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| Technical Specs of This Model |
| 1. |
728 1977
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| General Information |
| Make |
BMW |
| Model |
728 |
| Production Year |
1977 |
| Country |
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| Designer |
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| Production Number |
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| Model Code |
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| Model Family |
E23 |
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| Chassis and Dimensions |
| Chassis Type |
4/5S SAL |
| Number of Doors |
4 |
| Wheelbase |
2790 mm (109,8 in) |
| Front Track |
1509 mm (59,4 in) |
| Rear Track |
1521 mm (59,9 in) |
| Length |
4860 mm (191,3 in) |
| Width |
1800 mm (70,9 in) |
| Height |
1430 mm (56,3 in) |
| Ground Clearance |
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| Length / Wheelbase Ratio |
1,74 |
| Weight |
1530 kg (3370 lb) |
| Weight Distribution (front/rear) |
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| Fuel Capacity |
85 litre (18,7 Imp gal , 22,5 US gal) |
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| Aerodynamics |
| Drag Coefficient |
0,42 |
| Frontal Area |
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| Cx |
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| Engine Specifications |
| Engine Manufacturer |
BMW |
| Engine Location |
Front |
| Engine Alignment |
Longitudinal |
| Engine Construction |
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| Coolant Type |
Water |
| Engine Type |
SOHC |
| Number of Cylinders and Placement |
S-6 |
| Valves per Cylinder |
2 (Total of 12 Pieces) |
| Engine Displacement |
2788 cc (170,13 cu in) |
| Bore |
86 mm (3,39 in) |
| Stroke |
80 mm (3,15 in) |
| Bore / Stroke Ratio |
1,08 |
| Unitary Capacity |
464,67 cc/cylinder (28,36 cu in/cylinder) |
| Number of Main Bearings |
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| Compression Ratio |
9 : 1 |
| Fuel System Type |
1 So carb |
| Aspiration Type |
Normal |
| Compressor Type |
- |
| Intercooler Type |
None |
| Catalytic Converter |
No |
| Maximum Engine Power |
170 HP (126,8 kW) |
| Maximum Engine Power rpm |
6000 d/d |
| Maximum Engine Torque |
235 N.m (173,4 lb.ft , 24 kg.m) |
| Maximum Engine Torque rpm |
3700 d/d |
| Engine Torque at Max. Engine Power rpm |
201,8 N.m (6000 d/d) |
| Power / Weight Ratio |
111,1 HP/ton (82,9 W/kg) |
| Power / Engine Displacement Ratio |
61 HP/litre (45,5 kW/litre) |
| CO2 Emissions |
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| Fuel Consumption |
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| Performance |
| 0 - 80 km/h |
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| 0 - 60 mph |
9,8 s |
| 0 - 100 km/h |
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| 0 - 160 km/h |
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| 80 - 120 km/h (in top gear) |
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| 0 - 400 m Acceleration |
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| 0 - 1000 m Acceleration |
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| Top Speed |
193 km/h (120 mph) |
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| Gearbox and Transmission |
| Transmission Type |
4M |
| Top Gear Ratio |
1 : 1 |
| Final Drive Ratio |
3,64 : 1 |
| Drive Wheels |
RWD (Rear Wheel Drive) |
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| Handling, Suspension Geometry and Brakes |
| Steering Type |
recirculating ball PAS |
| Steering Turns (lock to lock) |
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| Turning Circle Diameter |
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| Suspension (front) |
I.CS.ARB. |
| Suspension (rear) |
I.STA.CS. |
| Brakes (front/rear) |
Di/Di |
| Brake Disc Diameter (front) |
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| Brake Disc Diameter (rear) |
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| Wheels (front) |
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| Wheels (rear) |
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| Tyres (front) |
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| Tyres (rear) |
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