Euro S50 and Brake Boosters

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  • IanS_in_Oz
    Member
    • Jan 2010
    • 75

    #166
    I used a VW Golf (Rabbit) Mk I booster with a MB 280SE master cylinder. Its a 23mm bore straight through. Everything bolted together with no mods, and the brake feel and performance is excellent.
    sigpic
    BumbleE30 M52 2.8i

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    • sonnyqm3
      Banned
      • Sep 2009
      • 1144

      #167
      Originally posted by IanS_in_Oz
      I used a VW Golf (Rabbit) Mk I booster with a MB 280SE master cylinder. Its a 23mm bore straight through. Everything bolted together with no mods, and the brake feel and performance is excellent.
      I am going to see how it goes with geo booster and the e30 m3 MC first.

      Comment

      • sonnyqm3
        Banned
        • Sep 2009
        • 1144

        #168
        Geo Metro booster

        today we modified a Geo Metro booster (small version) and mate it with e30 m3 master cylinder. It wasnt a direct fit since we had to modify the MC housing and the inner shaft of the booster. I know it will be much better than having the Geo MC for sure..

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        • IanS_in_Oz
          Member
          • Jan 2010
          • 75

          #169
          Here's some pics of the Mercedes 280SE master cylinder in the engine bay with the Golf MK I booster.







          Plenty of room around the intake :)
          sigpic
          BumbleE30 M52 2.8i

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          • atldohc
            Grease Monkey
            • Nov 2008
            • 359

            #170
            thats not a euro s50 engine

            Comment

            • IanS_in_Oz
              Member
              • Jan 2010
              • 75

              #171
              no its a euro M52. Just showing the room with the different MC.
              sigpic
              BumbleE30 M52 2.8i

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              • sonnyqm3
                Banned
                • Sep 2009
                • 1144

                #172
                it looks relatively small but I dont know if that will work with the euro s50b32. I got the Geo booster to work with the e30 m3 MC for now. I am still searching for other options though. I think this set up will work fine.. I am all done just have tuck all the wires and clean up the engine bay then comes the bodywork/paint..

                Comment

                • Massive Lee
                  R3V OG
                  • Sep 2006
                  • 6782

                  #173
                  The Mercedes-Benz booster seems to be 2" smaller than the e21-2002 booster. I think it is a more acceptable method as it is accept a BMW/M-B MC without modification.

                  Lee
                  Brake harder. Go faster. No shit.

                  massivebrakes.com

                  http://www.facebook.com/pages/Massiv...78417442267056





                  Comment

                  • DaveSmed
                    E30 Fanatic
                    • Apr 2007
                    • 1406

                    #174
                    The overall length is a concern as well, as mentioned here (http://r3vlimited.com/board/showpost...9&postcount=64) The Aisin setup is very short.

                    Compare the end of the MC to the beginning of the plenum inlet.



                    I wish I could remember what Aisin MC I went with....
                    -Dave
                    2003 Lincoln Towncar | 1992 BMW 325iC | 1968 Cadillac Deville

                    Need some help figuring out the ETM?

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                    • sonnyqm3
                      Banned
                      • Sep 2009
                      • 1144

                      #175
                      e30 m3 master

                      Originally posted by DaveSmed
                      The overall length is a concern as well, as mentioned here (http://r3vlimited.com/board/showpost...9&postcount=64) The Aisin setup is very short.

                      Compare the end of the MC to the beginning of the plenum inlet.



                      I wish I could remember what Aisin MC I went with....
                      The master is a bit long, it doesnt interfere with the CF box but the reservoir might. So I might do a lil bit of plumbing work to raise the reservoir.. I am still working on this swap and I am going perfect it as much as I can..

                      Comment

                      • Taper
                        Member
                        • Aug 2007
                        • 69

                        #176
                        Today I ride my M3 with your M/C and the car brake less than my sister's brakeless bike :-?


                        I run oem pads, discs and calipers at 70% of life.


                        I can't lock the wheels in gravel and I run the car in tarmac and I almost injuried my quadriceps to obtain the same deceleration of this guy



                        What's up with this M/C??¿

                        Comment

                        • Massive Lee
                          R3V OG
                          • Sep 2006
                          • 6782

                          #177
                          I tested the Geo Metro booster about 4 years ago and didn't really like it as it offered barely no assist.
                          Brake harder. Go faster. No shit.

                          massivebrakes.com

                          http://www.facebook.com/pages/Massiv...78417442267056





                          Comment

                          • sonnyqm3
                            Banned
                            • Sep 2009
                            • 1144

                            #178
                            Originally posted by Massive Lee
                            I tested the Geo Metro booster about 4 years ago and didn't really like it as it offered barely no assist.
                            geo Metro with BBK's is working pretty good on my car.. I wish I had a BMW booster though!!!

                            Comment

                            • Jean
                              Moderator
                              • Aug 2006
                              • 18228

                              #179
                              Why not relocate the whole thing behind the headlight and have all the room you need?
                              Mtech1 v8 build thread - https://www.r3vlimited.com/board/sho...d.php?t=413205



                              OEM v8 manual chip or dme - https://www.r3vlimited.com/board/sho....php?p=4938827

                              Comment

                              • Jason89i
                                E30 Modder
                                • Sep 2004
                                • 875

                                #180
                                Originally posted by Taper
                                Today I ride my M3 with your M/C and the car brake less than my sister's brakeless bike :-?


                                I run oem pads, discs and calipers at 70% of life.


                                I can't lock the wheels in gravel and I run the car in tarmac and I almost injuried my quadriceps to obtain the same deceleration of this guy

                                What's up with this M/C??¿
                                what diameter of master? if pedal effort is too great, you need a smaller diam master.

                                I have tried most of the asians and found that none work due to volume. the asian masters are 5mm shorter in travel distance. so, if get the diameter right, the pedal will feel like a stock m3. unfortunately you run the risk of bottoming out the master. see page 6 for the comparisons of masters.

                                stock m3 master has roughly 35mm of travel.
                                asian masters have roughly 30mm of travel.

                                i could get the asians to work "ok" on the street. but with track pads, the masters either did not pump enough volume or the pedal was way too stiff.

                                cheers, jason

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