Help with afpr!

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  • 3URO_BOY
    Advanced Member
    • Feb 2012
    • 183

    #1

    Help with afpr!

    So im trying to figure out what to adjust my bev auto adjustable fuel pressure regulator to. I have an 87' 325is 2.5l, with performance chip, 19lb injectors yellow top mustang, walbro fuel pump, performance headers, k&n box filter, magnaflow performance cat, and will most likely put the m30 afm, and the bev auto performance adjustable fuel pressure regulator. I know stock fuel pressure regulator runs at 38-39psi.
  • jlevie
    R3V OG
    • Nov 2006
    • 13530

    #2
    Stock fuel pressure is about 37psi at idle and 44psi off idle. With the changes you've made to the engine, you need time on a dyno with a wide band sensor to tune the engine for best operation.
    The car makes it possible, but the driver makes it happen.
    Jim Levie, Huntsville, AL

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    • digger
      R3V Elite
      • Nov 2005
      • 5928

      #3
      i would have just when to Squid and got a chip from him that way you dont need a AFPR.
      89 E30 325is Lachs Silber - currently M20B31, M20B33 in the works, stroked to the hilt...

      new build thread http://www.r3vlimited.com/board/showthread.php?t=317505

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      • 3URO_BOY
        Advanced Member
        • Feb 2012
        • 183

        #4
        Ok i guess ill try that out thanks. Dyno it is!

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