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  1. #1
    somefun's Avatar
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    May 2006
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    RR ECU 4501 HP??

    Does anyone know how much HP a 4501 ECU makes on a 185HP motor? I was told 40HP.


  2. #2
    when used with a 60 psi fuel regulator the 4501 ecu adds 40 hp to the 185 engine. damn good bang for the buck.

  3. #3
    GTXX's Avatar
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    Jan 2006
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    now that is simply amazing! 40 hp bumps it up to 220-225? freakin bargain...

  4. #4
    actually it bumps it up to 210 hp. the 185 rating is not quite accurate in the real world . the dyno disagrees with the brochure.

  5. #5

    Join Date
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    Smith Lake Alabama
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    Rotax racing, how many HP does it add to 215 hp rxt? Or 208 hp rxt, lol

  6. #6
    it adds 40 hp as well to your "195" hp rxp with the addition of an external intercooler.

  7. #7
    Yuji's Avatar
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    Prince Albert Saskatchewan, Canada
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    I'm hoping one of those ecu's falls out of the sky and into my lap...wouldn't that be swell

  8. #8
    Vern's Avatar
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    I have a 4501 RR ECU for sale, never used, latest reflash, save $250, $1100 shipped.

  9. #9
    David 1 FAST VE's Avatar
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    Does anyone(RR) know the differance between the RR and the new Riva???

    $999 plus a GreenHulk Discount sure sonds good compared to the $1350 unless the RR is twice the ecu that Riva's is?

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