The Lotus Eclat 521 is a 2 door coupé-bodied motor vehicle with a front mounted engine powering the rear wheels.
It is powered by a naturally aspirated engine of 2 litre capacity. This unit features double overhead camshaft valve gear, 4 cylinder layout, and 4 valves per cylinder. It develops 160 bhp (162 PS/119 kW) of power at 6200 rpm, and maximum torque of 190 N·m (140 lb·ft/19.4 kgm) at 4900 rpm.
This power is delivered to the wheels by means of a 5 speed manual gearbox.
The quoted kerb weight is 1055 kg.
Full specs
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| bodywork | |||
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| Body type | 2+2 seater fixed-head coupé | ||
| Number of doors | 2 | ||
| Designer | |||
| dimensions & weights | |||
| Wheelbase | 2438 mm | 96 inches | |
| Track/tread (front) | 1486 mm | 58.5 inches | |
| Track/tread (rear) | 1499 mm | 59 inches | |
| Length | 4458 mm | 175.5 inches | |
| Width | 1816 mm | 71.5 inches | |
| Height | 1194 mm | 47 inches | |
| Ground clearance | |||
| length:wheelbase ratio | 1.83 | ||
| Kerb weight | 1055 kg | 2326 lb | |
| Weight distribution | |||
| fuel tank capacity | 67.3 litres | 14.8 [17.8] UK [US] gal. | |
| aerodynamics | |||
| Drag coefficient | |||
| Frontal area | |||
| CdA | |||
| Powertrain | |||
| engine type | naturally aspirated petrol | ||
| Engine manufacturer | Lotus | ||
| Engine code | Lotus 907 | ||
| Cylinders | Straight 4 | ||
| Capacity | 2 litre 1973 cc (120.4 cu in) |
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| Bore × Stroke | 95.2 × 69.3 mm
3.75 × 2.73 in |
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| Bore/stroke ratio | 1.37 | ||
| Valve gear | double overhead camshaft (DOHC)
4 valves per cylinder 16 valves in total |
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| maximum power output | 162 PS (160 bhp) (119 kW) at 6200 rpm |
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| maximum torque | 190 Nm (140 ft·lb) (19.4 kgm) at 4900 rpm |
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| Specific output | 60.5 kW/litre 82.2 ps/litre 81.1 bhp/litre 1.33 bhp/cu in |
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| Specific torque |
96.3 Nm/litre
1.16 ft·lb/cu3 |
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| Engine construction | |||
| Lubrication | |||
| compression ratio | 9.5:1 | ||
| Fuel system | 2 Dell'Orto DHLA 45 carburettors | ||
| bmep (brake mean effective pressure) | 1210.1 kPa (175.5 psi) | ||
| Maximum RPM | |||
| crankshaft bearings | 5 | ||
| Engine coolant | Water | ||
| Unitary capacity | 493.25 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 153.77 PS/tonne (1000 kg) 0.15 PS/kg 113.09 kW/tonne (1000 kg) 0.11 kW/kg 151.66 bhp/tonne (1000 kg) 0.15 bhp/kg 0.07 bhp/lb |
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| Weight-to-power ratio | Lower is better 8.84 kg/kW 14.77 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 | rack & pinion | ||
| turns lock-to-lock | |||
| Turning circle | |||
| Front suspension | I.W.CS. | ||
| Rear suspension | I.W.CS. | ||
| Wheel size front | |||
| Wheel size rear | |||
| Tyres front | |||
| Tyres rear | |||
| Brakes F/R | Di/Dr | ||
| Front brake diameter | |||
| Rear brake diameter | |||
| Braked area | |||
| Gearbox | 5 speed manual | ||
| Top gear ratio | 0.8 | ||
| Final drive ratio | 4.10 | ||
| general | |||
| Carfolio.com ID | 29964 | ||
| Production total | |||
| Model code | |||
| RAC rating | 22.5 | ||
| Insurance classification | No information available | ||
| Tax band | No information available | ||
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1974 Lotus Eclat 521 added before December 1995. Last modified 2013-04-09. |
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