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Thread: Lets talk RRECU

  1. #1
    Water4fire's Avatar
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    Lets talk RRECU

    RR reflashed ECU?
    Do you like it? Is it worth it?
    Can the new RR Impeller be run with it alone? Or 50lb injecters needed?

    I want to hit the 80 mark and am a little shy of 73 all the time now in 100degrees and a basic stgII with RRIC. But I think my 14-19r is holding me back.

    Would yall think that the New flasjh RRECU would work with 50lb injecters and Rivas new SCer?

    I ask all input as I am gonna pull the trigger on a new ECU Riva or RR, but I really want 80solid with a half tank of fuel...

    .


  2. #2
    Jarrett's Avatar
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    I'm a bigger guy like you and I'm at 75 MPH with the new RR ECU and RR SC impeller in the heat. I think you might be a little faster with the Riva IC than the Rotax, but to hit 80 in the heat you need to go into the engine, imo.

    I think Brendan was the only non EMS RXP to hit 80 at the Bug and he has the B Kit, 50lb injectors, RR cam, etc.

  3. #3
    Jarrett's Avatar
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    I forgot about Stan, but he has a lot of stuff too. Not to mention he weighs like a buck o five and knows how to ride a ski better than 99% of the people out there.

  4. #4
    Water4fire's Avatar
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    So the Riva Stg III probably wouldn't get me there either???

    Do I need bigger injectors? 42's or 50's?

    Thanks

  5. #5
    Jarrett's Avatar
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    Here's my latest numbers from the Bug with the mods I have. Keep in mind, I am just over 300lbs.

    Mods:

    Rotax Racing Reflashed ECU & IC
    Rotax Racing SC Impeller
    42lb injectors
    Riva High Flow Hood
    4inch intake direct to SC
    Riva Grate/Riva Pro OPAS B/Os
    Worx sponsons(down)
    PPG Power Pipe
    SS Wear Ring
    Rideplate holes filled
    Trimmed Reverse Bucket

    Date June 10th 2006
    Altitude: 0 ft. (Mudbug)
    Air temp: 95
    Water temp: 87
    Humidity: ?
    Fuel: 2 bar
    Oil: 1/2 on notch
    Prop: Green Hulk Solas 15/20 (de-ptiched)
    Max RPM: 8350 (8400 blip)
    Boost: Between 9.5-10
    Peak Speed: 75.6

    Right now everyone is saying you need the 42lb injectors with the RR SC Impeller to be safe. I don't know what the Riva will do. 80-81 sounds like a good guess to me for the Riva Stage3 numbers in good air with an average rider, but not with me on it and definitely not with me on it in the heat.

  6. #6
    Water4fire's Avatar
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    Ok, so I am looking for a 15-20 to depitch and not gonna do the RR new impeller yet. Keeping the original riva impeller and gonna go new RR ECU now. Wait for the Riva SCer and 50lb injecters.

    DID your new Flash Rip????

    Thanks for taking the time to post. Lot of readers and no one posting ...

    LOL.

  7. #7
    Jarrett's Avatar
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    I feel like I gained 1.5-2 MPH with the reflash. Felt like some midrange as well. I felt like it was a good, easy gain for the price Mark charged.

  8. #8
    Water4fire's Avatar
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    Sounds great...

    CaN'T WAIT...

    Did you sell your Riva Tube???
    If not I need it for my wifes RXP... :P yea, I bought it for her.
    She was pulling 69's with a 1/3 tank easy....

    .

  9. #9
    Moderator two2curupt's Avatar
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    I agree I found a pretty good acceleration difference with the re-flash ecu

  10. #10

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    Austin, which RR ECU you are gonna buy, the (4501) or the (4502)?? before you buy one "REMEMBER" what i told you in my PM

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