Hyroboost

captain,

Can you elaborate a little on what exactly a hydroboost master cylinder is (or how it works) for those of us not completely in the know? Thanks.

Michael

Source:
http://www.mustangandfords.com/projectbuild/mufp_0706_f...r_part_13/index.html

quote:

Ford has used it on the Mustang since the mid-'90s and on Lincoln and Mercury product lines as far back as the early '80s. The Hydroboost-assist unit gets its power from the engine, but instead of engine vacuum, it's powered by the power-steering pump. Yes, hydraulic fluid from your power-steering system is used as the assist, giving you a nice power-brake-pedal feel without the need for the room to fit a big booster can. This means you can have a radical engine with poor vacuum, but still have great brakes and a light, power-brake-pedal feel.

Not sure how this could work on a car with no power steering. My MC is from a late model Mustang and uses an adapter plate (PI or PE, not sure...) with the stock vacuum booster. Is this what you meant?

quote:

Not sure how this could work on a car with no power steering.

You merely install a power steering pump to power the Hydra-boost system, regardless of whether you have power steering.

Thanks, Mark.

Michael

I will do some more research. On the mustang I believe the master cylinder has its own electric motor and works off of the master cylinders resevoir. The Hydroboost on trucks uses the power steering pump.

I've adapted a Hydroboost system to work with my Factory Five Cobra replica. The system came out of a '97 Mustang, but '96-'04 are the same. A high pressure line runs from a power steering pump to the Hydroboost unit which is mounted inline with the master cylinder. A remote reservoir feeds the steering pump with ATF fluid and the master cylinder only holds the brake fluid that runs out to the calipers. If you don't require power steering, then you need to run a return line from the Hydroboost back to the pump. Pretty simple really, except late model Fords use all different sized connectors that can be a PITA. Do a search on Hydroboost at ffcobra.com or go to hydratechbraking.com for more info.

Good Luck,
Ron

Lincoln used a system like this in the late sixties on the Continentals, the 460's had a hydraulic pump between the harmarnic balancer and the front of the timing cover. This unit powered the brakes and power steering.
Not sure of the name of the system from back then.
Jeff