I Need Some Brake Help ASAP

[2 ttype]

I think I might have found the problem. The bore on an OEM wheel cylinder is 3/4. The bore on the wheel cylinders that come with a Moser rear is 1". I need to look into this a lot more but my buddy said the master might not be big enough to supply the volume in the larger cylinder. FYI if you are running bigger wheel cylinders than factory your back wheels are going to lock up under hard braking I think you can run a different proportioning valve to stop this but not a 100 percent sure. I ran into this on my ttype previous owner installed larger bore wheel cylinders so car would hold better at the line for drag racing. I don’t race the car and it was very dangerous on the road having the back wheels lock up!!
Does that make sense ?

 

[2 ttype]

. FYI if you are running bigger wheel cylinders than factory your back wheels are going to lock up under hard braking I think you can run a different proportioning valve to stop this but not a 100 percent sure. I ran into this on my ttype previous owner installed larger bore wheel cylinders so car would hold better at the line for drag racing. I don’t race the car and it was very dangerous on the road having the back wheels lock up!!

 

[1KWIKSIX]

. FYI if you are running bigger wheel cylinders than factory your back wheels are going to lock up under hard braking I think you can run a different proportioning valve to stop this but not a 100 percent sure. I ran into this on my ttype previous owner installed larger bore wheel cylinders so car would hold better at the line for drag racing. I don’t race the car and it was very dangerous on the road having the back wheels lock up!!

I've got the larger S-10 manual 7/8" bore rear wheel cylinders + long leading brake shoes and no issues. I did however remove the factory proportioning valve and installed a Wilwood adjustable proportioning valve. No problems locking them prematurely as you can dial in the perfect amount of rear brake bias.
Also I Installed Wilwood residual pressure valves (2# valve for front discs & 10# valve for rear brakes) in line as well for instant brakes with limited pedal travel.

 

[mikester]

. FYI if you are running bigger wheel cylinders than factory your back wheels are going to lock up under hard braking I think you can run a different proportioning valve to stop this but not a 100 percent sure. I ran into this on my ttype previous owner installed larger bore wheel cylinders so car would hold better at the line for drag racing. I don’t race the car and it was very dangerous on the road having the back wheels lock up!!

Not sure if thats correct on all vehicles. I spoke to the guys at Moser and Currie and they both sell rears with the Ford 11" drum brake sets and neither had any complaints/issues from the slightly larger cylinders. Currie gave me the name of their brake kit supplier and they said the same thing.
I was hopling to hear from someone on this forum that has one of these rears with the same brake setup but so far no replies.

 

[2 ttype]

I've got the larger S-10 manual 7/8" bore rear wheel cylinders + long leading brake shoes and no issues. I did however remove the factory proportioning valve and installed a Wilwood adjustable proportioning valve. No problems locking them prematurely as you can dial in the perfect amount of rear brake bias.
Also I Installed Wilwood residual pressure valves (2# valve for front discs & 10# valve for rear brakes) in line as well for instant brakes with limited pedal travel.


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