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BMW 320

(1975 model)

Brief specs of 1975 BMW 320

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, 81.3 kW / 109.0 hp / 109.0 hp @ 5800 rpm / 5800 rpm / 5800 rpm, 157.0 N·m / 115.8 lb·ft / 115.8 lb·ft @ 3700 rpm / 3700 rpm / 3700 rpm, manual 4-speed transmission, rear wheel drive

units: metric UK US

Basic (general) data

Marque (make)BMWIssued from1975
Model320Issued until
Serie3Number made
Model familyE21Body construction
Model codeBody designation
ManufacturerBMWCountryDE

Bodywork

Base platformNumber of doors4
Bodywork typesedan (saloon)Number of seats5
Bodywork designerCargo capacity (volume)370 l / 13.07 cu ft / 13.07 cu ft
Passenger space (volume)4130 l / 145.85 cu ft / 145.85 cu ftMax. cargo capacity (volume)

Dimensions & Weight

Length4350 mm / 171.3 in / 171.3 inTotal (curb) weight1030 kg / 2271 lb / 2271 lb
Width1613 mm / 63.5 in / 63.5 inDry weight
Height1346 mm / 53.0 in / 53.0 inLoad capacity
Wheelbase2578 mm / 101.5 in / 101.5 inGross (max.) weight
Track front1359 mm / 53.5 in / 53.5 inTowing weight
Track rear1346 mm / 53.0 in / 53.0 inWeight distribution (front)
Ground clearance146 mm / 5.7 in / 5.7 inFuel capacity52 l / 11.5 UK gal / 13.8 US gal
Length/wheelbase ratio1.69  

Aerodynamics

Drag coefficient (Cd, Cx, Cw)Frontal area (A)1.85 m2 / 19.9 sq ft / 19.9 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 supply1 So carbEngine displacement1991 cm3 / 121.5 cu in / 121.5 cu in
Engine Main bearingsUnitary capacity497.75 cm3/cylinder / 30.375 cu in/cylinder / 30.375 cu in/cylinder
Cam DesignSOHC (single overhead camshaft)Compression ratio8.1 : 1
SumpMax. output power81.3 kW / 109.0 hp / 109.0 hp at 5800 rpm / 5800 rpm / 5800 rpm
AspirationnaturalMax. torque157.0 N·m / 115.8 lb·ft / 115.8 lb·ft at 3700 rpm / 3700 rpm / 3700 rpm
Compressor typeN/AMaximum rpm
IntercoolernoMax. net output (power at the wheels)32.5 kW / 43.6 hp / 43.6 hp (est.)
CoolantwaterSpecific output40.8 kW/l / 0.897 bhp/cu in / 0.897 bhp/cu in
Catalytic converternoSpecific torque78.8 N·m/l / 0.69 lb·ft/cu in / 0.69 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) speed
Acceleration 0-60 mph (97 km/h)Power-to-weight ratio105.8 kW/ton / 80.2 bhp/ton / 80.2 bhp/ton
Acceleration 0-100 km/hFuel 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
Steeringrack & pinionSteering details
Turns lock-to-lockTurning circle
Suspension frontIndependent, MacPherson strut, Coil springsSuspension rearIndependent, Semi-trailing arm, Coil springs
Wheels frontWheels rear
Tyres front165/80-SR13Tyres rear165/80-SR13
Brakes frontdiscBrakes reardrum
Brake diameter frontBrake diameter rear
Brakes detailsservo-assistedBraked area

Technical specifications and performance data of BMW 320

Infobox

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