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Avant Rear Brake Upgrade - Rear Brake Porn by request

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  • #31
    Nice one Ben...

    For the Coupe owners, check post #145 in this thread for all the parts required -

    http://www.s2forum.com/forum/showthr...=13798&page=10

    Post #160 in the same thread has the caliper part numbers applicable to Coupe.
    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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    • #32
      Fitted my 8E0 upgrade kit supplied by Ben on Friday.

      Had to grind a little clearance on the caliper mounts to get them to mount up properly, had to make up two new brake pipes and some of the bolts supplied weren't quite right but that was as difficult as it got.

      Until...... I trial fitted my 16" Avus wheel.

      No problems with clearance on the caliper itself but the handbrake release spring rubbed against the wheel rim and got knocked off by a balance weight. After comparing the standard S2 caliper with the 8EO one with the spring removed I've come to the conclusion that there seems to be sufficient 'spring' in the 8E0 caliper to be able to run without the external return spring. Time will tell whether this is the correct decision. I'll be monitoring it to see if I get any problems.

      Still got to get them bled properly and the handbrake is going to need adjusting before MOT time but a very nice easy conversion.

      Cheers

      David
      1994 16v Coupe - Sold on and sadly missed
      1994 S2 Avant - Warmed up a bit
      1995 A6 Avant - Dag Dag Delight

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      • #33
        I just did my conversion today and the hand brake cables were a nightmare to get on, they needed a lot of adjusting!

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        • #34
          just had mine fitted and the braided line I had made is too short...even though it is 20mm longer than the standard S4 one!!....but feels good though....

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          • #35
            Little reminder: Carrier needs small grinding job to fit.

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            • #36
              Fine upgrade!
              But I don´t understand correctly, the pieces I need to upgrade to S4B5 265mm

              Disks
              Calipers
              pads
              handbrake cables
              Anymore?

              I need change the rear brakes and in spanish forums no one know anything

              Thanks!
              photobucket SUCKS
              sigpic

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              • #37
                Please, help me!
                I don´t have mony, and I need rear brakes.
                What I need to put S4 B5 brakes?

                I can put UrS4 rear brakes?
                photobucket SUCKS
                sigpic

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                • #38
                  I don't *think* the B5 S4 rears will fit... disc offset is all wrong.

                  If you can't afford the B7 S4 conversion on your Avant (as per this 8E0 thread) then its maybe best you just refresh the factory setup. Discs are cheap even from Audi and refurbished calipers are available on exchange basis from good parts dealers. Make sure you request correct caliper for your car though - the B4 Avant has different caliper from B3 Coupe.

                  Paul
                  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

                  Comment


                  • #39
                    Originally posted by S2central.net View Post
                    I don't *think* the B5 S4 rears will fit... disc offset is all wrong.

                    If you can't afford the B7 S4 conversion on your Avant (as per this 8E0 thread) then its maybe best you just refresh the factory setup. Discs are cheap even from Audi and refurbished calipers are available on exchange basis from good parts dealers. Make sure you request correct caliper for your car though - the B4 Avant has different caliper from B3 Coupe.
                    Paul
                    Thank you Paul!
                    And the brakes of an UrS4?
                    photobucket SUCKS
                    sigpic

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                    • #40
                      when you had the 256mm on the rear what carrier did you use?

                      my brakes on the 90 all need overhauled so im thinking using my current front disc's on the rear and fit 276 grooved with green stuff to the front
                      im going the sleeper look so i want keep my 15" rims

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                      • #41
                        I used B5 S4 carriers and calipers with machined TT discs for the 256mm setup.

                        Ben
                        the best intentions are fraught with disappointment - gil grissom

                        sigpic
                        1994 ABY Avant - it's getting there

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                        • #42
                          thanks

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                          • #43
                            Really interesting thread! I've been looking quite a while for a decent upgrade. With 323mm drilled S8 discs in front, yellowstuffs and porsche 996 calipers, I think this will do just fine at the back of the sedan. Thnx for the clear overview on the previous page.

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                            • #44
                              Originally posted by s2avant View Post
                              I used B5 S4 carriers and calipers with machined TT discs for the 256mm setup.

                              Ben
                              Machined?
                              photobucket SUCKS
                              sigpic

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                              • #45
                                The PCD of the TT disc is 5x100. They need to have the holes elongated to fit 5x112. You also need to alter the profile of the centre chamfer as it doesn't fit with the S2 hub. I had mine done by an engineering firm so they were accurate but even them I didn't like the play in the disc hence moving up to 300mm and then 330mm.

                                Ben
                                the best intentions are fraught with disappointment - gil grissom

                                sigpic
                                1994 ABY Avant - it's getting there

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