The Du Pont Roadster is a rear wheel drive motor car, with the motor located in the front, and a 2 door roadster bodyshell.
The Du Pont Roadster's engine is a naturally aspirated petrol, 4.1 litre, side valve 4 cylinder with 2 valves per cylinder. This powerplant produces 60 bhp (61 PS/45 kW) of power.
The engine transmits power to the wheels through a 4 speed manual transmission.
Full specs
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| bodywork | |||
|---|---|---|---|
| Body type | 2 seater roadster | ||
| Number of doors | 2 | ||
| Designer | |||
| dimensions & weights | |||
| Wheelbase | 3150 mm | 124 inches | |
| Track/tread (front) | |||
| Track/tread (rear) | |||
| Length | |||
| Width | |||
| Height | |||
| Ground clearance | |||
| length:wheelbase ratio | |||
| Kerb weight | |||
| Weight distribution | |||
| fuel tank capacity | |||
| aerodynamics | |||
| Drag coefficient | |||
| Frontal area | |||
| CdA | |||
| Powertrain | |||
| engine type | naturally aspirated petrol | ||
| Engine manufacturer | Du Pont | ||
| Engine code | |||
| Cylinders | Straight 4 | ||
| Capacity | 4.1 litre 4090 cc (249.587 cu in) |
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| Bore × Stroke | 100.01 × 130.17 mm
3.94 × 5.12 in |
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| Bore/stroke ratio | 0.77 | ||
| Valve gear | side valve (SV)
2 valves per cylinder 8 valves in total |
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| maximum power output | 61 PS (60 bhp) (45 kW) |
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| maximum torque | |||
| Specific output | 10.9 kW/litre 14.9 ps/litre 14.7 bhp/litre 0.24 bhp/cu in |
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| Engine construction | |||
| Lubrication | |||
| compression ratio | |||
| Fuel system | 1 Yale & Towne carburettor | ||
| bmep (brake mean effective pressure) | |||
| Maximum RPM | |||
| crankshaft bearings | |||
| Engine coolant | Water | ||
| Unitary capacity | 1022.5 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 | |||
| Turning circle | |||
| Front suspension | LA.SE. | ||
| Rear suspension | LA.SE. | ||
| Wheel size front | |||
| Wheel size rear | |||
| Tyres front | 32 x 4 | ||
| Tyres rear | 32 x 4 | ||
| Brakes F/R | |||
| Front brake diameter | |||
| Rear brake diameter | |||
| Braked area | |||
| Gearbox | 4 speed manual | ||
| Top gear ratio | |||
| Final drive ratio | |||
| general | |||
| Carfolio.com ID | 294822 | ||
| Production total | |||
| Model code | |||
| RAC rating | 24.8 | ||
| Insurance classification | No information available | ||
| Tax band | No information available | ||
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1921 Du Pont Roadster added 2012-11-20. Last modified 2020-02-02. |
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