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  1. #1

    Vtech 50 RPM 8650

    I have rxp 07 im gonna rebuild da engine and install riva valve train. Thinking to re flash ecu with vtech 50 rpm 8650. I have RRFPR already installed. I don't know do I still need it or I should remove it.
    This my step up

    Efficient fizzle intercooler
    ET 137 4mm
    48s injectors
    Riva valve train
    Fizzle air filter 4in
    15/19 3 blade
    Enginge breather


  2. #2

  3. #3
    GasResearch-VT.SE's Avatar
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    Leave rrfpr and run static stock pressure

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  5. #4
    Do u mean I keep it installed?

  6. #5
    can you log your afr?
    if so you can easy see if you need to ad or remove fuel from your tune.
    The same tune will not give same results on different skis.

  7. #6
    wotxxxsd's Avatar
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    May 2012
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    Any time you spin these motors higher than stock rpms its safest to monitor your fuel system..

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