva. Might be a high price to pay for less engine safeguards using the Rotax.
    The Riva is the ticket for recrational riders.
    Thanks I think I'll choose the Riva because of the safeguards. I honestly don't want to go past 8600rpm anyways since this is a rec ski.

  10. #10

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    ecu

    check with your dealer mine didnt charge me nothing to reprogram the buds system

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