Hydraulic Handbrake Details

Jetsetter

Jetsetter

Member
After hearing about the questionability of the K-Sport master cylinder and the nearest substitute being a PITA to mess with, I've rather found myself settled for the Driftworks brake. However, I'm worried about the installation as my 1997 Mustang GT is most definatly not going to be covered under the same segment as a 240SX.

My question is can I make this work? I'm confused as to how this fits into the hydraulic system and locks the rear brakes without interfereing with the front brakes? A T clamp? Where would I locate it, directly at the rear caliper or somewhere down the line? Wouldn't this still force pressure onto the front brakes, no matter where it's mounted?

Any help is appreciated.
 
If you look on your brake circuits , the fronts and rears are independent of one another.

there is always 2 circuits so if one fails the other is there.

I don't remember yanks but I'm fairly certain they aren't diagonally split like some vehicles.
 
If your car has one front-rear line then it's fine. :)

Basically it goes in the middle of the front-rear line, and works like any brake cylinder. Normally the brake cylinder takes fluid directly from a reservoir, and pushes it at the caliper. However the cylinder sits in the middle, so it takes fluid from the reservoir via the rear brake line etc etc, then pushes it rearwards. The rear brakes still work as normal, the fluid just also goes through the new cylinder.

All brake master cylinders have an in and an out, so they'll only push through the out, no chance of it operating the front brakes!
 
That's what I wanted to hear. The master cylinder on the car goes to a proportioning valve which sends the fluid to the front or rear brakes, so I can be fairly certain I'm only going to be locking the rear brakes. I'm still a little confused on how the 240 guys are doing it though.

There's a T piece that connects the handbrake with the rear line, correct? How do I go about fitting this in or does it need to be welded in? Can I put it directly on the caliper? There's provisions for two lines from the handbrake, one to each side of the brakes?
 
Nope there's no t peice, and it works on any braking system that runs a single line to the rear of the car.

You cut the front-rear line in the middle, the line from the front of the car goes to the input of the cylinder, and the line to the rear of the car goes to the output. Fluid will flow freely through the cylinder in that direction, keeping normal brake operation, and when you pull the handbrake it will operate the rear brakes only.

You don't need to do any welding, brake fittings are never welded. Either use the correct fittings and a pipe flaring tool, or swap out your existing front-rear line for our braided line.

Normally master cylinders have 2 outputs, front and rear, or they just t-peice and then have a restrictor or proportion valve on the rear brakes. Sounds like you've ditched your stock rear line restrictor and swapped for a proportion valve.
 
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