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Jaguar XK 120 Roadster

(1948 model)

Brief specs of 1948 Jaguar XK 120 Roadster

2-door 2-seater roadster, petrol (gasoline) 6-cylinder 12-valve straight (inline) engine, DOHC (double overhead camshafts, twin cam), 3442 cm3 / 210.0 cu in / 210.0 cu in, 119.3 kW / 160.0 hp / 160.0 hp @ 5000 rpm / 5000 rpm / 5000 rpm, 264.0 N·m / 194.7 lb·ft / 194.7 lb·ft @ 2500 rpm / 2500 rpm / 2500 rpm, manual 4-speed transmission, rear wheel drive, 201 km/h / 125 mph / 125 mph top speed

units: metric UK US

Basic (general) data

Marque (make)JaguarIssued from1948
ModelXK 120 RoadsterIssued until
SerieXKNumber made
Model familyBody construction
Model codeBody designation
ManufacturerJaguarCountryUK

Bodywork

Base platformNumber of doors2
Bodywork typeroadsterNumber of seats2
Bodywork designerWilliam LyonsCargo capacity (volume)
Passenger space (volume)4040 l / 142.67 cu ft / 142.67 cu ftMax. cargo capacity (volume)

Dimensions & Weight

Length4420 mm / 174.0 in / 174.0 inTotal (curb) weight1295 kg / 2855 lb / 2855 lb
Width1562 mm / 61.5 in / 61.5 inDry weight
Height1334 mm / 52.5 in / 52.5 inLoad capacity
Wheelbase2591 mm / 102.0 in / 102.0 inGross (max.) weight
Track front1295 mm / 51.0 in / 51.0 inTowing weight
Track rear1270 mm / 50.0 in / 50.0 inWeight distribution (front)
Ground clearanceFuel capacity63 l / 13.9 UK gal / 16.6 US gal
Length/wheelbase ratio1.71  

Aerodynamics

Drag coefficient (Cd, Cx, Cw)Frontal area (A)1.77 m2 / 19.1 sq ft / 19.1 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 ManufacturerJaguarValves per cylinder2
Engine constructionBore83.0 mm / 3.27 in / 3.27 in
Fuelpetrol (gasoline)Stroke106.0 mm / 4.17 in / 4.17 in
Fuel detailsBore/Stroke ratio0.78
Fuel supply2 SU carbsEngine displacement3442 cm3 / 210.0 cu in / 210.0 cu in
Engine Main bearingsUnitary capacity573.67 cm3/cylinder / 35.007 cu in/cylinder / 35.007 cu in/cylinder
Cam DesignDOHC (double overhead camshafts, twin cam)Compression ratio8.0 : 1
SumpMax. output power119.3 kW / 160.0 hp / 160.0 hp at 5000 rpm / 5000 rpm / 5000 rpm
AspirationnaturalMax. torque264.0 N·m / 194.7 lb·ft / 194.7 lb·ft at 2500 rpm / 2500 rpm / 2500 rpm
Compressor typeN/AMaximum rpm
IntercoolernoMax. net output (power at the wheels)45.7 kW / 61.3 hp / 61.3 hp (est.)
CoolantwaterSpecific output34.7 kW/l / 0.762 bhp/cu in / 0.762 bhp/cu in
Catalytic converternoSpecific torque76.7 N·m/l / 0.67 lb·ft/cu in / 0.67 lb·ft/cu in

Transmission

Transmission typemanualNumber of gears4
Wheel driverear wheel driveTop gear (drive) ratio1
  Final gear (drive) ratio3.64

Performance

Acceleration 0-50 mph (80 km/h)7.30 s / 7.30 s / 7.30 sTop (maximal) speed201 km/h / 125 mph / 125 mph
Acceleration 0-60 mph (97 km/h)10.00 s / 10.00 s / 10.00 sPower-to-weight ratio123.5 kW/ton / 93.6 bhp/ton / 93.6 bhp/ton
Acceleration 0-100 km/hFuel consumption, City (urban)
Acceleration 0-100 mph (160 km/h)27.30 s / 27.30 s / 27.30 sFuel 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-lockTurning circle
Suspension frontSuspension rear
Wheels frontWheels rear
Tyres front6.70x16Tyres rear
Brakes frontBrakes rear
Brake diameter frontBrake diameter rear
Brakes detailsBraked area

Technical specifications and performance data of Jaguar XK 120 Roadster

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