Ever think of useing an auto dual system master cylinder when hooking up disimilar brakes? When building street rods the GENERAL rule of thumb is 7 to 1 for the pedal leverage. Cylinder size is alot more complicated. The smaller the master the more pressure you will have but at a loss of volume. I learned the hard way that if you mount a master cylinder so that it will be lower at anytime than the slave it needs a check valve in the line. This applys to disc as well as drum brakes. Speedway Motors in Lincoln Ne used sell an adjustable proportioning valve for about $50. That was a few years ago so the price is probibly way off. Hope some of this helps.
David
David,
You mentioned Speedway Motors...Excellent source for parts adaptable to sidecars. They also offer free catalogs .
Another place woth looking at is StockCarProducts.com. who also offer a free catalog.
Summit Racing has quick adjustable lever style proportioning valves for $75.95. Part # WIL-260-8420
1-800-230-3030
