The Plymouth Road Runner Hardtop is a rear wheel drive automobile, with the motor mounted in the front, and a 2 door coupé body.
The Plymouth Road Runner Hardtop is one of the FR2 model family from Plymouth.
The 8 cylinder, overhead valve naturally aspirated engine has 2 valves per cylinder and a displacement of 6.3 litres. This unit develops power and torque figures of 330 bhp (335 PS/246 kW) at 5000 rpm and 576 Nm (425 lbft/58.7 kgm) at 3200 rpm respectively.
The engine transfers its power through to the wheels via a 4 speed manual transmission.
Full specs
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| bodywork | |||
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| Body type | 4/5 seater fixed-head coupé | ||
| Number of doors | 2 | ||
| Designer | |||
| dimensions & weights | |||
| Wheelbase | 2946 mm | 116 inches | |
| Track/tread (front) | 1516 mm | 59.7 inches | |
| Track/tread (rear) | 1491 mm | 58.7 inches | |
| Length | 5182 mm | 204 inches | |
| Width | 1941 mm | 76.4 inches | |
| Height | 1346 mm | 53 inches | |
| Ground clearance | 137 mm | 5.4 inches | |
| length:wheelbase ratio | 1.76 | ||
| Kerb weight | |||
| Weight distribution | |||
| fuel tank capacity | 72 litres | 15.8 [19] UK [US] gal. | |
| aerodynamics | |||
| Drag coefficient | |||
| Frontal area | |||
| CdA | |||
| Powertrain | |||
| engine type | naturally aspirated petrol | ||
| Engine manufacturer | Chrysler | ||
| Engine code | |||
| Cylinders | V 8 in 90° vee | ||
| Capacity | 6.3 litre 6286 cc (383.595 cu in) |
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| Bore × Stroke | 107.95 × 85.85 mm
4.25 × 3.38 in |
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| Bore/stroke ratio | 1.26 | ||
| Valve gear | overhead valve (OHV)
2 valves per cylinder 16 valves in total |
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| maximum power output (gross) |
335 PS (330 bhp) (246 kW) at 5000 rpm |
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| maximum torque (gross) |
576 Nm (425 ft·lb) (58.7 kgm) at 3200 rpm |
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| Specific output (gross) |
39.1 kW/litre 53.2 ps/litre 52.5 bhp/litre 0.86 bhp/cu in |
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| Specific torque (gross) |
91.63 Nm/litre
1.11 ft·lb/cu3 |
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| Engine construction | cast iron block & head | ||
| Lubrication | wet sumped | ||
| compression ratio | 9.5:1 | ||
| Fuel system | |||
| bmep (brake mean effective pressure) | 1151.5 kPa (167 psi) | ||
| Maximum RPM | |||
| crankshaft bearings | 5 | ||
| Engine coolant | Water | ||
| Unitary capacity | 785.75 cc | ||
| Aspiration | Normal | ||
| Compressor | N/A | ||
| Intercooler | None | ||
| Catalytic converter | N | ||
| performance | |||
| Acceleration 0-80km/h (50mph) | |||
| Acceleration 0-60mph | |||
| Acceleration 0-100km/h | |||
| Acceleration 0-160km/h (100mph) | |||
| Standing quarter-mile | |||
| Standing kilometre | |||
| Maximum speed | |||
| Power-to-weight ratio | |||
| Weight-to-power ratio | |||
| fuel consumption | |||
| Fuel consumption | |||
| universal fuel consumption (calculated from the above) | |||
| litres/100km | |||
| km/litre | |||
| UK MPG | |||
| US MPG | |||
| Carbon dioxide emissions | |||
| Carfolio Calculated CO2 ? | |||
| VED band (UK) | |||
| CO2 Effizienz (DE) | |||
| chassis | |||
| Engine position | front | ||
| Engine layout | longitudinal | ||
| Drive wheels | rear wheel drive | ||
| Torque split | N/A | ||
| Steering | |||
| turns lock-to-lock | 5.300 | ||
| Turning circle | |||
| Front suspension | |||
| Rear suspension | |||
| Wheel size front | 5.0J x 14 | ||
| Wheel size rear | 5.0J x 14 | ||
| Tyres front | F78 x 14 | ||
| Tyres rear | F78 x 14 | ||
| Brakes F/R | Dr/Dr | ||
| Front brake diameter | 279 mm | ||
| Rear brake diameter | 254 mm | ||
| Braked area | |||
| Gearbox | 4 speed manual | ||
| Top gear ratio | 1 | ||
| Final drive ratio | 3.23 | ||
| general | |||
| Carfolio.com ID | 521554 | ||
| Production total | |||
| Model code | RM23 | ||
| Model family | FR2 | ||
| RAC rating | 57.8 | ||
| Insurance classification | No information available | ||
| Tax band | No information available | ||
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1970 Plymouth Road Runner Hardtop added 2017-06-21. Last modified 2020-03-16. |
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