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Power Brakes Without Removing Heater?

Discussion in 'Early CJ-5 and CJ-6 Tech' started by GeoffreyL, Feb 9, 2017.

  1. Feb 9, 2017
    GeoffreyL

    GeoffreyL Active Member

    moorestown, nj
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    Aug 1, 2012
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    1,481
    I've searched and searched and cant find any threads on this. Has anyone done or seen a power brake setup using frame mounted pedals or firewall mounted that don't require removing the firewall heater? I want to go 4 wheel disk and add power brakes if i can. I have a 66 with the fhead.
     
  2. Feb 9, 2017
    supertrooper

    supertrooper Member

    moreno valley, ca
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    Nov 12, 2007
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    427
    i dont know if the ross steering box would get in the way but you might be able to use a hydroboost booster with the frame mounted pedals.
     
  3. Feb 9, 2017
    GeoffreyL

    GeoffreyL Active Member

    moorestown, nj
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    I plan on changing it to powersteering with a saginaw box.
     
  4. Feb 9, 2017
    timgr

    timgr Jeepin' Nerd Sponsor

    Medford Mass USA
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    Aug 10, 2003
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    You can slave a power booster to the original hydraulic cylinder. Remote boosters are widely available, typically electric for hot rods. The Best in Brakes & Steering...

    The main issue is having both a dual cylinder and power brakes. There are vintage solutions for single-circuit systems - look at "hydrovac."
     
  5. Feb 9, 2017
    Mcruff

    Mcruff Earlycj5 Machinist Sponsor

    Albertville, AL
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    Sep 22, 2002
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    4,640
    Just asking, why do you want power brakes with 4 wheel disk. Front disk without a power booster can stop you scary fast.
     
  6. Feb 9, 2017
    GeoffreyL

    GeoffreyL Active Member

    moorestown, nj
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    Aug 1, 2012
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    I wasn't sure how well a manual master would be with both the front and rear being disk vs half disk/half drum. I have been looking at the corvette style masters and they are available for 4 wheel disk, maybe that is the way to go.
     
  7. Feb 9, 2017
    Norcal69

    Norcal69 Member

    Cottonwood, Ca
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    Sep 6, 2014
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    527
    I currently have gm midsize disc brakes up front and 10" drums in the back with dual reservoir master cylinder and stock pedals. I can stop very fast. That being said, I stumbled across a gm full size brake setup for free, so I will be moving the midsize disc to the read and installing the full size K10 brakes on the front.
     
  8. Feb 9, 2017
    Keys5a

    Keys5a Sponsor Sponsor

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    Some of the British sports cars in the 1960's (Jaguar sedans, big Healey's, Sunbeam) used a remote vacuum booster as Tim alluded to in post 4. I have seen a couple photos of our early CJ5's posted here with a big remote vacuum chamber on the inner fender, though I have never seen one in person.
    A properly sized master cylinder/caliper will produce excellent brakes without the need for power boost.
    -Donny
     
  9. Feb 9, 2017
    tarry99

    tarry99 Member Sponsor

    Northern California
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    Cover all the bore and volume sizes in both the master and calipers F/R and also the pedal ratio............and you should be fine
     
    GeoffreyL likes this.
  10. Feb 11, 2017
    Daryl

    Daryl Sponsor Sponsor

    Bonney Lake, WA
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    May 25, 2006
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    2,499
    Herm has a booster kit that works with a single pot master.
     
  11. Feb 11, 2017
    Howard Eisenhauer

    Howard Eisenhauer Super Moderator Staff Member Sponsor

    Tantallon, Nova...
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    Nov 22, 2003
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    4,801
    Power Brake Booster Kit | Herm The Overdrive Guy

    That's a VH44 booster + bitties, previously used on British/European small cars as a brake booster, now commonly used as a clutch booster by racers with gonzo stiff clutches. You can get a kit off ebay for about half that.

    Discussion on how there things work-

    Brake input from those that did various upgrades

    They work well but not really suited for dual MC's unless you have room for two. :whistle:

    H.
     

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