Launch RPM?

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  • YELL MAN
    S2Forum Maniac
    • Dec 2005
    • 541
    • Country: Shetland Islands

    #1

    Launch RPM?

    Hi i was wondering what RPM's was best for launching a standerd S2 with a homefry up the quarter mile. I usually launch at 3500 RPM but im scared to go any higher for fear of breaking something. Thanks for any advice.
    1994 Indigo Blue S2 coupe
    1994 80 Avant 1.9 TDI
    2005 Yamaha Fazer 1000
    1953 AJS Model 18S
  • porkkis
    S2Forum Extremist
    • Aug 2003
    • 1994
    • Country: Finland

    #2
    5000
    -

    Comment

    • jogi730
      S2Forum Fiend
      • Jun 2004
      • 2335
      • Country: United Kingdom

      #3
      I have been led to believe it's 5250 rpm, where the torque and power lines cross on any engine
      Cheers
      Chris
      Audi 90 quattro (Typ 85)
      20v turbo conversion

      sigpic

      Comment

      • YELL MAN
        S2Forum Maniac
        • Dec 2005
        • 541
        • Country: Shetland Islands

        #4
        Ok thanks i will try 5000rpm first and see what happens, i was just worried that it would be to much for the clutch to handle.
        Cheers
        1994 Indigo Blue S2 coupe
        1994 80 Avant 1.9 TDI
        2005 Yamaha Fazer 1000
        1953 AJS Model 18S

        Comment

        • porkkis
          S2Forum Extremist
          • Aug 2003
          • 1994
          • Country: Finland

          #5
          It'll hold if it's not on it's way out already and you don't let it slip.
          -

          Comment

          • MidnightBlueS2
            S2Forum Extremist
            • Jul 2005
            • 1653
            • Home: United States Current: Belgium

            #6
            Originally posted by porkkis
            It'll hold if it's not on it's way out already and you don't let it slip.
            I can vouch for that !
            Midnight Blue S2 - SOLD - 1993 S2 Avant

            Comment

            • sorens2
              S2Forum Addict
              • Feb 2004
              • 241
              • Country: Denmark

              #7
              I launch @ 5700
              Tried 5200 but that was not enough.
              450 BHP

              Søren S2
              Audi RS4 LO550

              BTG 8:08

              www.fredslunds.dk

              Comment

              • s2munckton
                S2Forum Fanatic
                • Jan 2006
                • 66
                • Country: Australia

                #8
                Maybe a stupid question, but at 5000ish are you dumpling the clutch or do you let it slip a little?
                Good Question Yell Man
                Rich aka s2munckton

                94 Audi S2 coupe.

                Comment

                • s2munckton
                  S2Forum Fanatic
                  • Jan 2006
                  • 66
                  • Country: Australia

                  #9
                  ahh, not dumpling the clutch, i meant to say "dumping"
                  whoops, you can guess what i want for dinner!
                  Rich aka s2munckton

                  94 Audi S2 coupe.

                  Comment

                  • YELL MAN
                    S2Forum Maniac
                    • Dec 2005
                    • 541
                    • Country: Shetland Islands

                    #10
                    Ok i had a few practice shots at 5000 rpm, what a differance it's made the car was even leaving skid marks on the road on take off . By the way that was with dumping the clutch rather than letting it slip. cheers for the advice.
                    1994 Indigo Blue S2 coupe
                    1994 80 Avant 1.9 TDI
                    2005 Yamaha Fazer 1000
                    1953 AJS Model 18S

                    Comment

                    • aronmatic2
                      S2Forum Fiend
                      • Jan 2004
                      • 2129
                      • Country: Hungary

                      #11
                      nobody can tell what is the best launch rpm.
                      depends of lot of things.

                      what is the material of road.
                      what kind of tires you use.
                      what is the size of your tires.
                      what kind of weather, what temperature.
                      lots more.

                      i have launch control. i use between 5200 and 5800rpm.

                      dont try under 4000rpm. very dangeorus, you can break something easyly.
                      --------------------------------------------------------
                      Real carbon parts for S2 and RS2. Check Carbondesign on facebook

                      Comment

                      • YELL MAN
                        S2Forum Maniac
                        • Dec 2005
                        • 541
                        • Country: Shetland Islands

                        #12
                        So using 3500 rpm could explain this

                        To much power3.jpg
                        1994 Indigo Blue S2 coupe
                        1994 80 Avant 1.9 TDI
                        2005 Yamaha Fazer 1000
                        1953 AJS Model 18S

                        Comment

                        • aronmatic2
                          S2Forum Fiend
                          • Jan 2004
                          • 2129
                          • Country: Hungary

                          #13
                          maybe.

                          try like this:
                          push the clutch pedal in.
                          engage the clutch slow.
                          when you feel the clutch is start to hold, push back
                          one centimeter.
                          launch to 5000rpm and engage the clutch fast.

                          never going to happen again.
                          need some practice
                          --------------------------------------------------------
                          Real carbon parts for S2 and RS2. Check Carbondesign on facebook

                          Comment

                          • Chris5044
                            S2Forum Extremist
                            • Feb 2005
                            • 1663
                            • Country: United Kingdom

                            #14
                            when u guys say dump ... is it safe to say that u are simply stepping off the clutch pedal?

                            i did an accidental launch at 4000rpm wicked but tried higher and clutch burn n going nowhere

                            Comment

                            • QuattroFever
                              S2Forum Extremist
                              • May 2006
                              • 1360
                              • Country: United Kingdom

                              #15
                              Originally posted by aronmatic2
                              nobody can tell what is the best launch rpm.
                              depends of lot of things.

                              what is the material of road.
                              what kind of tires you use.
                              what is the size of your tires.
                              what kind of weather, what temperature.
                              lots more.

                              i have launch control. i use between 5200 and 5800rpm.

                              dont try under 4000rpm. very dangeorus, you can break something easyly.
                              How can less rpm break things easier?
                              To little power to spin the wheels so more strain on the drivetrain?

                              If thats the case then I would have thought that it's purely down to what size/grade tyres you have and not rpm related, no?

                              Hope I've not sealed my own coffin asking this ques.

                              Come on someone sci-slaughter me.
                              Volcano ABY coupe

                              Ant

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