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Thread: Wilwood Brakes

  1. #1
    Senior Member RACING JUNKIE
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    Wilwood Brakes

    Ok I started converting my car to Wilwood discs with the 4 piston calipers back in the spring before that big flood...and I am just now getting back to working on it. Well I got it all finished up this weekend and man oh man do those things drag a bunch....question is is that normal? I have spent a great deal of time making sure the calipers are mounted square to the rotor and centered. I have a disc drumb MC made for that year of Nova...3/16 line to -3 ss hoses....They spin free as a bird with the pistons squeezed back but as soon as you hit the brakes the first time there is alkl kinds of pedal and the brakes do release but they do not spin too free. I can turn them but they don't spin. Now, with the wheel and tire on they will spin some but not much. I thought maybe the pushrod was too long for the MC but I unbolted MC from firewall and it is no different. Do all these wilwood calipers drag quite a bit or do I have something wrong?

    Another odd thing....if I take the lid off the MC and pump the pedal...I get a fountain of fluid when I push the pedal but not when it returns...that seems backwards to me. I also Have the fronts hooked to the big resevoir in front and the rears to the smallest in back...factory distribution block is gone and I have an adjustable prop valve to the rear only. Fronts hook direct with onl6y the line lock between the MC and calipers.

  2. #2
    Senior Member RACING JUNKIE mytmouz's Avatar
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    May 2006
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    Here is a part # for a master that is an equivalent to the Strange and Wilwood without the price. Napa # UP39476. Whether this will solve your problem with the dragging brakes I don't know, but this master has the save volume of fluid and the same size pistons for the front and rear...
    If you think nobody cares, try missing a payment...

  3. #3
    Senior Member RACING JUNKIE
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    tod there should be several washer like spacer with kit, used between caliper bracket, and the caliper, to get the proper spaceing, hope this helps.

  4. #4
    Senior Member RACING JUNKIE
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    Quote Originally Posted by itsabird
    tod there should be several washer like spacer with kit, used between caliper bracket, and the caliper, to get the proper spaceing, hope this helps.
    I did that...thanks.I spent several hours playing with the shims trying to fix it. the calipers appear to be perfectly centered. I think maybe the caliper isn't quite square to the rotor but I can't get it any better...they don't drag any more than the drum brakes did but I can't believe this is normal. If I spin the wheel with tire off ground it will only make about 1-1 1/2 revolutions.

  5. #5
    Senior Member RACING JUNKIE lively's Avatar
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    THAT IS NORMAL---- 8) 8)

    LIVELY

  6. #6
    Junior Member JOURNEYMAN
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    Oct 2004
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    I have the same problem with my Wilwoods to.

  7. #7
    Senior Member RACING JUNKIE
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    Well it will be considered normal for me cause I can't get it no better...lol

    Thanks guys

  8. #8
    Senior Member EXPERT BUILDER
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    Jan 2007
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    atwood,Ky
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    i had an older set do that took the cal. apart put never seize on it and that seemed to help alot.though that might help,john


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