The Diplomat E is a road car from Opel, with rear wheel drive, a front located engine and a 4 door saloon (sedan) body style.
The 2.8 litre engine is a naturally aspirated, overhead valve, 6 cylinder that has an output of 165 bhp (167 PS/123 kW) of power at 5600 rpm, and maximum torque of 229 N·m (169 lb·ft/23.4 kgm) at 4100-4600 rpm.
A 4 speed manual transmission delivers the power to the wheels.
The Opel Diplomat E weighs a stated 1530 kg at the kerb.
Full specs
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| bodywork | |||
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| Body type | 4/5 seater sedan/saloon | ||
| Number of doors | 4 | ||
| Designer | |||
| dimensions & weights | |||
| Wheelbase | 2845 mm | 112 inches | |
| Track/tread (front) | 1510 mm | 59.4 inches | |
| Track/tread (rear) | 1505 mm | 59.3 inches | |
| Length | 4920 mm | 193.7 inches | |
| Width | 1852 mm | 72.9 inches | |
| Height | 1450 mm | 57.1 inches | |
| Ground clearance | 150 mm | 5.9 inches | |
| length:wheelbase ratio | 1.73 | ||
| Kerb weight | 1530 kg | 3373 lb | |
| Weight distribution | |||
| fuel tank capacity | 80 litres | 17.6 [21.1] UK [US] gal. | |
| aerodynamics | |||
| Drag coefficient | |||
| Frontal area | |||
| CdA | |||
| Powertrain | |||
| engine type | naturally aspirated petrol | ||
| Engine manufacturer | Opel | ||
| Engine code | |||
| Cylinders | Straight 6 | ||
| Capacity | 2.8 litre 2784 cc (169.89 cu in) |
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| Bore × Stroke | 92 × 69.8 mm
3.62 × 2.75 in |
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| Bore/stroke ratio | 1.32 | ||
| Valve gear | overhead valve (OHV)
2 valves per cylinder 12 valves in total |
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| maximum power output (DIN) |
167 PS (165 bhp) (123 kW) at 5600 rpm |
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| maximum torque (DIN) |
229 Nm (169 ft·lb) (23.4 kgm) at 4100-4600 rpm |
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| Specific output (DIN) |
44.2 kW/litre 60.1 ps/litre 59.3 bhp/litre 0.97 bhp/cu in |
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| Specific torque (DIN) |
82.26 Nm/litre
0.99 ft·lb/cu3 |
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| Engine construction | |||
| Lubrication | |||
| compression ratio | 9.5:1 | ||
| Fuel system | Bo fuel inj. | ||
| bmep (brake mean effective pressure) | 1033.7 kPa (149.9 psi) | ||
| Maximum RPM | |||
| crankshaft bearings | 7 | ||
| Engine coolant | Water | ||
| Unitary capacity | 464 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 109.34 PS/tonne (1000 kg) 0.11 PS/kg 80.42 kW/tonne (1000 kg) 0.08 kW/kg 107.84 bhp/tonne (1000 kg) 0.11 bhp/kg 0.05 bhp/lb |
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| Weight-to-power ratio | Lower is better 12.43 kg/kW 20.77 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 | |||
| turns lock-to-lock | |||
| Turning circle | 10.80 m | ||
| Front suspension | I.W.CS.ARB. | ||
| Rear suspension | dD.2SwingLoTA.RA.CS.ARB. | ||
| Wheel size front | |||
| Wheel size rear | |||
| Tyres front | |||
| Tyres rear | |||
| Brakes F/R | Di/Di-S | ||
| Front brake diameter | |||
| Rear brake diameter | |||
| Braked area | |||
| Gearbox | 4 speed manual | ||
| Top gear ratio | 1 | ||
| Final drive ratio | 3.67 | ||
| general | |||
| Carfolio.com ID | 69146 | ||
| Production total | |||
| Model code | |||
| RAC rating | 31.5 | ||
| Insurance classification | No information available | ||
| Tax band | No information available | ||
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1972 Opel Diplomat E added 1995-12-11. Last modified 2013-02-28. |
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