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Healey Silverstone

(1949 model)

Brief specs of 1949 Healey Silverstone

2-door 2-seater roadster, petrol (gasoline) 4-cylinder 8-valve straight (inline) engine, OHV (overhead valve, I-head), 2443 cm3 / 149.1 cu in / 149.1 cu in, 77.6 kW / 104.1 hp / 104.1 hp @ 4500 rpm / 4500 rpm / 4500 rpm, 179.0 N·m / 132.0 lb·ft / 132.0 lb·ft @ 3000 rpm / 3000 rpm / 3000 rpm, manual 4-speed transmission, rear wheel drive, 182 km/h / 113 mph / 113 mph top speed

units: metric UK US

Basic (general) data

Marque (make)HealeyIssued from1949
ModelSilverstoneIssued until
SerieSilverstoneNumber made105
Model familyBody construction
Model codeBody designation
ManufacturerHealeyCountryUK

Bodywork

Base platformNumber of doors2
Bodywork typeroadsterNumber of seats2
Bodywork designerLen HodgesCargo capacity (volume)
Passenger space (volume)Max. cargo capacity (volume)

Dimensions & Weight

Length4267 mm / 168.0 in / 168.0 inTotal (curb) weight940 kg / 2072 lb / 2072 lb
Width1600 mm / 63.0 in / 63.0 inDry weight
Height1372 mm / 54.0 in / 54.0 inLoad capacity
Wheelbase2590 mm / 102.0 in / 102.0 inGross (max.) weight
Track front1372 mm / 54.0 in / 54.0 inTowing weight
Track rear1346 mm / 53.0 in / 53.0 inWeight distribution (front)
Ground clearanceFuel capacity
Length/wheelbase ratio1.65  

Aerodynamics

Drag coefficient (Cd, Cx, Cw)Frontal area (A)1.87 m2 / 20.1 sq ft / 20.1 sq ft (est.)
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 ManufacturerRileyValves per cylinder2
Engine constructionBore80.5 mm / 3.17 in / 3.17 in
Fuelpetrol (gasoline)Stroke120.0 mm / 4.72 in / 4.72 in
Fuel detailsBore/Stroke ratio0.67
Fuel supply2 SU carbsEngine displacement2443 cm3 / 149.1 cu in / 149.1 cu in
Engine Main bearingsUnitary capacity610.75 cm3/cylinder / 37.270 cu in/cylinder / 37.270 cu in/cylinder
Cam DesignOHV (overhead valve, I-head)Compression ratio6.9 : 1
SumpMax. output power77.6 kW / 104.1 hp / 104.1 hp at 4500 rpm / 4500 rpm / 4500 rpm
AspirationnaturalMax. torque179.0 N·m / 132.0 lb·ft / 132.0 lb·ft at 3000 rpm / 3000 rpm / 3000 rpm
Compressor typeN/AMaximum rpm
IntercoolernoMax. net output (power at the wheels)26.2 kW / 35.1 hp / 35.1 hp (est.)
CoolantwaterSpecific output31.8 kW/l / 0.698 bhp/cu in / 0.698 bhp/cu in
Catalytic converternoSpecific torque73.3 N·m/l / 0.64 lb·ft/cu in / 0.64 lb·ft/cu in

Transmission

Transmission typemanualNumber of gears4
Wheel driverear wheel driveTop gear (drive) ratio
  Final gear (drive) ratio3.5

Performance

Acceleration 0-50 mph (80 km/h)Top (maximal) speed182 km/h / 113 mph / 113 mph
Acceleration 0-60 mph (97 km/h)12.20 s / 12.20 s / 12.20 sPower-to-weight ratio110.6 kW/ton / 83.8 bhp/ton / 83.8 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 frontIndependent, Coil springs, Trailing armSuspension rearLive axle,TT, Coil springs
Wheels frontWheels rear
Tyres frontTyres rear
Brakes frontBrakes rear
Brake diameter frontBrake diameter rear
Brakes detailsBraked area

Technical specifications and performance data of Healey Silverstone

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