What size injectors?

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  • RowdieRowd
    Noobie
    • Jan 2009
    • 34

    #1

    What size injectors?

    What size injectors do you recommend for an n/a 2.7i just a stock rebuild with the i head and i top end. I'm planning on boosting it soon after i break the motor in but what size injectors do you recommend for na and or turbo?
  • Danny
    Moderator
    • Feb 2008
    • 14217

    #2
    19 for N/A 24 for turbo.

    Comment

    • nando
      Moderator
      • Nov 2003
      • 34827

      #3
      24# are small for an M20 turbo - 32# minimum for a turbo, preferrably 42-60# if you're going to do more than 8-10psi.

      I would do 17# M50 injectors on an otherwise stockish M20 (2.7i counts as stockish in this case).
      Build thread

      Bimmerlabs

      Comment

      • JTapper
        E30 Modder
        • Sep 2009
        • 847

        #4
        I'm working with Miller Performance on my M20 turbo project, they recommended 30#, I'll be running 12psi max.
        sigpic
        Turbo Cabrio project: http://eurowerks.org/showthread.php?t=19677

        Comment

        • MR 325
          Moderator
          • Oct 2003
          • 37825

          #5
          I'd do M50 injectors.
          BimmerHeads
          Classic BMW Specialists
          Santa Clarita, CA

          www.BimmerHeads.com

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