Voltage data for stock AFM M20B25

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  • CarsSuck
    E30 Modder
    • Oct 2005
    • 968

    #1

    Voltage data for stock AFM M20B25

    Does any body have a voltage/rpm table handy? I'm going to modify the signal from an MAF from an e36 328i to match the AFM's in order to complete the swap.
    --Will
  • RobertK
    Kicked cancer's ASS.
    • Jun 2005
    • 5864

    #2
    Already tried to obtain this data the same way you are. The only person I could find that had it had lost it.

    Ely (rs4pro3) may eventually have the voltage data for the eta engine but basically you will need a SMT6 or similar piggy back to monitor the data.

    Comment

    • rs4pro3
      R3V Elite
      • Oct 2003
      • 5808

      #3
      ya all I know right now is at idle it's around .360 volts :D
      85 325e 2.7 ITB'd stroker

      Comment

      • mspiegle
        E30 Enthusiast
        • Oct 2003
        • 1026

        #4
        Originally posted by rs4pro3
        ya all I know right now is at idle it's around .360 volts :D

        Do you mean the MAF? My AFM was over 1v at idle. Very strange....

        Look for my writeup, its VERY easy to figure out a basemap to get the car working. Unless someone has spent an hour on the dyno tuning all the cells with a wideband, there isn't really a right answer yet.
        Michael Spiegle

        '01 Ford Escape / Daily Driver
        '99 M3 / Track Car
        '87 325is bronzit / wtf car
        '06 Daytona Triumph 675 / Daily Rider

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        • rs4pro3
          R3V Elite
          • Oct 2003
          • 5808

          #5
          no that's with the m20 eta afm.
          85 325e 2.7 ITB'd stroker

          Comment

          • CarsSuck
            E30 Modder
            • Oct 2005
            • 968

            #6
            what about just plotting it throughout the rev range to get a basic curve?
            --Will

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