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BMW 520

(1977 model)

Brief specs of 1977 BMW 520

4-door 5-seater sedan (saloon), petrol (gasoline) 6-cylinder 12-valve straight (inline) engine, SOHC (single overhead camshaft), 1991 cm3 / 121.5 cu in / 121.5 cu in, 89.5 kW / 120.0 hp / 120.0 hp @ 6000 rpm / 6000 rpm / 6000 rpm, 160.0 N·m / 118.0 lb·ft / 118.0 lb·ft @ 4000 rpm / 4000 rpm / 4000 rpm, manual 4-speed transmission, rear wheel drive, 180 km/h / 112 mph / 112 mph top speed

units: metric UK US

Basic (general) data

Marque (make)BMWIssued from1977
Model520Issued until
Serie5Number made
Model familyE12Body construction
Model codeBody designation
ManufacturerBMWCountryDE

Bodywork

Base platformNumber of doors4
Bodywork typesedan (saloon)Number of seats5
Bodywork designerPaul BracqCargo capacity (volume)
Passenger space (volume)4450 l / 157.15 cu ft / 157.15 cu ftMax. cargo capacity (volume)

Dimensions & Weight

Length4620 mm / 181.9 in / 181.9 inTotal (curb) weight1350 kg / 2976 lb / 2976 lb
Width1690 mm / 66.5 in / 66.5 inDry weight
Height1425 mm / 56.1 in / 56.1 inLoad capacity
Wheelbase2636 mm / 103.8 in / 103.8 inGross (max.) weight
Track front1406 mm / 55.4 in / 55.4 inTowing weight
Track rear1442 mm / 56.8 in / 56.8 inWeight distribution (front)
Ground clearance140 mm / 5.5 in / 5.5 inFuel capacity70 l / 15.4 UK gal / 18.5 US gal
Length/wheelbase ratio1.75  

Aerodynamics

Drag coefficient (Cd, Cx, Cw)Frontal area (A)2.05 m2 / 22.0 sq ft / 22.0 sq ft (est.)
Aerodynamic coefficient (Cd×A)Aerodynamic resistance (Aero horse power) at 100 km/h (62 mph)

Engine

Engine CodeTotal number of cylinders6
Engine Typestraight (inline) (Inline, 6 cylinder)Total number of valves12
Engine ManufacturerBMWValves per cylinder2
Engine constructionBore80.0 mm / 3.15 in / 3.15 in
Fuelpetrol (gasoline)Stroke66.0 mm / 2.60 in / 2.60 in
Fuel detailsBore/Stroke ratio1.21
Fuel supply1 So 4A1 carbEngine displacement1991 cm3 / 121.5 cu in / 121.5 cu in
Engine Main bearings7Unitary capacity331.83 cm3/cylinder / 20.250 cu in/cylinder / 20.250 cu in/cylinder
Cam DesignSOHC (single overhead camshaft)Compression ratio9.2 : 1
SumpwetMax. output power89.5 kW / 120.0 hp / 120.0 hp at 6000 rpm / 6000 rpm / 6000 rpm
AspirationnaturalMax. torque160.0 N·m / 118.0 lb·ft / 118.0 lb·ft at 4000 rpm / 4000 rpm / 4000 rpm
Compressor typeN/AMaximum rpm
IntercoolernoMax. net output (power at the wheels)41.2 kW / 55.3 hp / 55.3 hp (est.)
CoolantwaterSpecific output45.0 kW/l / 0.988 bhp/cu in / 0.988 bhp/cu in
Catalytic converternoSpecific torque80.4 N·m/l / 0.70 lb·ft/cu in / 0.70 lb·ft/cu in

Transmission

Transmission typemanualNumber of gears4
Wheel driverear wheel driveTop gear (drive) ratio1
  Final gear (drive) ratio3.9

Performance

Acceleration 0-50 mph (80 km/h)Top (maximal) speed180 km/h / 112 mph / 112 mph
Acceleration 0-60 mph (97 km/h)Power-to-weight ratio88.9 kW/ton / 67.3 bhp/ton / 67.3 bhp/ton
Acceleration 0-100 km/h12.00 s / 12.00 s / 12.00 sFuel consumption, City (urban)
Acceleration 0-100 mph (160 km/h)Fuel consumption, Road (extra-urban)
Acceleration 80-120 km/h (50-70 mph) in topFuel consumption, Mixed (combined)
Standing ¼mile time Fuel consumption, Euro
Standing kilometer time CO2 emissions
  Range

Chassis

Engine locationfrontEngine alignmentlongitudinal
Steeringworm & rollerSteering details
Turns lock-to-lock4.3Turning circle
Suspension frontIndependent, MacPherson strut, Coil springs, Anti-roll (anti-sway) bar (ARB)Suspension rearIndependent, Trailing arm, Coil springs
Wheels front5.5J x 14 H2Wheels rear5.5J x 14 H2
Tyres front175 SR 14Tyres rear175 SR 14
Brakes frontdiscBrakes reardrum
Brake diameter front272 mm / 10.7 in / 10.7 inBrake diameter rear250 mm / 9.8 in / 9.8 in
Brakes detailsservo-assistedBraked area

Technical specifications and performance data of BMW 520

Infobox

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