2.8 Stroker Injectors

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  • jules325i
    Grease Monkey
    • Jul 2011
    • 353

    #1

    2.8 Stroker Injectors

    Will i need bigger injectors or can i just get away with an adjustable fuel pressure regulator (and crank it up).


    329i
  • Robotin
    R3V Elite
    • Jun 2011
    • 4471

    #2
    SETA stroker?? if so.... makes me sad... if your running the stock fuel pump... the m50 17lb injectors will make your fuel pump breathe better. but with an adjustable regulator. if u "crank it up" u should probably put something a little bigger in.
    1989 325i SETA stroker [delphin] R3V'd 8/31/2011
    1989 325ix [zinnoberrot] $OLD
    1970 2002 [Nevada]

    Originally posted by Herr Faust Schinken
    guy must have slid into something that doesn't look like a car vs car hit
    Originally posted by ak-
    Must of slid into Rob

    Comment

    • MR 325
      Moderator
      • Oct 2003
      • 37827

      #3
      Originally posted by M20_fiend
      SETA stroker?? if so.... makes me sad... if your running the stock fuel pump... the m50 17lb injectors will make your fuel pump breathe better. but with an adjustable regulator. if u "crank it up" u should probably put something a little bigger in.
      A 2.8 stroker is not the same as a Super Eta 2.7i engine.

      OP for the 2.8 I'd recommend 19lb injectors and adjustable FPR.
      BimmerHeads
      Classic BMW Specialists
      Santa Clarita, CA

      www.BimmerHeads.com

      Comment

      • MR 325
        Moderator
        • Oct 2003
        • 37827

        #4
        Also, stock fuel pumps are just fine. My turbo E30 has a stock fuel pump. :)
        BimmerHeads
        Classic BMW Specialists
        Santa Clarita, CA

        www.BimmerHeads.com

        Comment

        • acolella76
          R3VLimited
          • Apr 2010
          • 2950

          #5
          Idk if an AFPR is necessary, but 19lb/hr injectors are what I would use.
          -Alex

          Comment

          • nando
            Moderator
            • Nov 2003
            • 34827

            #6
            leave the FPR alone. just change the injectors and get a tune for it.
            Build thread

            Bimmerlabs

            Comment

            • E30_fiend
              R3V OG
              • Apr 2006
              • 7348

              #7
              No need for the afpr. The stock fuel pressure will feed the 19lb injectors just fine. I dont care how much bigger your bottom end is. You wont need more fuel pressure. Its not FI so you shouldn't need THAT much more fuel.


              Taylor
              Need a performance chip for you BMW? Shoot me a PM and I'll get you taken care of!!
              Taylor- Follow me on Instagram @e30_fiend


              Comment

              • jules325i
                Grease Monkey
                • Jul 2011
                • 353

                #8
                Sweet I'll go with bigger injectors.
                Any sugestions.. IE?


                329i

                Comment

                • nando
                  Moderator
                  • Nov 2003
                  • 34827

                  #9
                  M50 injectors are plenty big enough for any M20
                  Build thread

                  Bimmerlabs

                  Comment

                  • E30_fiend
                    R3V OG
                    • Apr 2006
                    • 7348

                    #10
                    Find some Bosch design II's out of newer Ford v8
                    Need a performance chip for you BMW? Shoot me a PM and I'll get you taken care of!!
                    Taylor- Follow me on Instagram @e30_fiend


                    Comment

                    • F34R
                      sLaughter
                      • May 2009
                      • 12385

                      #11
                      Originally posted by nando
                      M50 injectors are plenty big enough for any M20
                      1+ same thing I am running in my brother's 2.8 stroker.
                      ~ Puch Cafe. ~ Do business? feedback ~ Check out my leather company ~

                      Instagram: @BWeissLeather

                      Current cars:
                      ~ '87 325 M30B35 swap
                      ~ '87 535
                      ~ 01 540 Msport 6spd
                      ~ '06 X5 4.8is

                      Comment

                      • Robotin
                        R3V Elite
                        • Jun 2011
                        • 4471

                        #12
                        figured he was rounding up... sorry yall... my bad... what did u do to get the full 2.8?
                        1989 325i SETA stroker [delphin] R3V'd 8/31/2011
                        1989 325ix [zinnoberrot] $OLD
                        1970 2002 [Nevada]

                        Originally posted by Herr Faust Schinken
                        guy must have slid into something that doesn't look like a car vs car hit
                        Originally posted by ak-
                        Must of slid into Rob

                        Comment

                        • F34R
                          sLaughter
                          • May 2009
                          • 12385

                          #13
                          Originally posted by M20_fiend
                          figured he was rounding up... sorry yall... my bad... what did u do to get the full 2.8?
                          m52 crankshaft, eta rods and b25 pistons.
                          ~ Puch Cafe. ~ Do business? feedback ~ Check out my leather company ~

                          Instagram: @BWeissLeather

                          Current cars:
                          ~ '87 325 M30B35 swap
                          ~ '87 535
                          ~ 01 540 Msport 6spd
                          ~ '06 X5 4.8is

                          Comment

                          • digger
                            R3V Elite
                            • Nov 2005
                            • 5932

                            #14
                            Originally posted by nando
                            M50 injectors are plenty big enough for any M20
                            any M20? noway
                            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

                            Comment

                            • nando
                              Moderator
                              • Nov 2003
                              • 34827

                              #15
                              Okay, 99% of the builds here, yours not included. ;)
                              Build thread

                              Bimmerlabs

                              Comment

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