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Chevrolet Diplomata Automatic

(1979 model)

Brief specs of 1979 Chevrolet Diplomata Automatic

4-door 5-seater sedan (saloon), petrol (gasoline) 6-cylinder 12-valve straight (inline) engine, OHV (overhead valve, I-head), 4093 cm3 / 249.8 cu in / 249.8 cu in, 85.0 kW / 114.0 hp / 114.0 hp @ 4200 rpm / 4200 rpm / 4200 rpm, 260.0 N·m / 191.8 lb·ft / 191.8 lb·ft @ 2200 rpm / 2200 rpm / 2200 rpm, automatic 3-speed transmission, rear wheel drive

units: metric UK US

Basic (general) data

Marque (make)ChevroletIssued from1979
ModelDiplomata AutomaticIssued until
SerieDiplomataNumber made
Model familyBody construction
Model codeBody designation
ManufacturerGeneral Motor CompanyCountryUS,BR,KR,ZA

Bodywork

Base platformNumber of doors4
Bodywork typesedan (saloon)Number of seats5
Bodywork designerCargo capacity (volume)
Passenger space (volume)Max. cargo capacity (volume)

Dimensions & Weight

Length4740 mm / 186.6 in / 186.6 inTotal (curb) weight
Width1770 mm / 69.7 in / 69.7 inDry weight
Height1390 mm / 54.7 in / 54.7 inLoad capacity
Wheelbase2670 mm / 105.1 in / 105.1 inGross (max.) weight
Track front1430 mm / 56.3 in / 56.3 inTowing weight
Track rear1410 mm / 55.5 in / 55.5 inWeight distribution (front)
Ground clearance180 mm / 7.1 in / 7.1 inFuel capacity65 l / 14.3 UK gal / 17.2 US gal
Length/wheelbase ratio1.78  

Aerodynamics

Drag coefficient (Cd, Cx, Cw)Frontal area (A)2.09 m2 / 22.5 sq ft / 22.5 sq ft (est.)
Aerodynamic coefficient (Cd×A)Aerodynamic resistance (Aero horse power) at 100 km/h (62 mph)

Engine

Engine CodeGMB 250Total number of cylinders6
Engine Typestraight (inline) Total number of valves12
Engine ManufacturerGMValves per cylinder2
Engine constructionBore98.4 mm / 3.87 in / 3.87 in
Fuelpetrol (gasoline)Stroke89.7 mm / 3.53 in / 3.53 in
Fuel detailsBore/Stroke ratio1.1
Fuel supply1 Wecarbras carbEngine displacement4093 cm3 / 249.8 cu in / 249.8 cu in
Engine Main bearings7Unitary capacity682.17 cm3/cylinder / 41.629 cu in/cylinder / 41.629 cu in/cylinder
Cam DesignOHV (overhead valve, I-head)Compression ratio7.5 : 1
SumpMax. output power85.0 kW / 114.0 hp / 114.0 hp at 4200 rpm / 4200 rpm / 4200 rpm
AspirationnaturalMax. torque260.0 N·m / 191.8 lb·ft / 191.8 lb·ft at 2200 rpm / 2200 rpm / 2200 rpm
Compressor typeN/AMaximum rpm
IntercoolernoMax. net output (power at the wheels)34.0 kW / 45.6 hp / 45.6 hp (est.)
CoolantwaterSpecific output20.8 kW/l / 0.456 bhp/cu in / 0.456 bhp/cu in
Catalytic converternoSpecific torque63.5 N·m/l / 0.56 lb·ft/cu in / 0.56 lb·ft/cu in

Transmission

Transmission typeautomaticNumber of gears3
Wheel driverear wheel driveTop gear (drive) ratio1
  Final gear (drive) ratio3.08

Performance

Acceleration 0-50 mph (80 km/h)Top (maximal) speed
Acceleration 0-60 mph (97 km/h)Power-to-weight ratio
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
Steeringworm & rollerSteering details
Turns lock-to-lock3.75Turning circle11.3 m / 37.1 ft / 37.1 ft
Suspension frontIndependent, Wishbone (A-arm, control arm), Coil springs, Anti-roll (anti-sway) bar (ARB)Suspension rearLive axle, Torsion bar, LinksBar, Coil springs, Anti-roll (anti-sway) bar (ARB)
Wheels frontWheels rear
Tyres front195/70 SR 14Tyres rear195/70 SR 14
Brakes frontventilated discBrakes reardrum
Brake diameter frontBrake diameter rear
Brakes detailsservo-assistedBraked area

Technical specifications and performance data of Chevrolet Diplomata Automatic

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