Quote:
Originally Posted by 72gmcshorty
what is the benefit of hydro boost versus original brake booster (72 style)
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Pressure - the benefit is a dramatic increase in line pressure. A dual diaphram booster will produce around 700-800 psi of pressure in your brake lines. With a hydroboost it jumps to around 1500 psi.
If you are running 4 wheel disk brakes this matters. My son and I installed a hydroboost system on our 1969 Firebird. Purchased it through hydratech brakes in MI. It was expensive but being our 1st time we had excellent support. They are great people that make a quality product.
They also have some excellent technical info and videos on their website.
http://www.hydratechbraking.com/
Now - from personal experience....We found the inital setup to be very touchy.
We had all new components in our brake system. The setting of the clevis to the brake pedal and rod into the MC IS CRITICAL. As little as 1/2 turn can be the difference between preloading with brakes dragging and free wheeling. As me how I know. Damm thing held back a newly built Pontiac 462 no problem.
Couple other tips
1. We were advised to use Valvoline Synpower brake fluid.
2. The power steering pump needs to in top shape, not tired and leaking.