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Porsche 911 Speedster (991.2) (2019) – Specifications & Performance

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
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
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
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)
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
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
Top track speed 192 mph
Acceleration 0 60 mph 3.8s
Drag coefficient cd 0.347