1978 BMW 745i Automatic E23

The BMW 745i is a 4 door sedan/saloon style car with a front mounted engine supplying power to the rear wheels. It is part of BMW's E23 model series. Its 6 cylinder, single overhead camshaft turbocharged engine has 2 valves per cylinder and a volume of 3.2 litres. This unit develops power and torque figures of 248.5 bhp (252 PS/185 kW) at 5200 rpm and 360 Nm (266 lbft/36.7 kgm) at 2600 rpm respectively. The engine powers the wheels via a 3 speed automatic transmission. The claimed weight at the kerb is 1600 kg. Maximum claimed speed is 222 km/h (138 mph).

Pictures

BMW 745i -
BMW 745i
Image courtesy of BMW

Key facts

1978 BMW 745i Automatic E23 information summary

What body style?
4 door sedan/saloon with 4/5 seats
How long?
4860 mm
How heavy?
1600 kg
What size engine?
3.2 litre, 3210 cm3
How many cylinders?
6, Straight
How much power?
252 PS / 248.5 bhp / 185 kW @ 5200 rpm
How much torque?
360 Nm / 266 ft.lb / 36.7 kgm @ 2600 rpm
How fast?
222 km/h, 138 mph

BMW E23 models

4 door sedan/​saloon FR 3A 3210 cm3 180 PS 177.5 bhp 132 kW 1520 kg
4 door sedan/​saloon FR 5M 3430 cm3 218 PS 215 bhp 160 kW 1500 kg
4 door sedan/​saloon FR 4A 3430 cm3 252 PS 248.5 bhp 185 kW 1590 kg
4 door sedan/​saloon FR 3A 3210 cm3 175 PS 173 bhp 129 kW 1610 kg
4 door sedan/​saloon FR 4M 2788 cm3 184 PS 181 bhp 135 kW 1490 kg
4 door sedan/​saloon FR 5M 2788 cm3 184 PS 181 bhp 135 kW 1470 kg
4 door sedan/​saloon FR 3A 2788 cm3 184 PS 181 bhp 135 kW 1505 kg
4 door sedan/​saloon FR 5M 3210 cm3 200 PS 197 bhp 147 kW 1500 kg
4 door sedan/​saloon FR 5M 3453 cm3 218 PS 215 bhp 160 kW 1530 kg
BMW 728 -
4 door sedan/​saloon FR 4M 2788 cm3 170 PS 168 bhp 125 kW 1530 kg
4 door sedan/​saloon FR 3A 2788 cm3 170 PS 168 bhp 125 kW 1550 kg
4 door sedan/​saloon FR 4M 2986 cm3 184 PS 181 bhp 135 kW 1580 kg
4 door sedan/​saloon FR 3A 2986 cm3 184 PS 181 bhp 135 kW 1600 kg
BMW 733i -
4 door sedan/​saloon FR 4M 3210 cm3 200 PS 197 bhp 147 kW 1600 kg
4 door sedan/​saloon FR 3A 3210 cm3 200 PS 197 bhp 147 kW 1620 kg

Similar models

4 door sedan/​saloon FR 5M 4136 cm3 270 PS 266 bhp 198 kW 1780 kg
Mercedes-Benz 500 SE -
4 door sedan/​saloon FR 4A 4973 cm3 240 PS 237 bhp 177 kW 1620 kg
4 door sedan/​saloon FR 4A 4973 cm3 240 PS 237 bhp 177 kW 1656 kg
1978 BMW 745i Automatic data
bodywork
Body type4/5 seater sedan/saloon
Number of doors4
Designer
dimensions & weights
mminches
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 1600 kg 3527 lb
Weight distribution
fuel tank capacity 96 litres 21.1 UK Gal 25.4 US Gal
aerodynamics
Drag coefficient
Frontal area
CdA
engine
engine type turbocharged petrol
Engine manufacturer BMW
Engine code
Cylinders Straight 6
Capacity 3.2 litre
3210 cc
(195.886 cu in)
Bore × Stroke 89 × 86 mm
3.5 × 3.39 in
Bore/stroke ratio 1.03
Valve gear single overhead camshaft (SOHC)
2 valves per cylinder
12 valves in total
maximum power output
(DIN)
252 PS (248.5 bhp) (185 kW)
at 5200 rpm
Specific output
(DIN)
77.4 bhp/litre
1.27 bhp/cu in
maximum torque
(DIN)
360 Nm (266 ft·lb) (36.7 kgm)
at 2600 rpm
Specific torque
(DIN)
112.15 Nm/litre
1.36 ft·lb/cu3
Engine construction
sump wet sumped
compression ratio 7:1
Fuel system Bosch L-Jetronic fuel injection
bmep (brake mean effective pressure) 1409.3 kPa (204.4 psi)
Maximum RPM
crankshaft bearings 7
Engine coolant Water
Unitary capacity 535 cc
Aspiration Turbo
Compressor
Intercooler Y
Catalytic converter N
performance
Acceleration 0-80km/h (50mph)
Acceleration 0-60mph
Acceleration 0-100km/h
Acceleration 0-160km/h (100mph)
Standing quarter-mile 15.6 s
Standing kilometre
Maximum speed 222 km/h (138 mph)
Power-to-weight ratio 157.47 PS/tonne (1000 kg)
115.82 kW/tonne (1000 kg)
155.31 bhp/tonne (1000 kg)
0.07 bhp/lb
Weight-to-power ratio 8.63 kg/kW
14.42 lb/bhp
fuel consumption
Fuel consumption
universal 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 3.800
Turning circle
Front suspension I.MS.CS.ARB.
Rear suspension I.STA.CS.
Wheel size front 6½ x 14
Wheel size rear 6½ x 14
Tyres front 205/70 VR 14
Tyres rear 205/70 VR 14
Brakes F/R VeDi/Di-ABS-S
Front brake diameter 280 mm
Rear brake diameter 280 mm
Braked area
Gearbox 3 speed automatic
Top gear ratio 1
Final drive ratio 3.07
general
Carfolio.com ID213147
Production total
Model code
Model family E23
RAC rating 29.5
Insurance classification No information available
Tax band No information available
1978 BMW 745i Automatic added 2010-05-10.
Last modified 2013-02-28.