hydroboost brakes?

[fcfred]

anyone installed hydroboost brakes on an m37 but used the stock pedals?

 

[thmpr]

Wow ... unanswered 2010 conversation. Same question here. Wondering if a hydroboost unit would fit underfloor to retain stock brake pedal location instead of switching to hanging pedals. Hydroboosts are no taller than a typical master cylinder and the compensator hangs below. I believe the units can even be clocked as needed for clearances. The frame rail may be in the way of the compesator unless able to find a left drop compesator or rotate out of the way. Way more line pressure than vacuum assist. Might have to pick up a used Astrovan unit for cheap and play with possibilities.

 

[just me]

I have seen a Hydrovac unit mounted under the drivers seat and piped through the floor. Around here at least, good ones are hard to come up with.

 

[SturmTyger380]

At a show I actually helped unload an M37 that had a Hydrovac unit installed. The drum brakes were very nice. I looked at the unit but have no idea what kind it was. It was not large. I think it was tapped into the intake somehow. I would think you might want to add a small air vac reservoir in the line with a check valve on the vacuum source side.

Links to old discussion: http://www.powerwagonadvertiser.com/forums/showthread.php?t=12918 http://www.g741.org/PHPBB/viewtopic.php?f=3&t=711

 

[thmpr]

I'm asking about a newer Hydroboost system which is smaller and far superior than Hydrovac and other can vacuum boosters. It can produce up to 2,000 pounds boost which would be handy on my 7,100 pound M152. It runs off the power steering pump (which I have) - no vacuum involved. The units are no larger than a typical master cylinder and may be able to fit easily under the floor and retain use of the original brake pedal. Just replace the master cylinder with the Hydroboost unit and add a new dual circuit master behind the Hydroboost. Run two high pressure lines and one low pressure return line to a remote reservoir. Someone must have done this?

 

[thmpr]

Just installed hydroboost and new, huge, JF9 10,000 pound gvw master cylinder and hydraulic clutch master under the floor using existing pedals. Easy Peasy! Pedals are closer to the floor and align with throttle pedal for more leg room and better feel. Adding an adjustable Wilwood compensator to the rear brake line.

 

[sons m37]

I have hydro boost with 4 wheel discs on my m37 stock pedals