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Alvis Speed Twenty SA

(1932 model)

Brief specs of 1932 Alvis Speed Twenty SA

4-door 2+2-seater roadster, petrol (gasoline) 6-cylinder 12-valve straight (inline) engine, OHV (overhead valve, I-head), 2511 cm3 / 153.2 cu in / 153.2 cu in, 67.1 kW / 90.0 hp / 90.0 hp @ 4500 rpm / 4500 rpm / 4500 rpm, manual 4-speed transmission, 142 km/h / 88 mph / 88 mph top speed

units: metric UK US

Basic (general) data

Marque (make)AlvisIssued from1932
ModelSpeed Twenty SAIssued until
SerieSpeedNumber made
Model familyBody construction
Model codeBody designation
ManufacturerAlvisCountryUK

Bodywork

Base platformNumber of doors4
Bodywork typeroadsterNumber of seats2+2
Bodywork designerCargo capacity (volume)
Passenger space (volume)Max. cargo capacity (volume)

Dimensions & Weight

Length4229 mm / 166.5 in / 166.5 inTotal (curb) weight1321 kg / 2912 lb / 2912 lb
Width1651 mm / 65.0 in / 65.0 inDry weight
HeightLoad capacity
Wheelbase3124 mm / 123.0 in / 123.0 inGross (max.) weight
Track front1321 mm / 52.0 in / 52.0 inTowing weight
Track rear1321 mm / 52.0 in / 52.0 inWeight distribution (front)
Ground clearanceFuel capacity
Length/wheelbase ratio1.35  

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 ManufacturerAlvisValves per cylinder2
Engine constructionBore73.0 mm / 2.87 in / 2.87 in
Fuelpetrol (gasoline)Stroke100.0 mm / 3.94 in / 3.94 in
Fuel detailsBore/Stroke ratio0.73
Fuel supply3 SU carbsEngine displacement2511 cm3 / 153.2 cu in / 153.2 cu in
Engine Main bearings4Unitary capacity418.50 cm3/cylinder / 25.538 cu in/cylinder / 25.538 cu in/cylinder
Cam DesignOHV (overhead valve, I-head)Compression ratio
SumpMax. output power67.1 kW / 90.0 hp / 90.0 hp at 4500 rpm / 4500 rpm / 4500 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 output26.7 kW/l / 0.587 bhp/cu in / 0.587 bhp/cu in
Catalytic converternoSpecific torque

Transmission

Transmission typemanualNumber of gears4
Wheel driveTop gear (drive) ratio1
  Final gear (drive) ratio4.7

Performance

Acceleration 0-50 mph (80 km/h)Top (maximal) speed142 km/h / 88 mph / 88 mph
Acceleration 0-60 mph (97 km/h)Power-to-weight ratio68.1 kW/ton / 51.6 bhp/ton / 51.6 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 frontTyres rear
Brakes frontdrumBrakes reardrum
Brake diameter frontBrake diameter rear
Brakes detailsBraked area

Technical specifications and performance data of Alvis Speed Twenty SA

Infobox

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