Hydro Boost Conversion
A brake booster is a critical component of many braking systems. It magnifies the slowing or stopping force of the existing brake system, making it more powerful and more effective. Hydroboost Brake units use power steering pressure instead of engine vacuum for brake assist. This is sometimes necessary if the engine does not create enough vacuum to assist the braking system. Hydro-boost power assist was introduced in 1973 by Bendix as an alternative to the vacuum booster. The hydro-boost uses the hydraulic pressure from the power steering system to provide the driver assist in applying the brakes. The vehicle requires more assist than is available from a vacuum booster. A hydroboost unit is located between the firewall and the master cylinder and has hydraulic lines leading from the power steering pump to the power steering gear. It uses a spool valve and power piston to regulate pressure. A spring loaded or nitrogen gas charged accumulator is used in case of a power ...