The BMW 733i is a saloon (sedan) designed by Paul Bracq with 4 doors and a front mounted engine which transmits its power through the rear wheels.
It is part of BMW's E23 family of cars.
Its 6 cylinder, single overhead camshaft naturally aspirated engine has 2 valves per cylinder and a displacement of 3.2 litres. This unit provides power and torque figures of 197 bhp (200 PS/147 kW) at 5500 rpm and 280 Nm (207 lbft/28.6 kgm) at 4300 rpm respectively.
The power is transmitted to the wheels via a 3 speed automatic transmission.
Quoted weight at the kerb is 1620 kg.
Its maximum speed claimed is 198 km/h (123 mph).
Full specs
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| bodywork | |||
|---|---|---|---|
| Body type | 4/5 seater sedan/saloon | ||
| Number of doors | 4 | ||
| Designer | Paul Bracq | ||
| dimensions & weights | |||
| Wheelbase | 2795 mm | 110 inches | |
| Track/tread (front) | 1502 mm | 59.1 inches | |
| Track/tread (rear) | 1516 mm | 59.7 inches | |
| Length | 4860 mm | 191.3 inches | |
| Width | 1800 mm | 70.9 inches | |
| Height | 1430 mm | 56.3 inches | |
| Ground clearance | |||
| length:wheelbase ratio | 1.74 | ||
| Kerb weight | 1620 kg | 3571 lb | |
| Weight distribution | |||
| fuel tank capacity | 85 litres | 18.7 [22.5] UK [US] gal. | |
| aerodynamics | |||
| Drag coefficient | |||
| Frontal area | |||
| CdA | |||
| Powertrain | |||
| engine type | naturally aspirated petrol | ||
| Engine manufacturer | BMW | ||
| Engine code | M30B32 | ||
| Cylinders | Straight 6 | ||
| Capacity | 3.2 litre 3210 cc (195.886 cu in) |
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| Bore × Stroke | 89 × 86 mm
3.5 × 3.39 in |
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| Bore/stroke ratio | 1.03 | ||
| Valve gear | single overhead camshaft (SOHC)
2 valves per cylinder 12 valves in total |
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| maximum power output (DIN) |
200 PS (197 bhp) (147 kW) at 5500 rpm |
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| maximum torque (DIN) |
280 Nm (207 ft·lb) (28.6 kgm) at 4300 rpm |
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| Specific output (DIN) |
45.8 kW/litre 62.2 ps/litre 61.4 bhp/litre 1.01 bhp/cu in |
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| Specific torque (DIN) |
87.23 Nm/litre
1.05 ft·lb/cu3 |
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| Engine construction | |||
| Lubrication | wet sumped | ||
| compression ratio | 9:1 | ||
| Fuel system | Bosch L-Jetronic fuel injection | ||
| bmep (brake mean effective pressure) | 1096.1 kPa (159 psi) | ||
| Maximum RPM | |||
| crankshaft bearings | 7 | ||
| Engine coolant | Water | ||
| Unitary capacity | 535 cc | ||
| Aspiration | Normal | ||
| Compressor | N/A | ||
| Intercooler | None | ||
| Catalytic converter | N | ||
| performance | |||
| Acceleration 0-80km/h (50mph) | |||
| Acceleration 0-60mph | |||
| Acceleration 0-100km/h | 10.6 s | ||
| Acceleration 0-160km/h (100mph) | |||
| Standing quarter-mile | |||
| Standing kilometre | |||
| Maximum speed | 198 km/h (123 mph) | ||
| Power-to-weight ratio | Higher is better 123.3 PS/tonne (1000 kg) 0.12 PS/kg 90.68 kW/tonne (1000 kg) 0.09 kW/kg 121.6 bhp/tonne (1000 kg) 0.12 bhp/kg 0.05 bhp/lb |
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| Weight-to-power ratio | Lower is better 11.03 kg/kW 18.42 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 | front | ||
| Engine layout | longitudinal | ||
| Drive wheels | rear wheel drive | ||
| Torque split | N/A | ||
| Steering | |||
| turns lock-to-lock | |||
| Turning circle | |||
| Front suspension | I.CS.ARB. | ||
| Rear suspension | I.STA.CS. | ||
| Wheel size front | 6½J x 14 H2 | ||
| Wheel size rear | 6½J x 14 H2 | ||
| Tyres front | 205/70 VR 14 | ||
| Tyres rear | 205/70 VR 14 | ||
| Brakes F/R | VeDi/Di-S | ||
| Front brake diameter | 280 mm | ||
| Rear brake diameter | 280 mm | ||
| Braked area | |||
| Gearbox | 3 speed automatic | ||
| Top gear ratio | 1 | ||
| Final drive ratio | 3.45 | ||
| general | |||
| Carfolio.com ID | 253506 | ||
| Production total | |||
| Model code | |||
| Model family | E23 | ||
| RAC rating | 29.5 | ||
| Insurance classification | No information available | ||
| Tax band | No information available | ||
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1977 BMW 733i Automatic added 2011-08-19. Last modified 2020-02-02. |
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