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Aston Martin DB 2/4 Mk II

(1955 model)

Brief specs of 1955 Aston Martin DB 2/4 Mk II

2-door 2+2-seater fixed-head coupé, petrol (gasoline) 6-cylinder 12-valve straight (inline) engine, DOHC (double overhead camshafts, twin cam), 2922 cm3 / 178.3 cu in / 178.3 cu in, 104.4 kW / 140.0 hp / 140.0 hp @ 5000 rpm / 5000 rpm / 5000 rpm, 241.0 N·m / 177.8 lb·ft / 177.8 lb·ft @ 3000 rpm / 3000 rpm / 3000 rpm, manual 4-speed transmission, rear wheel drive, 179 km/h / 111 mph / 111 mph top speed

units: metric UK US

Basic (general) data

Marque (make)Aston MartinIssued from1955
ModelDB 2/4 Mk IIIssued until
SerieDB2Number made
Model familyBody construction
Model codeBody designation
ManufacturerAston Martin Lagonda Ltd.CountryUK

Bodywork

Base platformNumber of doors2
Bodywork typefixed-head coupéNumber of seats2+2
Bodywork designerCargo capacity (volume)
Passenger space (volume)Max. cargo capacity (volume)

Dimensions & Weight

Length4305 mm / 169.5 in / 169.5 inTotal (curb) weight1177 kg / 2595 lb / 2595 lb
Width1651 mm / 65.0 in / 65.0 inDry weight
Height1360 mm / 53.5 in / 53.5 inLoad capacity
Wheelbase2515 mm / 99.0 in / 99.0 inGross (max.) weight
Track front1372 mm / 54.0 in / 54.0 inTowing weight
Track rear1372 mm / 54.0 in / 54.0 inWeight distribution (front)
Ground clearanceFuel capacity
Length/wheelbase ratio1.71  

Aerodynamics

Drag coefficient (Cd, Cx, Cw)Frontal area (A)1.63 m2 / 17.5 sq ft / 17.5 sq ft
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 ManufacturerAston MartinValves per cylinder2
Engine constructionBore83.0 mm / 3.27 in / 3.27 in
Fuelpetrol (gasoline)Stroke90.0 mm / 3.54 in / 3.54 in
Fuel detailsBore/Stroke ratio0.92
Fuel supply2 SU carbsEngine displacement2922 cm3 / 178.3 cu in / 178.3 cu in
Engine Main bearingsUnitary capacity487.00 cm3/cylinder / 29.719 cu in/cylinder / 29.719 cu in/cylinder
Cam DesignDOHC (double overhead camshafts, twin cam)Compression ratio8.2 : 1
SumpMax. output power104.4 kW / 140.0 hp / 140.0 hp at 5000 rpm / 5000 rpm / 5000 rpm
AspirationnaturalMax. torque241.0 N·m / 177.8 lb·ft / 177.8 lb·ft at 3000 rpm / 3000 rpm / 3000 rpm
Compressor typeN/AMaximum rpm
IntercoolernoMax. net output (power at the wheels)14.1 kW / 18.9 hp / 18.9 hp (est.)
CoolantwaterSpecific output35.7 kW/l / 0.785 bhp/cu in / 0.785 bhp/cu in
Catalytic converternoSpecific torque82.5 N·m/l / 0.72 lb·ft/cu in / 0.72 lb·ft/cu in

Transmission

Transmission typemanualNumber of gears4
Wheel driverear wheel driveTop gear (drive) ratio1
  Final gear (drive) ratio3.77

Performance

Acceleration 0-50 mph (80 km/h)8.90 s / 8.90 s / 8.90 sTop (maximal) speed179 km/h / 111 mph / 111 mph
Acceleration 0-60 mph (97 km/h)Power-to-weight ratio119.0 kW/ton / 90.1 bhp/ton / 90.1 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 front2LSBrakes rearLT
Brake diameter frontBrake diameter rear
Brakes detailsGHBraked area

Technical specifications and performance data of Aston Martin DB 2/4 Mk II

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