BMW 321 (1938 - 1950)
Video
Details
| dimensions & weights | |||
|---|---|---|---|
| mm | inches | ||
| Wheelbase | 2750 | 108.3 | |
| Track/tread (front) | 1300 | 51.2 | |
| Track/tread (rear) | 1300 | 51.2 | |
| Length | 4500 | 177.2 | |
| Width | 1670 | 65.7 | |
| Height | 1500 | 59.1 | |
| length:wheelbase ratio | 1.64 | ||
| Kerb weight | 1000 kg | 2205 lb | |
| fuel tank capacity | 50 litres | 11 UK Gal | 13.2 US Gal |
| engine | |||
| engine type | naturally aspirated petrol | ||
| Engine manufacturer | BMW | ||
| Cylinders | Straight 6 | ||
| Capacity | 2 litre 1971 cc (120.278 cu in) |
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| Bore × Stroke | 66 × 96 mm 2.6 × 3.78 in |
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| Bore/stroke ratio | 0.69 | ||
| Valve gear | overhead valve (OHV) 2 valves per cylinder 12 valves in total |
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| maximum power output | 45.6 PS (45 bhp) (33.6 kW) at 3750 rpm |
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| Specific output | 22.8 bhp/litre 0.37 bhp/cu in |
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| compression ratio | 6:1 | ||
| Fuel system | 1 So 30 BFLVS carb | ||
| crankshaft bearings | 4 | ||
| Engine coolant | Water | ||
| Unitary capacity | 328.5 cc | ||
| Aspiration | Normal | ||
| Intercooler | None | ||
| Catalytic converter | N | ||
| performance | |||
| Acceleration 0-100km/h | 35 s | ||
| Maximum speed | 109 km/h (68 mph) | ||
| Power-to-weight ratio | 45.63 PS/tonne (1000 kg) 33.56 kW/tonne (1000 kg) 45 bhp/tonne (1000 kg) 0.02 bhp/lb |
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| Weight-to-power ratio | 29.8 kg/kW 49.78 lb/bhp |
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| chassis | |||
| Engine position | front | ||
| Engine layout | longitudinal | ||
| Drive wheels | rear wheel drive | ||
| Steering | rack & pinion | ||
| Turning circle | 11.00 m | ||
| Front suspension | LA.TW.TL. | ||
| Rear suspension | LA.SE. | ||
| Wheel size front | 3.50D x 16 | ||
| Wheel size rear | 3.50D x 16 | ||
| Tyres front | 5.50 x 16 | ||
| Tyres rear | 5.50 x 16 | ||
| Brakes F/R | Dr/Dr | ||
| Gearbox | 4 speed manual | ||
| Top gear ratio | 1 | ||
| Final drive ratio | 4.38 | ||