The Swallow Doretti Mk I is a rear wheel drive motor vehicle, with the powerplant mounted in the front, and a 2 door convertible/cabriolet body.
Its 2 litre engine is a naturally aspirated, overhead valve, 4 cylinder that has an output of 90 bhp (91 PS/67 kW) of power at 4800 rpm, and maximum torque of 159 N·m (117 lb·ft/16.2 kgm) at 3000 rpm.
The engine supplies its power through to the wheels via a 4 speed manual with overdrive gearbox.
The stated kerb weight is 864 kg.
Maximum stated speed is 169 km/h, or 105 mph.
Full specs
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| bodywork | |||
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| Body type | 2 seater convertible/cabriolet | ||
| Number of doors | 2 | ||
| Designer | |||
| dimensions & weights | |||
| Wheelbase | 2413 mm | 95 inches | |
| Track/tread (front) | 1219 mm | 48 inches | |
| Track/tread (rear) | 1254 mm | 49.4 inches | |
| Length | 3962 mm | 156 inches | |
| Width | 1549 mm | 61 inches | |
| Height | 1295 mm | 51 inches | |
| Ground clearance | 152 mm | 6 inches | |
| length:wheelbase ratio | 1.64 | ||
| Kerb weight | 864 kg | 1905 lb | |
| Weight distribution | 52% front | ||
| fuel tank capacity | 56.8 litres | 12.5 [15] UK [US] gal. | |
| aerodynamics | |||
| Drag coefficient | |||
| Frontal area | |||
| CdA | |||
| Powertrain | |||
| engine type | naturally aspirated petrol | ||
| Engine manufacturer | Triumph | ||
| Engine code | |||
| Cylinders | Straight 4 | ||
| Capacity | 2 litre 1991 cc (121.498 cu in) |
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| Bore × Stroke | 83 × 92 mm
3.27 × 3.62 in |
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| Bore/stroke ratio | 0.9 | ||
| Valve gear | overhead valve (OHV)
2 valves per cylinder 8 valves in total |
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| maximum power output | 91 PS (90 bhp) (67 kW) at 4800 rpm |
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| maximum torque | 159 Nm (117 ft·lb) (16.2 kgm) at 3000 rpm |
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| Specific output | 33.7 kW/litre 45.8 ps/litre 45.2 bhp/litre 0.74 bhp/cu in |
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| Specific torque |
79.86 Nm/litre
0.97 ft·lb/cu3 |
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| Engine construction | |||
| Lubrication | wet sumped | ||
| compression ratio | 8.5:1 | ||
| Fuel system | 2 SU H4 carbs | ||
| bmep (brake mean effective pressure) | 1003.5 kPa (145.6 psi) | ||
| Maximum RPM | |||
| crankshaft bearings | |||
| Engine coolant | Water | ||
| Unitary capacity | 497.75 cc | ||
| Aspiration | Normal | ||
| Compressor | N/A | ||
| Intercooler | None | ||
| Catalytic converter | N | ||
| performance | |||
| Acceleration 0-80km/h (50mph) | 7.8 s | ||
| Acceleration 0-60mph | 11.6 s | ||
| Acceleration 0-100km/h | |||
| Acceleration 0-160km/h (100mph) | |||
| Standing quarter-mile | 18.1 s | ||
| Standing kilometre | |||
| Maximum speed | 169 km/h (105 mph) | ||
| Power-to-weight ratio | Higher is better 105.61 PS/tonne (1000 kg) 0.11 PS/kg 77.68 kW/tonne (1000 kg) 0.08 kW/kg 104.17 bhp/tonne (1000 kg) 0.1 bhp/kg 0.05 bhp/lb |
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| Weight-to-power ratio | Lower is better 12.87 kg/kW 21.5 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 | 11.10 m | ||
| Front suspension | I.CS.W. | ||
| Rear suspension | LA.SE. | ||
| Wheel size front | |||
| Wheel size rear | |||
| Tyres front | 5.50 x 15 | ||
| Tyres rear | 5.50 x 15 | ||
| Brakes F/R | Dr/Dr | ||
| Front brake diameter | 254 mm | ||
| Rear brake diameter | 229 mm | ||
| Braked area | 955 cm2 | ||
| Gearbox | 4 speed manual | ||
| Top gear ratio | 0.82 | ||
| Final drive ratio | 3.70 | ||
| general | |||
| Carfolio.com ID | 32681 | ||
| Production total | |||
| Model code | |||
| RAC rating | 17.1 | ||
| Insurance classification | No information available | ||
| Tax band | No information available | ||
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1954 Swallow Doretti Mk I added before December 1995. Last modified 2013-02-28. |
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