How to get more brake pressure?

[Painter D]

My problem is that there doesn't seem to be enough pressure to the front (disks). What I mean is the truck will stop "ok" but not as good as I think it should. In other words I hope some kid never runs out in front of me. Anyways no matter what speed I am at or how hard I push the pedal the front wheels won't lock up. Shouldn't they lock up at some point? Is there any tricks to achieve more pressure?

It's got new rotors, new calipers, new disk,drum prop. valve, new hoses, new MC, New booster ,and a new adj. proportioning valve on the rear line. I've bled them several times and the pushrod is the propper length.

I've been driving the truck like this for 2 years without issue, I'm just wanting a little more pressure up front. Any suggestions?

[SCOTI]

Originally Posted by 69chevyshort

My problem is that there doesn't seem to be enough pressure to the front (disks). What I mean is the truck will stop "ok" but not as good as I think it should. In other words I hope some kid never runs out in front of me. Anyways no matter what speed I am at or how hard I push the pedal the front wheels won't lock up. Shouldn't they lock up at some point? Is there any tricks to achieve more pressure?

It's got new rotors, new calipers, new disk,drum prop. valve, new hoses, new MC, New booster ,and a new adj. proportioning valve on the rear line. I've bled them several times and the pushrod is the propper length.

I've been driving the truck like this for 2 years without issue, I'm just wanting a little more pressure up front. Any suggestions?

I've heard your motor in person. With that 'lumpy' cam, my 1st suggestion would be to put a vacuum gauge to the manifold & see how much vacuum is there for the power booster. Little to no vacuum means little to no assist. . ... or, brakes that feel inadequate.

[Painter D]

Originally Posted by SCOTI

I've heard your motor in person. With that 'lumpy' cam, my 1st suggestion would be to put a vacuum gauge to the manifold & see how much vacuum is there for the power booster. Little to no vacuum means little to no assist. . ... or, brakes that feel inadequate.

As common as that is I don't know why I didn't think of that. (DUH) I do have a pretty healthy cam in it. I'll try the vacuum guage and see where I'm at.

Any guess on how much vacuum would be adequate?

[SCOTI]

Originally Posted by 69chevyshort

Any guess on how much vacuum would be adequate?

Seems I've read that you need more than 15in vacuum to have adequate pressure. The hydra-boost is one way; a small GM electric vacuum pump is another (80's - 90's Cadillacs used them).

[el curioso]

hydroboost...