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Correction...... I'm using a 9" dual diaphragm booster, not a 7"

OK..... finally got some time to work on this!! I tried several combinations. I fabbed up a pedal assembly with a 6 to 1 ratio. I still have the factory 2.7:1 and I got a 7" dual diaphragm booster. Here was my testing: 1) 6:1 pedal assembly, 7" single diaphragm booster, 15/16" bore...

You're absolutely right!!! I suspect the actual pad movement (especially given a rigid fixed caliper) is more like 0.0125 instead of 0.125!!! I just picked that number for ease in my analysis. As far as the double diaphragm booster goes, that's an interesting idea. From what I've read I'll...

You're absolutely right!!! If the operator applies 100 pounds with a pedal ratio of 5:1 then 500 pounds are applied to the MC piston. If the MC piston has a diameter of 15/16 (common disc brake piston) then that 500 is distributed across an area of about 0.7 square inches. This would result...

I'm probably chiming it too late on this, but..... I have a 66 fury that the previous owner converted to power disc brakes. It has 4 piston fixed calipers on all 4 corners. Similar problem.... brake pedal goes about 2/3 of the way and is rock hard. I measured my brake pedal ratio and found...

For any of you interested...... I have found at least one resource that suggests that drum brakes do indeed run on considerably less pressure than disc brakes. The quoted figures were Drum --- 300 - 400 PSI Disc --- 900 PSI and higher With my factory 2.6 to 1 ratio that means I'd have to...

I considered that..... I've tried both a 1" and a 1.125" with the same result. In truth, the pressure is slightly lower with a larger bore. The larger bore moves more fluid, but at a lower pressure. I just can't get over the fact that Wildwood, Speedway Motors, Summit Racing, etc all suggest...

I'm not sure whether the car was a power brake car to begin with. I'm pretty sure it was a 4 wheel drum car. Here is a pic I came across in my online search. This is reportedly for a C body (with a manual transmission obviously) with power brakes. If you zoom in it appears as though the...

The quick question...... Does this look like a factory brake pedal assembly for a 1966 Fury? The long story ..... I used to run A bodies but not that I have teenage children I wanted something big enough for all four of us. So I bought this 1966 ragtop fury. When I bought it the previous...

I'm interested in your experience with the throttle cable in your fury. I recently acquired a 1966 big block fury and the previous owner installed a universal throttle cable. There's not much space and where it bends coming out of the firewall it's kinked and the throttle is thus very stiff...

Greetings FCBO Community! I recently picked up a 1966 Plymouth Sport Fury. I believe it was originally a 318 LA car but it has been converted to a 440. There is a bit of a laundry list of things to fix, but it's a good starting point for my two teenage kids and I. Most importantly, I'm...

Long time Mopar fan, mostly small block A bodies when I was young. Location: Boise Idaho