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Thread: New rear disk brakes question

  1. #1
    Senior Member MASTER BUILDER
    Join Date
    Feb 2008
    Location
    New Jersey
    Posts
    133

    New rear disk brakes question

    I just upgraded from rear drum to strange disk brakes. I replaced the stock master with a wilwood unit reccomended by wilwood .. I have spent alot of tiime being sure the system is bled well. Strange reccomends 600- 700 psi to rear and 1000 to 1100 front i have the rears set at 650 adjusted by proprtioning valve.
    I notice the pedal seems "softer" ..i have no passes on this new setup yet.. The pedal with the drums and stock master cyl was a "firmer"
    Will the pedal change after i use the brakes a few passes???

    thanks
    Keith

  2. #2
    Senior Member MASTER BUILDER
    Join Date
    Mar 2003
    Posts
    127
    steel brake lines or steel braid lines?

  3. #3
    Senior Member MASTER BUILDER
    Join Date
    Feb 2008
    Location
    New Jersey
    Posts
    133

    brakes

    have steel then a 14in braided flex just to the front calipers.. then flex back at the rear for flexibility to a t then steel to the rear calipers.

    thanks

  4. #4
    Senior Member RACING JUNKIE
    Join Date
    May 2003
    Location
    Coldwater, MI
    Posts
    2,998
    A few questions here,

    1. did you bleed the master cyl also ?

    2. Do you have a residual valve on it ?

    3. Did you bleed both sides of the caliper ?
    David Lanning
    IHRA NHRA 387B

    Fleenor Racing Transmission
    419-280-1406
    Lanning Electric
    Complete Drag Car Wiring
    APD Race Engines
    www.apdracing.com

  5. #5
    Senior Member MASTER BUILDER
    Join Date
    Feb 2008
    Location
    New Jersey
    Posts
    133

    brakes

    Yes i did bleed the master... with the lines hooked up and fed back to front and rear sump of the master.
    I do not have a residual valve... but i do have a proportioning valve.With the rear pressure set per strange 650psi
    As far as the bleeding... i was up on the lift in the car pumping the pedal.. so i better ask my buddy if he did both.

    thanks for the responses
    Keith

  6. Racing Junk


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