Editing Hydraulic Handbrake (section)

==DRIFT 31's Method==
There is a brake line that runs from the master cylinder to the diff, then splits into two, one to each caliper. Disconnect it at the diff and all along the chassis at each mounting point until roughly behind the drivers seat, then using the right pipe cutter, cut off the threaded nut and DO NOT LOSE IT. Drill two holes just behind the left hand mount of the drivers side seat. Take the line and CAREFULLY bend it so that it doesn't kink or break, and put it through the holes as below.

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Now, working inside the car, remove the centre console and drivers seat. Unbolt the standard handbrake, and move it over to the passenger side. If you look at the bolt holes in the chassis, you will notice that they are mirrored. This makes it easy to mount the standard cable handbrake onto the passenger side of the centre console. Make up two lengths of steel to make the mounts for the standard handbrake. You can either bolt or weld them onto the handbrake. Bolt the handbrake in.

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Work out roughly where you want the handbrake to sit and make yourself up a bracket to bolt the hydraulic handbrake onto.

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Weld it into place where you have previously worked out.

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Bolt the handbrake onto your new mount.

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The line you have brought into the cabin from the diff goes into the rear of the master cylinder(In this particular design. PLEASE NOTE: It may be different in other designs of master cylinder. Take note and check with the supplier if need be). Bend the line to shape and cut off any excess. Using a flaring tool, flare the pipe with the appropriate nut on it. Screw it into the master cylinder.

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With a new length of pipe, flare one end with the appropriate nut and screw into the master cylinder. Bend the pipe to shape and feed it through the second hole that you have drilled in the floor. Run it back to the other high pressure lines running under the car, and back through all the mounts on the chassis.

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Back at the diff, cut the pipe to length, and using the nut use saved from earlier, flare it and screw it back into the diff pipe.

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Inside the cabin, I ran some corrugated split tubing along the length of pipes just to neaten it all up a little.

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Bleed the brakes as per normal, starting furthest from the master cylinder to closest. i.e. rear passenger, rear driver, front passenger, front driver. Your new hydraulic handbrake should be fully functional. Test it out and check for any leaks or other.

This is the final product. I am sure you could try and trim the centre console to fit around both handbrakes if you could really be bothered. As you can see, I couldn't. Hope this helps everyone out.

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Since doing this install, I have swapped to VB-VS Holden Commodore Calipers. They are the same style/design as the Nissan R31 unit, but they do not have a built in handbrake mechanism. They bolt directly onto the R31 diff and use the same pads, though I recommend using the correct Commodore pads.

The reason for changing to these calipers is that my R31 units seized up, for one reason or another the internal handbrake was jamming. I was in a rush to get ready for an event and this was the quick and easy option. In the near future I plan on running twin calipers on the back, one caliper will be the Commodore unit for the handbrake, the other will be the stock R31 unit(or something larger with an internal handbrake) for regular braking.