1972 - BMW - 520

Technical Specs of This Model
1. 520 1972
2. 520 1977
General Information
Make BMW
Model 520
Production Year 1972
Country
Designer Paul Bracq
Production Number
Model Code
Model Family E12
Chassis and Dimensions
Chassis Type 4/5S SAL
Number of Doors 4
Wheelbase 2636 mm     (103,8 in)
Front Track 1406 mm     (55,4 in)
Rear Track 1442 mm     (56,8 in)
Length 4620 mm     (181,9 in)
Width 1690 mm     (66,5 in)
Height 1425 mm     (56,1 in)
Ground Clearance
Length / Wheelbase Ratio 1,75
Weight 1230 kg     (2709,3 lb)
Weight Distribution (front/rear)
Fuel Capacity 70 litre   (15,4 Imp gal ,  18,5 US gal)
Aerodynamics
Drag Coefficient
Frontal Area
Cx
Engine Specifications
Engine Manufacturer BMW
Engine Location Front
Engine Alignment Longitudinal
Engine Construction
Coolant Type Water
Engine Type SOHC
Number of Cylinders and Placement S-4
Valves per Cylinder 2    (Total of 8 Pieces)
Engine Displacement 1991 cc     (121,5 cu in)
Bore 89 mm     (3,5 in)
Stroke 80 mm     (3,15 in)
Bore / Stroke Ratio 1,11
Unitary Capacity 497,75 cc/cylinder    (30,37 cu in/cylinder)
Number of Main Bearings 5
Compression Ratio 9 : 1
Fuel System Type 1 St 175 CDET carb
Aspiration Type Normal
Compressor Type -
Intercooler Type None
Catalytic Converter No
Maximum Engine Power 113 HP     (84,3 kW)
Maximum Engine Power rpm 5800 d/d
Maximum Engine Torque 165 N.m     (121,8 lb.ft ,  16,8 kg.m)
Maximum Engine Torque rpm 3700 d/d
Engine Torque at Max. Engine Power rpm 138,7 N.m    (5800 d/d)
Power / Weight Ratio 91,9 HP/ton    (68,5 W/kg)
Power / Engine Displacement Ratio 56,8 HP/litre    (42,3 kW/litre)
CO2 Emissions
Fuel Consumption
Performance
0 - 80 km/h
0 - 60 mph 11,9 s
0 - 100 km/h 12,3 s
0 - 160 km/h
80 - 120 km/h (in top gear)
0 - 400 m Acceleration 18,2 s
0 - 1000 m Acceleration
Top Speed 172 km/h   (106,9 mph)
Gearbox and Transmission
Transmission Type 4M
Top Gear Ratio 1 : 1
Final Drive Ratio 4,1 : 1
Drive Wheels RWD (Rear Wheel Drive)
Handling, Suspension Geometry and Brakes
Steering Type worm & roller
Steering Turns (lock to lock) 4,3
Turning Circle Diameter
Suspension (front) I.MS.CS.ARB.
Suspension (rear) I.TA.CS.
Brakes (front/rear) Di/Dr-S
Brake Disc Diameter (front) 272 mm
Brake Disc Diameter (rear) 250 mm
Wheels (front) 5.5J x 14 H2
Wheels (rear) 5.5J x 14 H2
Tyres (front) 175 SR 14
Tyres (rear) 175 SR 14