The Fairthorpe Atomata is a coupé with 2 doors and a front mounted engine which transmits the power to the rear wheels.
The 0.6 litre engine is a naturally aspirated, overhead valve, 2 cylinder that develops 35 bhp (35.5 PS/26.1 kW) of power at 5700 rpm, and maximum torque of 49 N·m (36.1 lb·ft/5 kgm) at 3750 rpm.
Power is transferred to the wheels through a 4 speed manual gearbox.
Stated kerb weight is 470 kg.
Top claimed speed is 119 km/h, which equates to 74 mph.
Full specs
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| bodywork | |||
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| Body type | 2 seater fixed-head coupé | ||
| Number of doors | 2 | ||
| Designer | |||
| dimensions & weights | |||
| Wheelbase | 2057 mm | 81 inches | |
| Track/tread (front) | 1245 mm | 49 inches | |
| Track/tread (rear) | 1232 mm | 48.5 inches | |
| Length | 3277 mm | 129 inches | |
| Width | 1524 mm | 60 inches | |
| Height | 1219 mm | 48 inches | |
| Ground clearance | 178 mm | 7 inches | |
| length:wheelbase ratio | 1.59 | ||
| Kerb weight | 470 kg | 1036 lb | |
| Weight distribution | |||
| fuel tank capacity | 27.3 litres | 6 [7.2] UK [US] gal. | |
| aerodynamics | |||
| Drag coefficient | |||
| Frontal area | |||
| CdA | |||
| Powertrain | |||
| engine type | naturally aspirated petrol | ||
| Engine manufacturer | BSA | ||
| Engine code | |||
| Cylinders | Straight 2 | ||
| Capacity | 0.6 litre 646 cc (39.421 cu in) |
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| Bore × Stroke | 70 × 84 mm
2.76 × 3.31 in |
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| Bore/stroke ratio | 0.83 | ||
| Valve gear | overhead valve (OHV)
2 valves per cylinder 4 valves in total |
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| maximum power output (Gross) |
35.5 PS (35 bhp) (26.1 kW) at 5700 rpm |
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| maximum torque (Gross) |
49 Nm (36.1 ft·lb) (5 kgm) at 3750 rpm |
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| Specific output (Gross) |
40.4 kW/litre 54.9 ps/litre 54.2 bhp/litre 0.89 bhp/cu in |
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| Specific torque (Gross) |
75.85 Nm/litre
0.92 ft·lb/cu3 |
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| Engine construction | |||
| Lubrication | |||
| compression ratio | 6.5:1 | ||
| Fuel system | 1 Am carb | ||
| bmep (brake mean effective pressure) | 953.2 kPa (138.2 psi) | ||
| Maximum RPM | |||
| crankshaft bearings | |||
| Engine coolant | Air | ||
| Unitary capacity | 323 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 | 119 km/h (74 mph) | ||
| Power-to-weight ratio | Higher is better 75.5 PS/tonne (1000 kg) 0.08 PS/kg 55.53 kW/tonne (1000 kg) 0.06 kW/kg 74.47 bhp/tonne (1000 kg) 0.07 bhp/kg 0.03 bhp/lb |
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| Weight-to-power ratio | Lower is better 18.01 kg/kW 30.08 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 | unknown | ||
| Drive wheels | rear wheel drive | ||
| Torque split | N/A | ||
| Steering | |||
| turns lock-to-lock | 2.300 | ||
| Turning circle | 8.20 m | ||
| Front suspension | I.CS. | ||
| Rear suspension | LA.CS. | ||
| Wheel size front | |||
| Wheel size rear | |||
| Tyres front | 5.20-13 | ||
| Tyres rear | 5.20-13 | ||
| Brakes F/R | Dr/Dr-H | ||
| Front brake diameter | |||
| Rear brake diameter | |||
| Braked area | |||
| Gearbox | 4 speed manual | ||
| Top gear ratio | 1 | ||
| Final drive ratio | 4.55 | ||
| general | |||
| Carfolio.com ID | 47157 | ||
| Production total | |||
| Model code | |||
| RAC rating | 6.1 | ||
| Insurance classification | No information available | ||
| Tax band | No information available | ||
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1957 Fairthorpe Atomata added before December 1995. Last modified 2013-02-28. |
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