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  1. #1

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    Help on Rotax Racing ECU identification

    All. I'm thinking of buying a Rotax Racing ECU. I have some questions on it before I pull the trigger. My ski is a 2004 and the ecu has been run on someone else's ski that is also a 2004.


    The sticker on the computer says "Dataset: #H3J66R2A".

    Research on green hulk shows a limiter of 8500 and 42lb injectors. Can anyone confirm?

    Does this one support DESS ? Will I need to program my key or will it work with any key without programming?


    Right now I run a Rude1 with 11 psi at 8100. I do have 42's and a RRFPR. This sounds like what I would need with my current setup and it will prob give me a couple hundred rpm. Will the extra rpm and boost force me to bigger injector needs?


    Also have read some threads about the Rotax Racing 4501 ECU. Is this the actual part number maybe? I saw some comments about the need to pair these with the throttle body. Can anyone clarify?


    Will this be plug and play for me or will I need to send it to Rotax for a reset?


    Thanks
    Last edited by TheBernards; 09-29-2013 at 08:48 PM.


  2. #2
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    Ask fizzle he's selling it or maybe Jerry can help you out. The rotax doesn't have knock control if I'm correct.

  3. #3

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    Quote Originally Posted by thatdude596 View Post
    Ask fizzle he's selling it or maybe Jerry can help you out. The rotax doesn't have knock control if I'm correct.
    Yep he pm'd me today. Thanks man.

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