Technical Data - Boxster/Cayman
WARNING: This page does not describe the selected car, but rather 10 other vehicles, including the 2012 Porsche Cayman, 2012 Porsche Boxster, 2011 Porsche Cayman, 2011 Porsche Boxster, and 2010 Porsche Cayman. However, it is still accessible from the selected car via links, so may be relevant.
Operating brake (foot brake):
- Dual-circuit brake system with brake-circuit division per axle.
- Internally ventilated and perforated grey cast-iron brake discs on front and rear axle.
- Four-piston monobloc calliper on front and rear axle.
- Standard Porsche Stability Management (PSM 8.0).
| Location | Description | Type | Basic value | Tolerance 1 | Tolerance 2 |
|---|---|---|---|---|---|
| Brake booster (vacuum) | Diameter | 10 Zoll | |||
| Brake booster transmission ratio (i) | Ratio | 4.5 | |||
| Diameter of brake master cylinder, front/rear | Diameter | 23.81/23.81 mm | |||
| Brake master cylinder stroke, front/rear | Measured value | 20.5/15.5 mm | |||
| Brake disc diameter, front | Diameter | 298 mm | |||
| Brake disc diameter, rear | Diameter | 299 mm | |||
| Effective brake disc diameter, front | Diameter | 250 mm | |||
| Effective brake disc diameter, rear | Diameter | 247.6 mm | |||
| Piston diameter in four-piston brake calliper, front | 2x | Diameter | 40 mm | ||
| Piston diameter in four-piston brake calliper, front | 2x | Diameter | 36 mm | ||
| Piston diameter in four-piston brake calliper, rear | 2x | Diameter | 30 mm | ||
| Piston diameter in four-piston brake calliper, rear | 2x | Diameter | 28 mm | ||
| Effective brake pad area, front | Area | 214 cm2 | |||
| Effective brake pad area, rear | Area | 192 cm2 | |||
| Total brake pad area | Area | 406 cm2 |