1973 BMW 525 E12: detailed specifications, performance and economy data

1973 BMW 525 specifications

1973 BMW 525 data
bodywork
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Body type	4/5 seater sedan/saloon
Number of doors	4
Designer	Paul Bracq
dimensions & weights
Wheelbase	2636 mm	103.8 inches
Track/tread (front)	1406 mm	55.4 inches
Track/tread (rear)	1446 mm	56.9 inches
Length	4620 mm	181.9 inches
Width	1690 mm	66.5 inches
Height	1425 mm	56.1 inches
Ground clearance
length:wheelbase ratio	1.75
Kerb weight	1380 kg	3042 lb
Weight distribution
fuel tank capacity	70 litres	15.4 [18.5] UK [US] gal.
aerodynamics
Drag coefficient
Frontal area
CdA
Powertrain
engine type	naturally aspirated petrol
Engine manufacturer	BMW
Engine code
Cylinders	Straight 6
Capacity	2.5 litre 2495 cc (152.254 cu in)
Bore × Stroke	86 × 71.6 mm 3.39 × 2.82 in
Bore/stroke ratio	1.2
Valve gear	single overhead camshaft (SOHC) 2 valves per cylinder 12 valves in total
maximum power output (DIN)	145 PS (143 bhp) (107 kW) at 6000 rpm
maximum torque (DIN)	208 Nm (153 ft·lb) (21.2 kgm) at 4000 rpm
Specific output (DIN)	42.7 kW/litre 58.1 ps/litre 57.3 bhp/litre 0.94 bhp/cu in
Specific torque (DIN)	83.37 Nm/litre 1.01 ft·lb/cu³
Engine construction
Lubrication	wet sumped
compression ratio	9:1
Fuel system	2 Zenith 32/40 INAT carburettors
bmep (brake mean effective pressure)	1047.6 kPa (151.9 psi)
Maximum RPM
crankshaft bearings	7
Engine coolant	Water
Unitary capacity	415.83 cc
Aspiration	Normal
Compressor	N/A
Intercooler	None
Catalytic converter	N
performance
Acceleration 0-80km/h (50mph)
Acceleration 0-60mph
Acceleration 0-100km/h	10.5 s
Acceleration 0-160km/h (100mph)
Standing quarter-mile
Standing kilometre
Maximum speed	192 km/h (119 mph)
Power-to-weight ratio	Higher is better 105.06 PS/tonne (1000 kg) 0.11 PS/kg 77.27 kW/tonne (1000 kg) 0.08 kW/kg 103.62 bhp/tonne (1000 kg) 0.1 bhp/kg 0.05 bhp/lb
Weight-to-power ratio	Lower is better 12.94 kg/kW 21.62 lb/bhp
fuel consumption
Fuel consumption
universal fuel consumption (calculated from the above)
litres/100km
km/litre
UK MPG
US MPG
Carbon dioxide emissions
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.MS.CS.LW.LoTrailLi.ARB.
Rear suspension	I.STA.CS.
Wheel size front	5.5J x 14 H2
Wheel size rear	5.5J x 14 H2
Tyres front	175 HR 14
Tyres rear	175 HR 14
Brakes F/R	Di/Di-S
Front brake diameter	280 mm
Rear brake diameter	272 mm
Braked area
Gearbox	4 speed manual
Top gear ratio	1
Final drive ratio	3.64
general
Carfolio.com ID	119383
Production total
Model code
Model family	E12
RAC rating	27.5
Insurance classification	No information available
Tax band	No information available
1973 BMW 525 added 2004-03-23. Last modified 2013-02-28.