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Auto-Union DKW 40S

(1954 model)

Brief specs of 1954 Auto-Union DKW 40S

petrol (gasoline) 3-cylinder straight (inline) engine, two stroke, 741 cm3 / 45.2 cu in / 45.2 cu in, 25.4 kW / 34.1 hp / 34.1 hp @ 4300 rpm / 4300 rpm / 4300 rpm, 64.0 N·m / 47.2 lb·ft / 47.2 lb·ft @ 2500 rpm / 2500 rpm / 2500 rpm, manual 4-speed transmission, front wheel drive

units: metric UK US

Basic (general) data

Marque (make)Auto-UnionIssued from1954
ModelDKW 40SIssued until
SerieDKWNumber made
Model familyBody construction
Model codeBody designation
ManufacturerAuto-UnionCountryDE

Bodywork

Base platformNumber of doors
Bodywork typeNumber of seats
Bodywork designerCargo capacity (volume)
Passenger space (volume)Max. cargo capacity (volume)

Dimensions & Weight

Length3962 mm / 156.0 in / 156.0 inTotal (curb) weight699 kg / 1541 lb / 1541 lb
Width1575 mm / 62.0 in / 62.0 inDry weight
Height1422 mm / 56.0 in / 56.0 inLoad capacity
Wheelbase1905 mm / 75.0 in / 75.0 inGross (max.) weight
Track front1181 mm / 46.5 in / 46.5 inTowing weight
Track rear1200 mm / 47.2 in / 47.2 inWeight distribution (front)
Ground clearance184 mm / 7.2 in / 7.2 inFuel capacity34 l / 7.5 UK gal / 9.0 US gal
Length/wheelbase ratio2.08  

Aerodynamics

Drag coefficient (Cd, Cx, Cw)Frontal area (A)1.90 m2 / 20.5 sq ft / 20.5 sq ft (est.)
Aerodynamic coefficient (Cd×A)Aerodynamic resistance (Aero horse power) at 100 km/h (62 mph)

Engine

Engine CodeTotal number of cylinders3
Engine Typestraight (inline) Total number of valves0
Engine ManufacturerDKWValves per cylinder0
Engine constructionBore68.0 mm / 2.68 in / 2.68 in
Fuelpetrol (gasoline)Stroke68.0 mm / 2.68 in / 2.68 in
Fuel detailsBore/Stroke ratio1
Fuel supply1 So caarbEngine displacement741 cm3 / 45.2 cu in / 45.2 cu in
Engine Main bearingsUnitary capacity247.00 cm3/cylinder / 15.073 cu in/cylinder / 15.073 cu in/cylinder
Cam Designtwo strokeCompression ratio7.2 : 1
SumpMax. output power25.4 kW / 34.1 hp / 34.1 hp at 4300 rpm / 4300 rpm / 4300 rpm
AspirationnaturalMax. torque64.0 N·m / 47.2 lb·ft / 47.2 lb·ft at 2500 rpm / 2500 rpm / 2500 rpm
Compressor typeN/AMaximum rpm
IntercoolernoMax. net output (power at the wheels)10.2 kW / 13.6 hp / 13.6 hp (est.)
CoolantwaterSpecific output34.3 kW/l / 0.753 bhp/cu in / 0.753 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 drivefront wheel driveTop gear (drive) ratio0.94
  Final gear (drive) ratio3.88

Performance

Acceleration 0-50 mph (80 km/h)Top (maximal) speed
Acceleration 0-60 mph (97 km/h)Power-to-weight ratio48.6 kW/ton / 36.9 bhp/ton / 36.9 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
SteeringSteering details
Turns lock-to-lock2.25Turning circle10.0 m / 32.8 ft / 32.8 ft
Suspension frontIndependent, Torsion barSuspension rearIndependent, Torsion bar
Wheels frontWheels rear
Tyres front5.20-12Tyres rear5.20-12
Brakes frontdrumBrakes reardrum
Brake diameter front200 mm / 7.9 in / 7.9 inBrake diameter rear181 mm / 7.1 in / 7.1 in
Brakes detailsBraked area

Technical specifications and performance data of Auto-Union DKW 40S

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