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  • Erikb
    S2Forum Maniac
    • Jul 2004
    • 648
    • Country: Netherlands

    #1

    revs 0 - 7000

    Can someone tell me how the engine go threw his revs. When does the turbo come in. How is the acceleration between 3000 and 7000 revs?

    My car goes well between 3000 - 4000 revs, after that the sound becomes more heavy and it is not go that fast in his revs. I think the previous onwer did always change gear at maximum 4000 revs.

    Thanks in advance,

    Erik
    Getting everything sorted out for my 5++ hp project
  • s2driveruk
    Super Moderator
    • Jul 2003
    • 12696
    • Country: England

    #2
    Peak torque is in by 1950rpm in stock form and hangs in there right through to over 5000rpm, I think infact 5800rpm. I'd say that between 3-5000 is where you'd get the peak power in terms of horses

    Someone will have a dyno plot or something for the stock 3b/aby i'd imagine.

    HTH,

    David
    sigpic

    1992 3b S2 Coupe

    Comment

    • 91_S2
      S2Forum Maniac
      • Jul 2003
      • 612

      #3
      If your car poops out at 4k, something is wrong.

      Around 2.4k, I cross-over from negative to zero bar.
      At 3-3.2k, I get the kick in the butt.
      The car pulls hard from 3.2-past 6.5k From there the K24 eases off.

      PS - I have Mihnea's second generation chip. It is both smoother and stronger than the first gen. I don't know how he did it but it is NICE!

      Comment

      • Erikb
        S2Forum Maniac
        • Jul 2004
        • 648
        • Country: Netherlands

        #4
        thanks s2driveruk,

        So i expect the turbo comes in very soon, before 2000revs?

        Could it be because I have a small leak in the hose from my airfilter to my turbo that the car ist performing on its best?
        Getting everything sorted out for my 5++ hp project

        Comment

        • Erikb
          S2Forum Maniac
          • Jul 2004
          • 648
          • Country: Netherlands

          #5
          thanks 91 s2,

          Do you maybe know a possible cause why the car isnt pulling that hard from 3.000 to 6500. also the sounds is a bit more heavy when I come to higher revs. Could it be that the previous owner did always shifted at 4.000.
          Getting everything sorted out for my 5++ hp project

          Comment

          • Fat Audi 80
            Super Moderator
            • Jan 2004
            • 10547
            • Country: England

            #6
            Originally posted by Erikb
            thanks s2driveruk,

            So i expect the turbo comes in very soon, before 2000revs?

            Could it be because I have a small leak in the hose from my airfilter to my turbo that the car ist performing on its best?
            YES! Any leaks will kill performance on this car especially just before the air filter.

            You should get a very strong pull from 3500 - 6000 and more with the turbo on song!

            Cheers,

            Steve.
            The Perfectionist
            sigpic
            Audi Class Concours winner Stoner Park 2014, ADI Concours D'Elegance Class Winner 2008, Runner up 2014. Winner, S2Forum Show'n'Shine Billing 2006 & 2008.

            Comment

            • Erikb
              S2Forum Maniac
              • Jul 2004
              • 648
              • Country: Netherlands

              #7
              Thanks Steve,

              I hope my nearby audi stealer has such a hose.
              Getting everything sorted out for my 5++ hp project

              Comment

              • 91_S2
                S2Forum Maniac
                • Jul 2003
                • 612

                #8
                Originally posted by Erikb
                thanks 91 s2,

                Do you maybe know a possible cause why the car isnt pulling that hard from 3.000 to 6500. also the sounds is a bit more heavy when I come to higher revs. Could it be that the previous owner did always shifted at 4.000.
                What do you mean by heavy sound exactly?

                - Could be an airleak.
                - maybe your fuel filter is old and a little clogged

                There could be a lot of other causes but you gotta start someplace and airleaks is something everybody on this list has had at one time or another.

                Comment

                • Erikb
                  S2Forum Maniac
                  • Jul 2004
                  • 648
                  • Country: Netherlands

                  #9
                  Originally posted by 91_S2
                  What do you mean by heavy sound exactly?

                  - Could be an airleak.
                  - maybe your fuel filter is old and a little clogged

                  There could be a lot of other causes but you gotta start someplace and airleaks is something everybody on this list has had at one time or another.
                  I just went to the audi stealer, they told me to replace the waterpump. They also told me that it could be the leak in the hose. Maybe the sensor gives wrong infomation to the ecu, the leak is in the hose from the filter to the turbo. Maybe the sensor measures the wrong amount of air?
                  Getting everything sorted out for my 5++ hp project

                  Comment

                  • Patrick
                    S2Forum Hobbyist
                    • Nov 2003
                    • 18

                    #10
                    Originally posted by Erikb
                    I just went to the audi stealer, they told me to replace the waterpump. They also told me that it could be the leak in the hose. Maybe the sensor gives wrong infomation to the ecu, the leak is in the hose from the filter to the turbo. Maybe the sensor measures the wrong amount of air?
                    When you change your drive belt the waterpump is advised to be changed as wel. The tension of the new belt causes leaking of the old waterpump. Could it be that the previous owner changed the drive belt but left the old waterpump?

                    I had problems with fuel economy / APK ( = MOT )once ; I went to the dealer and they replaced the air/fuel sensor in the inletmanifold and the lambda sensor ( eur 350,- in total ) and the car was up to 25% more efficient on fuel.
                    Sensors can be strange things...

                    Patrick
                    completely stock S2 except for the brakes and airfilter

                    Comment

                    • Erikb
                      S2Forum Maniac
                      • Jul 2004
                      • 648
                      • Country: Netherlands

                      #11
                      It could be that the drivebelt has been changed without changing the waterpump. I really dont know, I didnt get any papers. Friday I drive the car to the audi dealer, he will check the car and place the new waterpump. Is it expensive to replace the drive belt and the other belts on the front of the car at the same moment with the waterpump?.
                      Getting everything sorted out for my 5++ hp project

                      Comment

                      • Patrick
                        S2Forum Hobbyist
                        • Nov 2003
                        • 18

                        #12
                        Originally posted by Erikb
                        It could be that the drivebelt has been changed without changing the waterpump. I really dont know, I didnt get any papers. Friday I drive the car to the audi dealer, he will check the car and place the new waterpump. Is it expensive to replace the drive belt and the other belts on the front of the car at the same moment with the waterpump?.
                        I don't know what the dealer asks for that job; it's the labour that rizes the bill ( and the small problems they run into ).
                        I replaced the other belts and paid eur 120,- at the local garage.

                        It's more expensive not to replace the cambelt on time / in doubt.
                        completely stock S2 except for the brakes and airfilter

                        Comment

                        • Erikb
                          S2Forum Maniac
                          • Jul 2004
                          • 648
                          • Country: Netherlands

                          #13
                          I think I will ask them to replace all the belts at once together with the waterpump. I hope they dont bill me to much for it.They also put in new oil, castrol rs and a new filter.

                          They said to me that it was quite easy to install a turbo gauge in the car. So I could see if I had a leak. Is there maybe some kind of tutorial on the net how to install it?
                          Getting everything sorted out for my 5++ hp project

                          Comment

                          • nostrixoxide
                            S2Forum Hobbyist
                            • Jul 2004
                            • 18

                            #14
                            Erickb,
                            I read your post & noticed that you needed some insight on how to install a boost gauge. I remembered reading this & thought I would post if for you to refer to. I hope this helps you out. Good luck!

                            Comment

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