Porsche Brembo's upgraded - Excessive pedal travel S2 coupe ABY

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  • Audiudo
    S2Forum Hobbyist
    • May 2015
    • 24
    • Country: United Kingdom

    #1

    Porsche Brembo's upgraded - Excessive pedal travel S2 coupe ABY

    Evening guys, girls.

    Trying to figure out a few problems since having my brakes upgraded to the 996 Porker refurbished upgrades supplied by Albert.

    Brakes, discs and fluid have been changed, brakes when pushed hard are immense but there is travel to get to that stage which is a little worrying..?

    Has anyone else found this, would the original master cylinder not be up to this type of upgrade and if so, can people recommend a replacement or point me in another direction??

    Thanks in advance,

    Audiudo

  • pasbogdan
    S2Forum Extremist
    • Sep 2009
    • 1160
    • Country: Romania

    #2
    Check bleeding again,or the pump itself.I have 8 pot calipers on the front and 4 pot on the back and stock master pump still pushes enough brake fluid to keep the pedal in the upper region.

    Comment

    • jsol
      S2Forum Addict
      • Jul 2011
      • 353
      • Country: Australia

      #3
      Yeah I agree. Stock master can cope. Give it a good bleed. You have speed bleeders?

      Comment

      • Tom_
        S2Forum Extremist
        • Oct 2007
        • 1302
        • Country: Czech Republic

        #4
        speed bleeders? Now i google it,and its looks good...are they for Coupe quattro 20v as well?It could be used only on master cylinder and proportioning valve? On calipers not?because of hozintal/vertical position?
        Last edited by Tom_; 23 September 2015, 05:44.
        Audi Coupe Quattro 2.3 20V

        Comment

        • Albert
          S2Forum Extremist
          • Aug 2003
          • 1500
          • Country: Poland

          #5
          the calipers where put upside down ! you cant vent them correctly now

          Change sides left one should be on your right and the other opposite. Vents up !
          AKmotorsport.net - Manufacturing Motorsport parts that do the job. | Audi S2 on Facebook | Best way of reaching me is sending email to albert@akmotorsport.net

          Comment

          • jsol
            S2Forum Addict
            • Jul 2011
            • 353
            • Country: Australia

            #6
            Yeah you have to swap the cross over pipe with the bleeders. At this time it makes sense to swap in speed bleeders.

            Comment

            • Albert
              S2Forum Extremist
              • Aug 2003
              • 1500
              • Country: Poland

              #7
              They might crack.

              It is more easy to just swap the sides of the calipers
              AKmotorsport.net - Manufacturing Motorsport parts that do the job. | Audi S2 on Facebook | Best way of reaching me is sending email to albert@akmotorsport.net

              Comment

              • Audiudo
                S2Forum Hobbyist
                • May 2015
                • 24
                • Country: United Kingdom

                #8
                Hi all, would this be causing an issue with the braking performance though? I'm not sure they finally got installed like this as the picture above was just testing fitment. Will check when I get back later??

                Albert, have you any other ideas to help with the brake pedal travel?

                Many thanks for all your comments..

                ATB Audiudo

                Comment

                • Albert
                  S2Forum Extremist
                  • Aug 2003
                  • 1500
                  • Country: Poland

                  #9
                  If they are instsled like this than this is the issue tousing problems. You have some air there and it gets commpressed.It is all.
                  AKmotorsport.net - Manufacturing Motorsport parts that do the job. | Audi S2 on Facebook | Best way of reaching me is sending email to albert@akmotorsport.net

                  Comment

                  • jsol
                    S2Forum Addict
                    • Jul 2011
                    • 353
                    • Country: Australia

                    #10
                    Oh, I can't see any pictures. Whenever I have used 18z calipers I swap the pipe/bleeders as the pistons end up in the wrong orientation if one side is swapped to the other (L to R etc). Bleeders to the top dude!

                    Comment

                    • Tom_
                      S2Forum Extremist
                      • Oct 2007
                      • 1302
                      • Country: Czech Republic

                      #11
                      albert, u cant just change left caliper for right caliper and opposite...Because if u have one piston bigger and one smaller piston in caliper, always is that smaller piston get the brake disc first...And i am not sure if you change sides it will not problem with bolt-on...I think always is left and right side calipers...
                      Audi Coupe Quattro 2.3 20V

                      Comment

                      • Tom_
                        S2Forum Extremist
                        • Oct 2007
                        • 1302
                        • Country: Czech Republic

                        #12
                        and calipers bleeders are always on the top of the caliper, isnt it?

                        mine

                        some posche brembos
                        Audi Coupe Quattro 2.3 20V

                        Comment

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

                          #13
                          Bleed nipples at the top. Small piston must always be at the leading edge of the pad, large piston at trailing edge.
                          They are a pain to bleed sometimes, I had an issue recently with some trapped air. Bleed at least 500ml fluid through each caliper. Also cycle the pistons in and out to shift any pockets of trapped air.
                          Also check the hub is perfectly clean and that the disc has no run-out when mounted - that will push the pistons back into the bores and cause a spongy pedal.
                          Panthero Coupé quattro 20vt
                          Indigo ABY coupé
                          Imola B6 S4 Avant

                          Comment

                          • Tom_
                            S2Forum Extremist
                            • Oct 2007
                            • 1302
                            • Country: Czech Republic

                            #14
                            Alex, can i remove calipers, where bolts are on loctite glue?Can i reused the bolts? around 2km ran these bolts
                            Audi Coupe Quattro 2.3 20V

                            Comment

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

                              #15
                              I don't think you need to loctite the bolts
                              You can reuse OEM bolts
                              Panthero Coupé quattro 20vt
                              Indigo ABY coupé
                              Imola B6 S4 Avant

                              Comment

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