Has anyone who has added rear discs ended up changing the master cylinder? I added them several weeks ago and although the car stopped well, I noticed that there is excessive pedal travel which I have read can happen if you don't upgrade to a disc/disc master cylinder. My question is which master cylinder would be best to use? I have found one (can be seen here:http://www.mpbrakes.com/masters.htm ) that might work, but the fittings face the passenger side. I have also read that the M/C from a '67-'76 Corvette is a near bolt on, but I am not sure about that. Anyone have any insight?
Technical Article Mark congrats on the upgrade!!! Sorry, no info here to help you other than I have read some where the same thing. Question have your or are you going to write a how to article? Forgive me if this came up before, but what kind of setup did you go with in order to put the rear disk brakes on? Sounds like a great mod!!! Do have any pictures?
I have one of the pictures uploaded...this is basically right at the end of the upgrade: I took the "easy" way out and I ordered a Stainless Steel Brakes Corporation kit for 8" Ford Rear ends.(http://www.stainlesssteelbrakes.com/ ) I also took the opportunity to have the rear end rebuilt(had an "Equi-Loc", which an equivalent to the Trac-Loc installed as well), and I replaced the rear wheel bearings which made things more complicated. I kept the 3.00. I ordered the kit from Summit...was more expensive than some of the other methods of obtaining rear discs at a little less than $600, but for the price I got a very straight forward install that includes provisions for a parking brake. (only snag is that now the cables from the rear wheels are a bit too short...still working on how to deal with that...) I took pictures during the install, but as usual, I am behind in creating an article or posting them all to my site. Overall the brakes seem to work real well, although I didn't get too much road time before the snow and salt flew around here. I could probably even live without a different master cylinder, but if I could reduce the pedal travel a little, that would be cool
I can't figure out why sometimes the images appear as links instead, even when using the correct vB IMG tag....
sweet. That's a nice looking setup! Did the swap to discs change your mounting flange offset at all? I've heard of some people having this problem.
I put rear disc on mine last summer. Still using the original master cylinder. My pedal feels great. It took extrq bleeeing of the system to accomplish this. I am going to deal with the park brake issue this winter. My plan is to stretch the bracket on the bottom side of the car. I will do this in January and will document what I do. Dan
in my opinion i think you would have more trouble with your metering block than your master cylinder.....with disc/drum brakes the block restricts the flow of fluid back to your rear brakes because the pistons are smaller than the caliper pistons on the front......one thing i have heard of people doing when they do a swap likek that and the rear calipers are big bored pistos is to swap the lines around at the metering block to send more fluid to the rear. i have heard of racers doing this but never seen it done personally
If the metering block is restrictive, I don't see why you couldn't just bore out orifices a little bigger?
