Hot Rods Brake pedel feel 4wl disc brakes

I'm trying to get a better brake pedel out of my set up. It's 4wl manual disc brakes. gm intermediate calipers on front and explorer calipers on rear. using a 85 dodge 5th ave master with a 1" bore and have a 6:1 pedal ratio.

It's all bled out and pedal has quite a bit of travel. I have some disc residual valves not installed but didn't know if the gm calipers or ford required them to keep some pressure on them to get a decent pedal. My master cylinder is on firewall.

 

Do you have rear calipers on the rear? if that is the case you may try adjusting them.

 

there are no adjustments on the rear calipers, they use a separate emergency brake system inside the rotor hat

 

put the disk residual valves in. You need to stop the caliper bounce.
I am assuming you do not have a combination valve or the master does not have them built in.

 

Ok then

 

With a firewall mounted master, residuals are not needed or wanted for discs.

 

Do you have a proportioning valve? Is it set properly? Sometimes it takes a few adjustments to get it happy.

 

My proportioning valve is a Wilwood adjustable and set about 50/50. My thinking if these front calipers were a take up style where the seal pulls it back quite a bit the residual valves would be needed, I was fighting a bad factory proportioning valve before that's why I installed the residual valves and replaced the pp valve, I also drums on the back at the time.
I didn't figure I needed them than just questioning my combo of parts I have. It wasn't the best pedal feel with that setup either . The dodge 5th ave mc is basically like a strange or wilwood aluminum with the black plastic reservoir. says for drum or disc and know a lot of guys use them . Mine is a new mc not rebuilt.

 

Except for your brake master, your brakes are identical to what I put on my friend's '69 Nova A/FX car when I built it. I used a stock Chevy manual dual master, no residual valves, and no proportioning valve. I told him we'd do some test stops, and drive it first. Then if it needed any changes, I'd cut lines and put in whatever was needed.
It stops great, with very little pedal travel, and even under panic stop from around 50 mph it came to a stop nice and straight.

 

I'm wondering if your master cylinder bore is too small for the calipers? If it can't displace enough fluid in a given distance, that might explain the long pedal travel.

 

It's actually 1.031" bore.

 

Was that a 1.125 bore mc? That's what it calls for anyway