bleading brakes/residual valves

on my promod car ive bleed 3 different ways and the pedal is good
untill a few hrs later and i have to pump 2-3 times to get the height back
im talking a inch or so
the master cyl is low in the car and it has 4 piston strange rears
do i need residual valves ,what pressure and were do i put them
front/rear/ 4lbs/10lbs/just front or just rear
my other promod car had the same brake system but no problems
thanks

 

You need the 2lb blue residuals ,Wilwood site has info.

 

Yes, 2 Lb should do it. This is a result of the M/C being the lowest point in the system. I try and put my M/C's high with a swing pedal, eliminates this problem. Gives better clearance and less prone to dirt etc.
Kurt-Prostart Race Cars


www.prostartracecars.com

 

2lbs

do i need the 2 lbs check valves in the front and rear
the brakes wont drag will they
thanks

 

Duane, I tried to reply to your PM but your box is full.

Hi Duane,
The only drawback would be if it made the brakes drag, but 2 pounds should not and be sufficient to give you that "right there" feel. You could put the valve on the rear only and see if it ends your problem, assuming you have 2 piston front calipers. You should also be sure you have the proper size Master Cylinder and that it is plumbed properly (the port nearest the mounting flange should be to the rear brakes).
Kurt

 

Residual Pressure valves

I used to run without the residual valves as well, I have a hand brake set-up. I always had to give the handle a couple of good pulls to get the brakes up before I staged. Put the valves on (2lbs) on from and rear, problem gone. Never noticed any dragging.

Corey