Launch control for Motronic

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  • prj
    S2Forum Zealot
    • Mar 2010
    • 6308
    • Country: Estonia

    #31
    Originally posted by Rocco
    Dmitri, do you think that is it a worth upgrade for 1/4 mille sesions??
    Of course, because you have 0.5-0.7 bar boost when you start like this.
    I have a 3 bar map sensor, so the computer is ~1.2x wrong. But the computer is very inaccurate. The 0.5-0.7 I got from my datalogger.
    http://tuner.ee - http://www.facebook.com/tuner.ee

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    • S2central.net
      Retired OG Mod
      • Jul 2003
      • 16590
      • Country: Northern Ireland

      #32
      I think it will be useful for drag sessions... I want to try with/without on a G-meter to try and get some measure of quantifiable benefit. Not too many times though - I like my clutch too much.
      Paul Nugent
      Webmaster http://S2central.net
      Administrator http://S2forum.com

      1994 S2 Coupe ABY - aka Project Lazarus
      2001 A6 allroad 2.5TDi - family tank
      2003 S4 Avant 4.2 V8 - daily burble

      Purveyor of HomeFries and Exclusive agent for Samco hose kits (S2/RS2)

      There are only 10 kinds of people that understand binary - those that do, and those that don't

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      • Rocco
        S2Forum Zealot
        • Aug 2007
        • 6393
        • Country: Spain

        #33
        Originally posted by S2central.net
        I think it will be useful for drag sessions... I want to try with/without on a G-meter to try and get some measure of quantifiable benefit. Not too many times though - I like my clutch too much.
        Paul,use it only very few times,,only for fun or for run away from the police

        Dmitri i will need this kind of stuff too...in both cars
        RED Mitsubishi Lancer Evolution VI TME nÂş 16 of 250
        BLACK Mitsubishi Lancer Evolution VI TME nÂş 189 of 250
        LWB Audi Sport Quattro project

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        • prj
          S2Forum Zealot
          • Mar 2010
          • 6308
          • Country: Estonia

          #34
          Originally posted by Rocco
          Dmitri i will need this kind of stuff too...in both cars
          No problem
          http://tuner.ee - http://www.facebook.com/tuner.ee

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          • DS2
            S2Forum Fanatic
            • Sep 2010
            • 80
            • Home: Jordan Current: Finland

            #35
            i think these are a must have... just because

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            • mouse
              S2Forum Addict
              • Apr 2008
              • 374
              • Country: Australia

              #36
              Originally posted by prj
              You need a switch under the clutch pedal. If TPS says that you are WOT, the switch is depressed and the vehicle is moving, the ECU cuts fuel.
              That way you prevent choking the turbo and when you are done shifting you'll still have boost.
              A bypass valve does this too to some extent, but this is much more effective.
              Would this have the potential to cause some damage if something went wrong? Say if you are trying to flatchange close to redline and the clutch switch malfunctions I suppose you would just hit the normal rev limiter/fuel cutout unless there was some some other sort of failsafe mechanism built in.

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              • prj
                S2Forum Zealot
                • Mar 2010
                • 6308
                • Country: Estonia

                #37
                Originally posted by mouse
                Would this have the potential to cause some damage if something went wrong? Say if you are trying to flatchange close to redline and the clutch switch malfunctions I suppose you would just hit the normal rev limiter/fuel cutout unless there was some some other sort of failsafe mechanism built in.
                Yes, you will just hit the normal rev limiter and nothing will happen.
                http://tuner.ee - http://www.facebook.com/tuner.ee

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                • Jonas_R
                  S2Forum Possessed
                  • Jan 2004
                  • 3781
                  • Country: Denmark

                  #38
                  Sounds very interesting

                  How would you hook up the potentiometer so you could have adjustable RPM?

                  I pressume that if you dont have the potentiometer then it will just rev to 4900 RPM or what you set it to in the software?
                  Sleeper S2 Avant +450

                  A6 Avant 2.7t Stage 3

                  Audi S2 Coupe RS2'ed

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                  • prj
                    S2Forum Zealot
                    • Mar 2010
                    • 6308
                    • Country: Estonia

                    #39
                    Originally posted by Jonas_R
                    How would you hook up the potentiometer so you could have adjustable RPM?
                    Soon(tm)
                    I pressume that if you dont have the potentiometer then it will just rev to 4900 RPM or what you set it to in the software?
                    Yes.
                    http://tuner.ee - http://www.facebook.com/tuner.ee

                    Comment

                    • Jonas_R
                      S2Forum Possessed
                      • Jan 2004
                      • 3781
                      • Country: Denmark

                      #40
                      One last question.
                      If you make the adjustments to the chip, then the launch control will always be on, right? I mean it does not use any kinda sensor on the clutch?
                      In principal I could just press that gas pedal in neutral or 1st gear (with clutch pressed down) and it would keep the revs at 4900 RPM?
                      Sleeper S2 Avant +450

                      A6 Avant 2.7t Stage 3

                      Audi S2 Coupe RS2'ed

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                      • prj
                        S2Forum Zealot
                        • Mar 2010
                        • 6308
                        • Country: Estonia

                        #41
                        Originally posted by Jonas_R
                        One last question.
                        If you make the adjustments to the chip, then the launch control will always be on, right? I mean it does not use any kinda sensor on the clutch?
                        In principal I could just press that gas pedal in neutral or 1st gear (with clutch pressed down) and it would keep the revs at 4900 RPM?
                        It works from speed.
                        If your car is not moving, then you will have 4900 RPM or whatever it is set that.
                        If it is moving you will have normal rev limiter.

                        It does not know if you are in neutral or not...
                        And just for basic launch control where the range is written in the chip you don't need any switches or any extra wiring - it is purely a software upgrade.
                        http://tuner.ee - http://www.facebook.com/tuner.ee

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                        • Jonas_R
                          S2Forum Possessed
                          • Jan 2004
                          • 3781
                          • Country: Denmark

                          #42
                          Originally posted by prj
                          It works from speed.
                          If your car is not moving, then you will have 4900 RPM or whatever it is set that.
                          If it is moving you will have normal rev limiter.

                          It does not know if you are in neutral or not...
                          And just for basic launch control where the range is written in the chip you don't need any switches or any extra wiring - it is purely a software upgrade.
                          Ok thanks and nice work
                          Sleeper S2 Avant +450

                          A6 Avant 2.7t Stage 3

                          Audi S2 Coupe RS2'ed

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                          • blackS2
                            S2Forum Addict
                            • Apr 2010
                            • 455
                            • Country: Germany

                            #43
                            thats impressive!!!
                            [__]=oooo=[__]

                            Comment

                            • Error404
                              Super Moderator
                              • Mar 2007
                              • 19789
                              • Country: United Kingdom

                              #44
                              very cool mod
                              Panthero Coupé quattro 20vt
                              Indigo ABY coupé
                              Imola B6 S4 Avant

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                              • prj
                                S2Forum Zealot
                                • Mar 2010
                                • 6308
                                • Country: Estonia

                                #45
                                Buy it, buy it, buy it
                                Paul can help you with it as well.
                                http://tuner.ee - http://www.facebook.com/tuner.ee

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