The Coltman 20 hp is a tourer-bodied automobile with a front positioned engine supplying power to the rear wheels.
It is powered by a naturally aspirated engine of 3.7 litre capacity. This unit features 4 cylinder layout, and 2 valves per cylinder.
The engine powers the wheels via a 4 speed manual transmission.
Full specs
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| bodywork | |||
|---|---|---|---|
| Body type | 4/5 seater tourer | ||
| Number of doors | |||
| Designer | |||
| dimensions & weights | |||
| Wheelbase | 2845 mm | 112 inches | |
| Track/tread (front) | 1397 mm | 55 inches | |
| Track/tread (rear) | 1397 mm | 55 inches | |
| Length | 4013 mm | 158 inches | |
| Width | 1651 mm | 65 inches | |
| Height | |||
| Ground clearance | 229 mm | 9 inches | |
| length:wheelbase ratio | 1.41 | ||
| Kerb weight | |||
| Weight distribution | |||
| fuel tank capacity | |||
| aerodynamics | |||
| Drag coefficient | |||
| Frontal area | |||
| CdA | |||
| Powertrain | |||
| engine type | naturally aspirated petrol | ||
| Engine manufacturer | |||
| Engine code | |||
| Cylinders | Straight 4 | ||
| Capacity | 3.7 litre 3653 cc (222.92 cu in) |
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| Bore × Stroke | 101 × 114 mm
3.98 × 4.49 in |
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| Bore/stroke ratio | 0.89 | ||
| Valve gear |
2 valves per cylinder 8 valves in total |
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| maximum power output | |||
| maximum torque | |||
| Engine construction | |||
| Lubrication | |||
| compression ratio | |||
| Fuel system | 2 SU carburettors | ||
| bmep (brake mean effective pressure) | |||
| Maximum RPM | |||
| crankshaft bearings | |||
| Engine coolant | Water | ||
| Unitary capacity | 913.25 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 | |||
| Rear suspension | |||
| Wheel size front | |||
| Wheel size rear | |||
| Tyres front | 810 x 100 | ||
| Tyres rear | 810 x 100 | ||
| Brakes F/R | |||
| Front brake diameter | |||
| Rear brake diameter | |||
| Braked area | |||
| Gearbox | 4 speed manual | ||
| Top gear ratio | |||
| Final drive ratio | 3.50 | ||
| general | |||
| Carfolio.com ID | 296571 | ||
| Production total | |||
| Model code | |||
| RAC rating | 25.3 | ||
| Insurance classification | No information available | ||
| Tax band | No information available | ||
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1906 Coltman 20 hp (1912) added 2012-11-27. Last modified 2020-02-02. |
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