iglooman wrote: ↑Tue Jun 13, 2023 6:26 am
A/FX wrote: ↑Mon Apr 06, 2020 1:06 pm
My opinion:
Forget what the “mechanic” told you. First off you do not need power assist for you brake system. I installed front discs on my Cyclone in 1974, I used an unboosted Ford master cyl. designed for a factory installed manual disc/drum system. It worked perfectly. During the recent rebuild I have installed four wheel disc brakes from Baer using a un boosted dual master from Master Power Brakes in Charlotte NC. this system uses a balancing/ proportioning valve.
I would suggest you contact a company like Master Power Brakes for their recommendation. Cutting the shock tower for clearance is not the answer.
Jim
So you mean like this one???
https://www.mpbrakes.com/pc_product_det ... 28DB04F02A
The reply I initially made to this thread is now over 3 years old. Since that time I have issues with the Master Power Brakes system. The master cylinder and adjustable pedal rod have worked just fine, the issue was with the combination valve that was supplied by MPB. (Keep in mind I am using Baer Brakes on all four corners) When the car was first finished and I was sorting out all the systems the brakes were the most concerning, I was unable to obtain a “ good pedal”. I went through every part of the braking system, looking for the obvious, but nothing was found. The issue was the brakes would not stop the car no matter how hard the pedal was pressed, it slowed down but I could not make a deliberate stop. I bled the system using multiple methods, vacuum, pressure, foot pumping, etc. the system still seemed to have air trapped somewhere. Finally after much frustration I removed the combination valve and replaced ot with an adjustable proportioning valve and a 2lb residual check valve in the front and rear supply lines.
Problem solved! It took a couple of test drives to dial in the proportioning valve but after that the brakes worked as they should.
I now think that there is no way an over the counter valve like is supplied with the MPB kit can be accurate for every type of application. The adjustable valve has the capability of being able to be dialed into each individual application. (Total weight, balance weight, tire size(s),etc.)
Jim