another brake question/ conversion time

ok, so i've been trying to replace the booster and master cylinder on my 60 catalina. there are no repop boosters, so i had to get creative. i also really wanted to have a dual resevoir set up.

can someone tell me what the difference is between a master cylinder for drums and one designed for disks?

i picked up a new master cylinder/booster combo for a mid 70's corvette. (bought it cause it's almost a direct bolt on application) the only issue i see is that the master cylinder is a set up for disks up front.

is this set useable as is? do i need to add anything? or do i just need to go return the damned thing?

any help is appreciated, and if i completely fucked up, go ahead and tell me that as well!!

 

I'm pretty sure you need a master cylinder designed for drums rather than discs, but I'm not positive. MP brakes has an online catalog and at the end they have three pages of boosters and master cylinders with all dimensions. I'ts a good reference if you're looking for a different m/c. Their website is www.mpbrakes.com

 

i checked that site, and didn't really find any answers. they talk about running a drum style m/c to disks, but not the other way around.

as for using one of their products, hot damn that shit is spendy. damn near 400 bucks for a booster and m/c? i'll cut a hole in the floor and change my last name to flinstone before i go that route!

 

bttt

somebody out there has to have some info for me.....

 

I used a disc drum master for awhile with 4 whl drums. The fronts were always touchy and the rears needed to be adjusted manually they wouldn't ajust themselves as they were supposed too.

 

You need to add 10 psi residual pressure valves on both ends, then it should work.

 

[ QUOTE ]
You need to add 10 psi residual pressure valves on both ends, then it should work.

[/ QUOTE ]

Ditto. I did it on a 63 galaxie and it worked like a charm

 

i was wondering if that was the case. does it matter where these are placed? can i place em just a few inches off the master, or do they need to be further down the line closer to the actual brakes?

ah, second question then. can i still use the existing splitter block? ya know, one line running in from the master, 3 running out....

i was hoping to just block off the exit for the rear brakes, then just connect that existing rear line to the m/c.

on the fronts i was just going to run the line from the front portion of the m/c into the existing splitter box. (with the residual pressure valve in line) of course the rear line exit would be plugged.

will this work?