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Thread: rrfpr question

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    rrfpr question

    What will the rrfpr do. Does it boost performance. I currently have an 05 rxp with riva stage 3 with an X supercharger. Is this something I should get. Also, whats the deal with the catch can. Would you recomend it.


  2. #2
    QATAR RXP TEAM qatar2000kk's Avatar
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    Quote Originally Posted by aviator921 View Post
    What will the rrfpr do. Does it boost performance. I currently have an 05 rxp with riva stage 3 with an X supercharger. Is this something I should get. Also, whats the deal with the catch can. Would you recomend it.
    If you are Running RIVA ECU with 50lb injectors you won't need this rrfpr to regulate your fuel.... if you are using Rotax Racing ECU then you need 42lb injectors with the rrfpr ... you should get the original one our and place the RUDE or Parana brand rrfpr and the pressure hose should placed in the intake block off hole. its a device pressure sensitive regulate the fuel do to SC pressure.

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    kp04rxp's Avatar
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    check this link out, there are a bunch of different situations where a rrfpr is necessary or nicer to have. I am running a riva ecu and 50# injectors and a rrfpr was necessary for me because I was running in colder weather..

    http://greenhulk.net/forums/showthread.php?t=55994

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    Site Admin Green Hulk's Avatar
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    a rrfpr does not boost performance. It ensures you maintain a proper AFR ratio when you exceed the fueling capabilities of your injectors.

    It increases fuel pressure as boost increases which will force more fuel thru the injectors.

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