The Armstrong Siddeley 25 Long Chassis is a saloon (sedan) with a front mounted engine which transmits its power to the rear wheels.
The Armstrong Siddeley 25 Long Chassis's engine is a naturally aspirated petrol, 3.7 litre, overhead valve 6 cylinder with 2 valves per cylinder. It has an output of 85 bhp (86 PS/63 kW) of power at 3500 rpm.
The engine drives the wheels via a 4 speed preselector 'box.
Full specs
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| bodywork | |||
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| Body type | 4/5 seater sedan/saloon | ||
| Number of doors | |||
| Designer | |||
| dimensions & weights | |||
| Wheelbase | 3327 mm | 131 inches | |
| Track/tread (front) | 1524 mm | 60 inches | |
| Track/tread (rear) | 1524 mm | 60 inches | |
| Length | 4724 mm | 186 inches | |
| Width | 1753 mm | 69 inches | |
| Height | |||
| Ground clearance | 178 mm | 7 inches | |
| length:wheelbase ratio | 1.42 | ||
| Kerb weight | |||
| Weight distribution | |||
| fuel tank capacity | 72.7 litres | 16 [19.2] UK [US] gal. | |
| aerodynamics | |||
| Drag coefficient | |||
| Frontal area | |||
| CdA | |||
| Powertrain | |||
| engine type | naturally aspirated petrol | ||
| Engine manufacturer | Armstrong-Siddeley | ||
| Engine code | |||
| Cylinders | Straight 6 | ||
| Capacity | 3.7 litre 3670 cc (223.957 cu in) |
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| Bore × Stroke | 82.5 × 114.3 mm
3.25 × 4.5 in |
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| Bore/stroke ratio | 0.72 | ||
| Valve gear | overhead valve (OHV)
2 valves per cylinder 12 valves in total |
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| maximum power output | 86 PS (85 bhp) (63 kW) at 3500 rpm |
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| maximum torque | |||
| Specific output | 17.3 kW/litre 23.5 ps/litre 23.2 bhp/litre 0.38 bhp/cu in |
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| Engine construction | |||
| Lubrication | |||
| compression ratio | |||
| Fuel system | 1 SU carb | ||
| bmep (brake mean effective pressure) | |||
| Maximum RPM | |||
| crankshaft bearings | |||
| Engine coolant | Water | ||
| Unitary capacity | 611.67 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 | |||
| Tyres rear | |||
| Brakes F/R | |||
| Front brake diameter | |||
| Rear brake diameter | |||
| Braked area | |||
| Gearbox | 4 speed preselector | ||
| Top gear ratio | 1 | ||
| Final drive ratio | 4.36 | ||
| general | |||
| Carfolio.com ID | 49456 | ||
| Production total | |||
| Model code | |||
| RAC rating | 25.3 | ||
| Insurance classification | No information available | ||
| Tax band | No information available | ||
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1937 Armstrong Siddeley 25 Long Chassis added before December 1995. Last modified 2013-02-28. |
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