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Motor Cars
USA
1970s

Chevrolet Vega

Chevrolet Vega (1970-1977) history

Production period:

1970 to 1977

Class :

motor car

Body versions :

Coupé ,estate,van

Engines:

Gasoline : 2.0-2.3 liters 52-82 kW

Length:

4318-4455 mm

Width:

1661 mm

Height:

1270-1316 mm

Wheelbase :

2465 mm

Curb weight :

972-1168 kg

 

The Chevrolet Vega was offered by the American car manufacturer General Motors from 1970 to 1977.

History

In September 1970 Chevrolet presented the rear-wheel drive Vega as the first compact car of the brand. The Vega aimed at the customers of European and Japanese import cars and competed against Ford Pinto and AMC Gremlin .

Features of the Vega was the 2.3-liter, unusually designed four-cylinder engine with die-cast crankcase without linersMade of aluminum-silicon alloy and overhead camshaft in gray cast iron cylinder head. Initially, he ran very rough and consumed relatively much. Offered were a two-door notchback coupe, a three-door hatchback coupe with large tailgate and a three-door station wagon. In 1973, the output of the base engine of 81 hp (60 kW) was reduced to 73 hp (54 kW), at the same time a dual carburetor version was taken into the program, which made 86 hp (63 kW). For the 1974 model year, the car got a modified grille and much more robust, according to the recent US regulations applicable bumpers. In 1975, the engine output increased slightly, to 79/88 hp (58/65 kW). The following year, it was lowered to 71/85 hp (52 / 62.5 kW).

PERFORMANCE 2.3-liter

max torque (SAE): 136 1b ft, 18.7 kg m at 2,400 rpm
max engine rpm: 5,000
specific power: 39.2 hp/l
max speed: about 88 mph, 141 km/h
power-weight ratio: sedan 24.5 lb/hp, 11.4 kg;'hp —lb/hp, 11.3 kg/hp
speed in direct drive at 1,000 rpm: 20 mph, 32.2 km/h
fuel consumption: 21.6 m/ imp gal, 18 m/US gal, 13.1 1 x 100 km.

1975/76 was also offered after a long development time already announced in 1971 Vega Cosworth, a sports version of the hatchback coupe with constructed at Cosworth in England two-liter engine with shorter stroke, aluminum cylinder head and 16 valves, the 112 hp (82 kW) made. The sale of this variant was very sluggish, mainly due to the comparatively high price of $ 6066, twice that of a basic Vega; only 3507 pieces were built.

Chevrolet Vega (1970-1977) history

The innovative thing about the Vega was that it was designed to be transported vertically with the vehicle front down. As a result, more vehicles per area could be shipped on the trains. For example, the batteries had filler caps on the back to prevent leakage during transit. In addition, modifications were made to the engine (special oil baffles) and to the tank (for tank breather). This option was installed as "Vert-A-Pac" from the factory on the appropriate vehicles.

Furthermore, there was from 1970 to 1975 under the name Vega Panel Van a van variant of the station wagon without rear side windows. From this variant, about 22,000 pieces were produced.

Chevrolet Vega (1970-1977) history

OPTIONAL ACCESSORIES
Torque Drive semi-automatic gearbox with 2 ratios (I 1.820, II 1, rev 1.820), max ratio Of convertor at stall 2.40, 2.920 axle ratio; Powerglide automatic gearbox with 2 ratios (1 1.820, Il 1, rev 1.820), max ratio of convertor at stall 2.10, 2.920 axle ratio; 4-speed fully synchronized mechanical gearbox (j 3.430, Il 2.160.1.370. IV 1, rev 3.320), 2.920 axle ratio: limited slip final drive; power-assisted steering; anti-roll bar on front and rear suspensions; air-conditioning system.

Although electric in-tank gasoline pumps were previously used on some Cadillac and Buick models, the H-Platform (Vega and Monza) vehicles were GM's first large volume models with such gasoline pumps. Today, this is standard on all popular cars with intake manifold injection .fuel tank capacity: 9.2 imp gal, 11 US gal, 42 l.

In 1977, the production of Vega was stopped after a total of 1,955,769 copies. The station wagon was included in the program of the technically closely related to the Vega Chevrolet Monza .

Related items
Vehicles launched in 1970 | American 1970s | Cosworth

Technical

Technical
  • Technical details and specifications CHEVROLET Vega

    CHEVROLET Vega 2300 Series

    ENGINE
    front, 4 stroke
    cylinders: 4, in line
    bore and stroke: 3.50 x 3.62 in, 88.8 x 91.9 mm
    engine capacity: 140 cu in, 2,294 cu cm
    compression ratio: 8
    max power (SAE): 90 hp at 4,600-4,800 rpm
    cylinder block: light alloy
    cylinder head: light alloy
    crankshaft bearings: 5
    valves: 2 per cylinder, overhead, in line, push-rods and rockers
    camshafts: 1, overhead
    lubrication: gear pump, full flow filter
    lubricating system capacity: 6.7 imp pt, 8 US pt, 3.8 1
    carburation: 1 Rochester 7041023 downdraught single barrel carburettor
    fuel feed: electric pump
    cooling system: water
    cooling System capacity: 10.7 imp pt, 12.9 US pt, 6.1 1.

    TRANSMISSION
    driving wheels: rear
    clutch: single dry plate (diaphraom)
    gearbox: mechanical
    gears: 3 + reverse; synchromesh gears: 1, 3
    gearbox ratios: 1st 3.240, 2nd 1.680, 3rd rev 3.470
    axle ratio: 2.530
    width of rims: 5"; tyres: A78x 13.

     

    CHASSIS
    Type integral
    independent, wish-bones front suspension , coil springs, telescopic dampers
    rear suspension: rigid axle, lower trailing radius arms, upper torque arms,
    coil springs, telescopic dampers.

    STEERING
    recirculating ball
    turns of steering wheel lock to lock: 4.40,

    BRAKES
    front disc, rear drum, dual circuit

    ELECTRICAL EQUIPMENT
    voltqge: 12 V
    battery: 45 Ah
    generator type: alternator, 32 A
    ignition distributor: Delco Remy

    DIMENSIONS AND WEIGHT
    wheel base: 97 in, 2,464 mm
    front track: 55.40 in, 1,399 mm
    rear track: 54.10 in, 1,374 mm
    overall length: 169.70 in, 4,310 mm
    overall width: 65.40 in, 1,661 mm
    overall height; sedan 51.90 in, 1,318 mm station wagon 52 in, c1,321 mm;oupé 50 in, 1 ,270 mm
    ground clearance: 4.50 in, 144 mm
    dry weight: Vega 2300 2-door Sedan 2,202 1b, 998 kg — vega 2300 2-door Vega 2300 Station Wagon 2,286
    Coupé 2,246 1b 1,037 kg
    turning circle (between walls): 34.7 ft, 10.6 m

    © Motor car History

    -Note: Chevrolet Vega Advanced Maintenance and Repair Manuals available for registered users-

Manuals

Download: Workshop manuals Tech Guides exclusive to registered users.

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