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Bentley 3-Litre

(1921 model)

Brief specs of 1921 Bentley 3-Litre

4-door 5-seater sedan (saloon), petrol (gasoline) 4-cylinder 16-valve straight (inline) engine, SOHC (single overhead camshaft), 2996 cm3 / 182.8 cu in / 182.8 cu in, 52.2 kW / 70.0 hp / 70.0 hp @ 3500 rpm / 3500 rpm / 3500 rpm, manual 4-speed transmission, rear wheel drive, 129 km/h / 80 mph / 80 mph top speed

units: metric UK US

Basic (general) data

Marque (make)BentleyIssued from1921
Model3-LitreIssued until
Serie3-LitreNumber made
Model familyBody construction
Model codeBody designation
ManufacturerBentley Motors Ltd. (VAG Group)CountryUK

Bodywork

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

Dimensions & Weight

Length4343 mm / 171.0 in / 171.0 inTotal (curb) weight1778 kg / 3920 lb / 3920 lb
Width1740 mm / 68.5 in / 68.5 inDry weight
HeightLoad capacity
Wheelbase3048 mm / 120.0 in / 120.0 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 ratio1.42  

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 valves16
Engine ManufacturerBentleyValves per cylinder4
Engine constructionBore80.0 mm / 3.15 in / 3.15 in
Fuelpetrol (gasoline)Stroke149.0 mm / 5.87 in / 5.87 in
Fuel detailsBore/Stroke ratio0.54
Fuel supply2 SU carbsEngine displacement2996 cm3 / 182.8 cu in / 182.8 cu in
Engine Main bearingsUnitary capacity749.00 cm3/cylinder / 45.707 cu in/cylinder / 45.707 cu in/cylinder
Cam DesignSOHC (single overhead camshaft)Compression ratio4.3 : 1
SumpMax. output power52.2 kW / 70.0 hp / 70.0 hp at 3500 rpm / 3500 rpm / 3500 rpm
AspirationnaturalMax. torque at
Compressor typeN/AMaximum rpm
IntercoolernoMax. net output (power at the wheels)20.9 kW / 28.0 hp / 28.0 hp (est.)
CoolantwaterSpecific output17.4 kW/l / 0.383 bhp/cu in / 0.383 bhp/cu in
Catalytic converternoSpecific torque

Transmission

Transmission typemanualNumber of gears4
Wheel driverear wheel driveTop gear (drive) ratio1
  Final gear (drive) ratio3.78

Performance

Acceleration 0-50 mph (80 km/h)Top (maximal) speed129 km/h / 80 mph / 80 mph
Acceleration 0-60 mph (97 km/h)Power-to-weight ratio39.4 kW/ton / 29.8 bhp/ton / 29.8 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 Bentley 3-Litre

Infobox

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