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Thread: MEFI Controller

  1. #1
    New Member Fran D's Avatar
    Join Date
    Aug 2006

    Default MEFI Controller

    Does anyone know if there is a way to reprogram the MEFI controllers that come with the GM Ramjet systems? I don't even know if these controllers are flashable. My friend has a 502 Ramjet where the rev limiter is set at 6000 RPM. It's making it difficult to make any power, to say the least. Any information is appreciated.

  2. #2
    Lifetime Member GMPX's Avatar
    Join Date
    Apr 2003


    Pretty sure whoever sells them sells the software to tune them too.
    Sounds crazy but try a marine performance shop.

    I no longer monitor the forum, please either post your question or create a support ticket.

  3. #3
    Lifetime Member emarkay's Avatar
    Join Date
    Apr 2003
    Early EFILive V5 user - Upgraded from AutoTap for DOS!
    2000 Chevrolet Camaro Z28, A4 - For occasional day trips...
    1984 Chevrolet Caprice Classic - For the family...
    1989 Honda VTR250 - For me and me only...

  4. #4
    Lifetime Member ChipsByAl's Avatar
    Join Date
    Feb 2006


    These guys can program it for you.
    "Trash that carb and get Injected!"

  5. #5
    Lifetime Member
    Join Date
    Apr 2003


    I have done a few offroad buggys using the UMI RACING interface for them

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