V8 Vantage (V580X)

V8 Vantage (V580X) Description

In production: January 1986 – September 1989

Chassis numbers: 12507 to 12701

The introduction of Weber electronic fuel injection across the V8 range in January 1986 was not adopted by the Vantage as the current technology was unable to deliver the power expected of the flagship of the range. Vantages continued to happily breathe through their four twin-choke, down draught 48 IDF Weber carburettors and from early 1986, the more powerful engine from the Zagato began to be installed into the regular bodyshell. The 410-420 bhp V580X engine, with suffix /X, for eXtra performance, was initially developed for use at the higher altitudes of South Africa and further developed for the limited edition Zagato. A few months later, at the 1986 British International Motor Show, was the premiere of a Vantage with the combination of V580X engine, larger diameter wheels and subtlety revised coachwork, the swansong of the Vantage; a derivative that we now know as the ‘X-pack’. The show car, chassis 12528 was the example with the larger 16 inch wheels, variable rate springs with re-calibrated Koni shock absorbers and wider wheel arches that extended around the car. The wheels that were initially fitted, Compomotive three-piece alloys, were subsequently found less than suitable as they had a habit of splitting after hitting kerbs. These were replaced initially with OZ Ceres, then MSW and finally by Ronal light alloy wheels all with Goodyear 255/50 ZR 16 Eagle tyres.

Whilst the ZF five-speed manual transmission was the default choice for the enthusiastic driver, the automatic TorqueFlite became an official, certified, option for the first time in late 1987. Fifteen automatic ‘X-packs’ were built, the earliest being 12587 and such cars had engine numbers with the suffix /XA.

Some even more powerful engines were built, a further development of the X-pack with carburettors carefully modified to 50 mm, larger 4 inch diameter air trunking, deleted air pumps and larger diameter exhausts. These engines, known as 'big bore', were able produce 432 bhp at 6000 rpm and 395 lb.ft torque at 5000 rpm.

During three and a half years of production starting with chassis number 12507, 131 full specification ‘X-packs’ were built and sold made up of 95 right hand drive for the UK and 36 left hand drive for mainland Europe and the Middle East. There were also six cars built to V585 ‘cosmetic’ specification, outwardly the same as the ‘X-packs’ but with the Federal specification V585 efi engine. Five of the ‘cosmetics’ were sold in Japan and a single car in the USA. The single US car and also cars supplied to customers in Saudi Arabia were fitted with the 5 mph impact bumpers.

V8 Vantage (V580X) Specification

Body / Coachwork
Two-door 2+2 coupe
Steel platform chassis with handcrafted aluminium alloy body panels
Dual 7'' quartz-halogen headlamps with additional Cibie 7'' driving lights in blanked off grille. Mesh grille optional or standard in hot climates
Front airdam and integral 'tea-tray' rear spoiler
Interior
Full leather Connolly interior
Air-conditioning system
Adjustable seats with tilting squabs to allow access to the rear seats
Burr Walnut facia and cappings optional
Wilton wool pile carpets
Blaupunkt Toronto SQR46 or 48 stereo radio cassette, four speakers and electric aerial
Engine
Front-mounted all-alloy 90° V8, 5,340 cc, two valves per cylinder, twin overhead camshafts per bank. Engine number prefix V580/, suffix /X or /XA (automatic)
Bore 100 mm. Stroke 85 mm. Compression ratio 10.2:1
Four Weber 48 IDF3/150 downdraught carburettors
Fuel supplied by electric twin SU single unit
Maximum power: 410 bhp @ 6,000 rpm, (432 bhp @ 6,250 rpm with 50 mm chokes, big bore airbox and exhausts)
Maximum torque: 395 lb.ft @ 5,100 rpm
Air injection system: twin AC Delco air pumps
Ignition system: Lucas 35 DLM8 electronic
Cosmetic Vantage built with Emission Control V585/LFM spec engines
Transmission
Manual: five-speed ZF. Hydraulically-operated 10½" Borg and Beck single dry-plate diaphragm clutch
Automatic: Chrysler TorqueFlite three-speed automatic optional
Final drive: Salisbury hypoid bevel with Powr-Lok limited slip differential
Final drive ratio: 3.54:1 (manual and North America specification), 3.058:1 (automatic)
Steering
Power-assisted Adwest rack and pinion 2.9 turns lock to lock. Turning circle 11.58 metres
Wheels and Tyres
Bolt-on, 5-stud, 16 x 8J light alloy wheels. Initially Compomotive, MSW, OZ Ceres and lastly Ronal
Goodyear Eagle 255/50VR 16
Space saver spare wheel T115/85R18 with some later cars
Suspension
Front: independent, featuring unequal transverse wishbones, coil springs and co-axial telescopic shock absorbers with an anti-roll bar
Rear: De-Dion tube, Watts linkage and trailing links incorporating uprated Koni co-axial spring shock absorber units
Brakes
Front: ventilated steel discs, 267 mm (10.51") diameter
Rear: ventilated steel discs, 264 mm (10.39") diameter mounted inboard
Tandem master cylinders and dual vacuum servo assistance
Dimensions
Length: 4,670 mm (4,780 mm with 5 mph impact bumpers)
Width: 1,892 mm
Height: 1,370 mm
Kerb weight: 1,818 kg (1,860 kg Cosmetic with 5 mph impact bumpers)
Wheelbase: 2,610 mm
Front track: 1,554 mm
Rear track: 1,586 mm
Fuel tank capacity: 104.6 litres
Cd: 0.36
Performance
Maximum speed: 168 mph
Acceleration: 0-60 mph 5.2 seconds
Prices (including UK purchase tax/VAT and car tax where applicable)
October 1986: £63,500 ($125,000 USA)
March 1987: £70,000
October 1987: £75,000 ($143,000 USA)
March 1988: £79,500 ($158,000 USA)
September 1988: £87,000 ($158,000 USA)
February 1988: £100,000
August 1989: £110,000

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