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Thread: Quick question on Green tops

  1. #1
    Potential Tuner
    Join Date
    Jun 2010
    Location
    Spring Hill TN
    Posts
    7

    Quick question on Green tops

    I installed a set of used green tops in my 402 and I have question on the IFR Mod vs Volts table.

    I have Gregs DVD and injector data. I've changed the following tables as instructed on the DVD:
    Offsets vs Volts vs Vac
    Flow Rate vs KPA
    Short Pulse Adder
    Min Inj Pulse width

    I did not see anything on the DVD about the IFR mod vs Volts though. In searching the repository it looks like some are using a value of 1.00 across the table.

    Is it necessary to modify the IFR Mod vs Volts table? I'm just trying to make sure I have the correct injector values before I change my VE to try and minimize chasing my tail


    BTW I did search and have been working on this on and off for a few months now. Hopefully I'm headed down the right path with these and only have this one point of confusion.

    TIA

  2. #2
    Tuner
    Join Date
    Feb 2011
    Location
    Groton, CT.
    Posts
    74
    My understanding is that the offset vs volts vs vacuum is essentially doing the compensation. I'm not sure why the ecu has both tables, but I believe the 1 multiplier like stock is correct.

  3. #3
    Potential Tuner
    Join Date
    Aug 2011
    Posts
    2
    http://www.hinsonsupercars.com/Pics/...42GreenTop.pdf

    This might help you out this is for the 42lb green tops