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Rolls-Royce 20

(1922 model)

Brief specs of 1922 Rolls-Royce 20

4-door 5-seater sedan (saloon), petrol (gasoline) 6-cylinder 12-valve straight (inline) engine, side valves (flathead, L-block, L-head), 3127 cm3 / 190.8 cu in / 190.8 cu in, 37.3 kW / 50.0 hp / 50.0 hp @ 3000 rpm / 3000 rpm / 3000 rpm, manual 3-speed transmission, rear wheel drive, 105 km/h / 65 mph / 65 mph top speed

units: metric UK US

Basic (general) data

Marque (make)Rolls-RoyceIssued from1922
Model20Issued until
Serie20Number made
Model familyBody construction
Model codeBody designation
ManufacturerRolls-Royce Motor CarsCountryUK

Bodywork

Base platformNumber of doors4
Bodywork typesedan (saloon)Number of seats5
Bodywork designerCargo capacity (volume)
Passenger space (volume)Max. cargo capacity (volume)

Dimensions & Weight

Length4521 mm / 178.0 in / 178.0 inTotal (curb) weight1930 kg / 4255 lb / 4255 lb
WidthDry weight
HeightLoad capacity
Wheelbase3277 mm / 129.0 in / 129.0 inGross (max.) weight
Track front1422 mm / 56.0 in / 56.0 inTowing weight
Track rear1422 mm / 56.0 in / 56.0 inWeight distribution (front)
Ground clearanceFuel capacity
Length/wheelbase ratio1.38  

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 cylinders6
Engine Typestraight (inline) Total number of valves12
Engine ManufacturerRolls-RoyceValves per cylinder2
Engine constructionBore76.2 mm / 3.00 in / 3.00 in
Fuelpetrol (gasoline)Stroke114.3 mm / 4.50 in / 4.50 in
Fuel detailsBore/Stroke ratio0.67
Fuel supply1 Rolls-Royce carbEngine displacement3127 cm3 / 190.8 cu in / 190.8 cu in
Engine Main bearings7Unitary capacity521.17 cm3/cylinder / 31.804 cu in/cylinder / 31.804 cu in/cylinder
Cam Designside valves (flathead, L-block, L-head)Compression ratio4.8 : 1
SumpMax. output power37.3 kW / 50.0 hp / 50.0 hp at 3000 rpm / 3000 rpm / 3000 rpm
AspirationnaturalMax. torque at
Compressor typeN/AMaximum rpm
IntercoolernoMax. net output (power at the wheels)14.9 kW / 20.0 hp / 20.0 hp (est.)
CoolantwaterSpecific output11.9 kW/l / 0.262 bhp/cu in / 0.262 bhp/cu in
Catalytic converternoSpecific torque

Transmission

Transmission typemanualNumber of gears3
Wheel driverear wheel driveTop gear (drive) ratio
  Final gear (drive) ratio

Performance

Acceleration 0-50 mph (80 km/h)Top (maximal) speed105 km/h / 65 mph / 65 mph
Acceleration 0-60 mph (97 km/h)Power-to-weight ratio25.9 kW/ton / 19.6 bhp/ton / 19.6 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 frontLive axle, Semi-elliptic leaf springsSuspension rearLive axle, Semi-elliptic leaf springs
Wheels frontWheels rear
Tyres front32 x 4.5Tyres rear32 x 4.5
Brakes frontBrakes reardrum
Brake diameter frontBrake diameter rear
Brakes detailsBraked area

Technical specifications and performance data of Rolls-Royce 20

Infobox

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