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85 CQ KV 10V non turbo to 20VT from 95 S6 AAN

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  • 85 CQ KV 10V non turbo to 20VT from 95 S6 AAN

    Hi Everyone.
    I have an 85 coupe quattro that is needing attention now.
    It is a lovely sounding car stainless exhaust and straight air filter.
    Cleaned out and changed breather pipes last week and it runs better than ever.
    Problem is it does have a lot less horses than it should.
    Only done 100k miles.
    Needs suspension and eventually respray, underneath was sorted 2 years ago , bushes etc and brakes to get it on the road.

    Next part!

    I can get a 95 S6 20VT quattro 6 speed 160k miles.
    Car is good.

    Went for a run but sounds nothing like the 10v but amazing power.
    Lifted the bonnet and got scared.
    Then i had a look on forums and got more scared! !

    So don't know what to do.
    Looks like a lot of time expense and work,

    Exhaust
    Cv joints
    inter cooler
    Airbox
    radiator
    Brakes
    Suspension
    inlet manifold
    wiring


    So really head scratching on this one.
    Love the sound of the 10v but would be amazing to do this.
    Any advice on what to do appreciated.
    Sean

  • #2
    I agree. 10v sounds far better!
    1996 S2 ABY Coupe silver
    2003 S3 8L dolphin grey
    2014 RS4 B8 prism silver

    Comment


    • #3
      Can't beat the NA 5cyl exhaust note. Keep the sound and add a supercharger

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      • #4
        Originally posted by SA BOY View Post
        Can't beat the NA 5cyl exhaust note. Keep the sound and add a supercharger
        Sounds good where can i purchase that from before i start googling !!!

        Comment


        • #5
          i did a 20vt conversion with my audi coupe quattro and i am very satisfied
          bin busy for 4 years with modifications
          i think it all depends what you want with power goals
          if you want a little bit more power i woud swap your engine for a 10vt from a urquattro or audi200,this will be the easiest way and the least work
          the 20vt engine swap is more work but certainly doable and many forum members have already done this
          you find also many info about this
          a 20vt with a sport exhaust give also a good sound
          audi coupe quattro b2 2.2 20vt project (573hp-626nm)
          TWINCHARGED power,zero lag
          AEM W/M injection

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          • #6
            Originally posted by quattro-nick View Post
            i did a 20vt conversion with my audi coupe quattro and i am very satisfied
            bin busy for 4 years with modifications
            i think it all depends what you want with power goals
            if you want a little bit more power i woud swap your engine for a 10vt from a urquattro or audi200,this will be the easiest way and the least work
            the 20vt engine swap is more work but certainly doable and many forum members have already done this
            you find also many info about this
            a 20vt with a sport exhaust give also a good sound



            Hi Nick.
            Yes looked at your project posts, looks amazing.
            Not sure if I have that much time and does look expensive.
            So lost as what to do.
            my 10v engine is good, bolt on extra power would be good but not easy either.

            But seems like a good opportunity to do a 20vt.
            It was a stainless exhaust on the s6 but very quiet, maybe because the car has better sound insulation anyway !
            so stuck !!!

            Comment


            • #7
              I had a 10v CQ back in 1989 and it sounded great. A friend had a 20v CQ also non turbo and it didn't sound as good, to my ear anyway, as I liked the 5 cylinder warble and the 20v seemed to be " smoother". The further addition of the turbo seems to alter the induction noise again and this is what you are experiencing. With the correct exhaust you will be able to get the sound you like outside the car but I think you like the 10v induction noise at present.
              You will really love the 20v turbo performance!!.
              1996 S2 ABY Coupe silver
              2003 S3 8L dolphin grey
              2014 RS4 B8 prism silver

              Comment


              • #8
                10 s sound way better than 20vt but depends if you want more power or MORE POWER
                what about over size n/a with cam and head work. Should be near 200bhp without loads of elastic trickery and stuff

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                • #9
                  Well, i had the same dilemna, taht's why i have bought a 200 Turbo 1B to put on my GTQ85, but lot of people on French board told me not lot of HP to win with 10V or it'll cost an arm & a leg ! more easy with 20v
                  so now nothing is done, but i have several S4 for parts to do one day the swap on my GTQ85 with 20V heart
                  sigpic

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                  • #10
                    Originally posted by seanfillingham View Post
                    Sounds good where can i purchase that from before i start googling !!!
                    Supercharger would be way easier to install than a complete engine swop. Merc compressor c230 would do but I am no expert on this.

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                    • #11
                      Stage one complete
                      Attached Files

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                      • #12
                        i presume you go for the 20vt?
                        audi coupe quattro b2 2.2 20vt project (573hp-626nm)
                        TWINCHARGED power,zero lag
                        AEM W/M injection

                        Comment


                        • #13
                          Originally posted by quattro-nick View Post
                          i presume you go for the 20vt?
                          Yes it was a good deal anyway.

                          Not sure what rechip it's had but amazed at power !

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                          • #14
                            good choice
                            i guess you must VAGCom the S6 to know which chip is in the Motro or opening the Motro

                            tof
                            sigpic

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                            • #15
                              Originally posted by quattro-nick View Post
                              i presume you go for the 20vt?
                              [emoji1] [emoji1] [emoji1]

                              Sent from my SM-G925F using Tapatalk

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