The 7 Superlight R400 is a rear wheel drive roadster motor vehicle with a front mounted engine, sold by Caterham.
Its 4 cylinder, double overhead camshaft naturally aspirated engine has 4 valves per cylinder and a displacement of 1.8 litres. For this model it produces power and torque figures of 200 bhp (203 PS/149 kW) at 7500 rpm and 210 Nm (155 lbft/21.4 kgm) at 5750 rpm respectively.
The engine supplies its power through to the wheels via a 6 speed manual transmission.
Stated kerb weight is 490 kg.
The Caterham 7 Superlight R400 is claimed to manage a maxiumum speed of 225 km/h or 140 mph.
Full specs
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| bodywork | |||
|---|---|---|---|
| Body type | 2 seater roadster | ||
| Number of doors | 2 | ||
| Designer | |||
| dimensions & weights | |||
| Wheelbase | 2225 mm | 87.6 inches | |
| Track/tread (front) | |||
| Track/tread (rear) | |||
| Length | 3100 mm | 122 inches | |
| Width | 1575 mm | 62 inches | |
| Height | 800 mm | 31.5 inches | |
| Ground clearance | |||
| length:wheelbase ratio | 1.39 | ||
| Kerb weight | 490 kg | 1080 lb | |
| Weight distribution | |||
| fuel tank capacity | |||
| aerodynamics | |||
| Drag coefficient | |||
| Frontal area | |||
| CdA | |||
| Powertrain | |||
| engine type | naturally aspirated petrol | ||
| Engine manufacturer | Rover | ||
| Engine code | |||
| Cylinders | Straight 4 | ||
| Capacity | 1.8 litre 1796 cc (109.599 cu in) |
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| Bore × Stroke | 80 × 89.3 mm
3.15 × 3.52 in |
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| Bore/stroke ratio | 0.9 | ||
| Valve gear | double overhead camshaft (DOHC)
4 valves per cylinder 16 valves in total |
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| maximum power output | 203 PS (200 bhp) (149 kW) at 7500 rpm |
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| maximum torque | 210 Nm (155 ft·lb) (21.4 kgm) at 5750 rpm |
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| Specific output | 83 kW/litre 112.9 ps/litre 111.4 bhp/litre 1.82 bhp/cu in |
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| Specific torque |
116.93 Nm/litre
1.41 ft·lb/cu3 |
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| Engine construction | |||
| Lubrication | |||
| compression ratio | |||
| Fuel system | EFi | ||
| bmep (brake mean effective pressure) | 1469.3 kPa (213.1 psi) | ||
| Maximum RPM | |||
| crankshaft bearings | |||
| Engine coolant | Water | ||
| Unitary capacity | 449 cc | ||
| Aspiration | Normal | ||
| Compressor | N/A | ||
| Intercooler | None | ||
| Catalytic converter | Y | ||
| performance | |||
| Acceleration 0-80km/h (50mph) | |||
| Acceleration 0-60mph | 3.9 s | ||
| Acceleration 0-100km/h | |||
| Acceleration 0-160km/h (100mph) | |||
| Standing quarter-mile | |||
| Standing kilometre | |||
| Maximum speed | 225 km/h (140 mph) | ||
| Power-to-weight ratio | Higher is better 413.84 PS/tonne (1000 kg) 0.41 PS/kg 304.37 kW/tonne (1000 kg) 0.3 kW/kg 408.16 bhp/tonne (1000 kg) 0.41 bhp/kg 0.18 bhp/lb |
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| Weight-to-power ratio | Lower is better 3.29 kg/kW 5.49 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 | 1.930 | ||
| Turning circle | |||
| Front suspension | I.W.ARB. | ||
| Rear suspension | dD.WL.CS.ARB. | ||
| Wheel size front | 6J x 15 | ||
| Wheel size rear | 7J x 15 | ||
| Tyres front | |||
| Tyres rear | |||
| Brakes F/R | VeDi/Di | ||
| Front brake diameter | |||
| Rear brake diameter | |||
| Braked area | |||
| Gearbox | 6 speed manual | ||
| Top gear ratio | 1 | ||
| Final drive ratio | 3.62 | ||
| general | |||
| Carfolio.com ID | 118129 | ||
| Production total | |||
| Model code | |||
| RAC rating | 15.9 | ||
| Insurance classification | No information available | ||
| Tax band | No information available | ||
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2003 Caterham 7 Superlight R400 added 2004-01-15. Last modified 2013-02-28. |
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