The Caterham Seven 420 is a roadster-bodied car with a front mounted engine driving through the rear wheels.
Its 4 cylinder, double overhead camshaft naturally aspirated engine has 4 valves per cylinder and a displacement of 2 litres. In this application it develops power and torque figures of 210 bhp (213 PS/157 kW) at 7600 rpm and 203 Nm (150 lbft/20.7 kgm) at 6300 rpm respectively. Lubrication is of the dry sump-type.
The engine drives the wheels through a 5 speed manual transmission.
Its quoted kerb weight is 560 kg.
The Caterham Seven 420 is said to be able to manage a maxiumum speed of 219 km/h (136 mph).
Full specs
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| bodywork | |||
|---|---|---|---|
| Body type | 2 seater roadster | ||
| Number of doors | 0 | ||
| 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 | 990 mm | 39 inches | |
| Ground clearance | |||
| length:wheelbase ratio | 1.39 | ||
| Kerb weight | 560 kg | 1235 lb | |
| Weight distribution | |||
| fuel tank capacity | 36 litres | 7.9 [9.5] UK [US] gal. | |
| aerodynamics | |||
| Drag coefficient | |||
| Frontal area | |||
| CdA | |||
| Powertrain | |||
| engine type | naturally aspirated petrol | ||
| Engine manufacturer | Ford | ||
| Engine code | |||
| Cylinders | Straight 4 | ||
| Capacity | 2 litre 1999 cc (121.986 cu in) |
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| Bore × Stroke | 87.5 × 83.1 mm
3.44 × 3.27 in |
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| Bore/stroke ratio | 1.05 | ||
| Valve gear | double overhead camshaft (DOHC)
4 valves per cylinder 16 valves in total |
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| maximum power output | 213 PS (210 bhp) (157 kW) at 7600 rpm |
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| maximum torque | 203 Nm (150 ft·lb) (20.7 kgm) at 6300 rpm |
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| Specific output | 78.3 kW/litre 106.5 ps/litre 105.1 bhp/litre 1.72 bhp/cu in |
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| Specific torque |
101.55 Nm/litre
1.23 ft·lb/cu3 |
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| Engine construction | |||
| Lubrication | dry sumped | ||
| compression ratio | 10.8:1 | ||
| Fuel system | |||
| bmep (brake mean effective pressure) | 1276.1 kPa (185.1 psi) | ||
| Maximum RPM | 7600 rpm | ||
| crankshaft bearings | 5 | ||
| Engine coolant | Water | ||
| Unitary capacity | 499.75 cc | ||
| Aspiration | Normal | ||
| Compressor | N/A | ||
| Intercooler | None | ||
| Catalytic converter | Y | ||
| performance | |||
| Acceleration 0-80km/h (50mph) | |||
| Acceleration 0-60mph | 3.8 s | ||
| Acceleration 0-100km/h | |||
| Acceleration 0-160km/h (100mph) | |||
| Standing quarter-mile | |||
| Standing kilometre | |||
| Maximum speed | 219 km/h (136 mph) | ||
| Power-to-weight ratio | Higher is better 380.21 PS/tonne (1000 kg) 0.38 PS/kg 279.64 kW/tonne (1000 kg) 0.28 kW/kg 375 bhp/tonne (1000 kg) 0.38 bhp/kg 0.17 bhp/lb |
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| Weight-to-power ratio | Lower is better 3.58 kg/kW 5.97 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.DW.CS.ARB. | ||
| Rear suspension | dD.RA. | ||
| Wheel size front | |||
| Wheel size rear | |||
| Tyres front | 185/60 x 14 | ||
| Tyres rear | 185/60 x 14 | ||
| Brakes F/R | Di/Di | ||
| Front brake diameter | |||
| Rear brake diameter | |||
| Braked area | |||
| Gearbox | 5 speed manual | ||
| Top gear ratio | 0.81 | ||
| Final drive ratio | 3.92 | ||
| general | |||
| Carfolio.com ID | 530365 | ||
| Production total | |||
| Model code | |||
| RAC rating | 19.0 | ||
| Insurance classification | No information available | ||
| Tax band | No information available | ||
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2015 Caterham Seven 420 added 2017-10-01. Last modified 2020-04-30. |
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