Technical Values
WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2019 Porsche 911, 2018 Porsche 911, 2017 Porsche 911, 2016 Porsche 911, and 2015 Porsche 911. However, it is still accessible from the selected car via links, so may be relevant.
| Location | Description | Type | Basic value | Tolerance 1 | Tolerance 2 |
|---|---|---|---|---|---|
| Brake booster (vacuum) | tandem/diameter | 8/9 Zoll | |||
| Brake booster transmission ratio (i) | 911 GT3 | Factor | 3.5 | ||
| Brake booster transmission ratio (i) | 911 Turbo | Factor | 5.5 | ||
| Brake disc diameter, front | Diameter | 380 mm | |||
| Brake disc diameter, rear | Diameter | 380 mm | |||
| Pad thickness front and rear | Measured value | ca. 12.0 mm | |||
| Pad thickness, front and rear (wear limit) | Measured value | 2 mm | |||
| Brake disc thickness, new (front) | Measured value | 34 mm | |||
| Brake disc thickness, new (rear) | Measured value | 30 mm | |||
| Brake disc minimum thickness after machining, front | Brake disc can only be reworked symmetrically, i.e. equally from both sides! | Measured value | 32.6 mm | ||
| Brake disc minimum thickness after machining, rear | Brake disc can only be reworked symmetrically, i.e. equally from both sides! | Measured value | 28.6 mm | ||
| Brake disc wear limit, front | Measured value | 32.0 mm | |||
| Brake disc wear limit, rear | Measured value | 28.0 mm | |||
| Peak-to-valley surface roughness of brake disc after machining (max.) | Measured value | 0.006 mm | |||
| Thickness tolerance of brake discs (max.) | Measured value | 0.02 mm | |||
| Lateral runout of brake disc (max.) | Measured value | 0.03 mm | |||
| Lateral runout of wheel hub (max.) | Measured value | 0.03 mm | |||
| Lateral runout of brake disc when installed (max.) | Measured value | 0.06 mm | |||
| Push-rod play | Measured at brake pedal plate | Measured value | approx. 1 mm | ||
| Diameter of parking-brake drum, wear limit | Diameter | 180 mm | |||
| Diameter of parking-brake drum, wear limit | Diameter | 181 mm | |||
| Width of parking-brake shoe | Measured value | 25 mm | |||
| Thickness of parking-brake pad | Measured value | 4.5 mm | |||
| Thickness of parking-brake pad, wear limit | Measured value | 2 mm | |||
| Brake booster diameter (vacuum) | Tandem/diameter | 8/9 Zoll | |||
| Brake booster transmission ratio (i) | 911 GT3 | Factor | 3.5 | ||
| Brake booster transmission ratio (i) | 911 Turbo | Factor | 5.5 | ||
| Brake disc diameter, front | Diameter | 410 mm | |||
| Brake disc diameter, rear | Diameter | 390 mm | |||
| Pad thickness front and rear | Measured value | ca. 12.0 mm | |||
| Pad thickness, front and rear (wear limit) | Measured value | 2 mm | |||
| Brake disc thickness, new (front) | Measured value | 36 mm | |||
| Brake disc thickness, new (rear) | Measured value | 32 mm | |||
| Wear limit of front and rear brake discs | Measuring with VAS 6813 test equipment. Note measuring prerequisites. New values/wear values and three measuring points are lasered onto the brake disc hub. Wear value reached: Replace PCCB brake discs on each axle. | Measured value | XX/XX Read value on brake-disc hub | ||
| Thickness tolerance of brake discs (max.) | Measured value | 0.02 mm | |||
| Lateral runout of brake disc (max.) | Measured value | 0.03 mm | |||
| Lateral runout of wheel hub (max.) | Measured value | 0.03 mm | |||
| Lateral runout of brake disc when installed (max.) | Measured value | 0.06 mm | |||
| Push-rod play | Measured at brake pedal plate | Measured value | approx. 1 mm | ||
| Diameter of parking-brake drum, wear limit | Diameter | 180 mm | |||
| Diameter of parking-brake drum, wear limit | Diameter | 181 mm | |||
| Width of parking-brake shoe | Measured value | 25 mm | |||
| Thickness of parking-brake pad | Measured value | 4.5 mm | |||
| Thickness of parking-brake pad, wear limit | Measured value | 2 mm |