I have followed with great interest the separate discussion that has been underway by
RATRODKING on his conversion to power brakes and the various aspects of it. One item that still has me somewhat puzzled even after the information and associated link from
Richard is the function, use and installation requirements of the Combination Valve.
In my particular instance I will be running an 8" dual diaphram power assisted 1" master cylinder
http://www.mbmbrakeboosters.com/Mas...le-Cast-Iron-Master-Cylinder-1-Bore.html that I already have under the truck. I plan to keep the 6 bolt front set up, so I will be using mid 70's calipers and rotors from a Chevy Blazer that I purchase locally and brakets I already have from Buffalo Steve.
What I have not figured out is the best way to plumb this and how to determine what combination valve to use. My intial plans were to not use one, and just put an adustable one rear of the 10 lb residual valve for the rears, and run a 2 lb residual for the front and tee forward of that to the cylinders. Now however, it seems a combination vavle is a better idea, but what one do I choose? I have not been able to find much detail on differences, but I would think they would have to be designed for the particular application to account for vehicle weight and distribution? Also, do I need to 2 lb residuals since the combination valves seem to have separate outlets for each front wheel?
Thanks.
