B7 RS4 Flywheel / Gearbox questions

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  • Tonks4x4
    Retired OG Mod
    • Nov 2005
    • 3062
    • Country: United Kingdom

    #1

    B7 RS4 Flywheel / Gearbox questions

    Hi Chaps can anyone answer the following???

    The B7 RS4 V8 flywheel is approx 10mm larger in diameter and has a 10 bolt fixing in the centre.

    Is the B7 RS4 gearbox the only quattro manual box that has the larger bell housing to accommodate the larger flywheel?
    Audi Nut!!!
  • AndyP
    S2Forum Zealot
    • Feb 2004
    • 6049
    • Country: England

    #2
    Try getting in touch with Bry. He is converting an A8 4.2 V8 to manual, this also has a 10bolt crank. He has found an Audi flywheel that will bolt on, and fit inside the 01E bellhousing, so may be of use to you.
    sigpic
    1991 Audi S2 3B - 2.5 Stroker engine
    1997 A6 2.5TDi quattro avant - C4
    1976 RD250E / 350LC cafe racer

    Comment

    • Tonks4x4
      Retired OG Mod
      • Nov 2005
      • 3062
      • Country: United Kingdom

      #3
      Just text him mate his is the small version the same size as an s2 flywheel
      Audi Nut!!!

      Comment

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

        #4
        I think the RS4 10 bolt flywheel is unique, the B6/7 S4 ones are certainly the usual 8 bolt pattern, not sure about the gearbox though unfortunately - maybe email JHM I'm sure they could tell you?
        Panthero Coupé quattro 20vt
        Indigo ABY coupé
        Imola B6 S4 Avant

        Comment

        • AndyP
          S2Forum Zealot
          • Feb 2004
          • 6049
          • Country: England

          #5
          What gearbox are you planning to use?
          sigpic
          1991 Audi S2 3B - 2.5 Stroker engine
          1997 A6 2.5TDi quattro avant - C4
          1976 RD250E / 350LC cafe racer

          Comment

          • Tonks4x4
            Retired OG Mod
            • Nov 2005
            • 3062
            • Country: United Kingdom

            #6
            I have scratched my head all day mate with a little fabrication I can use the original flywheel original clutch and fit it to either an 016 or an 01E but I would have to use a spacer ring between the box and the engine. And do a little machining on part of the duel mass flywheel
            The trouble is as all the timing gear is at the back of the engine they have had to rotate the starter motor outwards and make it slightly smaller therefore a bigger flywheel. An S2 starter will not fit at all, if it had I could have used a V6 10bolt flywheel

            The pressure plate and friction plate is almost exact dimensions as UR/3B ABY etc

            But the issue is that the 80 has a 4 cyl Quattro box and the stud pattern on the bell housing is different to the 5cyl version.

            So I need to change the box anyway, but it comes back to the age old issue if I go for s2 box I will have to have custom half shafts ect also
            I guess I could get away with an 016 for the time being and use coupe Quattro front drive shafts as I need to retain 4 stud hubs for the correct look I am aiming for.
            Audi Nut!!!

            Comment

            • martinjs
              S2Forum Possessed
              • Jul 2003
              • 3205
              • Country: England

              #7
              Have you read this Brian? maybe of some help.

              A very select few of you 'Geekers' know about this top secret project, and thanks all of you who do for keeping my little secret. I have a secret project that I will soon share with you all, and I have a feeling you might like it :) My original intention was to keep this project secret, and...

              Comment

              • Tonks4x4
                Retired OG Mod
                • Nov 2005
                • 3062
                • Country: United Kingdom

                #8
                Originally posted by martinjs
                Have you read this Brian? maybe of some help.

                http://www.motorgeek.com/viewtopic.php?f=6&t=29308
                I have now mate it took me a week to read through the 60 pages of posts

                He has used the later getrag gearbox and done some radical things with the shafts etc.

                Great project though

                However it's yet another project that is putting me off going stand alone ECU's instead of re-mapped original ECU's
                Audi Nut!!!

                Comment

                • JP
                  S2Forum Extremist
                  • Mar 2007
                  • 1858
                  • Country: United Kingdom

                  #9
                  Why don't you use the bottom end of the v8 that came in the s6+? That way the gearbox bolts straight up and you only have to mate the later heads onto the earlier block.
                  UrS6 Stroker + HTA3586 =

                  Comment

                  • Tonks4x4
                    Retired OG Mod
                    • Nov 2005
                    • 3062
                    • Country: United Kingdom

                    #10
                    Originally posted by RWD19T
                    Why don't you use the bottom end of the v8 that came in the s6+? That way the gearbox bolts straight up and you only have to mate the later heads onto the earlier block.
                    Nice idea but I don't know the comparability of the early and late heads. At least if I sort it this way I know the clutch will handle the power and If it destroys the box I can source cheap replacements
                    Audi Nut!!!

                    Comment

                    • BRY
                      S2Forum Possessed
                      • Nov 2004
                      • 3755
                      • Home: United Nations Current: Vietnam

                      #11
                      My flywheel is an S6+ from Pdiddy. It's at Wab's if you need a look at it.
                      Kingdoms are run by Kings, Dictatorships are run by Dictators.
                      England must be a Country. :mischeif:

                      Comment

                      • andy10v
                        S2Forum Zealot
                        • Mar 2009
                        • 5996
                        • Country: Scotland

                        #12
                        Originally posted by RWD19T
                        Why don't you use the bottom end of the v8 that came in the s6+? That way the gearbox bolts straight up and you only have to mate the later heads onto the earlier block.
                        I think somebody on motorgeek something similair, swapped either the bottom end or the crank to get the 8 bolt setup, I guess the whole bottom end would make sense to get the starter in the right place.

                        Another thread with some good info and run through different options

                        rs6 engine into s6 with 01e

                        Well folks, I guess I'll make a big splash (hopefully not a belly flop) with my first post. I'm beginning a huge, yet hopefully short, undertaking that will transplant an RS6 powerplant and 01E 6 speed in to my 2002 S6. You may be thinking I'm nuts or why not just buy an RS6 or just use a...


                        Uses a custom flywheel, spacer plate and tilton starter in the end
                        Current-2004 Impreza PPP wagon

                        Sold-92 3B coupe-RS2+, 996s, konis, rear torsen, forged rods........
                        Sold ABY-stock

                        Comment

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

                          #13
                          The BNS bottom end is totally different to the 40v engines

                          Read this
                          Panthero Coupé quattro 20vt
                          Indigo ABY coupé
                          Imola B6 S4 Avant

                          Comment

                          • andy10v
                            S2Forum Zealot
                            • Mar 2009
                            • 5996
                            • Country: Scotland

                            #14
                            Originally posted by Error404
                            The BNS bottom end is totally different to the 40v engines

                            Read this

                            That is a really good read, I like the breather system built into the head, very noice.
                            Current-2004 Impreza PPP wagon

                            Sold-92 3B coupe-RS2+, 996s, konis, rear torsen, forged rods........
                            Sold ABY-stock

                            Comment

                            • Tonks4x4
                              Retired OG Mod
                              • Nov 2005
                              • 3062
                              • Country: United Kingdom

                              #15
                              I was worried when I found that PDF a couple of months ago as it shows the fuel rails at 136bar (2000psi) I was wondering where the hell I was going to find a fuel pump to do that but then later found out the engine has the pumps built in and they are just fed from something like an 044
                              Audi Nut!!!

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