Technical data - 911 GT3
BRAKES TECHNICAL DATA - GT3 SPECIFICATIONS
| Designation | Notes, dimensions | Wear limit |
|---|---|---|
| Operating brake (foot brake) | Hydraulic dual-circuit brake system with front-axle / rear-axle brake circuit division. Vacuum brake booster, internally ventilated and perforated cast iron brake discs with four-piston monoblock fixed caliper at front and rear axles. The brake calipers are painted red for visual differentiation. ABS 5.3 (3-channel system without PSM and without traction control) |
|
| Brake booster (vacuum) | 10 inch | |
| Boost ratio | 3.15 (Identification with Cup 3.15) | |
| Brake master cylinder | front | 25.4 mm |
| rear | 25.4 mm | |
| Stroke | 18/18 mm | |
| Proportioning valve | without | |
| Brake discs | front | 330 mm |
| rear | 330 mm | |
| Effective brake discs | front | 267.8 mm |
| rear | 271.2 mm | |
| Piston in brake caliper | front | 2 x 44 + 2 x 36 mm |
| rear | 2 x 30 + 2 x 28 mm | |
| Brake pad area | front | 314 cm 2 |
| rear | 254 cm 2 | |
| Total brake pad area | 568 cm2 |