Allen 41 Roadster is a car that has a 4 door roadster body style with a front mounted engine powering the rear wheels.
It is powered by a naturally aspirated engine of 3.6 litre capacity. This unit features side valve valve gear, 4 cylinder layout, and 2 valves per cylinder. It produces 37 bhp (37.5 PS/27.6 kW) of power at 1900 rpm.
This power is supplied to the wheels through a 3 speed manual gearbox.
Quoted weight at the kerb is 1118 kg.
Full specs
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| bodywork | |||
|---|---|---|---|
| Body type | 4 seater roadster | ||
| Number of doors | 4 | ||
| Designer | |||
| dimensions & weights | |||
| Wheelbase | 2845 mm | 112 inches | |
| Track/tread (front) | 1422 mm | 56 inches | |
| Track/tread (rear) | 1422 mm | 56 inches | |
| Length | |||
| Width | |||
| Height | |||
| Ground clearance | 279 mm | 11 inches | |
| length:wheelbase ratio | |||
| Kerb weight | 1118 kg | 2465 lb | |
| Weight distribution | |||
| fuel tank capacity | 49.2 litres | 10.8 [13] UK [US] gal. | |
| aerodynamics | |||
| Drag coefficient | |||
| Frontal area | |||
| CdA | |||
| Powertrain | |||
| engine type | naturally aspirated petrol | ||
| Engine manufacturer | Allen | ||
| Engine code | |||
| Cylinders | Straight 4 | ||
| Capacity | 3.6 litre 3620 cc (220.906 cu in) |
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| Bore × Stroke | 95.25 × 127 mm
3.75 × 5 in |
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| Bore/stroke ratio | 0.75 | ||
| Valve gear | side valve (SV)
2 valves per cylinder 8 valves in total |
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| maximum power output | 37.5 PS (37 bhp) (27.6 kW) at 1900 rpm |
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| maximum torque | |||
| Specific output | 7.6 kW/litre 10.4 ps/litre 10.2 bhp/litre 0.17 bhp/cu in |
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| Engine construction | |||
| Lubrication | |||
| compression ratio | |||
| Fuel system | 1 Stromberg carburettor | ||
| bmep (brake mean effective pressure) | |||
| Maximum RPM | |||
| crankshaft bearings | 3 | ||
| Engine coolant | Water | ||
| Unitary capacity | 905 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 | Higher is better 33.55 PS/tonne (1000 kg) 0.03 PS/kg 24.68 kW/tonne (1000 kg) 0.02 kW/kg 33.09 bhp/tonne (1000 kg) 0.03 bhp/kg 0.01 bhp/lb |
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| Weight-to-power ratio | Lower is better 40.52 kg/kW 67.68 lb/bhp |
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| 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 | |||
| Rear suspension | |||
| Wheel size front | |||
| Wheel size rear | |||
| Tyres front | 32 x 3½ | ||
| Tyres rear | 32 x 3½ | ||
| Brakes F/R | -/Dr | ||
| Front brake diameter | |||
| Rear brake diameter | 311 mm | ||
| Braked area | |||
| Gearbox | 3 speed manual | ||
| Top gear ratio | 1 | ||
| Final drive ratio | 4.45 | ||
| general | |||
| Carfolio.com ID | 299739 | ||
| Production total | |||
| Model code | |||
| RAC rating | 22.5 | ||
| Insurance classification | No information available | ||
| Tax band | No information available | ||
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1918 Allen 41 Roadster added 2012-12-17. Last modified 2020-02-02. |
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