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BMW 520i

(1975 model)

Brief specs of 1975 BMW 520i

4-door 5-seater sedan (saloon), petrol (gasoline) 4-cylinder 8-valve straight (inline) engine, SOHC (single overhead camshaft), 1991 cm3 / 121.5 cu in / 121.5 cu in, 91.7 kW / 123.0 hp / 123.0 hp @ 5700 rpm / 5700 rpm / 5700 rpm, 172.0 N·m / 126.9 lb·ft / 126.9 lb·ft @ 4350 rpm / 4350 rpm / 4350 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 from1975
Model520iIssued 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)520 l / 18.36 cu ft / 18.36 cu ft
Passenger space (volume)3970 l / 140.20 cu ft / 140.20 cu ftMax. cargo capacity (volume)

Dimensions & Weight

Length4620 mm / 181.9 in / 181.9 inTotal (curb) weight1295 kg / 2855 lb / 2855 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 clearanceFuel 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 cylinders4
Engine Typestraight (inline) (Inline, 4 cylinder)Total number of valves8
Engine ManufacturerBMWValves per cylinder2
Engine constructionBore89.0 mm / 3.50 in / 3.50 in
Fuelpetrol (gasoline)Stroke80.0 mm / 3.15 in / 3.15 in
Fuel detailsBore/Stroke ratio1.11
Fuel supplyBo K-Jet fuel inj.Engine displacement1991 cm3 / 121.5 cu in / 121.5 cu in
Engine Main bearings5Unitary capacity497.75 cm3/cylinder / 30.375 cu in/cylinder / 30.375 cu in/cylinder
Cam DesignSOHC (single overhead camshaft)Compression ratio9.3 : 1
SumpwetMax. output power91.7 kW / 123.0 hp / 123.0 hp at 5700 rpm / 5700 rpm / 5700 rpm
AspirationnaturalMax. torque172.0 N·m / 126.9 lb·ft / 126.9 lb·ft at 4350 rpm / 4350 rpm / 4350 rpm
Compressor typeN/AMaximum rpm
IntercoolernoMax. net output (power at the wheels)39.4 kW / 52.9 hp / 52.9 hp (est.)
CoolantwaterSpecific output46.1 kW/l / 1.012 bhp/cu in / 1.012 bhp/cu in
Catalytic converternoSpecific torque86.4 N·m/l / 0.76 lb·ft/cu in / 0.76 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)7.40 s / 7.40 s / 7.40 sTop (maximal) speed180 km/h / 112 mph / 112 mph
Acceleration 0-60 mph (97 km/h)Power-to-weight ratio95.0 kW/ton / 72.0 bhp/ton / 72.0 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, Anti-roll (anti-sway) bar (ARB)
Wheels front5.5J x 14 H2Wheels rear5.5J x 14 H2
Tyres front175 HR 14Tyres rear175 HR 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-assisted, ABS (anti-lock braking system)Braked area

Technical specifications and performance data of BMW 520i

Infobox

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