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Gray Model O

(1924 model)

Brief specs of 1924 Gray Model O

4-door 5-seater touring car (tourer), petrol (gasoline) 4-cylinder 8-valve straight (inline) engine, side valves (flathead, L-block, L-head), 2707 cm3 / 165.2 cu in / 165.2 cu in, manual 3-speed transmission, rear wheel drive

units: metric UK US

Basic (general) data

Marque (make)GrayIssued from1924
ModelModel OIssued until
SerieModel ONumber made
Model familyBody construction
Model codeBody designation
ManufacturerGrayCountryUS

Bodywork

Base platformNumber of doors4
Bodywork typetouring car (tourer)Number of seats5
Bodywork designerCargo capacity (volume)
Passenger space (volume)Max. cargo capacity (volume)

Dimensions & Weight

LengthTotal (curb) weight830 kg / 1830 lb / 1830 lb
WidthDry weight
HeightLoad capacity
Wheelbase2667 mm / 105.0 in / 105.0 inGross (max.) weight
Track frontTowing weight
Track rearWeight distribution (front)
Ground clearanceFuel capacity
Length/wheelbase ratio  

Aerodynamics

Drag coefficient (Cd, Cx, Cw)Frontal area (A)
Aerodynamic coefficient (Cd×A)Aerodynamic resistance (Aero horse power) at 100 km/h (62 mph)

Engine

Engine CodeTotal number of cylinders4
Engine Typestraight (inline) Total number of valves8
Engine ManufacturerGrayValves per cylinder2
Engine constructionBore92.1 mm / 3.63 in / 3.63 in
Fuelpetrol (gasoline)Stroke101.6 mm / 4.00 in / 4.00 in
Fuel detailsBore/Stroke ratio0.91
Fuel supply1 Scoe carburettorEngine displacement2707 cm3 / 165.2 cu in / 165.2 cu in
Engine Main bearings3Unitary capacity676.75 cm3/cylinder / 41.298 cu in/cylinder / 41.298 cu in/cylinder
Cam Designside valves (flathead, L-block, L-head)Compression ratio
SumpwetMax. output power at
AspirationnaturalMax. torque at
Compressor typeN/AMaximum rpm
IntercoolernoMax. net output (power at the wheels)
CoolantwaterSpecific output
Catalytic converternoSpecific torque

Transmission

Transmission typemanualNumber of gears3
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 ratio
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 frontLive axle, Quarter-elliptic leaf springsSuspension rearLive axle, Quarter-elliptic leaf springs
Wheels frontWheels rear
Tyres front29 x 4.40Tyres rear29 x 4.40
Brakes frontdrumBrakes reardrum
Brake diameter frontBrake diameter rear
Brakes detailsBraked area

Technical specifications and performance data of Gray Model O

Infobox

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