996 Carrera Technical File — PCGB Hamilton and Naghar / PAGE 13
Operating brake Foot operated, hydraulic-mechanical boost · Dual-circu
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Brakes
Operating brake Foot operated, hydraulic-mechanical boost
Dual-circuit brake system, 4-piston AI monobloc
brake calipers at FA and RA, distributed per axle,
internally ventilated brake discs at front and
rear axles, ABS standard, Traction Control (TC)
optional with switch-over possibility to
automatic brake differential (ABD).
Vacuum brake booster
(boost factor) 3.85
Brake master cylinder 0 mm (in) 23.81/23.81 (0.94/0.94)
Brake master cylinder stroke mm (in) 18/18 (0.71/0.71)
Pressure reducer - switching-on
pressure 55 bar
- reducing factor 0.46
Brake disc 0 mm (in) Front 318 (12.53)
Rear 299 (11.78)
Effective brake disc 0 mm (in) Front 261.8 (10.31)
Rear 247.6 (9.75)
Brake disc thickness mm (in) Front 28 (1.10)
Rear 24 (0.95)
Effective total brake
area per wheel cm2 (sq.in) Front 127 (19.69)
Rear 98 (15.195)
Piston 0 in brake caliper mm (in) Front 36 (1.42) and 40 (1.576)
Rear 28 (1.10) and 30 (1.182)
Parking brake Drum-type parking brake
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