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Allard J2X

(1952 model)

Brief specs of 1952 Allard J2X

2-door 2-seater roadster, petrol (gasoline) 8-cylinder 16-valve V engine, OHV (overhead valve, I-head), 5416 cm3 / 330.5 cu in / 330.5 cu in, 134.2 kW / 180.0 hp / 180.0 hp @ 2400 rpm / 2400 rpm / 2400 rpm, 437.0 N·m / 322.3 lb·ft / 322.3 lb·ft @ 2400 rpm / 2400 rpm / 2400 rpm, rear wheel drive, 193 km/h / 120 mph / 120 mph top speed

units: metric UK US

Basic (general) data

Marque (make)AllardIssued from1952
ModelJ2XIssued until
SerieJNumber made83
Model familyBody construction
Model codeBody designation
ManufacturerAllardCountryUK

Bodywork

Base platformNumber of doors2
Bodywork typeroadsterNumber of seats2
Bodywork designerCargo capacity (volume)
Passenger space (volume)Max. cargo capacity (volume)

Dimensions & Weight

Length3937 mm / 155.0 in / 155.0 inTotal (curb) weight1226 kg / 2703 lb / 2703 lb
Width1727 mm / 68.0 in / 68.0 inDry weight
Height1130 mm / 44.5 in / 44.5 inLoad capacity
Wheelbase2540 mm / 100.0 in / 100.0 inGross (max.) weight
Track front1422 mm / 56.0 in / 56.0 inTowing weight
Track rear1321 mm / 52.0 in / 52.0 inWeight distribution (front)
Ground clearanceFuel capacity
Length/wheelbase ratio1.55  

Aerodynamics

Drag coefficient (Cd, Cx, Cw)Frontal area (A)1.66 m2 / 17.9 sq ft / 17.9 sq ft (est.)
Aerodynamic coefficient (Cd×A)Aerodynamic resistance (Aero horse power) at 100 km/h (62 mph)

Engine

Engine CodeTotal number of cylinders8
Engine TypeV engine Total number of valves16
Engine ManufacturerGMValves per cylinder2
Engine constructionBore96.8 mm / 3.81 in / 3.81 in
Fuelpetrol (gasoline)Stroke92.0 mm / 3.62 in / 3.62 in
Fuel detailsBore/Stroke ratio1.05
Fuel supplyEngine displacement5416 cm3 / 330.5 cu in / 330.5 cu in
Engine Main bearingsUnitary capacity677.00 cm3/cylinder / 41.313 cu in/cylinder / 41.313 cu in/cylinder
Cam DesignOHV (overhead valve, I-head)Compression ratio7.5 : 1
SumpMax. output power134.2 kW / 180.0 hp / 180.0 hp at 2400 rpm / 2400 rpm / 2400 rpm
AspirationnaturalMax. torque437.0 N·m / 322.3 lb·ft / 322.3 lb·ft at 2400 rpm / 2400 rpm / 2400 rpm
Compressor typeN/AMaximum rpm
IntercoolernoMax. net output (power at the wheels)55.2 kW / 74.1 hp / 74.1 hp (est.)
CoolantwaterSpecific output24.8 kW/l / 0.545 bhp/cu in / 0.545 bhp/cu in
Catalytic converternoSpecific torque80.7 N·m/l / 0.71 lb·ft/cu in / 0.71 lb·ft/cu in

Transmission

Transmission typeNumber of gears
Wheel driverear wheel driveTop gear (drive) ratio1
  Final gear (drive) ratio3.27

Performance

Acceleration 0-50 mph (80 km/h)Top (maximal) speed193 km/h / 120 mph / 120 mph
Acceleration 0-60 mph (97 km/h)8.00 s / 8.00 s / 8.00 sPower-to-weight ratio146.8 kW/ton / 111.2 bhp/ton / 111.2 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
SteeringSteering details
Turns lock-to-lockTurning circle
Suspension frontSuspension rear
Wheels frontWheels rear
Tyres frontTyres rear
Brakes frontBrakes rear
Brake diameter frontBrake diameter rear
Brakes detailsBraked area

Technical specifications and performance data of Allard J2X

Infobox

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(...)

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