Manual disc brakes vs power disc brakes questions
I bet the flip flopping of the master cylinders in this chart has something to do with the bracket and linkage setup on A bodies behind the master cylinder changing the pedal ratio. Notice the V-L power disc brake MC .937" bore is the same as V-L 9" drum brake cars, however the V-L with manual discs use a 1.031" or 1&1/32" bore MC
Now look at B-J-R-W car line manual disc with 2.75" calipers. Its listed as 1.0" bore. This setup is mounted to the firewall no progressive linkage. B-J-R-W car line with power discs on 2.75" calipers uses a 1.031" or 1&1/32" bore MC with power brakes.
Not sure in the V-L but the power brake linkage behind the booster may slow down, or speed up the rate the piston moves, it may act like a force multiplier. kind of like a lever and fulcrum arrangement does.
I bet the flip flopping of the master cylinders in this chart has something to do with the bracket and linkage setup on A bodies behind the master cylinder changing the pedal ratio. Notice the V-L power disc brake MC .937" bore is the same as V-L 9" drum brake cars, however the V-L with manual discs use a 1.031" or 1&1/32" bore MC
Now look at B-J-R-W car line manual disc with 2.75" calipers. Its listed as 1.0" bore. This setup is mounted to the firewall no progressive linkage. B-J-R-W car line with power discs on 2.75" calipers uses a 1.031" or 1&1/32" bore MC with power brakes.
Not sure in the V-L but the power brake linkage behind the booster may slow down, or speed up the rate the piston moves, it may act like a force multiplier. kind of like a lever and fulcrum arrangement does.
