Vauxhall Viva GT (HB)
|Production||1968 to 1970|
|Engine||1975 cc I4|
|Top Speed||101 mph. 162.6 Km/h|
|Wheelbase||95.80 in. 2.433 mm|
|Length||101.10 in. 4.092 mm|
|Width||63 in. 1,600 mm|
|Height||53.30 in. 1.354 mm|
|Dry weight||1,993 1b, 904 kg|
The Viva GT, was a 2 door sports car announced in 1968 and sold by Vauxhall until 1970.
The GT was the Fastest of its model series HB set new standards for handling in its class as a result of the adoption of this suspension design, where many of its contemporaries stuck with leaf springs and Macpherson struts. The GT featured revised suspension settings to cope with the extra weight and power of the 112bhp unit, the basic Viva front suspension, comprising the familiar stiffened coil springs, wishbones and telescopic dampers, is stiffened by the addition of a front stabiliser, rubber mounted on the axle cross-member and link-bolted to the lower arms. for sharper handling with the distribution of weight 57% to front axle, and 43% at the rear axle. The car has decent brakes and the gearbox features close ratios on the MKI with synchromesh on all gears along with the uprated front and rear springs 4 link rear suspension, and shock absorbers and unlike Modern hot hatches its rear-wheel drive.The Viva GT replaces the rare Brabham. This model and the Viva GT are the two most sought-after models made.
Fitted with special Matt black bonnet with 2 air scoops, the front grill, also with the GT badging and on the rear wings and boot. A dual sportstripes black pin stripe along the side of the car. The comprehensive instrument package also included oil temperature and pressure gauges, a water temp dial and an ammeter rev counter and 120 mph speedo, along with all-black luxury interior. Leather covered alloy spoked steering wheel.
The GT Vauxhall Victor were also offered a naturally-aspirated Inline 4-cylinder engine Two litre, ohc engine Belt-driven, single overheadcamshaft. Cross flow head.
Individual ports. Fully machined combustion chambers. with twin Zenith 175-CD25 carbs 1975 cc in the Viva GT from Feb 1968. The 1,975cc four-cylinder unit was rated at 112 bhp.
- engine capacity: 120.51 cu in. 1.975 cu cm
- fuel consumption: 26.4-mile imp gallon
- max speed: 101 mph. 162.6 Km/h
- max power (SAE): 112 hp at 5,400 rpm
- max torque (SAE): 127 1b ft. 17.5 kg, 3.400 rpm
- max engine rpm: 6,200
- specific power: 56.7 hp/l
- acceleration: standing 1/4-mile 18.4 sec, 0—50 mph (0-80 km/h) 7.9 sec
- max speeds: 42 mph, 67.6 km/h in 1st gear; 60 mph, 96.6 kmh in 2nd gear; 78 mph, 125.0 km/h in 3rd gear; 101 mph, 162.6 km/h in 4th gear power-weight ratio: 17.6 lb/hp, 8 Kg/hp
The model hasd undergone some revisions since it was first introduced in 1968, by early 1970 Later GTs came in different colours with the updates came a split propeller shaft and ignition timing was also altered. These were basically versions of the GT, MKI and the later much rarer MK II version.
Aftermarket conversion specialists, Crayford, also ran off some convertibles based on the 2-door Viva.Few of these conversions exist still, only 2 GT model HBs were converted, but both are known to survive. In Total 4606 GTs were made.
Vauxhall Viva GT Technical details and specifications (1968-1970)
four stroke; cylinders: 4. vertical. in line
bore and stroke: 3.75 x 70.1 mm
engine capacity: 120.51 cu in, 1.975 cu cm
compression ratio; 8.5
cylinder block: cast iron
cylinder head: cast iron
hemispherical combustion chambers
crank. shaft bears: 5
valves: 2 per cylinder, overhead. in line rockers
camshafts: 1, overhead, cogged belt
iubracatton: gear pump, full flow filter
carburation: 2 Zenith 175-CD25 Venturi single barrel carburettors
fuel feed: mechanical pump
cooling system: water
driving wheels: rear
clutch: single dry plate (diaphragm);
gearbox: mechanical; gears: 4 + reverse
synchromesh gears: all
gearbox ratios: 1st 2.521, 2nd 1.765, 3rd 1.353, 4th 1, rev 2.773
gear lever location: central
final drive: hypoid bevel
axle ratio: 3.900
front suspension: independent, wishbones, coil springs. anti-roll bar. telescopic dampers
rear suspension: rigid axle, 2 trailing lower radius arms, 2 upper oblique torque arms, coil springs, telescopic dampers
turns ot steering wheel lock to lock: 3.40.
turning circle (between walls): 33.7 ft. 10.3 m
front disc (diameter 10.03 in, 255 mm)
rear drum, servo
area rubbed by linings: front 189 sq in. 1,219.05 sq cm
area rubbed by linings: rear 98 sq in, 632.10 sq cm
area rubbed by linings: total 287 sq in, 1.851.15 sq cm.
voltage: 12 v
battery: 38 Ah
generator type: alternator, 420 W
ignition distributor: Lucas
DIMENSIONS ANO WEIGHT
wheel base: 95.80 in. 2.433 mm
front track: 51 in. 1,295 mm
rear track: 51 in, 1.295 mm
overall length: 101.10 in. 4.092 mm
overall width; 63 in. 1,600 mm
overall height: 53.30 in. 1.354 mm
ground clearance: 5 in, 127 mm
dry weight: 1,993 1b, 904 kg
distribution of weight: 57% front axle, 43% rear axle
© Motor car History
Vauxhall Viva GT Maintenance and Service Guide (1968-1970)
Fuel type: 98 oct petrol
Engine oil change: 7.70 imp pt, 9,30 US pt. 4.4 1, SAE 20W-20, change every 6,000 miles, 9,700 km
Total lubricating system: 8.20 imp pt. 9.93 US pt
Cooling system capacity: 14 imp pt. 16.91 US pt Drain cooling system, remove radiator, disconnect top and bottom water hoses, also heater
hoses and vacuum servo unit hose.
Gearbox oil: 2.40 imp pt. 2.96 US pt 1.4 1, SAE 90, no change recommended
Final drive oil: 2.40 imp pt, 2.96 US pt. 1, SAE 90, no change recommended
Greasing: every 30,000 miles. 48,300 Km. 4 points
Tappet clearances: inlet 0.007-0.010 in, 0.18-0.25 mm. 0.015-0.018 in, 0.38-0.40 mm
Valve timing: inlet opens 33°26' before tdc and closes 65°26' after bdc, exhaust opens 65°26' before bdc and closes 33°26' after tdc
Normal tyre pressure: tront 24 psi, 1.7 atm, rear 24 psi. 1.7 atm.
Width of rims: 4"
Tyres: 155 x 13 (option)165 x 13
Fuel tank capacity: 12 imp gal, 14.5 US gal
Carrying capacity: 700 lb. 320 kg
© Motor car History
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