The Plymouth Road Runner Convertible is a rear wheel drive road car, with its engine positioned in the front, and a 2 door convertible/cabriolet body.
It forms part of Plymouth's FR2 series.
The Plymouth Road Runner Convertible's engine is a naturally aspirated petrol, 7.2 litre, overhead valve 90 degree V 8 cylinder with 2 valves per cylinder. This unit has an output of 390 bhp (395 PS/291 kW) of power at 4700 rpm, and maximum torque of 665 N·m (490 lb·ft/67.8 kgm) at 3200 rpm.
The engine delivers its power through to the wheels via a 3 speed automatic transmission.
Full specs
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| bodywork | |||
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| Body type | 4/5 seater convertible/cabriolet | ||
| 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 | 1374 mm | 54.1 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 | 7.2 litre 7206 cc (439.737 cu in) |
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| Bore × Stroke | 109.73 × 95.25 mm
4.32 × 3.75 in |
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| Bore/stroke ratio | 1.15 | ||
| Valve gear | overhead valve (OHV)
2 valves per cylinder 16 valves in total |
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| maximum power output (gross) |
395 PS (390 bhp) (291 kW) at 4700 rpm |
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| maximum torque (gross) |
665 Nm (490 ft·lb) (67.8 kgm) at 3200 rpm |
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| Specific output (gross) |
40.4 kW/litre 54.9 ps/litre 54.1 bhp/litre 0.89 bhp/cu in |
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| Specific torque (gross) |
92.28 Nm/litre
1.12 ft·lb/cu3 |
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| Engine construction | cast iron block & head | ||
| Lubrication | wet sumped | ||
| compression ratio | 10.5:1 | ||
| Fuel system | |||
| bmep (brake mean effective pressure) | 1159.7 kPa (168.2 psi) | ||
| Maximum RPM | |||
| crankshaft bearings | 5 | ||
| Engine coolant | Water | ||
| Unitary capacity | 900.75 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 | 6.0JJ x 14 | ||
| Wheel size rear | 6.0JJ x 14 | ||
| Tyres front | F70 x 14 | ||
| Tyres rear | F70 x 14 | ||
| Brakes F/R | Dr/Dr | ||
| Front brake diameter | 279 mm | ||
| Rear brake diameter | 254 mm | ||
| Braked area | |||
| Gearbox | 3 speed automatic | ||
| Top gear ratio | 1 | ||
| Final drive ratio | 3.23 | ||
| general | |||
| Carfolio.com ID | 522522 | ||
| Production total | |||
| Model code | RM27 | ||
| Model family | FR2 | ||
| RAC rating | 59.7 | ||
| Insurance classification | No information available | ||
| Tax band | No information available | ||
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1970 Plymouth Road Runner Convertible Automatic added 2017-06-21. Last modified 2020-03-16. |
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