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Cunningham Roadster

(1920 model)

Brief specs of 1920 Cunningham Roadster

2-seater roadster, petrol (gasoline) 8-cylinder 16-valve V engine, side valves (flathead, L-block, L-head), 7230 cm3 / 441.2 cu in / 441.2 cu in, 67.1 kW / 90.0 hp / 90.0 hp @ 2200 rpm / 2200 rpm / 2200 rpm, manual 4-speed transmission, rear wheel drive, 153 km/h / 95 mph / 95 mph top speed

units: metric UK US

Basic (general) data

Marque (make)CunninghamIssued from1920
ModelRoadsterIssued until
SerieRoadsterNumber made
Model familyBody construction
Model codeBody designation
ManufacturerCunninghamCountryUS

Bodywork

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

Dimensions & Weight

LengthTotal (curb) weight
WidthDry weight
HeightLoad capacity
Wheelbase3353 mm / 132.0 in / 132.0 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 cylinders8
Engine TypeV engine Total number of valves16
Engine ManufacturerValves per cylinder2
Engine constructionBore95.2 mm / 3.75 in / 3.75 in
Fuelpetrol (gasoline)Stroke127.0 mm / 5.00 in / 5.00 in
Fuel detailsBore/Stroke ratio0.75
Fuel supplyEngine displacement7230 cm3 / 441.2 cu in / 441.2 cu in
Engine Main bearingsUnitary capacity903.75 cm3/cylinder / 55.150 cu in/cylinder / 55.150 cu in/cylinder
Cam Designside valves (flathead, L-block, L-head)Compression ratio
SumpMax. output power67.1 kW / 90.0 hp / 90.0 hp at 2200 rpm / 2200 rpm / 2200 rpm
AspirationnaturalMax. torque at
Compressor typeN/AMaximum rpm
IntercoolernoMax. net output (power at the wheels)26.8 kW / 36.0 hp / 36.0 hp (est.)
CoolantwaterSpecific output9.3 kW/l / 0.204 bhp/cu in / 0.204 bhp/cu in
Catalytic converternoSpecific torque

Transmission

Transmission typemanualNumber of gears4
Wheel driverear wheel driveTop gear (drive) ratio
  Final gear (drive) ratio

Performance

Acceleration 0-50 mph (80 km/h)Top (maximal) speed153 km/h / 95 mph / 95 mph
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, Semi-elliptic leaf springsSuspension rearLive axle,3 Quarter-elliptic leaf springs
Wheels frontWheels rear
Tyres frontTyres rear
Brakes frontBrakes rear
Brake diameter frontBrake diameter rear
Brakes detailsBraked area

Technical specifications and performance data of Cunningham Roadster

Infobox

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