Originally Posted by SportF
Go to your car without a valve and open a bleeder. The pedal is going to go to the floor. Period. I wanted to stir things up, which I why I posted.

But, I doubt I can change your mind. Last summer, two different tracks, two "dual" masters, brake leak and pedal goes to floor because, no valve. Both mopar type masters.

Also, there is no delay in rear brake apply. The proportion part is a set pressure regulator limiting pressure to rear to prevent lockup.

I'm done, have a nice day.


There most assured is a delay, but it is to the discs. It's called hold off.

Then there is hinge point where the rate of pressure increase to the drums is slowed due to the self energizing function of modern drum brakes.

And the aforementioned proportioning.

What trucks are you talking about?