Which injectors?

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  • Quattro Dan.
    S2Forum Maniac
    • Dec 2005
    • 746
    • Country: United Kingdom

    #1

    Which injectors?

    Can anyone recommend the injectors i need for the following set up;

    injectors?
    GT3071
    rs2 exhaust manifold
    044 motor sport fuel pump
    scat rods
    bigger than standard intercooler
    AAN inlet manifold
    2.75 inch exhaust- no cats
    3 bar map sensor
    mechanical boost- no WGFV:mischeif:

    Also what sort of BHP should i get with this set up?

    Thanks in advance,

    Dan.
    Last edited by Quattro Dan.; 24 November 2009, 19:14.
  • s2_bo
    S2Forum Zealot
    • Oct 2005
    • 6067
    • Home: United Kingdom Current: France

    #2
    Siemens do some good ones at 660cc they are about £220 a set iirc, Audiman used to sell them.

    Cheers.
    bo
    91 S2 coupé - RIP
    98 S8 - Luxury barge

    Comment

    • Jamo
      Retired OG Mod
      • Mar 2004
      • 21750
      • Country: United Kingdom

      #3
      probably just around 400 bhp, the 2.75 downpipe is may hurt you for backpressure at these bhp level.

      Any injector 440cc would do you. Bosch greens etc best ones would be the ones Bo's said above

      Comment

      • AndyP
        S2Forum Zealot
        • Feb 2004
        • 6049
        • Country: England

        #4
        http://cgi.ebay.com/ebaymotors/5-Bos...Q5fCarQ5fParts

        These are what I'm using in mine.
        sigpic
        1991 Audi S2 3B - 2.5 Stroker engine
        1997 A6 2.5TDi quattro avant - C4
        1976 RD250E / 350LC cafe racer

        Comment

        • EBR
          S2Forum Fanatic
          • Jan 2009
          • 64
          • Country: Iceland

          #5
          I have 5 used Siemens Deka 580cc injectors. They are for sale if anyone is interested, you can pm me for more info.

          Eiríkur...
          sigpic
          Audi S4 20VT 11.453@121.62

          Comment

          • david
            S2Forum Extremist
            • Oct 2008
            • 1268
            • Country: United Kingdom

            #6
            Originally posted by AndyP
            are these just as good as Rs2 injectors?
            [SIGPIC][SIGPIC]/SIGPIC]92 3B pearl white=gone back home to Germany,probably in bits and pieces

            RS2 VOLCANO BLACK] soon to be broken to bits

            Comment

            • Jamo
              Retired OG Mod
              • Mar 2004
              • 21750
              • Country: United Kingdom

              #7
              Originally posted by david
              are these just as good as Rs2 injectors?
              What so special about RS2 injectors...............

              Nothing

              Comment

              • david
                S2Forum Extremist
                • Oct 2008
                • 1268
                • Country: United Kingdom

                #8
                rs2 injectors

                nothing special,just a bench mark to gauge how good the injectors are
                [SIGPIC][SIGPIC]/SIGPIC]92 3B pearl white=gone back home to Germany,probably in bits and pieces

                RS2 VOLCANO BLACK] soon to be broken to bits

                Comment

                • Jamo
                  Retired OG Mod
                  • Mar 2004
                  • 21750
                  • Country: United Kingdom

                  #9
                  Your logic is flawed the RS2 injectors are not special there is nothing to benchmark against. The only thing special about them is they were designed for a specific cc output for the RS2 chipset.

                  When looking for injectors for the S2 you want a) multi point spray pattern over single pattern b) High impedance to work with the stock ECU c) Enough cc to flow for your BHP application.

                  Comment

                  • AndyP
                    S2Forum Zealot
                    • Feb 2004
                    • 6049
                    • Country: England

                    #10
                    Depends what you mean by good? They are a Bosch injector like the RS2 so they are the same quality, but slightly higher flow capacity.
                    sigpic
                    1991 Audi S2 3B - 2.5 Stroker engine
                    1997 A6 2.5TDi quattro avant - C4
                    1976 RD250E / 350LC cafe racer

                    Comment

                    • david
                      S2Forum Extremist
                      • Oct 2008
                      • 1268
                      • Country: United Kingdom

                      #11
                      i think you hit the nail on the head. better flow,that's what i was looking for
                      [SIGPIC][SIGPIC]/SIGPIC]92 3B pearl white=gone back home to Germany,probably in bits and pieces

                      RS2 VOLCANO BLACK] soon to be broken to bits

                      Comment

                      • nip
                        S2Forum Extremist
                        • Apr 2006
                        • 1786
                        • Home: United Kingdom Current: Abu Dhabi

                        #12
                        dan, i have some siemens 440cc injectors if ur interested

                        Comment

                        • trackslag
                          Account Disabled
                          • Sep 2009
                          • 171
                          • Country: United Kingdom

                          #13
                          have a play with this look at bottom of page

                          Comment

                          • Jamo
                            Retired OG Mod
                            • Mar 2004
                            • 21750
                            • Country: United Kingdom

                            #14
                            For the I5 engine it's even simpler injector cc equal bhp

                            Comment

                            • trackslag
                              Account Disabled
                              • Sep 2009
                              • 171
                              • Country: United Kingdom

                              #15
                              out of interest what size are standard ABY s2 injectoer anyone know?

                              Comment

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