1977 - BMW - 520

Technical Specs of This Model
1. 520 1972
2. 520 1977
General Information
Make BMW
Model 520
Production Year 1977
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 140 mm     (5,5 in)
Length / Wheelbase Ratio 1,75
Weight 1350 kg     (2973,6 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-6
Valves per Cylinder 2    (Total of 12 Pieces)
Engine Displacement 1991 cc     (121,5 cu in)
Bore 80 mm     (3,15 in)
Stroke 66 mm     (2,6 in)
Bore / Stroke Ratio 1,21
Unitary Capacity 331,83 cc/cylinder    (20,25 cu in/cylinder)
Number of Main Bearings 7
Compression Ratio 9,2 : 1
Fuel System Type 1 So 4A1 carb
Aspiration Type Normal
Compressor Type -
Intercooler Type None
Catalytic Converter No
Maximum Engine Power 120 HP     (89,5 kW)
Maximum Engine Power rpm 6000 d/d
Maximum Engine Torque 160 N.m     (118,1 lb.ft ,  16,3 kg.m)
Maximum Engine Torque rpm 4000 d/d
Engine Torque at Max. Engine Power rpm 142,4 N.m    (6000 d/d)
Power / Weight Ratio 88,9 HP/ton    (66,3 W/kg)
Power / Engine Displacement Ratio 60,3 HP/litre    (44,9 kW/litre)
CO2 Emissions
Fuel Consumption
Performance
0 - 80 km/h
0 - 60 mph
0 - 100 km/h 12 s
0 - 160 km/h
80 - 120 km/h (in top gear)
0 - 400 m Acceleration
0 - 1000 m Acceleration
Top Speed 180 km/h   (111,9 mph)
Gearbox and Transmission
Transmission Type 4M
Top Gear Ratio 1 : 1
Final Drive Ratio 3,9 : 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