The Porsche 911 Speedster is a rear wheel drive vehicle, with its motor placed in the rear, and a 2 door roadster body.
It is part of Porsche's 991.II range of cars.
Its 6 cylinder, double overhead camshaft naturally aspirated engine has 4 valves per cylinder and a displacement of 4 litres. For this model it musters power and torque figures of 503 bhp (510 PS/375 kW) at 8400 rpm and 470 Nm (347 lbft/47.9 kgm) at 6250 rpm respectively.
This power is delivered to the wheels by means of a 6 speed manual gearbox.
Stated weight at the kerb is 1465 kg.
The Porsche 911 Speedster is claimed to manage a maxiumum speed of 310 km/h (193 mph), stated fuel consumption figures are 20.6/9.9/13.8 l/100km urban/extra-urban/combined, and carbon dioxide emissions are 317.0 g/km.
Full specs
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| bodywork | |||
|---|---|---|---|
| Body type | 2 seater roadster | ||
| Number of doors | 2 | ||
| Designer | |||
| dimensions & weights | |||
| Wheelbase | 2457 mm | 96.7 inches | |
| Track/tread (front) | 1551 mm | 61.1 inches | |
| Track/tread (rear) | 1555 mm | 61.2 inches | |
| Length | 4562 mm | 179.6 inches | |
| Width | 1852 mm | 72.9 inches | |
| Height | 1250 mm | 49.2 inches | |
| Ground clearance | |||
| length:wheelbase ratio | 1.86 | ||
| Kerb weight | 1465 kg | 3230 lb | |
| Weight distribution | |||
| fuel tank capacity | 64 litres | 14.1 [16.9] UK [US] gal. | |
| aerodynamics | |||
| Drag coefficient | 0.347 | ||
| Frontal area | 2.01 m² | ||
| CdA | 0.70 | ||
| Powertrain | |||
| engine type | naturally aspirated petrol | ||
| Engine manufacturer | Porsche | ||
| Engine code | |||
| Cylinders | Flat 6 | ||
| Capacity | 4 litre 3996 cc (243.851 cu in) |
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| Bore × Stroke | 102 × 81.5 mm
4.02 × 3.21 in |
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| Bore/stroke ratio | 1.25 | ||
| Valve gear | double overhead camshaft (DOHC)
4 valves per cylinder 24 valves in total |
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| maximum power output | 510 PS (503 bhp) (375 kW) at 8400 rpm |
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| maximum torque | 470 Nm (347 ft·lb) (47.9 kgm) at 6250 rpm |
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| Specific output | 93.9 kW/litre 127.6 ps/litre 125.9 bhp/litre 2.06 bhp/cu in |
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| Specific torque |
117.62 Nm/litre
1.42 ft·lb/cu3 |
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| Engine construction | |||
| Lubrication | |||
| compression ratio | 13.3:1 | ||
| Fuel system | direct petrol injection | ||
| bmep (brake mean effective pressure) | 1478 kPa (214.4 psi) | ||
| Maximum RPM | 9000 rpm | ||
| crankshaft bearings | |||
| Engine coolant | Water | ||
| Unitary capacity | 666 cc | ||
| Aspiration | Normal | ||
| Compressor | N/A | ||
| Intercooler | None | ||
| Catalytic converter | Y | ||
| performance | |||
| Acceleration 0-80km/h (50mph) | |||
| Acceleration 0-60mph | 3.8 s | ||
| Acceleration 0-100km/h | 4 s | ||
| Acceleration 0-160km/h (100mph) | 8 s | ||
| Standing quarter-mile | |||
| Standing kilometre | |||
| Maximum speed | 310 km/h (193 mph) | ||
| Power-to-weight ratio | Higher is better 348.12 PS/tonne (1000 kg) 0.35 PS/kg 256.03 kW/tonne (1000 kg) 0.26 kW/kg 343.34 bhp/tonne (1000 kg) 0.34 bhp/kg 0.15 bhp/lb |
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| Weight-to-power ratio | Lower is better 3.91 kg/kW 6.52 lb/bhp |
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| fuel consumption | |||
| Fuel consumption | 20.6/9.9/13.8 l/100km urban/extra-urban/combined | ||
| universal fuel consumption (calculated from the above) | |||
| litres/100km | 20.6/9.9/13.8 l/100km urban/extra-urban/combined | ||
| km/litre | 4.9/10.1/7.2 km/l urban/extra-urban/combined | ||
| UK MPG | 13.7/28.5/20.5 UK MPG urban/extra-urban/combined | ||
| US MPG | 11.4/23.8/17.0 US MPG urban/extra-urban/combined | ||
| Carbon dioxide emissions | 317.0 g/km NEDC | ||
| Carfolio Calculated CO2 ? | |||
| VED band (UK) | M | ||
| CO2 Effizienz (DE) | G | ||
| chassis | |||
| Engine position | rear | ||
| Engine layout | longitudinal | ||
| Drive wheels | rear wheel drive | ||
| Torque split | N/A | ||
| Steering | power assisted rack & pinion | ||
| turns lock-to-lock | |||
| Turning circle | |||
| Front suspension | |||
| Rear suspension | |||
| Wheel size front | 9J x 20 ET55 | ||
| Wheel size rear | 12J x 20 ET47 | ||
| Tyres front | 245/35 ZR 20 | ||
| Tyres rear | 305/30 ZR 20 | ||
| Brakes F/R | VeDi/VeDi-S-ABS | ||
| Front brake diameter | 410 mm | ||
| Rear brake diameter | 390 mm | ||
| Braked area | |||
| Gearbox | 6 speed manual | ||
| Top gear ratio | 0.88 | ||
| Final drive ratio | 3.76 | ||
| general | |||
| Carfolio.com ID | 595749 | ||
| Production total | 1948 | ||
| Model code | |||
| Model family | 991.II | ||
| RAC rating | 38.7 | ||
| Insurance classification | No information available | ||
| Tax band | No information available | ||
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2019 Porsche 911 Speedster added 2019-06-27. Last modified 2020-03-16. |
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