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Sunbeam Imp Sport

(1964 model)

Brief specs of 1964 Sunbeam Imp Sport

2-door 5-seater sedan (saloon), petrol (gasoline) 4-cylinder 8-valve straight (inline) engine, SOHC (single overhead camshaft), 875 cm3 / 53.4 cu in / 53.4 cu in, 38.0 kW / 51.0 hp / 51.0 hp @ 6100 rpm / 6100 rpm / 6100 rpm, 70.0 N·m / 51.6 lb·ft / 51.6 lb·ft @ 4300 rpm / 4300 rpm / 4300 rpm, manual 4-speed transmission, rear wheel drive

units: metric UK US

Basic (general) data

Marque (make)SunbeamIssued from1964
ModelImp SportIssued until
SerieImpNumber made
Model familyBody construction
Model codeBody designation
ManufacturerSunbeamCountryUK

Bodywork

Base platformNumber of doors2
Bodywork typesedan (saloon)Number of seats5
Bodywork designerCargo capacity (volume)
Passenger space (volume)Max. cargo capacity (volume)

Dimensions & Weight

Length3531 mm / 139.0 in / 139.0 inTotal (curb) weight747 kg / 1647 lb / 1647 lb
Width1530 mm / 60.2 in / 60.2 inDry weight
Height1384 mm / 54.5 in / 54.5 inLoad capacity
Wheelbase2083 mm / 82.0 in / 82.0 inGross (max.) weight
Track front1283 mm / 50.5 in / 50.5 inTowing weight
Track rear1219 mm / 48.0 in / 48.0 inWeight distribution (front)
Ground clearance140 mm / 5.5 in / 5.5 inFuel capacity27 l / 6.0 UK gal / 7.2 US gal
Length/wheelbase ratio1.7  

Aerodynamics

Drag coefficient (Cd, Cx, Cw)Frontal area (A)1.80 m2 / 19.4 sq ft / 19.4 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) (Inline, 4 cylinder)Total number of valves8
Engine ManufacturerHillmanValves per cylinder2
Engine constructionBore68.0 mm / 2.68 in / 2.68 in
Fuelpetrol (gasoline)Stroke60.4 mm / 2.38 in / 2.38 in
Fuel detailsBore/Stroke ratio1.13
Fuel supply2 St carbsEngine displacement875 cm3 / 53.4 cu in / 53.4 cu in
Engine Main bearingsUnitary capacity218.75 cm3/cylinder / 13.349 cu in/cylinder / 13.349 cu in/cylinder
Cam DesignSOHC (single overhead camshaft)Compression ratio10.0 : 1
SumpMax. output power38.0 kW / 51.0 hp / 51.0 hp at 6100 rpm / 6100 rpm / 6100 rpm
AspirationnaturalMax. torque70.0 N·m / 51.6 lb·ft / 51.6 lb·ft at 4300 rpm / 4300 rpm / 4300 rpm
Compressor typeN/AMaximum rpm
IntercoolernoMax. net output (power at the wheels)15.2 kW / 20.4 hp / 20.4 hp (est.)
CoolantwaterSpecific output43.4 kW/l / 0.954 bhp/cu in / 0.954 bhp/cu in
Catalytic converternoSpecific torque80.0 N·m/l / 0.70 lb·ft/cu in / 0.70 lb·ft/cu in

Transmission

Transmission typemanualNumber of gears4
Wheel driverear wheel driveTop gear (drive) ratio
  Final gear (drive) ratio4.86

Performance

Acceleration 0-50 mph (80 km/h)Top (maximal) speed
Acceleration 0-60 mph (97 km/h)Power-to-weight ratio68.3 kW/ton / 51.7 bhp/ton / 51.7 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 locationrearEngine alignmentlongitudinal
SteeringSteering details
Turns lock-to-lock2.5Turning circle9.3 m / 30.5 ft / 30.5 ft
Suspension frontIndependent, Coil springsSuspension rearIndependent, Coil springs
Wheels frontWheels rear
Tyres frontTyres rear
Brakes frontdrumBrakes reardrum
Brake diameter frontBrake diameter rear
Brakes detailsservo-assistedBraked area

Technical specifications and performance data of Sunbeam Imp Sport

Infobox

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