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Bentley 4½-Litre Supercharged

(1929 model)

Brief specs of 1929 Bentley 4½-Litre Supercharged

4-door 5-seater sedan (saloon), 4-cylinder 8-valve straight (inline) engine, SOHC (single overhead camshaft), 4398 cm3 / 268.4 cu in / 268.4 cu in, 130.5 kW / 175.0 hp / 175.0 hp @ 3500 rpm / 3500 rpm / 3500 rpm, rear wheel drive, 166 km/h / 103 mph / 103 mph top speed

units: metric UK US

Basic (general) data

Marque (make)BentleyIssued from1929
Model4½-Litre SuperchargedIssued until
Serie4.5-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

Length4597 mm / 181.0 in / 181.0 inTotal (curb) weight1727 kg / 3807 lb / 3807 lb
Width1740 mm / 68.5 in / 68.5 inDry weight
HeightLoad capacity
Wheelbase3302 mm / 130.0 in / 130.0 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 ratio1.39  

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 ManufacturerBentleyValves per cylinder2
Engine constructionBore100.0 mm / 3.94 in / 3.94 in
FuelStroke140.0 mm / 5.51 in / 5.51 in
Fuel detailsBore/Stroke ratio0.71
Fuel supply2 SU carbsEngine displacement4398 cm3 / 268.4 cu in / 268.4 cu in
Engine Main bearingsUnitary capacity1099.50 cm3/cylinder / 67.096 cu in/cylinder / 67.096 cu in/cylinder
Cam DesignSOHC (single overhead camshaft)Compression ratio5.1 : 1
SumpMax. output power130.5 kW / 175.0 hp / 175.0 hp at 3500 rpm / 3500 rpm / 3500 rpm
AspirationsuperchargedMax. torque at
Compressor type1 Villiers superchargerMaximum rpm
IntercoolerMax. net output (power at the wheels)17.4 kW / 23.4 hp / 23.4 hp (est.)
CoolantwaterSpecific output29.7 kW/l / 0.652 bhp/cu in / 0.652 bhp/cu in
Catalytic converternoSpecific torque

Transmission

Transmission typeNumber of gears
Wheel driverear wheel driveTop gear (drive) ratio1
  Final gear (drive) ratio

Performance

Acceleration 0-50 mph (80 km/h)10.00 s / 10.00 s / 10.00 sTop (maximal) speed166 km/h / 103 mph / 103 mph
Acceleration 0-60 mph (97 km/h)Power-to-weight ratio101.3 kW/ton / 76.8 bhp/ton / 76.8 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 4½-Litre Supercharged

Infobox

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