Register now to get rid of these ads!

Technical Do I need a brake power booster?

Discussion in 'Traditional Customs' started by LIVFRD, May 18, 2018.

    Joined: May 29, 2013
    Posts: 27


    '54 F100, swapped the stock front drums for disc conversion kit from Speedway (11" '76-'81 Dodge Aspen brake rotors and GM single piston iron calipers (7/16"-20 inlets) from a '70-'77 Camaro).

    Kept the original drums in the rear. Engine is 239 Y-block.

    When converting the master cylinder over, do I need a brake power booster or is a new dual chamber with proportioning valve sufficient? I would like to keep the master cylinder mounted where it it (under the floorboards)

    Thanks for any advice.
  2. Atwater Mike
    Joined: May 31, 2002
    Posts: 10,092

    Atwater Mike

    My son did this on his '55 F100, his M/C is still under the floor, original pedals. He used a Maverick dual master cyl. with the proportioning valve. Excellent, in fit and performance...
    His info came from the disc brake company (three initials, can't remember them) they have all the info on line.
    Biggest thing was the price savings he gets, using on line "ROCK AUTO". I've used them for various things, especially engine gaskets and some 'hard parts' for my 406 F.E.
    lothiandon1940 and LIVFRD like this.
  3. George
    Joined: Jan 1, 2005
    Posts: 7,241


    the booster just reduces the effort involved.
    LIVFRD likes this.
    Joined: May 29, 2013
    Posts: 27


    Register now to get rid of these ads!

  5. Jalopy Joker
    Joined: Sep 3, 2006
    Posts: 24,934

    Jalopy Joker

    there are power boosters that will mount under floor - look at, and others - make sure that motor has proper vacuum rating to use power booster
  6. squirrel
    Joined: Sep 23, 2004
    Posts: 46,120


    depends how strong your legs are. I don't have any problem with manual disc brakes, but some folks do.

    The dual master cylinder isn't really necessary, but most folks add one, just because. Make sure you pay attention to the bore size of the MC if you change it, 1" bore will make it easier to operate the brakes. If you do add a dual cylinder, also make sure the system will make pressure while you have a bleeder open on one side. Otherwise, adding the dual was a complete waste of effort.
    lothiandon1940 likes this.
  7. Happydaze
    Joined: Aug 21, 2009
    Posts: 935


    CPP? ABS? Both do retro fit brake upgrades. Sure there's others, but those are 3 letter versions that I can recall.

    In my limited experience if you're going to have a booster a 7" single is pretty much like not having one! 8" dual gives good assistance.

    Special Ed likes this.
    Joined: Oct 22, 2017
    Posts: 106


    i did 4 wheel disk on my booster works can get a master with electric booster built in that makes a nice system.....mite be the way to go if you are not wanting to push hard on the brakes....
  9. seb fontana
    Joined: Sep 1, 2005
    Posts: 6,470

    seb fontana
    from ct

    AMB American Master Brakes or MBS Master Brake Service or systems?
  10. I used one on the wife's Ranch Wagon but I don't use them on my hot rods. HRP
    lothiandon1940 likes this.
  11. Boneyard51
    Joined: Dec 10, 2017
    Posts: 4,018


    79CC5F37-81A6-4040-8992-9EFDD25068D2.jpeg My ‘65 Country Seadan has front disc and stock rear drums, with a non-power dual master cylinder. Car stops just fine. Bones
  12. saltflats
    Joined: Aug 14, 2007
    Posts: 10,088

    from Missouri

    ECI Maybe?
    Frank Carey and bct like this.
  13. I'm running non-powered discs on the front of my '59 Ford and it stops easily enough.
  14. Rogue63
    Joined: Nov 19, 2010
    Posts: 228

    from New York

    Booster under floor,disc in front use 2lb to front if you keep drums in back use adjustable proportion to rear and a 10lb to rear. If calipers are higher than master they will bleed back to master.

    Sent from my iPhone using The H.A.M.B. mobile app
  15. alchemy
    Joined: Sep 27, 2002
    Posts: 15,520


    ECI is a very good company for brakes and parts.

Share This Page

Register now to get rid of these ads!


Copyright © 1995-2020 The Jalopy Journal: Steal our stuff, we'll kick your teeth in. Terms of Service. Privacy Policy.

Atomic Industry
Forum software by XenForo™ ©2010-2014 XenForo Ltd.