Rear Brake Lockup Help, Help |
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Rear Brake Lockup Help, Help |
spaceshuttle |
Nov 15 2014, 10:42 AM
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#1
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Member Group: Members Posts: 73 Joined: 25-November 06 From: SouthCarolina Member No.: 7,258 |
I am running larger 4 piston Outlaw (read Willwood) calipers on the front of my v6 track car, with 911 M calipers on the rear. I installed a brake bias adjuster knob initially but my rears lockup under heavy braking no matter the adjustment. Switched to a Tilton bias adjustment with the notched rod with multiple positions and still no change. I cannot tell that there is much difference in the pressure to the rears. They will lockup no matter the position under heavy braking. They are not sticking. Not sure which direction to go from here. I am running Hawk blues front and rear. Perhaps a less aggressive rear pad? And yes the factory proportioning valve was removed.
thanks for any help guys. LC |
stownsen914 |
Nov 19 2014, 09:58 AM
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#2
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Senior Member Group: Members Posts: 928 Joined: 3-October 06 From: Ossining, NY Member No.: 6,985 Region Association: None |
Strange that they keep locking up even with the bias dialed back. I would think that should do it, plus you get some natural proportioning wtih the front calipers being larger than the rears.
Silly question - is your aftermarket prop valve installed in the rear brake circuit like the stock one? Scott |
Randal |
Nov 19 2014, 02:34 PM
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#3
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Advanced Member Group: Members Posts: 4,446 Joined: 29-May 03 From: Los Altos, CA Member No.: 750 |
Strange that they keep locking up even with the bias dialed back. I would think that should do it, plus you get some natural proportioning wtih the front calipers being larger than the rears. Silly question - is your aftermarket prop valve installed in the rear brake circuit like the stock one? Scott We took out the rear proportion valve and simply put in a T fitting. So no proportioning what so ever. Then started playing with the different pads, but actually the first attempt fixed the lockup, i.e., elcheapo pads instead of the Hawks. And to be honest I really like the set up as I don't have to deal with lockup on a hill where a lockup could get ugly. |
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