The Sapphire 234 is an automobile from Armstrong Siddeley, with rear wheel drive, a front positioned engine and a 4 door saloon (sedan) body style.
Powering the Armstrong Siddeley Sapphire 234 is an overhead valve, 2.3 litre naturally aspirated 4 cylinder powerplant, with 2 valves per cylinder that produces power and torque figures of 120 bhp (122 PS/89 kW) at 5000 rpm and 189 N·m (139 lb·ft/19.3 kgm) at 3500 rpm respectively.
The engine transfers its power through to the wheels via a 4 speed manual transmission.
The stated weight at the kerb is 1360 kg.
Top claimed speed is 155 km/h (96 mph).
Full specs
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| bodywork | |||
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| Body type | 4/5 seater sedan/saloon | ||
| Number of doors | 4 | ||
| Designer | |||
| dimensions & weights | |||
| Wheelbase | 2819 mm | 111 inches | |
| Track/tread (front) | 1400 mm | 55.1 inches | |
| Track/tread (rear) | 1378 mm | 54.3 inches | |
| Length | 4572 mm | 180 inches | |
| Width | 1740 mm | 68.5 inches | |
| Height | 1568 mm | 61.7 inches | |
| Ground clearance | |||
| length:wheelbase ratio | 1.62 | ||
| Kerb weight | 1360 kg | 2998 lb | |
| 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 | 2.3 litre 2290 cc (139.744 cu in) |
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| Bore × Stroke | 90 × 90 mm
3.54 × 3.54 in |
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| Bore/stroke ratio | 1 | ||
| Valve gear | overhead valve (OHV)
2 valves per cylinder 8 valves in total |
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| maximum power output | 122 PS (120 bhp) (89 kW) at 5000 rpm |
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| maximum torque | 189 Nm (139 ft·lb) (19.3 kgm) at 3500 rpm |
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| Specific output | 39.1 kW/litre 53.1 ps/litre 52.4 bhp/litre 0.86 bhp/cu in |
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| Specific torque |
82.53 Nm/litre
1 ft·lb/cu3 |
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| Engine construction | |||
| Lubrication | |||
| compression ratio | 7.5:1 | ||
| Fuel system | 2 SU carbs | ||
| bmep (brake mean effective pressure) | 1037.1 kPa (150.4 psi) | ||
| Maximum RPM | |||
| crankshaft bearings | |||
| Engine coolant | Water | ||
| Unitary capacity | 572.5 cc | ||
| Aspiration | Normal | ||
| Compressor | N/A | ||
| Intercooler | None | ||
| Catalytic converter | N | ||
| performance | |||
| Acceleration 0-80km/h (50mph) | 10.9 s | ||
| Acceleration 0-60mph | |||
| Acceleration 0-100km/h | |||
| Acceleration 0-160km/h (100mph) | |||
| Standing quarter-mile | 20.2 s | ||
| Standing kilometre | |||
| Maximum speed | 155 km/h (96 mph) | ||
| Power-to-weight ratio | Higher is better 89.46 PS/tonne (1000 kg) 0.09 PS/kg 65.8 kW/tonne (1000 kg) 0.07 kW/kg 88.24 bhp/tonne (1000 kg) 0.09 bhp/kg 0.04 bhp/lb |
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| Weight-to-power ratio | Lower is better 15.2 kg/kW 25.39 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 | I.CS. | ||
| 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 manual | ||
| Top gear ratio | 0.77 | ||
| Final drive ratio | 4.54 | ||
| general | |||
| Carfolio.com ID | 27632 | ||
| Production total | |||
| Model code | |||
| RAC rating | 20.1 | ||
| Insurance classification | No information available | ||
| Tax band | No information available | ||
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1955 Armstrong Siddeley Sapphire 234 added before December 1995. Last modified 2013-02-28. |
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