Mopar Muscle Association UK

After reading the link Jon put up regarding the master cylinder supplied with these kits & the possible problems with the bore being too large (1 1/8th) , i spoke to the tech guy @ SSBC , he said the pads supplied (race ) needed to be bedded in & it sounds like the brake issue i have is due to the pads glazing over (ok the last time i looked ) , caused by excessive braking when first installed , causing the glue compounds to come to the surface of the pad. Did'nt tell them i wanted race pads , also no insructions in the kit.

Anyway , found out the mustangs 65/67 use the same pads , so have ordered a set of normal road pads. , also too much aggravation changing the master cylinder (already out) , so gonna drill a hole an inch higher on the brake peddle for the rod into the master (sounds easy ) , this should give me another 400/500 psi , hoping to get some decent stopping power.

These brakes have been sh$$t from the offset , nearly rear ended more times than i can remmember , i know i should change one thing @ a time , maybe pads first , but while the interior is out i may as well sort the pedal @ the same time.

If only i could charge by the hour , would'nt need the rollover.

This brake issue has been the sole reason i've had to keep the MPH down goin through the traps , if all works out , gonna take the throttle stop off.

Good update Adam, hope you have a fix as I have an SSBC kit to fit to the Belverdere.

The Pod run off goes forever, no wories stopping there.

sounds to be a good plan Adam as if this is the fix i'll order a ssbc kit ...........................

Got a feeling the brake pedal is hardened, drilling that might not be much fun.

Blue wrote:Got a feeling the brake pedal is hardened, drilling that might not be much fun.

Better get me super dooper drill bits out , failing that i might just bring it up to you with the gv & box.

Adam.

You don't do things by half mate...!!!!!!

Don't bother with bakes just stick a parachute on the pit...now that would look impressive ...


Rich.

Got the pedal out , measured the ratio to be 6:1 , drilled a new hole 3/4 inch higher , have now got 9:1 pedal ratio , should give me another 300 psi into the master , @ 75 psi pedal pressure.

Thanks for helping with the maths Gaz.

Adam it ok giving more pressure ....can the rest of the system take it

AllKiller wrote:Adam it ok giving more pressure ....can the rest of the system take it

If his problem is not enough pressure, then i'm sure it could take a bit more

Not enough pressure or wrong pads....

Race pads are pants and should not be used in a street car, my Skyline came with them and i nearly wrapped it up on the test drive......
Owner looked ok...if only he knew, i wasnt leaving the braking late, there were no brakes, thank God those things handle.

Steve , the problem is the master cylinder not providing enough pressure to work the pads , drums want around 600/700 psi & discs around 1100/1300 psi , so rather than swap out the master , i have effectively increased the fluid pressure another 300 psi @ 75 psi pedal pressure , to which i have no idea how much that would be , maybe the same as a heavy clutch might be , as regards the hydraulics taking the pressure , i don't think i'm any worse off than if i was using a smaller bore master cylinder.

These braking systems take a lot more pressure than your foot could ever give.

Fair enough

We fitted a set of these, not my own car though. Nothing but trouble TBH.

Pedal feel and travel was non exsistant initially. We changed the master in the end for a smaller one, but it wasn't great, certainly from a feel point of view. It was a while ago now, but i remember having discussion with their tech, which didn't get me far, other than for them to admit, that as it was a servoed car, i needed a different cylinder, despite the fact they claimed it was suitable for the car in question!

Won't be getting involved in one of those kits again. I belive Pete has the car now?

Hi Roger, hope you are well.
Yes, I have the car, and I did think it strange that it had SSBC discs but an OEM style new Master Cylinder - I thought the installer did not want to re-plumb the top steel hoses - I think I am right in saying the ports are reversed on the SSBC M/C.

As you say, in that format the set up works well, but certainly no better than the late single piston Chrysler set up.

I don't recall the SSBC cylinder being the other way round, but its a while ago now. The previous owner did sort out an additional vac resevoir if i recall as it ran out of assistance at low speeds! Touch unnerving.