3.5" MAF to 3" Throttle Body?

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  • Adrian_Visser
    R3VLimited
    • Jun 2006
    • 2823

    #16
    You're in the wrong subforum. The miller MAF on an m20 gets rid of the barn door AFM. The MAF they sell with their 24v turbo kits is designed to go in a 3" intake tract.

    '89 Alpine S52 with goodies

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    • nwe30
      Grease Monkey
      • Feb 2011
      • 385

      #17
      Originally posted by Adrian_Visser
      You're in the wrong subforum. The miller MAF on an m20 gets rid of the barn door AFM. The MAF they sell with their 24v turbo kits is designed to go in a 3" intake tract.
      so...somebody with an m50 in their car wouldnt see any gains with a miller maf unless they're boosted?

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      • Tchao
        Wrencher
        • Apr 2007
        • 223

        #18
        Originally posted by nwe30
        so...somebody with an m50 in their car wouldnt see any gains with a miller maf unless they're boosted?
        Umm....the gains you will see is from the turbo

        A MAF is a MAF....like an O2 is an O2.

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        • jahnaboi
          E30 Mastermind
          • Oct 2006
          • 1742

          #19
          I thought the purpose of the 3.5" HFM was to monitor less air thus leaning out the car ever so slightly giving it an extra "umph?" It never was for volume/min gain.

          SINdelle:E36 M3 5-Lug | 17x8 & 17x9 BBS RS | S52/ZF | 2.93LSD/3.5HFM/24lb Injectors/C&S Chip[B]SOLD[B]

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          • ACHTUNG
            R3VLimited
            • May 2005
            • 2397

            #20
            Originally posted by jahnaboi
            I thought the purpose of the 3.5" HFM was to monitor less air thus leaning out the car ever so slightly giving it an extra "umph?" It never was for volume/min gain.
            Ahhh, this makes more sense if it's true.
            1989 US E30 Cammed S52
            Under Construction: 1983 Euro E28 Cammed LQ9/LS3 Heads/Jakeb E28 LSx Kit

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            • nwe30
              Grease Monkey
              • Feb 2011
              • 385

              #21
              Originally posted by Tchao
              Umm....the gains you will see is from the turbo

              A MAF is a MAF....like an O2 is an O2.
              uhhh...yeah no shit. you obviously don't get what im asking.

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              • matt
                No R3VLimiter
                • Oct 2003
                • 3731

                #22
                Originally posted by ACHTUNG
                Ahhh, this makes more sense if it's true.
                It's not. Put a 3.5 MAF on a stock car with a stock chip and it will be dangerously lean.

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