Re: 1953 Patrician: has anyone updated from Treadlevac to modern 2-chamber mstr cyl?

Posted by rzcoyote On 2022/7/13 23:12:36

Tim, thanks for your input. I started this project rather naively. I just thought that if I mounted a master cylinder, it would work. The effect of the pedal leverage had not occurred to me. Now, with no leverage, a 1" diameter master cylinder does not work. I am surprised to hear that the tiny Treadlevac actually produces as much boost, as you say. After all, it is only about 6" in diameter! Are the brakes in fact adequate with the original setup? And how effective are the brakes in an emergency, if the engine stalls and you lose vacuum?