Megasquirt help

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  • nando
    Moderator
    • Nov 2003
    • 34827

    #16
    wow 7ms running? that is way, way too much. typically you'd run 2.5-4.5 with most being right around 3.

    any idea what coil drivers you have (VB921 or bosch)? can you send me the pic you sent todd?

    it's late (just got home) so I won't be able to look at your maps until tomorrow, but I still think one of the coil drivers may be dead. it might not look visually fried but I have a hard time imagining them holding up for very long with that much dwell.
    Build thread

    Bimmerlabs

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    • shiboujin
      R3VLimited
      • Feb 2006
      • 2791

      #17
      Yea coil drivers could very well be dead. 7ms of dwell on a COP setup? I would think 2.5-3 range would be max...

      Put in some BIP373s. They won't die lol. Def lower the dwell. what is the exact plug model you use? I use BPR7Es but I run an M50.

      Status: HG repair. 488wtq though!

      Comment

      • nando
        Moderator
        • Nov 2003
        • 34827

        #18
        oh btw do you have high impedance injectors, or low impedance? your injector settings didn't look right.

        otherwise nothing else jumped out at me in your MSQ
        Build thread

        Bimmerlabs

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        • gsxrcop
          Advanced Member
          • Apr 2008
          • 161

          #19
          I run NGK 2288.

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          • gsxrcop
            Advanced Member
            • Apr 2008
            • 161

            #20
            thanks chris. Not sure on the injectors, Todd sold them to me. He did say he was surprised the stock ecu is running them.

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            • shiboujin
              R3VLimited
              • Feb 2006
              • 2791

              #21
              NGK 2288s should be fine.

              Status: HG repair. 488wtq though!

              Comment

              • nando
                Moderator
                • Nov 2003
                • 34827

                #22
                Originally posted by gsxrcop
                thanks chris. Not sure on the injectors, Todd sold them to me. He did say he was surprised the stock ecu is running them.
                do you have a model number?
                Build thread

                Bimmerlabs

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                • Danny
                  Moderator
                  • Feb 2008
                  • 14216

                  #23
                  I believe they are the 30lbs from a Volvo Turbo, correct me if I'm wrong however.

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                  • nando
                    Moderator
                    • Nov 2003
                    • 34827

                    #24
                    yeah still need a part # to know if they are high or low-z injectors tho
                    Build thread

                    Bimmerlabs

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                    • gsxrcop
                      Advanced Member
                      • Apr 2008
                      • 161

                      #25
                      I spoke to Todd. He said they are mid 80's volvo turbo 320cc low impedence injectors. He is also sending me some new drivers just in case.

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                      • gsxrcop
                        Advanced Member
                        • Apr 2008
                        • 161

                        #26
                        Does that info help?

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                        • gsxrcop
                          Advanced Member
                          • Apr 2008
                          • 161

                          #27
                          Well I replaced the drivers and got the car running on MS. I set the dwell to 3.5 and 4.0. seems to be running good. Chris, you were saying the injector settings didn't look right. Where are you looking at that? I'm not sure where those settings are at. Car pulls strong at 9psi, spins the tires pretty hard 1st, 2nd and into 3rd. Thanks for the help guys, I think I'm almost there.

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                          • nando
                            Moderator
                            • Nov 2003
                            • 34827

                            #28
                            they looked fine, I asked because they were set up for low-z injectors and most people are using high-z injectors.
                            Build thread

                            Bimmerlabs

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                            • shiboujin
                              R3VLimited
                              • Feb 2006
                              • 2791

                              #29
                              4ms of dwell? wow... Do you know of anyone else on an M42 that runs COP? I wonder if your coils are the same as mine. My final dwell was 2.5ms.

                              Status: HG repair. 488wtq though!

                              Comment

                              • gsxrcop
                                Advanced Member
                                • Apr 2008
                                • 161

                                #30
                                Not sure about what coils they are, gray on top and no number. I bought them from the guy who was selling the whole kits on here. Should I lower the dwell? If so, to what? Starting and running. Car seems to have a tough time starting after it's been warmed up, cold it ok.

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