Vacuum servo/Turbo related

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  • Puglife
    S2Forum Maniac
    • Jun 2006
    • 731
    • Country: United Kingdom

    #1

    Vacuum servo/Turbo related

    Does anyone here (most likely coupe converted turbo cars) run a vacuum assisted servo? Reason i ask is because I'm looknig to convert my UR quattro from Hydraulic ATE servo to a vacuum one. Car is currently Bare shell and so removal, building up of brake system etc isn't a major. I know a vacuum servo needs a 1way valve to maintain a vacuum but I'm curious as to if anyone has photos of their system in place.

    Any help appreciated.
    Jay - pug_life85@hotmail.com

    1986 Audi UR quattro - WORK IN PROGRESS
    1981 VW Mk1 Golf - "20v Jim, but not as we know it!"
  • kwlw
    S2Forum Extremist
    • Sep 2004
    • 1025
    • Country: Lithuania

    #2
    Originally posted by Puglife
    Does anyone here (most likely coupe converted turbo cars) run a vacuum assisted servo? Reason i ask is because I'm looknig to convert my UR quattro from Hydraulic ATE servo to a vacuum one. Car is currently Bare shell and so removal, building up of brake system etc isn't a major. I know a vacuum servo needs a 1way valve to maintain a vacuum but I'm curious as to if anyone has photos of their system in place.
    This was done many times by different persons with success. I'm also running turbo with vacuum assisted brakes. Simply do not allow boost on small one way valves (biger ones, or ones from turbo cars hold it OK), and if you think, that you may need lfb in some point of your life - use additional vacuum reservoir (like I do) after one way valve mentioned before. I'm using rear difflock one, placed near the place in which bomb is located on the urq.

    Sau
    200 20vt 88' 3b, human carrier
    CQ typ85 with AAN inside, see project blog at http://kwlw.blogspot.com

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    • Pirvu Eugen
      S2Forum Extremist
      • Apr 2007
      • 1978
      • Country: Romania

      #3
      I am using the same system in my coupe. One way valve and no vacuum reservoir, is good to have one but no place to fit to me. No problem till now. i will post some pictures.
      All the best!
      Don't forget to remove completly the pistons from the pump from the high pressure side!
      Hope this helps!
      Eugen

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