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Alvis 12-70

(1938 model)

Brief specs of 1938 Alvis 12-70

4-seater drophead coupé (convertible coupé), petrol (gasoline) 4-cylinder 8-valve straight (inline) engine, OHV (overhead valve, I-head), 1842 cm3 / 112.4 cu in / 112.4 cu in, 47.4 kW / 63.6 hp / 63.6 hp @ 4250 rpm / 4250 rpm / 4250 rpm, manual 4-speed transmission, rear wheel drive

units: metric UK US

Basic (general) data

Marque (make)AlvisIssued from1938
Model12-70Issued until
Serie12Number made
Model familyBody construction
Model codeBody designation
ManufacturerAlvisCountryUK

Bodywork

Base platformNumber of doors
Bodywork typedrophead coupé (convertible coupé)Number of seats4
Bodywork designerCargo capacity (volume)
Passenger space (volume)Max. cargo capacity (volume)

Dimensions & Weight

Length4343 mm / 171.0 in / 171.0 inTotal (curb) weight1270 kg / 2800 lb / 2800 lb
Width1575 mm / 62.0 in / 62.0 inDry weight
HeightLoad capacity
Wheelbase2692 mm / 106.0 in / 106.0 inGross (max.) weight
Track front1270 mm / 50.0 in / 50.0 inTowing weight
Track rear1270 mm / 50.0 in / 50.0 inWeight distribution (front)
Ground clearance165 mm / 6.5 in / 6.5 inFuel capacity51 l / 11.2 UK gal / 13.5 US gal
Length/wheelbase ratio1.61  

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 ManufacturerAlvisValves per cylinder2
Engine constructionBore73.0 mm / 2.87 in / 2.87 in
Fuelpetrol (gasoline)Stroke110.0 mm / 4.33 in / 4.33 in
Fuel detailsBore/Stroke ratio0.66
Fuel supply1 So carbEngine displacement1842 cm3 / 112.4 cu in / 112.4 cu in
Engine Main bearingsUnitary capacity460.50 cm3/cylinder / 28.101 cu in/cylinder / 28.101 cu in/cylinder
Cam DesignOHV (overhead valve, I-head)Compression ratio
SumpMax. output power47.4 kW / 63.6 hp / 63.6 hp at 4250 rpm / 4250 rpm / 4250 rpm
AspirationnaturalMax. torque at
Compressor typeN/AMaximum rpm
IntercoolernoMax. net output (power at the wheels)19.0 kW / 25.4 hp / 25.4 hp (est.)
CoolantwaterSpecific output25.7 kW/l / 0.565 bhp/cu in / 0.565 bhp/cu in
Catalytic converternoSpecific torque

Transmission

Transmission typemanualNumber of gears4
Wheel driverear wheel driveTop gear (drive) ratio1
  Final gear (drive) ratio5

Performance

Acceleration 0-50 mph (80 km/h)Top (maximal) speed
Acceleration 0-60 mph (97 km/h)Power-to-weight ratio50.0 kW/ton / 37.9 bhp/ton / 37.9 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 frontBrakes rear
Brake diameter frontBrake diameter rear
Brakes detailsBraked area

Technical specifications and performance data of Alvis 12-70

Infobox

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