2019 Porsche 911 Speedster (991.2) Technical Specifications
| Engine | Naturally aspirated flat-six (boxer) engine |
| No of cylinders | 6 |
| Valves/cylinders | 4 |
| Displacement | 3,996 cm3 |
| Bore | 102.0 mm |
| Stroke | 81.5 mm |
| Max power output | 502 hp @ 8,400 rpm |
| Max torque | 346 lb.-ft. @ 6,250rpm |
| Max output per liter | 125.62 hp per liter |
| Compression ratio | 13.3:1 |
| Max engine speed | 9,000 rpm |
| Cooling system | Water cooling with mechanical thermostat |
| Drive system | Rear wheel drive |
| Transmission |
Six-speed GT Sport manual transmission with Porsche Torque Vectoring (PTV) including mechanical rear differential lock: locking action 30% traction 37% overrun
|
| Gear ratios | |
| 1st gear | 3.75 |
| 2nd gear | 2.38 |
| 3rd gear | 1.72 |
| 4th gear | 1.34 |
| 5th gear | 1.08 |
| 6th gear | 0.88 |
| Reverse gear | 3.42 |
| Total transmission ratio RA | 3.76 |
| Chassis | |
| Suspension and damping |
Sports chassis with steel springs and 25 mm lowering; Porsche Active Suspension Management (PASM) with electronically controlled dampers; two manually selectable damping programs
|
| Front axle |
Lightweight spring strut axle (McPherson type), chassis mounts partially with ball joints
|
| Rear axle |
Lightweight multi-link suspension with wheels independently suspended on five links, chassis mounts partially with ball joints
|
| Steering |
Electromechanical power steering with variable steering ratio; rear-axle steering
|
| Steering ratio | 17.06:1 (on-center) to 13.15:1 |
| Steering wheel diameter | 360 mm |
| Turning circle diameter | 36.4 ft. (11.1 m) |
| Vehicle stability system |
Porsche Stability Management (PSM) including ABS with extended brake functions; can be switched off in two stages (ESC off and ESC+TC off)
|
| Brakes | |
| Brake system |
Porsche Ceramic Composite Brake (PCCB); dual circuit brake system with axle distribution; vacuum brake booster; braking assistant; electric duo-servo parking brake; automatic hold function
|
| Front axle brakes |
Six-piston aluminum monobloc fixed-calipers; perforated and vented ceramic composite brake rotors with aluminum brake chambers
|
| Diameter | 410 mm |
| Thickness | 36 mm |
| Rear axle brakes |
Four-piston aluminum monobloc fixed calipers; perforated and vented ceramic composite brake rotors with aluminum brake chambers
|
| Diameter | 390 mm |
| Thickness | 32 mm |
| Wheels and tires | |
| Wheels and tires, front |
9 J x 20 RO 55 with 245/35 ZR 20 UHP tires
|
| Wheels and tires, rear |
12 J x 20 RO 47 with 305/30 ZR 20 UHP tires
|
| Dimensions | |
| Length | 179.6 inches (4,562 mm) |
| Width | 77.9 inches (1,852 mm) |
| Height | 49.3 inches (1,250 mm) |
| Wheelbase | 96.7 inches (2,457 mm) |
| Track width, front | 61.1 inches (1,551 mm) |
| Track width, rear | 61.2 inches (1,555 mm) |
| Luggage compartment | 4.4 cubic feet (front trunk) |
| Unladen weight | 3,230 lbs. |
| GVWR | 3,953 lbs. |
| Weight-to-power ratio | 6.43 lbs. per hp |
| Performance | |
| Top track speed | 192 mph |
| Acceleration 0 60 mph | 3.8s |
| Drag coefficient cd | 0.347 |
