The BMW 728 is a rear wheel drive road car, with its powerplant mounted in the front, and a 4 door saloon (sedan) body designed by Paul Bracq.
It is part of BMW's E23 model series.
It is powered by a naturally aspirated engine of 2.8 litre capacity. This unit features single overhead camshaft valve gear, 6 cylinder layout, and 2 valves per cylinder. It produces 168 bhp (170 PS/125 kW) of power at 5800 rpm, and maximum torque of 233 N·m (172 lb·ft/23.8 kgm) at 4000 rpm.
A 3 speed automatic gearbox delivers the power to the driven wheels.
Quoted weight at the kerb is 1550 kg.
The BMW 728 is claimed to manage a top speed of 186 km/h, or 116 mph.
Full specs
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| Karosserie | |||
|---|---|---|---|
| Karosserie | 4/5 seater sedan/saloon | ||
| Anzahl türen | 4 | ||
| Entwerfer | Paul Bracq | ||
| Maße und Gewicht | |||
| Radstand | 2795 | 110 Zoll | |
| Spurweite vorn | 1508 | 59.4 Zoll | |
| Spurweite hinten | 1522 | 59.9 Zoll | |
| Länge | 4860 | 191.3 Zoll | |
| Breite | 1800 | 70.9 Zoll | |
| Höhe | 1430 | 56.3 Zoll | |
| Bodenfreiheit | |||
| 1.74 | |||
| Leergewicht | 1550 kg | 3417 Pfund | |
| Gewichtsverteilung (vorn) | |||
| Tankinhalt | 85 litres | 18.7 [22.5] UK [US] gal. | |
| Aerodynamik | |||
| Luftwiderstandsbeiwert | |||
| Stirnfläche | |||
| CdA | |||
| Motorisierung | |||
| naturally aspirated petrol | |||
| Motor Hersteller | BMW | ||
| Motor-Typ | M30B28 | ||
| Anzahl zylinders | Straight 6 | ||
| Hubraum | 2.8 litre 2788 cc (170.134 cu in) |
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| Bohrung × Hub | 86 × 80 mm
3.39 × 3.15 in |
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| Bohrung/Hub Verhältnis | 1.08 | ||
| Verteilung | single overhead camshaft (SOHC)
2 Ventile pro Zylinder 12 Insgesamt Ventile |
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| Leistung (DIN) |
170 PS (168 bhp) (125 kW) bei 5800 U/min |
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| Max. Drehmoment (DIN) |
233 Nm (172 ft·lb) (23.8 kgm) bei 4000 U/min |
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| spezifisches Leistung (DIN) |
44.9 kW/litre 61.1 ps/litre 60.3 bhp/litre 0.99 bhp/cu in |
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| Spezifisches Drehmoment (DIN) |
83.57 Nm/litre
1.01 ft·lb/cu3 |
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| Engine construction | |||
| Schmierung | nassersumpf | ||
| Verdichtungsverhältnis | 9:1 | ||
| Vergasser/Einspritzung | 1 Solex 4 A 1 carburettor | ||
| effektiver Mitteldruck | 1050.2 kPa (152.3 psi) | ||
| Höchstdrezahl | |||
| Anzahl der Kurbelwellenlager | |||
| Abkühlen | Water | ||
| Einheitszylinderinhalt | 464.67 cc | ||
| Aspiration | Normal | ||
| Kompressor-typ | N/A | ||
| Ladeluftkühler | None | ||
| Katalysator | N | ||
| Fahrleistungen | |||
| 0-80km/h | |||
| 0-60mph | |||
| 0-100km/h | 11.2 s | ||
| 0-160km/h | |||
| 0-400m | |||
| 0-1000m | |||
| Vmax/Höchstgeschwindigkeit | 186 km/h (116 mph) | ||
| Power-to-weight ratio | Higher is better 109.89 PS/tonne (1000 kg) 0.11 PS/kg 80.82 kW/tonne (1000 kg) 0.08 kW/kg 108.39 bhp/tonne (1000 kg) 0.11 bhp/kg 0.05 bhp/lb |
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| Weight-to-power ratio | Lower is better 12.37 kg/kW 20.67 lb/bhp |
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| Verbrauch | |||
| Verbrauch | |||
| 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) | |||
| Fahrgestell | |||
| Motor Platzierung | front | ||
| Engine layout | longitudinal | ||
| Antrieb | rear wheel drive | ||
| Drehmomentverteilung | N/A | ||
| Lenkungtyp | |||
| Lenkradumdrehungen | |||
| Wendekruis | |||
| Radaufhängen vorn | I.CS.ARB. | ||
| Radaufhängen hintern | I.STA.CS. | ||
| Rädergröße vorn | 6J x 14 H2 | ||
| Rädergröße hintern | 6J x 14 H2 | ||
| Reifen vorn | 195/70 HR 14 | ||
| Reifen hintern | 195/70 HR 14 | ||
| Bremsen vorn/hintern | VeDi/Di-S | ||
| Bremse Durchmesser vorn | 280 mm | ||
| Bremse Durchmesser hintern | 280 mm | ||
| Braked area | |||
| Getriebe | 3 gang Automatikgetriebe | ||
| Hinterachse | 1 | ||
| Hinterachse Übersetzungen | 3.64 | ||
| Allgemein | |||
| Carfolio.com ID | 253539 | ||
| Production total | |||
| Modellnummer | |||
| E23 | |||
| RAC rating | 27.5 | ||
| Insurance classification | No information available | ||
| Tax band | No information available | ||
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1977 BMW 728 Automatic added 2011-08-19. Last modified 2020-02-02. |
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