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Brake Boosters

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  • Brake Boosters

    Just thought I`d show you all what I`ve been up to today.
    I have a booster and master cylinder from a 1986 audi 80. It is much bigger in diameter than the golf one and the master cylinder is less bulky.

    It has a collar which connects it to the audi, with four bolts bolting it to the booster and three bolting it to the car. If I remove this collar, it should match up with the golf studs and fit up to the brake rods.





    As you can see, i got the collar off. Now to match up to the golf bracket.



    The audi booster has a longer arm, but it has a thread on at the same point as the golf one. Now if I can undo the rod, I can mount it up....

    Easier said than done. Won`t shift. I`ve soaked it in penatrating oil and will try again on the morrow...
    sigpic Camden GTI Performance. VW / AUDI Specialists
    All Mechanical Work, Log book Servicing, New and used Parts and Imports
    19-20/6 Badgally Road, Campbelltown, 2560
    02 4627 3072 or 0423 051737 www.camdengti.com

  • #2
    See my brake post in Audi 100

    Brake post

    Comment


    • #3
      Got the end off the audi booster, but it is still too long. The rest of it all measures up. Am gonna get dubstaMk2 to cut and weld the two rods together.. Here are the two boosters. The Audi one is the larger.

      sigpic Camden GTI Performance. VW / AUDI Specialists
      All Mechanical Work, Log book Servicing, New and used Parts and Imports
      19-20/6 Badgally Road, Campbelltown, 2560
      02 4627 3072 or 0423 051737 www.camdengti.com

      Comment


      • #4
        to much effort

        boys boys boys can i let u in on a little scret
        i run a nine inch booster in my project golf for over a year gives a big improvement to braking performance the only thing is u have to be careful about the length of that rod very important can affect pedal height and travel. the other important thing is if u have up graded your brakes to much bigger u also need to up grade to a biggger master cylnder 22mm. i dont know what the booster came from but can tell u where to get it. GTI imports 96531114 im gonna put a post up 4 him
        owned a number of mk1 golfs have a collection of spare parts project golf is a 78 2 door

        Comment


        • #5
          This is a booster and master cylinder from an Audi 80, which is larger and stronger and so equal to putting a bigger booster from a Golf on. Obviously the rod has to be the same length and does have threads on, however, these were hard to remove without damaging the booster, so welding was easier. Thus you end up with a larger booster and master cylinder for a fraction of the cost of a Golf one from Brian. Last time I spoke to him, he was still promising bigger master cylinders and scirocco brake calipers, but not delivering. I know several people have had issues with dealing with him, and will not comment, but please also be a little restrained in your posts, as we do not want to read his name everywhere.
          People know where he is and thats cool, but he is not the only solution and the scene needs new input to grow.
          sigpic Camden GTI Performance. VW / AUDI Specialists
          All Mechanical Work, Log book Servicing, New and used Parts and Imports
          19-20/6 Badgally Road, Campbelltown, 2560
          02 4627 3072 or 0423 051737 www.camdengti.com

          Comment


          • #6
            Re: to much effort

            Originally posted by sydneymk1
            the only thing is u have to be careful about the length of that rod very important can affect pedal height and travel.
            Could this be the source of my problems with my Audi 100 brakes?? Is there a spacer in there that's dropped out or something?

            See my earlier posts in Audi "Brake Story".

            Comment


            • #7
              Re: to much effort

              I've just sourced a 22mm master cylinder from the states for cheap. I've heard a bigger servo is also needed to improve braking?

              Comment


              • #8
                Easier said than done. Won`t shift. I`ve soaked it in penatrating oil and will try again on the morrow..

                Those rod can be really, really tight. Having done this to many MK1s in my time. I have always managed to undo them. Sometimes a bit of 'heat' helped matters.

                I don't think cutting and welding is the best way to go.

                When you get the fork off you just need to get the length right by cutting of the correct amount of threads. I just measured from the mounting face of the original to the end of the fork.

                Apologies if I am stating the obvious to anyone.

                On another note, I fitted a servo off a Vauxhall Senator to my wifes mk1 GTI. This was a marvelous conversion. The assistance was incredible. It would out brake my 270mm disc and 22mm master cylinder and mk2 servo setup easily.

                Everything else was std on the car. You only got 2 good stops out of it before it overheated the pads. That could be sorted though. I always forgot about the brakes when driving it, nearly butting the screen and pulling up short at every junction.

                Gavin
                optimumcode@gmail.com | https://www.vwwatercooled.com.au/for...i-;-79012.html | https://www.facebook.com/TTY-Euro-107982291992533

                Comment


                • #9
                  I have unthreaded them before. This one had a really long arm on it, which did not have thread going down the rod far enough. Its welded and functional now, pics soon.

                  What year vauxhaul senator was it? and did it bolt straight on?
                  In Australia the vauxhal senator is the holden commodore and there are heaps of em!
                  sigpic Camden GTI Performance. VW / AUDI Specialists
                  All Mechanical Work, Log book Servicing, New and used Parts and Imports
                  19-20/6 Badgally Road, Campbelltown, 2560
                  02 4627 3072 or 0423 051737 www.camdengti.com

                  Comment


                  • #10
                    Originally posted by Golf Loon
                    What year vauxhaul senator was it? and did it bolt straight on?
                    In Australia the vauxhal senator is the holden commodore and there are heaps of em!
                    I thought there would be an Australian equivalent. It would have been a late 80s one. I just found the servo in a mates scrapyard. The bolt pattern was the same, I took a chnace that it would fit. Just had to get the rod the right length and 'warm up' the bottom of the expansion tank and jam it in. The bonnet would shut otherwise

                    Gavin
                    optimumcode@gmail.com | https://www.vwwatercooled.com.au/for...i-;-79012.html | https://www.facebook.com/TTY-Euro-107982291992533

                    Comment


                    • #11
                      Mate with a SCAPYARD!!!

                      h100vw.....You have a mate with a scrapyard??!! That must be like marrying a deaf and dumb nymphomaniac who's father owns a pub! We must talk re. diesel parts!

                      Comment


                      • #12
                        Re: Mate with a SCAPYARD!!!

                        Originally posted by brackie
                        h100vw.....You have a mate with a scrapyard??!! That must be like marrying a deaf and dumb nymphomaniac who's father owns a pub! We must talk re. diesel parts!
                        Sorry, to knock you back mate. He got out of the scrappy business a while ago. Bloody tree huggers and legislation. No more burning tyres to get 10 pence worth of steel out of them.

                        He jumped through loads of hoops, he had everything on hard standing, no more than 2 cars high blah, blah. Each time he complied they came up with some more BS to keep him busy.

                        He sells 4X4s now and just generally trades cars.

                        Anyway what are you looking for? Anything in particular? Like I said in my PMs I have contacts in VWs round and about. Like Jim at www.awesomegti.com I can't promise discounts but they do ship worldwide all the time.

                        Gavin
                        optimumcode@gmail.com | https://www.vwwatercooled.com.au/for...i-;-79012.html | https://www.facebook.com/TTY-Euro-107982291992533

                        Comment


                        • #13
                          Originally posted by Golf Loon
                          This is a booster and master cylinder from an Audi 80, which is larger and stronger and so equal to putting a bigger booster from a Golf on. Obviously the rod has to be the same length and does have threads on, however, these were hard to remove without damaging the booster, so welding was easier. Thus you end up with a larger booster and master cylinder for a fraction of the cost of a Golf one from Brian. Last time I spoke to him, he was still promising bigger master cylinders and scirocco brake calipers, but not delivering. I know several people have had issues with dealing with him, and will not comment, but please also be a little restrained in your posts, as we do not want to read his name everywhere.
                          People know where he is and thats cool, but he is not the only solution and the scene needs new input to grow.
                          Have got a 9" booster from a LHD rocco here, it also uses the longer rod. Checked out with my brake rebuilder about stripping the booster so I could cut and machine a thread on the shorter shaft, but VW's OEM supplier in their wisdom have made the booster unserviceable, there are some internal tabs that have to be destroyed to open up the unit. Still looking for a suitable 9" unit for modding to fit to the Mk1's tho. Haver seen the unit on the Audi 80's also., but it looks to be a small bore ??

                          Have been getting 10.1 caliper assemblies and bearing housings from the states. LMK if your wanting any .
                          Lots of MK 1 Scirocco's...

                          If it aint a MK 1 then it must be a donor car ??

                          Cheers,
                          Grant...

                          Comment


                          • #14
                            5 mniutes welding and the loons booster is ready to go simply as that,the damm thing has been rolling around in the back of my car for a week or two now
                            yer and dont bag out brian ehh he is the man

                            Originally posted by Preen59
                            I would have gotten wood from the picture message you sent me.. But I was sniffing Nitro, so i already had it. Hahaha.

                            Comment


                            • #15
                              brakes mk1

                              hi there I fitted a 9inch booster tomy mk1 early tis year, what a big improvement. The booster is standard for the late model mk1 cabs, but still runs a 20mm master cylinder. 22mm mastercylinder is proving to be elusive at this stage , well one that fits anyway as I have brought one out of the the US & was to short in the shaft I have not been able to come up with the right one to fit the big booster. the booster made agreat improvement on its own. speaking of holdens ect, do you all know that holden camera calipers (je,jd) will fit directly onto mk1 hubs & fit the 239mm disc's perfect. They are a much bigger caliper

                              We must be careful when cutting & pasting brake parts, as I am sure that none of it would ever get passed by an engineer

                              Comment

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