Greetings all
I have finally completed the disc brake installation on my hawk.
I wanted the backup of a dual master cylinder, this means that because the M/C is under the floor 4W discs means 2 power boosters so I opted to retain the rear drums. I used Nissan 300ZX 4 spot alloy calipers, Nissan Patrol 1 1/16" M/C, Nissan Urvan Remote Reservoir with level switch. This M/C has the right stroke both primary/secondary and with either circuit failed still retains 25% pedal travel for stopping on the remaining circuit. A PBR VH44f power booster. A 2lb front and 10lb rear in line residual valve. I used Nissan gear because they use IFF fittings and all you do is use an M10 flare nut instead of the 3/8"UNF one.
Disc rotor is DBA504 Ford XR8. Caliper is mounted on a laser cut plate.
The front 1 1/16" wheel cylinders are swapped to the rear to increase stopping of the rear.(required because of the larger M/C.
The end result is this car really stops now.
During testing the rear right wheel had a slight tendency to lock just before the front under severe braking on 1 or two runs. I think the balance is spot on. I did 4 120kph to 0 stops in succession with no brake fade.
Here are some pics
Allan.
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I have finally completed the disc brake installation on my hawk.
I wanted the backup of a dual master cylinder, this means that because the M/C is under the floor 4W discs means 2 power boosters so I opted to retain the rear drums. I used Nissan 300ZX 4 spot alloy calipers, Nissan Patrol 1 1/16" M/C, Nissan Urvan Remote Reservoir with level switch. This M/C has the right stroke both primary/secondary and with either circuit failed still retains 25% pedal travel for stopping on the remaining circuit. A PBR VH44f power booster. A 2lb front and 10lb rear in line residual valve. I used Nissan gear because they use IFF fittings and all you do is use an M10 flare nut instead of the 3/8"UNF one.
Disc rotor is DBA504 Ford XR8. Caliper is mounted on a laser cut plate.
The front 1 1/16" wheel cylinders are swapped to the rear to increase stopping of the rear.(required because of the larger M/C.
The end result is this car really stops now.
During testing the rear right wheel had a slight tendency to lock just before the front under severe braking on 1 or two runs. I think the balance is spot on. I did 4 120kph to 0 stops in succession with no brake fade.
Here are some pics
Allan.
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Allan Tyler Melbourne Australia
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