The Otas 820 Grand Prix is a coupé with 2 doors and a rear mounted engine which transmits the power through the rear wheels.
The Otas 820 Grand Prix's engine is a naturally aspirated petrol, 0.8 litre, overhead valve 4 cylinder with 2 valves per cylinder. This powerplant develops 52 bhp (53 PS/39 kW) of power at 6500 rpm.
The engine delivers its power through to the wheels via a 4 speed manual gearbox.
Claimed kerb weight is 567 kg.
Full specs
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Applicable to the USA domestic market(s). | ||
| bodywork | |||
|---|---|---|---|
| Body type | 2 seater fixed-head coupé | ||
| Number of doors | 2 | ||
| Designer | |||
| dimensions & weights | |||
| Wheelbase | 2045 mm | 80.5 inches | |
| Track/tread (front) | |||
| Track/tread (rear) | |||
| Length | 3610 mm | 142.1 inches | |
| Width | 1478 mm | 58.2 inches | |
| Height | 1067 mm | 42 inches | |
| Ground clearance | |||
| length:wheelbase ratio | 1.77 | ||
| Kerb weight | 567 kg | 1250 lb | |
| Weight distribution | |||
| fuel tank capacity | 30 litres | 6.6 [7.9] UK [US] gal. | |
| aerodynamics | |||
| Drag coefficient | |||
| Frontal area | |||
| CdA | |||
| Powertrain | |||
| engine type | naturally aspirated petrol | ||
| Engine manufacturer | Fiat | ||
| Engine code | |||
| Cylinders | Straight 4 | ||
| Capacity | 0.8 litre 817 cc (49.856 cu in) |
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| Bore × Stroke | 64 × 63.5 mm
2.52 × 2.5 in |
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| Bore/stroke ratio | 1.01 | ||
| Valve gear | overhead valve (OHV)
2 valves per cylinder 8 valves in total |
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| maximum power output | 53 PS (52 bhp) (39 kW) at 6500 rpm |
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| maximum torque | |||
| Specific output | 47.5 kW/litre 64.5 ps/litre 63.6 bhp/litre 1.04 bhp/cu in |
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| Engine construction | |||
| Lubrication | |||
| compression ratio | 10:1 | ||
| Fuel system | 1 Solex 34 PIBT carburettor | ||
| bmep (brake mean effective pressure) | |||
| Maximum RPM | |||
| crankshaft bearings | |||
| Engine coolant | Water | ||
| Unitary capacity | 204.25 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 | Higher is better 92.99 PS/tonne (1000 kg) 0.09 PS/kg 68.39 kW/tonne (1000 kg) 0.07 kW/kg 91.71 bhp/tonne (1000 kg) 0.09 bhp/kg 0.04 bhp/lb |
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| Weight-to-power ratio | Lower is better 14.62 kg/kW 24.42 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 | rear | ||
| Engine layout | longitudinal | ||
| Drive wheels | rear wheel drive | ||
| Torque split | N/A | ||
| Steering | |||
| turns lock-to-lock | |||
| Turning circle | |||
| Front suspension | |||
| Rear suspension | |||
| Wheel size front | |||
| Wheel size rear | |||
| Tyres front | |||
| Tyres rear | |||
| Brakes F/R | Di/Dr | ||
| Front brake diameter | |||
| Rear brake diameter | |||
| Braked area | |||
| Gearbox | 4 speed manual | ||
| Top gear ratio | 0.96 | ||
| Final drive ratio | 4.63 | ||
| general | |||
| Carfolio.com ID | 813516 | ||
| Production total | |||
| Model code | |||
| RAC rating | 10.2 | ||
| Insurance classification | No information available | ||
| Tax band | No information available | ||
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1971 Otas 820 Grand Prix added 2024-10-30. Last modified 2024-10-30. |
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