The Singer SM Roadster is a rear wheel drive automobile, with its engine located in the front, and a 2 door roadster body.
The 4 cylinder, single overhead camshaft naturally aspirated powerplant has 2 valves per cylinder and a volume of 1.5 litres. In this application it provides power and torque figures of 48 bhp (48.7 PS/35.8 kW) at 4200 rpm and 98 Nm (72 lbft/10 kgm) at 2200 rpm respectively.
The engine delivers its power through to the wheels via a 4 speed manual transmission.
The Singer SM Roadster weighs a stated 840 kg at the kerb.
It is said to be able to attain a maxiumum speed of 121 km/h (75 mph).
Full specs
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| bodywork | |||
|---|---|---|---|
| Body type | 2 seater roadster | ||
| Number of doors | 2 | ||
| Designer | |||
| dimensions & weights | |||
| Wheelbase | 2311 mm | 91 inches | |
| Track/tread (front) | 1187 mm | 46.7 inches | |
| Track/tread (rear) | 1187 mm | 46.7 inches | |
| Length | 3850 mm | 151.6 inches | |
| Width | 1473 mm | 58 inches | |
| Height | 1232 mm | 48.5 inches | |
| Ground clearance | |||
| length:wheelbase ratio | 1.67 | ||
| Kerb weight | 840 kg | 1852 lb | |
| Weight distribution | 54.5% front | ||
| fuel tank capacity | |||
| aerodynamics | |||
| Drag coefficient | |||
| Frontal area | |||
| CdA | |||
| Powertrain | |||
| engine type | naturally aspirated petrol | ||
| Engine manufacturer | Singer | ||
| Engine code | |||
| Cylinders | Straight 4 | ||
| Capacity | 1.5 litre 1497 cc (91.353 cu in) |
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| Bore × Stroke | 73 × 89.4 mm
2.87 × 3.52 in |
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| Bore/stroke ratio | 0.82 | ||
| Valve gear | single overhead camshaft (SOHC)
2 valves per cylinder 8 valves in total |
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| maximum power output | 48.7 PS (48 bhp) (35.8 kW) at 4200 rpm |
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| maximum torque | 98 Nm (72 ft·lb) (10 kgm) at 2200 rpm |
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| Specific output | 23.9 kW/litre 32.5 ps/litre 32.1 bhp/litre 0.53 bhp/cu in |
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| Specific torque |
65.46 Nm/litre
0.79 ft·lb/cu3 |
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| Engine construction | |||
| Lubrication | |||
| compression ratio | 7:1 | ||
| Fuel system | 1 So carb | ||
| bmep (brake mean effective pressure) | 822.6 kPa (119.3 psi) | ||
| Maximum RPM | |||
| crankshaft bearings | |||
| Engine coolant | Water | ||
| Unitary capacity | 374.25 cc | ||
| Aspiration | Normal | ||
| Compressor | N/A | ||
| Intercooler | None | ||
| Catalytic converter | N | ||
| performance | |||
| Acceleration 0-80km/h (50mph) | 13.7 s | ||
| Acceleration 0-60mph | 20.8 s | ||
| Acceleration 0-100km/h | |||
| Acceleration 0-160km/h (100mph) | |||
| Standing quarter-mile | 22 s | ||
| Standing kilometre | |||
| Maximum speed | 121 km/h (75 mph) | ||
| Power-to-weight ratio | Higher is better 57.94 PS/tonne (1000 kg) 0.06 PS/kg 42.61 kW/tonne (1000 kg) 0.04 kW/kg 57.14 bhp/tonne (1000 kg) 0.06 bhp/kg 0.03 bhp/lb |
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| Weight-to-power ratio | Lower is better 23.47 kg/kW 39.2 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 | 2LS/ -GHM | ||
| Front brake diameter | |||
| Rear brake diameter | |||
| Braked area | |||
| Gearbox | 4 speed manual | ||
| Top gear ratio | 1 | ||
| Final drive ratio | 4.87 | ||
| general | |||
| Carfolio.com ID | 45320 | ||
| Production total | |||
| Model code | |||
| RAC rating | 13.2 | ||
| Insurance classification | No information available | ||
| Tax band | No information available | ||
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1951 Singer SM Roadster added before December 1995. Last modified 2013-02-28. |
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