Porportioning Valve

Tom Meyer · 12-27-2015, 03:06 PM

What kind of a car is it? Might have to move where the rod attaches to the pedal to get better pressures with a footbrake car. Tom

Todd Geisler · 12-27-2015, 08:54 PM

Just got my new brakes from Lamb. In conversations with Roger he told me a few things.

1. he does not believe in reducing front brake pressure via an adjustable proportioning valve.

2. for 4 wheel discs, 4 piston caliper they recommend a 1 1/8" master cylinder.

I can tell you from my experience building cars, we never use residual pressure valves on cars where the master cylinder is on the firewall. The RPV is only used when the master cylinder is mounted on the floor.

Tony Goodman · 12-28-2015, 05:15 PM

Thanks for the responses from everyone! I'm going to up grade the M/C to a 1.125 bore, and not use a proportioning valve. Thanks Tony

12-27-2015, 03:06 PM	#1
Tom Meyer Senior Member Join Date: Aug 2003 Location: Pierce NE Posts: 936 Likes: 78 Liked 354 Times in 120 Posts	Re: Porportioning Valve What kind of a car is it? Might have to move where the rod attaches to the pedal to get better pressures with a footbrake car. Tom __________________ Tom Meyer 5240 SS Stock ???

12-27-2015, 08:54 PM	#2
Todd Geisler Member Join Date: Feb 2002 Posts: 328 Likes: 64 Liked 345 Times in 149 Posts	Re: Porportioning Valve Just got my new brakes from Lamb. In conversations with Roger he told me a few things. 1. he does not believe in reducing front brake pressure via an adjustable proportioning valve. 2. for 4 wheel discs, 4 piston caliper they recommend a 1 1/8" master cylinder. I can tell you from my experience building cars, we never use residual pressure valves on cars where the master cylinder is on the firewall. The RPV is only used when the master cylinder is mounted on the floor.

12-28-2015, 05:15 PM	#3
Tony Goodman Junior Member Join Date: Jan 2006 Location: Zeeland, MI Posts: 98 Likes: 135 Liked 18 Times in 4 Posts	Re: Porportioning Valve Thanks for the responses from everyone! I'm going to up grade the M/C to a 1.125 bore, and not use a proportioning valve. Thanks Tony