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MG MGB

The MGB is a two-door sports car manufactured and marketed from 1962 until 1980 by the British Motor Corporation (BMC), later the Austin-Morris division of British Leyland, as a four-cylinder, soft-top sports car. It was announced and its details first published on 19 September 1962.[5] Variants include the MGB GT three-door 2+2 coupé (1965–1980), the six-cylinder sports car and coupé MGC (1967–69), and the eight-cylinder 2+2 coupé, the MGB GT V8 (1973–76).

MG MGB
1969 MGB roadster – rollover bar non-standard
Overview
ManufacturerBritish Motor Corporation (1963–1968)
British Leyland (1968–1980)
Rover Group (1993–1995)
Production1962–1980 (original)
514,852 produced[1]
1992–1995 (MG RV8) 1,999 produced[2]
AssemblyAbingdon, England
Enfield, Australia[3]
Zetland, Australia[4]
Longbridge, England (MG RV8)
Body and chassis
ClassSports car
LayoutFR layout
Chronology
PredecessorMGA
SuccessorMG F

Replacing the MGA in 1962, production of the MGB and its variants continued until 1980, though fixed roof GT models ceased export to the US in 1974. Sales for the MGB, MGC and MGB GT V8 combined totaled 523,836 cars. After a 12-year hiatus, the MGB re-entered production as the heavily modified MG RV8 with a limited run of 2,000 cars before finally being replaced in 1995 by the MG F.

History edit

Development of the MGB started at least as early as 1958 with the prototype known by its Abingdon codename; MG EX205.[6] In structure the car was a progressive, modern design in 1962, using a unitary structure, instead of the traditional body-on-frame construction used on both the MGA and MG T-types and the MGB's rival, the Triumph TR series.[7] However, components such as brakes and suspension were developments of the earlier 1955 MGA, with the B-Series engine having its origins in 1947. The lightweight design reduced manufacturing costs while adding to overall vehicle strength. Wind-up windows were standard, and a comfortable driver's compartment offered plenty of legroom. A parcel shelf was fitted behind the seats.

The MGB achieved a 0–60 mph (97 km/h) time of just over 11 seconds. The three-bearing 1,798 cc B-Series engine produced 95 hp (71 kW) at 5,400 rpm – upgraded in October 1964 to a five-bearing crankshaft. From 1975, US-market MGB engines were de-tuned to meet emission standards, ride height was increased by an inch (25 mm), and distinctive rubber bumpers were fitted to meet bumper standards.

The MGB was one of the first cars to feature controlled crumple zones designed to protect the driver and passenger in a 30 mph (48 km/h) impact with an immovable barrier (200 ton).[8][9] Nevertheless, the British AA motoring association has described the car, like many other classic models, as much less safe than modern cars. The issue received public attention following a 2013 case in which a driver in a hired 1963 MGB was killed in a collision with a taxi.[10]

A limited production of 2,000 units of the RV8 was produced by Rover in the 1990s. Despite the similarity in appearance to the roadster, the RV8 had less than 5% parts interchangeability with the original car.[citation needed]

The MGB remains a popular choice for collectors due to inexpensive and readily available parts and simple mechanics.

Drivetrain edit

 
A sectioned MGB showing engine and gearbox configuration

All MGBs (except the V8 version) used the BMC B-Series engine. This engine was essentially an enlarged version of that used in the MGA with engine displacement being increased from 1,622 to 1,798 cc. The earlier cars used a three-main-bearing crankshaft, 18G-series. In February 1964 positive crank-case breathing was introduced and the engine prefix changed to 18GA, until October 1964, when a five-bearing crankshaft design was introduced, the engine prefix became 18GB. Horsepower was rated at 95 net bhp on both five-main-bearing and earlier three-bearing cars with peak power coming at 5,400 rpm with a 6,000 rpm redline. Torque output on the MGB had a peak of 110 lb⋅ft (150 N⋅m) and fuel consumption was around 25 mpg.[11] US specification cars saw power fall in 1968 with the introduction of emission standards and the use of air or smog pumps. In 1971 UK spec cars still had 95 bhp (71 kW) at 5,500 rpm, with 105 lb⋅ft (142 N⋅m) torque at 2,500 rpm. Engine prefixes became 18V and the SU carburettor needles were changed for reasons of the latest emission regulations, under ECE15. By 1973 it was 94 bhp (70 kW); by 1974 it was 87, with 103 lb⋅ft (140 N⋅m) torque; by 1975 it was 85 with 100 lb⋅ft (140 N⋅m). Some California specification cars produced only around 70 hp (52 kW) by the late 1970s. The compression ratio was also reduced from 9:1 to 8:1 on US spec cars in 1972.

All MGBs from 1963 to 1974 used twin 1.5-inch (38 mm) SU carburettors. US spec cars from 1975 used a single Stromberg 1.75-inch (44 mm) carburettor mounted on a combination intake–exhaust manifold. This greatly reduced power as well as created longevity problems as the (adjacent) catalytic converter tended to crack the intake–exhaust manifold. All MGBs used an SU-built electric fuel pump.

All MGBs from 1962 to 1967 used a four-speed manual gearbox with a non-synchromesh, spur cut first gear. Optional overdrive[12] was available. This gearbox was based on that used in the MGA with some minor upgrades to cope with the additional output of the larger MGB engine. In 1968 the early gearbox was replaced by a full synchromesh unit based on the MGC gearbox. This unit was designed to handle the 150net bhp of the three-litre engine of the MGC and was thus over-engineered when mated with the standard MGB B-Series engine. The same transmission was used in the 3.5-litre V8 version of the MGB-GT-V8. An automatic three-speed transmission was also offered as a factory option, but was unpopular.[citation needed]

Electrically engaged overdrive gearboxes were an available option on all MGBs. The overdrive unit was operational in third and fourth gears (until 1977, when overdrive was only operational in fourth)[13] but the overall ratio in third gear overdrive was roughly the same as fourth gear direct. The overdrive unit was engaged by a toggle switch on the dashboard or by pulling the wiper lever towards the driver, model dependent. The switch was moved to the top of the gearshift knob in 1977.[13] Overdrives were fitted to less than 20% of all MGBs.

There were three different types of overdrive transmissions fitted to the MGB.

1962–64, 1965–67

  • Laycock Type D OD (note external solenoid)
  • A hole in the bell housing where the starter nose poked through
  • "Shield" shaped access cover
  • 1020 TPM for OD and 1040 TPM for non-OD

The gearbox input shaft, flywheel and engine backing plate were changed with the advent of the five-main-bearing engine in 1965. Therefore, the transmission for a three-main-bearing engine (1962–1964) differed from its later counterpart.[13]

1968 to 1974.5

  • Laycock Type LH OD
  • Rectangular shaped access cover
  • Oval clutch fork boot
  • Dipstick (for checking oil)
  • Black label on the OD solenoid cover stamped "22/61972"
  • 1280 TPM for OD and non-OD
  • Speedometer drive gear (on the mainshaft) was blue
  • Speedometer driven gear (on removable drive housing) was white with 21 teeth

[13]

1974.5 to 1980

  • Laycock Type LH OD
  • Rectangular shaped access cover
  • Square clutch fork boot
  • Side fill plug (no dipstick)
  • Blue label on the OD solenoid cover stamped "22/6/2005"
  • 1000 TPM for OD and non-OD
  • Speedometer drive gear (on the mainshaft) was red
  • Speedometer driven gear (on removable drive housing) was red with 20 teeth

Overdrive operated in fourth gear only in units made from February 1977 onward.[13]

 
A sectioned MGB showing the rear axle and differential

Early MGBs used the "banjo" type differential carried over from the MGA with the rear axle ratio reduced from the MGA's 4.1 (or 4.3) to 3.9 to 1. (Compensating for the reduction from 15 inch to 14-inch (360 mm) wheels). MGB GTs first began using a tube-type rear axle in 1967. This unit was substantially stronger, being, like the later gearbox, designed for the three-litre MGC. All MGBs used the tube-type axle from 1968.

All MGBs were fitted with 11-inch (280 mm) solid (non-ventilated) disc brakes on the front with drum brakes on the rear. The front brake calipers were manufactured by Lockheed and used two pistons per caliper. The brake system on the MGB GT was the same as the roadster with the exception of slightly larger rear brake cylinders. A single-circuit hydraulic system was used before 1968 when dual-circuit (separate front and rear systems) were installed on all MGBs to comply with US regulations. Servo assistance (power brakes) was not standard until 1975. Many modern and contemporary testers have commented on the very heavy brake pedal pressure needed to stop the non-servo-assisted cars.[citation needed]

The MGB initially had an extremely simple electrical system. Dash-mounted toggle switches controlled the lights, ventilation fan, and wipers with only the direction indicators being mounted on a stalk on the steering column. The ignition switch was also mounted on the dash. Like the MGA, the MGB used two 6-volt batteries wired in series to give a 12-volt positive earth configuration. The batteries were placed under a scuttle panel behind the seats making access difficult; the location gave excellent weight distribution and thus improved handling. The charging system used a Lucas dynamo. Later MGBs had considerable changes to the electrical system including the use of a single 12-volt battery, a change from positive to negative earth, safety-type toggle (rocker) switches, alternator in lieu of dynamo, additional warning lights and buzzers, and most common functions moved to steering column stalks.

From 1972 there were two different Pirelli Cinturato radial tyre sizes factory-fitted to new cars, depending on whether the car was a roadster,(155/80x14) or a GT,(165/80x14).The original tyres for the majority of MGBs were 165HR14 Pirelli Cinturato.[14] With the 1974.5 arrival of the rubber bumper cars the factory-fitted tyre size was simplified to 165/80x14 for all cars, irrespective of whether the car was a roadster or a GT, and also irrespective of the wheel type (wire or RoStyle). The factory built V8s were fitted with alloy wheels and full profile 175HR14 tyres. The "Jubilee" model, made to celebrate the 50th anniversary of the company in 1975 had the alloy wheels from the V8, allegedly because the V8 was not selling and they had a large stock.[citation needed] With a pre-war British racing green colour, tinted glass, gold body stipes and other gold trim 751 Jubilees were made. One was destroyed in an advertising stunt that went wrong. There are thought to be about half of them left as of 2021.[15] The final 1,000 LE models were the last cars to leave the factory with alloy wheels.

Roadster edit

MGB roadster
 
1963 MG B roadster
Overview
Production1962–1980
Body and chassis
Body style2-door roadster
Powertrain
Engine1.8 L B-Series I4
Transmission
Dimensions
Wheelbase2,312 mm (91.0 in)[16]
Length
  • 3,886 mm (153.0 in)
  • 4,019 mm (158.2 in) (rubber bumper version)[17]
Width1,524 mm (60.0 in)[17]
Height
  • 1,219 mm (48.0 in)
  • 1,295 mm (51.0 in) (rubber bumper version)[17]
 
Early 1974 MGB (US model)
 
Rear of a late "black bumper special" MGB, showing changes introduced in 1974 to meet new US regulations.

The roadster was the first of the MGB range to be produced. The body was a pure two-seater; a small rear seat was a rare option at one point. The MGB offered better space utilisation to passengers and luggage than the preceding MG A, despite being both 3 in (7.6 cm) shorter in wheelbase and overall length, and 2 in (5.1 cm) lower. Growing in width by the same, gave the MGB a distinctly lower and more squat stance than its forebear. The suspension was softer, giving a smoother ride,[citation needed] and the larger engine gave a slightly higher top speed. The four-speed gearbox was an uprated version of the one used in the MGA with an optional (electrically activated) overdrive transmission. Wheel diameter dropped from 15 to 14 in (36 cm).

In late 1967, enough changes were introduced for MG to declare the 1968 model year a Mark II model.[18] Changes included new gearboxes with revised ratios and synchromesh on all four gears, an optional Borg-Warner 35 automatic gearbox (except in the US, peculiarly), a new rear axle, and an alternator in place of the dynamo with a change to a negative earth system. The Mk II's new gearboxes required significantly altered floorpan sheet metal with a new, flat-topped transmission tunnel.

To meet US safety regulations for the 1968 model year, the MGB received a plastic and foam rubber covered "safety" dashboard, dubbed the "Abingdon pillow", and dual circuit brakes. Other markets continued with the steel dashboard. Rubery Owen RoStyle wheels were introduced to replace the previous pressed steel versions in 1969 and reclining seats were standardised.[citation needed]

1969 also saw three windscreen wipers instead of two to sweep the required percentage of the glass (US market only), high seat backs with head restraints and side marker lamps. The next year saw a new front grille, recessed, in black aluminium. The more traditional-looking polished grille returned in 1973 with a black "honeycomb" insert. In North America, 1970 saw split rear bumpers with the number-plate in between, 1971-1974 returned to the earlier single-piece full-length style chrome bumper.[citation needed]

Further changes in 1972 were to the interior with a new fascia.

To meet impact regulations, 1974 US models had the chrome bumper over-riders replaced with oversized rubber ones, nicknamed "Sabrinas" after the British actress Sabrina. In the second half of 1974 the chrome bumpers were replaced altogether. A new, steel-reinforced black rubber bumper at the front incorporated the grille area as well, giving a major restyling to the B's nose, and a matching rear bumper completed the change.

New US headlight height regulations also meant that the headlamps were too low. Rather than redesign the front of the car, British Leyland raised the car's suspension by 1-inch (25 mm). This, in combination with the new, far heavier bumpers, resulted in significantly poorer handling. For the 1975 model year only, the front anti-roll bar was deleted as a cost-saving measure (though still available as an option). The damage done by the British Leyland response to US legislation was partially alleviated by revisions to the suspension geometry in 1977, when a rear anti-roll bar was made standard equipment on all models. US emissions regulations also reduced horsepower.

In March 1979 British Leyland started the production of black painted limited edition MGB roadsters for the US market, meant for a total of 500 examples. Due to a high demand for the limited edition model, production ended with 6,682 examples. The UK received bronze-painted roadsters and a silver GT model limited edition. The production run of homemarket limited edition MGBs was split between 421 roadsters and 579 GTs.

The last MGB roadster produced at Abingdon returned to Abingdon County Hall Museum on 1 December 2011, with the help of British Motor Heritage.[19] It was lifted up 30 feet through a first floor window of the Grade I listed building with inches to spare[20] and now forms part of the collection on display in the main gallery.[21]

Work on a successor for the MGB had been undertaken as early as 1964 with the EX234, but due to the excellent sales of the MGB and MG Midget, BMC cancelled it in 1966.[22] In 1968 a second proposed replacement was developed, the ADO76, but British Leyland had ceased work on that project by the end of 1970; the ADO76 would ultimately become the rubber-bumper version of the MGB in 1974.[23] A third MGB replacement was developed in 1969, this time with a mid-mounted BMC E-series engine, semi-independent Hydrolastic suspension and Ferrari-like styling. This was cancelled in 1970 in favour of the more-conventional Triumph Bullet, which later became the TR7.[24] When the Abingdon factory finally closed in late 1980, British Leyland did not replace it, with the EX234 prototype finally being sold at auction in 2016.

The decision to discontinue the MGB came about largely due to the poor sales performance of the Triumph TR7, which had largely taken over as BL's contemporary offering in the small sports car market. BL management felt that continued production of the MGB was cannibalising the TR7's sales and this therefore was a justification for taking it off the market. However the TR7 failed to sell and was axed a year later. The MG marque was subsequently used to badge engineer sports versions of the Austin Metro, Austin Maestro and Austin Montego throughout the 1980s, prior to the re-emergence of the MGB in late 1992 as the MG RV8.

GT edit

MGB GT
 
Overview
Production1965–1980
DesignerPininfarina
Body and chassis
Body style2-door hatchback coupé
Powertrain
Engine1.8 L B-Series I4
Dimensions
Wheelbase2,312 mm (91.0 in)[16]
Length
  • 3,886 mm (153.0 in)
  • 4,019 mm (158.2 in) rubber bumper version[17]
Width1,524 mm (60.0 in)[17]
Height
  • 1,238 mm (48.7 in)
  • 1,295 mm (51.0 in) rubber bumper version[17]

The fixed-roof MGB GT was introduced in October 1965. Production continued until 1980, although export to the US ceased in 1974. The MGB GT sported a ground-breaking greenhouse designed by Pininfarina and launched the sporty "hatchback" style. By combining the sloping rear window with the rear deck lid, the B GT offered the utility of a station wagon while retaining the style and shape of a coupe. This new configuration was a 2+2 design with a right-angled rear bench seat and far more luggage space than in the roadster. Relatively few components differed, although the MGB GT did receive different suspension springs and anti-roll bars and a different windscreen which was more easily and inexpensively serviceable. In 2019, Road & Track named the GT one of the "16 of Pininfarina's Most Beautiful Designs That Aren't Ferraris."[25]

Although acceleration of the GT was slightly slower than that of the roadster, owing to its increased weight, top speed improved by 5 mph (8.0 km/h) to 105 mph (169 km/h) because of better aerodynamics.

A special edition of the GT was produced in 1975 for the 50th Anniversary of the MG Car Company. It was in pre-war British Racing Green, had tinted glass, gold body stripes, V8 alloy wheels painted in gold and black, and other gold trim. 751 Jubilees were made, one of which was destroyed in an advertising stunt that went wrong. There are thought to be about half of them left as of 2021.

The MGB Berlinette produced by the Belgian coach builder Jacques Coune used a raised windscreen to accommodate the fastback. Fifty-six were produced.[26]

MGC edit

MGC & MGC GT
 
MGC GT
Overview
Production1967–1969
Body and chassis
Body style
  • 2-door roadster
  • 2-door coupe
Powertrain
Engine2.9 L C-Series I6
Chronology
PredecessorAustin-Healey 3000
 
1968 MGC GT

The MGC was a 2,912 cc, straight-six version of the MGB sold from 1967 and produced until August 1969[27] with some sales running on into 1970. The car was given the model code ADO52. It was intended as a replacement for the Austin-Healey 3000 Mk. III which would have been ADO51 but in that form never got beyond the design proposal stage. The first engine to be considered was an Australian-designed six-cylinder version of the BMC B-Series but the production versions used a new seven-main-bearing development of the Morris Engines designed C-Series that was also to be used for the new Austin 3-litre four-door saloon. In the twin SU carburettor form used in the MGC the engine produced 145 bhp (108 kW) at 5,250 rpm.[28] The body shell needed considerable revisions around the engine bay and to the floor pan, but externally the only differences were a distinctive bonnet bulge to accommodate the relocated radiator and a teardrop for carburettor clearance. It had different brakes from the MGB, 15 inch wheels with Pirelli Cinturato 165HR15 tyres (CA67).[29] a lower geared rack and pinion and special torsion bar suspension with telescopic dampers. Like the MGB, it was available as a coupé (GT) and roadster. An overdrive gearbox or three-speed automatic gearbox were available as options. The car was capable of 120 mph (193 km/h) and a 0–60 mph time of 10.0 seconds.[28]

The heavy engine (209 lb heavier than the 1,798 cc MGB engine) and new suspension changed the vehicle's handling, and it received a mixed response in the automotive press. It later transpired that the BMC press department had set the tyre pressures of the cars in the launch fleet incorrectly (to the same values as the standard MGB) and that even the correct pressures were insufficient to get the best handling from the car.

The MGC was cancelled in 1969 after less than two years of production.

At the time of the car's launch the manufacturers stated that the Austin-Healey 3000 would continue to be offered as a parallel model priced on the domestic market at £1,126, compared to the MGC's £1,102.[30]

 
1969 MGC engine bay with correct engine colour, brake servos, and original US emissions.

In 1967 Prince Charles took delivery of an MGC GT (SGY 766F), which he passed down to Prince William 30 years later.[31]

 
MGC roadster (1969 US specification)

MGB GT V8 edit

MGB GT V8
 
MGB GT V8
Overview
Production1973–1976
Body and chassis
Body style2-door coupe
Powertrain
Engine3.5 L Rover V8

MG began offering the MGB GT V8 in 1973 powered by the aluminium block/aluminium head 3,532 cc Rover V8 engine, first fitted to the Rover P5B. The V8's 137 hp (102 kW) and 193 lb⋅ft (262 N⋅m) of torque allowed it to reach 60 mph (97 km/h) in 7.7 seconds and go on to a 125 mph (201 km/h) top speed. Fuel consumption was just under 20 mpg.[32]

By virtue of its aluminium cylinder block and heads, the Rover V8 engine weighed approximately 20 kilos less than MG's iron four-cylinder. Unlike the MGC, the V8 that provided the MGB GT V8's increased power and torque did not require significant chassis changes nor sacrifice handling.

Both chrome and rubber-bumpered GT versions of the V8-powered MGB were produced by the factory with production ending in 1976. MG never attempted to export the MGB GT V8 to the United States. It chose not to even develop a left-hand-drive version of the MGB GT V8, although the Rover V8 engine had been offered in certain US-bound Rover models. The P6 3500, however, was withdrawn from the US after 1971 and the Rover 3500 SD1 only introduced in 1980 (its engine equipped with power-sapping emissions equipment) so that during the lifetime of the MGB GT V8 the engine was not being built in a federal version. Abingdon built seven LHD examples, sent them to America to achieve certification, and brought them back to the UK to be sold to mainland European countries.[33][better source needed]

MG RV8 edit

MG RV8
 
MG RV8
Overview
Production1992–1995
Body and chassis
Body style2-seat roadster
Powertrain
Engine3.9 L Rover V8

Subsequent to the launch of the Mazda MX-5 in 1989, British Motor Heritage (by then owned by Rover Group) had placed the MGB bodyshell back in production to serve the MGB restoration market. The success of the MX-5 had given Rover confidence that the market for 2 seater roadsters had re-emerged, and the decision was taken in 1991 to create an updated MGB model. The suspension was only slightly updated, sharing the leaf spring rear of the MGB. The boot lid and doors were shared with the original car, as were the rear drum brakes. The engine was the 3.9-litre version of the aluminium Rover V8, similar to the one previously used in the MGB GT V8. A limited-slip differential was also fitted. The MG RV8 debuted at the British International Motor Show in October 1992.[citation needed]

The British Motor Heritage manufactured bodyshell was painted at Rover's Cowley plant before final assembly at Cowley where the cars were hand-built in a separate unit, the LVA . The interior featured veneered burr elm woodwork and Connolly leather.[34]

The engine produced 190 bhp (142 kW) at 4,750 rpm, achieving 0–60 mph (96 km/h) in 5.9 seconds. Largely due to the rear drum brakes and rear leaf springs, the RV8 was not popular with road testers.[citation needed] The high price of the car put it in direct competition with contemporary rivals from specialist manufacturers such as TVR which offered modern technology and a more up to date driving experience.

A large proportion of the limited MG RV8 production went to Japan – 1,579 of the 1,983 produced.[35] In the UK, 330 RV8s were sold initially.[36] Several hundred (possibly as many as 700) of these cars were reimported back to the UK and also Australia between 2000 and 2010, with a peak number of 485 registered at the DVLA in the UK.[37] Several observers consider the RV8 a continuation of the MGB model.[38][39][40][41][42]

No left hand drive examples were produced.

Australian assembly edit

The MGB was assembled in Australia from 1963 to 1972,[43] during which time approximately 9,000 were sold.[44] The cars were assembled from complete knock down kits shipped from England.[44] Initially, assembly was undertaken by the Pressed Metal Corporation at its Enfield facility, but was subsequently moved to BMC Australia’s Zetland plant in 1968.[3] Australian assembly ended in 1972 when the government issued a requirement that, to enjoy favourable tariff treatment, locally produced cars should feature 85% local content.[44] At the time, the local content of the Australian assembled MGBs was evaluated as just 45%.[44] All MGBs assembled in Australia were roadsters.[3]

Motor sport edit

 
1965 MGB to FiA Appendix K Specification with period race modifications. Very similar to the cars that raced in the 1960s.

Specially tuned MGBs (including some with aluminium panels) were successful in international road competition events, scoring a Grand Touring category victory in the 1965 Monte Carlo Rally.[45] Circuit racing wins included the Guards 1000 miles race at Brands Hatch in 1965 and the 84-hour Marathon de la Route at the Nürburgring in 1966.[46] MGBs also won the GT Category in the 1966 Targa Florio, the 1966 Spa 1000 and the 1967 Spa 1000.[46]

Gallery edit

Notes edit

  1. ^ .
  2. ^ .
  3. ^ a b c Tom Aczel, History of the Australian-assembled MGB, mgbsmadeinaustralia.org 2014-07-14 at the Wayback Machine Retrieved on 8 July 2014
  4. ^ History of the MGB mgb.mgcc.info. Retrieved on 21 December 2011
  5. ^ "New Sports Car Tops 107 M.P.H.". The Times. No. 55501. 20 September 1962. p. 5.
  6. ^ "MGB GT LE". The MG Owners' Club.
  7. ^ Robson, Graham (2004). Essential MG. MotorBooks International. pp. 106–. ISBN 978-0-7603-2003-7. As with the Midget, MG took the brave decision to build the MGB around a monocoque structure. Although it meant that the capital cost of tooling was higher, the new car could be lighter and more rigid. Although MG's General ...
  8. ^ "MG/MGB/Chassis Info". Conceptcarz.com.
  9. ^ "1967 MGB 30mph frontal impact into a concrete block, Abingdon in 1967 (scroll down)". Mgb-stuff.org.uk. Retrieved 26 July 2011.
  10. ^ "AA issues warning to classic car owners after MG 'folded like a penknife'". Daily Telegraph. 15 January 2015. Retrieved 28 March 2016. Following the death of teacher Nick Sennett, the AA says classic cars 'simply do not have the damage resistance of modern vehicles'
  11. ^ Willson, Quentin (1995). The Ultimate Classic Car Book. DK Publishing, Inc. ISBN 0-7894-0159-2.
  12. ^ Wilson, Quentin (1995). The Ultimate Classic Car Book. DK Publishing. ISBN 0-7894-0159-2.
  13. ^ a b c d e . Archived from the original on 12 June 2013. Retrieved 5 June 2014.
  14. ^ Longstone Tyres - MGB - longstonetyres.co.uk
  15. ^ mgbjubilee.com
  16. ^ a b "Autotest – MG MGC Automatic". Autocar. Vol. 129 (nbr 3795). 7 November 1968. pp. 10–14.
  17. ^ a b c d e f Culshaw; Horrobin (1974). Complete Catalogue of British Cars. London: Macmillan. ISBN 0-333-16689-2.
  18. ^ Clausager, Anders Ditlev (2010). Original MGB - With MGC and MGB GT V8. United Kingdom: Herridge & Sons Ltd. pp. 10, 16, 18, 19, 25, 33, 34, 35, 40, 43. ISBN 978-1-906133-18-4.
  19. ^ "Television news item". YouTube. BBC Oxford News. 1 December 2011. Archived from the original on 12 December 2021. Retrieved 8 July 2012.
  20. ^ "MG Exhibition". Abingdon-on-Thames, UK: Abingdon County Hall Museum. Retrieved 8 July 2012.
  21. ^ "MG roadster, soft top; MG Works; 23.10.1980AD; BMHT Loan.1". eHive, Vernon Systems. Abingdon County Hall Museum. Retrieved 8 July 2012.
  22. ^ "Sports car projects : EX234". Austin Rover Online. 29 June 2016. Retrieved 23 August 2018.
  23. ^ "Sports car projects : ADO76". Austin Rover Online. 25 June 2011. Retrieved 23 August 2018.
  24. ^ "MG ADO21 - the mid-engined sporting might-have been". Austin Rover Online. 19 March 2023. Retrieved 18 December 2023.
  25. ^ "16 of Pininfarina's Most Beautiful Designs That Aren't Ferraris". Road & Track. 14 August 2019.
  26. ^ Coune MGB Berlinette, www.coachbuild.com 24 October 2017 at the Wayback Machine Retrieved 13 June 2016
  27. ^ "Used Car Test:1969 MGC". Autocar. Vol. 135 nbr 3940. 30 September 1971. pp. 18–19.
  28. ^ a b The Motor. Road test. 4 November 1967.
  29. ^ . www.cinturato.net. Archived from the original on 31 January 2012. Retrieved 14 February 2017.
  30. ^ "Autocar Road Test: MG MGC: New derivative of MGB with six-cylinder engine ... Lack of low speed torque and engine reluctant to rev. Very noisy fan. New all synchromesh gearbox works well but has odd choice of ratios with overdrive. Heavy fuel consumption. Light brakes, with some fade. Good ride; strong understeer; steering low geared. Lots of leg-room. Heater extra. Good finish". Autocar. Vol. 127 (nbr 3744). 16 November 1967. pp. 28–32.
  31. ^ "Safety Fast September 99 – MGC Newsletter". Mgcars.org.uk. Retrieved 11 December 2009.
  32. ^ Motor Magazine 25/8/1973
  33. ^ "Anybody Know Where They Are?". V8 Bulletin Board. Retrieved 18 December 2019.
  34. ^ David Dolbel (12 September 2010). "Presenting the MG RV8 at". Mgrv8.com. Retrieved 28 November 2010.
  35. ^ "One last hurrah: the 1994 MG RV8". Autoweek. Retrieved 18 April 2018.
  36. ^ "MG RV8 (1992–1995)". rac.co.uk. Retrieved 7 November 2014.
  37. ^ "Number of vehicles licensed or SORN, since 1994". howmanyleft.co.uk. Retrieved 7 November 2014.
  38. ^ "MG RV8 A Clever Reboot of the MG Sports Car Franchise". Hemmings.com.
  39. ^ MGRV8.COM (retrieved 17 April 2014)
  40. ^ Honest John (retrieved 17 April 2014)
  41. ^ Aronline (retrieved 17 April 2014)
  42. ^ Allan and Wilder (2011). "MG RV8: The Manufacturing Story" (PDF). the MG Car Club Ltd. Retrieved 4 October 2021 – via www.v8register.net.
  43. ^ MG MGB Roadster (1963–1972) www. carpoint.com.au. Retrieved on 21 December 2011
  44. ^ a b c d "News: MGB ends down under". Autocar. Vol. 137 (nbr 3992). 30 November 1972. p. 15.
  45. ^ Readers' guide to who won at Monte Carlo, British Motor Corporation advertisement, Life Magazine, 14 February 1964, page 81 Retrieved from books.google.com.au on 22 December 2011
  46. ^ a b ML Twite, The World's Racing Cars, Fourth Edition, 1970, page 104

References edit

  • Bonds, Ray (2003). The Illustrated Directory of Sports Cars. Motorbooks. ISBN 0-7603-1420-9.
  • Clausager, Anders Ditlev (1994). Original MGB With MGC and MGB GT V8. Bay View Books Ltd. ISBN 1-870979-48-6.
  • Heilig, John (1996). MG Sports Cars. Motorbooks. ISBN 0-7603-0112-3.
  • Holmes, Mark (2007). Ultimate Convertibles: Roofless Beauty. London: Kandour. pp. 106–107. ISBN 978-1-905741-62-5.
  • "MGB Home Page". MG Enthusiasts. Retrieved 21 March 2005.
  • "MGC Home Page". MG Enthusiasts. Retrieved 21 March 2005.
  • "MGB Buyers Guide". British Owners Group. Retrieved 21 March 2009.
  • . Classic Motorsports magazine. Archived from the original on 23 September 2009. Retrieved 7 April 2009.
  • Adams, Keith. . Archived from the original on 30 September 2010.

door, sports, manufactured, marketed, from, 1962, until, 1980, british, motor, corporation, later, austin, morris, division, british, leyland, four, cylinder, soft, sports, announced, details, first, published, september, 1962, variants, include, three, door, . The MGB is a two door sports car manufactured and marketed from 1962 until 1980 by the British Motor Corporation BMC later the Austin Morris division of British Leyland as a four cylinder soft top sports car It was announced and its details first published on 19 September 1962 5 Variants include the MGB GT three door 2 2 coupe 1965 1980 the six cylinder sports car and coupe MGC 1967 69 and the eight cylinder 2 2 coupe the MGB GT V8 1973 76 MG MGB1969 MGB roadster rollover bar non standardOverviewManufacturerBritish Motor Corporation 1963 1968 British Leyland 1968 1980 Rover Group 1993 1995 Production1962 1980 original 514 852 produced 1 1992 1995 MG RV8 1 999 produced 2 AssemblyAbingdon England Enfield Australia 3 Zetland Australia 4 Longbridge England MG RV8 Body and chassisClassSports carLayoutFR layoutChronologyPredecessorMGASuccessorMG FReplacing the MGA in 1962 production of the MGB and its variants continued until 1980 though fixed roof GT models ceased export to the US in 1974 Sales for the MGB MGC and MGB GT V8 combined totaled 523 836 cars After a 12 year hiatus the MGB re entered production as the heavily modified MG RV8 with a limited run of 2 000 cars before finally being replaced in 1995 by the MG F Contents 1 History 2 Drivetrain 3 Roadster 4 GT 5 MGC 6 MGB GT V8 7 MG RV8 8 Australian assembly 9 Motor sport 10 Gallery 11 Notes 12 ReferencesHistory editDevelopment of the MGB started at least as early as 1958 with the prototype known by its Abingdon codename MG EX205 6 In structure the car was a progressive modern design in 1962 using a unitary structure instead of the traditional body on frame construction used on both the MGA and MG T types and the MGB s rival the Triumph TR series 7 However components such as brakes and suspension were developments of the earlier 1955 MGA with the B Series engine having its origins in 1947 The lightweight design reduced manufacturing costs while adding to overall vehicle strength Wind up windows were standard and a comfortable driver s compartment offered plenty of legroom A parcel shelf was fitted behind the seats The MGB achieved a 0 60 mph 97 km h time of just over 11 seconds The three bearing 1 798 cc B Series engine produced 95 hp 71 kW at 5 400 rpm upgraded in October 1964 to a five bearing crankshaft From 1975 US market MGB engines were de tuned to meet emission standards ride height was increased by an inch 25 mm and distinctive rubber bumpers were fitted to meet bumper standards The MGB was one of the first cars to feature controlled crumple zones designed to protect the driver and passenger in a 30 mph 48 km h impact with an immovable barrier 200 ton 8 9 Nevertheless the British AA motoring association has described the car like many other classic models as much less safe than modern cars The issue received public attention following a 2013 case in which a driver in a hired 1963 MGB was killed in a collision with a taxi 10 A limited production of 2 000 units of the RV8 was produced by Rover in the 1990s Despite the similarity in appearance to the roadster the RV8 had less than 5 parts interchangeability with the original car citation needed The MGB remains a popular choice for collectors due to inexpensive and readily available parts and simple mechanics Drivetrain edit nbsp A sectioned MGB showing engine and gearbox configurationAll MGBs except the V8 version used the BMC B Series engine This engine was essentially an enlarged version of that used in the MGA with engine displacement being increased from 1 622 to 1 798 cc The earlier cars used a three main bearing crankshaft 18G series In February 1964 positive crank case breathing was introduced and the engine prefix changed to 18GA until October 1964 when a five bearing crankshaft design was introduced the engine prefix became 18GB Horsepower was rated at 95 net bhp on both five main bearing and earlier three bearing cars with peak power coming at 5 400 rpm with a 6 000 rpm redline Torque output on the MGB had a peak of 110 lb ft 150 N m and fuel consumption was around 25 mpg 11 US specification cars saw power fall in 1968 with the introduction of emission standards and the use of air or smog pumps In 1971 UK spec cars still had 95 bhp 71 kW at 5 500 rpm with 105 lb ft 142 N m torque at 2 500 rpm Engine prefixes became 18V and the SU carburettor needles were changed for reasons of the latest emission regulations under ECE15 By 1973 it was 94 bhp 70 kW by 1974 it was 87 with 103 lb ft 140 N m torque by 1975 it was 85 with 100 lb ft 140 N m Some California specification cars produced only around 70 hp 52 kW by the late 1970s The compression ratio was also reduced from 9 1 to 8 1 on US spec cars in 1972 All MGBs from 1963 to 1974 used twin 1 5 inch 38 mm SU carburettors US spec cars from 1975 used a single Stromberg 1 75 inch 44 mm carburettor mounted on a combination intake exhaust manifold This greatly reduced power as well as created longevity problems as the adjacent catalytic converter tended to crack the intake exhaust manifold All MGBs used an SU built electric fuel pump All MGBs from 1962 to 1967 used a four speed manual gearbox with a non synchromesh spur cut first gear Optional overdrive 12 was available This gearbox was based on that used in the MGA with some minor upgrades to cope with the additional output of the larger MGB engine In 1968 the early gearbox was replaced by a full synchromesh unit based on the MGC gearbox This unit was designed to handle the 150net bhp of the three litre engine of the MGC and was thus over engineered when mated with the standard MGB B Series engine The same transmission was used in the 3 5 litre V8 version of the MGB GT V8 An automatic three speed transmission was also offered as a factory option but was unpopular citation needed Electrically engaged overdrive gearboxes were an available option on all MGBs The overdrive unit was operational in third and fourth gears until 1977 when overdrive was only operational in fourth 13 but the overall ratio in third gear overdrive was roughly the same as fourth gear direct The overdrive unit was engaged by a toggle switch on the dashboard or by pulling the wiper lever towards the driver model dependent The switch was moved to the top of the gearshift knob in 1977 13 Overdrives were fitted to less than 20 of all MGBs There were three different types of overdrive transmissions fitted to the MGB 1962 64 1965 67 Laycock Type D OD note external solenoid A hole in the bell housing where the starter nose poked through Shield shaped access cover 1020 TPM for OD and 1040 TPM for non ODThe gearbox input shaft flywheel and engine backing plate were changed with the advent of the five main bearing engine in 1965 Therefore the transmission for a three main bearing engine 1962 1964 differed from its later counterpart 13 1968 to 1974 5 Laycock Type LH OD Rectangular shaped access cover Oval clutch fork boot Dipstick for checking oil Black label on the OD solenoid cover stamped 22 61972 1280 TPM for OD and non OD Speedometer drive gear on the mainshaft was blue Speedometer driven gear on removable drive housing was white with 21 teeth 13 1974 5 to 1980 Laycock Type LH OD Rectangular shaped access cover Square clutch fork boot Side fill plug no dipstick Blue label on the OD solenoid cover stamped 22 6 2005 1000 TPM for OD and non OD Speedometer drive gear on the mainshaft was red Speedometer driven gear on removable drive housing was red with 20 teethOverdrive operated in fourth gear only in units made from February 1977 onward 13 nbsp A sectioned MGB showing the rear axle and differentialEarly MGBs used the banjo type differential carried over from the MGA with the rear axle ratio reduced from the MGA s 4 1 or 4 3 to 3 9 to 1 Compensating for the reduction from 15 inch to 14 inch 360 mm wheels MGB GTs first began using a tube type rear axle in 1967 This unit was substantially stronger being like the later gearbox designed for the three litre MGC All MGBs used the tube type axle from 1968 All MGBs were fitted with 11 inch 280 mm solid non ventilated disc brakes on the front with drum brakes on the rear The front brake calipers were manufactured by Lockheed and used two pistons per caliper The brake system on the MGB GT was the same as the roadster with the exception of slightly larger rear brake cylinders A single circuit hydraulic system was used before 1968 when dual circuit separate front and rear systems were installed on all MGBs to comply with US regulations Servo assistance power brakes was not standard until 1975 Many modern and contemporary testers have commented on the very heavy brake pedal pressure needed to stop the non servo assisted cars citation needed The MGB initially had an extremely simple electrical system Dash mounted toggle switches controlled the lights ventilation fan and wipers with only the direction indicators being mounted on a stalk on the steering column The ignition switch was also mounted on the dash Like the MGA the MGB used two 6 volt batteries wired in series to give a 12 volt positive earth configuration The batteries were placed under a scuttle panel behind the seats making access difficult the location gave excellent weight distribution and thus improved handling The charging system used a Lucas dynamo Later MGBs had considerable changes to the electrical system including the use of a single 12 volt battery a change from positive to negative earth safety type toggle rocker switches alternator in lieu of dynamo additional warning lights and buzzers and most common functions moved to steering column stalks From 1972 there were two different Pirelli Cinturato radial tyre sizes factory fitted to new cars depending on whether the car was a roadster 155 80x14 or a GT 165 80x14 The original tyres for the majority of MGBs were 165HR14 Pirelli Cinturato 14 With the 1974 5 arrival of the rubber bumper cars the factory fitted tyre size was simplified to 165 80x14 for all cars irrespective of whether the car was a roadster or a GT and also irrespective of the wheel type wire or RoStyle The factory built V8s were fitted with alloy wheels and full profile 175HR14 tyres The Jubilee model made to celebrate the 50th anniversary of the company in 1975 had the alloy wheels from the V8 allegedly because the V8 was not selling and they had a large stock citation needed With a pre war British racing green colour tinted glass gold body stipes and other gold trim 751 Jubilees were made One was destroyed in an advertising stunt that went wrong There are thought to be about half of them left as of 2021 15 The final 1 000 LE models were the last cars to leave the factory with alloy wheels Roadster editMGB roadster nbsp 1963 MG B roadsterOverviewProduction1962 1980Body and chassisBody style2 door roadsterPowertrainEngine1 8 L B Series I4Transmission4 speed manual3 speed Borg Warner 35 automatic UK only DimensionsWheelbase2 312 mm 91 0 in 16 Length3 886 mm 153 0 in 4 019 mm 158 2 in rubber bumper version 17 Width1 524 mm 60 0 in 17 Height1 219 mm 48 0 in 1 295 mm 51 0 in rubber bumper version 17 nbsp Early 1974 MGB US model nbsp Rear of a late black bumper special MGB showing changes introduced in 1974 to meet new US regulations The roadster was the first of the MGB range to be produced The body was a pure two seater a small rear seat was a rare option at one point The MGB offered better space utilisation to passengers and luggage than the preceding MG A despite being both 3 in 7 6 cm shorter in wheelbase and overall length and 2 in 5 1 cm lower Growing in width by the same gave the MGB a distinctly lower and more squat stance than its forebear The suspension was softer giving a smoother ride citation needed and the larger engine gave a slightly higher top speed The four speed gearbox was an uprated version of the one used in the MGA with an optional electrically activated overdrive transmission Wheel diameter dropped from 15 to 14 in 36 cm In late 1967 enough changes were introduced for MG to declare the 1968 model year a Mark II model 18 Changes included new gearboxes with revised ratios and synchromesh on all four gears an optional Borg Warner 35 automatic gearbox except in the US peculiarly a new rear axle and an alternator in place of the dynamo with a change to a negative earth system The Mk II s new gearboxes required significantly altered floorpan sheet metal with a new flat topped transmission tunnel To meet US safety regulations for the 1968 model year the MGB received a plastic and foam rubber covered safety dashboard dubbed the Abingdon pillow and dual circuit brakes Other markets continued with the steel dashboard Rubery Owen RoStyle wheels were introduced to replace the previous pressed steel versions in 1969 and reclining seats were standardised citation needed 1969 also saw three windscreen wipers instead of two to sweep the required percentage of the glass US market only high seat backs with head restraints and side marker lamps The next year saw a new front grille recessed in black aluminium The more traditional looking polished grille returned in 1973 with a black honeycomb insert In North America 1970 saw split rear bumpers with the number plate in between 1971 1974 returned to the earlier single piece full length style chrome bumper citation needed Further changes in 1972 were to the interior with a new fascia To meet impact regulations 1974 US models had the chrome bumper over riders replaced with oversized rubber ones nicknamed Sabrinas after the British actress Sabrina In the second half of 1974 the chrome bumpers were replaced altogether A new steel reinforced black rubber bumper at the front incorporated the grille area as well giving a major restyling to the B s nose and a matching rear bumper completed the change New US headlight height regulations also meant that the headlamps were too low Rather than redesign the front of the car British Leyland raised the car s suspension by 1 inch 25 mm This in combination with the new far heavier bumpers resulted in significantly poorer handling For the 1975 model year only the front anti roll bar was deleted as a cost saving measure though still available as an option The damage done by the British Leyland response to US legislation was partially alleviated by revisions to the suspension geometry in 1977 when a rear anti roll bar was made standard equipment on all models US emissions regulations also reduced horsepower In March 1979 British Leyland started the production of black painted limited edition MGB roadsters for the US market meant for a total of 500 examples Due to a high demand for the limited edition model production ended with 6 682 examples The UK received bronze painted roadsters and a silver GT model limited edition The production run of homemarket limited edition MGBs was split between 421 roadsters and 579 GTs The last MGB roadster produced at Abingdon returned to Abingdon County Hall Museum on 1 December 2011 with the help of British Motor Heritage 19 It was lifted up 30 feet through a first floor window of the Grade I listed building with inches to spare 20 and now forms part of the collection on display in the main gallery 21 Work on a successor for the MGB had been undertaken as early as 1964 with the EX234 but due to the excellent sales of the MGB and MG Midget BMC cancelled it in 1966 22 In 1968 a second proposed replacement was developed the ADO76 but British Leyland had ceased work on that project by the end of 1970 the ADO76 would ultimately become the rubber bumper version of the MGB in 1974 23 A third MGB replacement was developed in 1969 this time with a mid mounted BMC E series engine semi independent Hydrolastic suspension and Ferrari like styling This was cancelled in 1970 in favour of the more conventional Triumph Bullet which later became the TR7 24 When the Abingdon factory finally closed in late 1980 British Leyland did not replace it with the EX234 prototype finally being sold at auction in 2016 The decision to discontinue the MGB came about largely due to the poor sales performance of the Triumph TR7 which had largely taken over as BL s contemporary offering in the small sports car market BL management felt that continued production of the MGB was cannibalising the TR7 s sales and this therefore was a justification for taking it off the market However the TR7 failed to sell and was axed a year later The MG marque was subsequently used to badge engineer sports versions of the Austin Metro Austin Maestro and Austin Montego throughout the 1980s prior to the re emergence of the MGB in late 1992 as the MG RV8 GT editMGB GT nbsp OverviewProduction1965 1980DesignerPininfarinaBody and chassisBody style2 door hatchback coupePowertrainEngine1 8 L B Series I4DimensionsWheelbase2 312 mm 91 0 in 16 Length3 886 mm 153 0 in 4 019 mm 158 2 in rubber bumper version 17 Width1 524 mm 60 0 in 17 Height1 238 mm 48 7 in 1 295 mm 51 0 in rubber bumper version 17 The fixed roof MGB GT was introduced in October 1965 Production continued until 1980 although export to the US ceased in 1974 The MGB GT sported a ground breaking greenhouse designed by Pininfarina and launched the sporty hatchback style By combining the sloping rear window with the rear deck lid the B GT offered the utility of a station wagon while retaining the style and shape of a coupe This new configuration was a 2 2 design with a right angled rear bench seat and far more luggage space than in the roadster Relatively few components differed although the MGB GT did receive different suspension springs and anti roll bars and a different windscreen which was more easily and inexpensively serviceable In 2019 Road amp Track named the GT one of the 16 of Pininfarina s Most Beautiful Designs That Aren t Ferraris 25 Although acceleration of the GT was slightly slower than that of the roadster owing to its increased weight top speed improved by 5 mph 8 0 km h to 105 mph 169 km h because of better aerodynamics A special edition of the GT was produced in 1975 for the 50th Anniversary of the MG Car Company It was in pre war British Racing Green had tinted glass gold body stripes V8 alloy wheels painted in gold and black and other gold trim 751 Jubilees were made one of which was destroyed in an advertising stunt that went wrong There are thought to be about half of them left as of 2021 The MGB Berlinette produced by the Belgian coach builder Jacques Coune used a raised windscreen to accommodate the fastback Fifty six were produced 26 nbsp MGB GT 1967 nbsp MGB GT 1978 nbsp An MGB GT Jubilee nbsp MGB Berlinette by Jacques Coune Carrossier of BelgiumMGC editMGC amp MGC GT nbsp MGC GTOverviewProduction1967 1969Body and chassisBody style2 door roadster2 door coupePowertrainEngine2 9 L C Series I6ChronologyPredecessorAustin Healey 3000 nbsp 1968 MGC GTThe MGC was a 2 912 cc straight six version of the MGB sold from 1967 and produced until August 1969 27 with some sales running on into 1970 The car was given the model code ADO52 It was intended as a replacement for the Austin Healey 3000 Mk III which would have been ADO51 but in that form never got beyond the design proposal stage The first engine to be considered was an Australian designed six cylinder version of the BMC B Series but the production versions used a new seven main bearing development of the Morris Engines designed C Series that was also to be used for the new Austin 3 litre four door saloon In the twin SU carburettor form used in the MGC the engine produced 145 bhp 108 kW at 5 250 rpm 28 The body shell needed considerable revisions around the engine bay and to the floor pan but externally the only differences were a distinctive bonnet bulge to accommodate the relocated radiator and a teardrop for carburettor clearance It had different brakes from the MGB 15 inch wheels with Pirelli Cinturato 165HR15 tyres CA67 29 a lower geared rack and pinion and special torsion bar suspension with telescopic dampers Like the MGB it was available as a coupe GT and roadster An overdrive gearbox or three speed automatic gearbox were available as options The car was capable of 120 mph 193 km h and a 0 60 mph time of 10 0 seconds 28 The heavy engine 209 lb heavier than the 1 798 cc MGB engine and new suspension changed the vehicle s handling and it received a mixed response in the automotive press It later transpired that the BMC press department had set the tyre pressures of the cars in the launch fleet incorrectly to the same values as the standard MGB and that even the correct pressures were insufficient to get the best handling from the car The MGC was cancelled in 1969 after less than two years of production At the time of the car s launch the manufacturers stated that the Austin Healey 3000 would continue to be offered as a parallel model priced on the domestic market at 1 126 compared to the MGC s 1 102 30 nbsp 1969 MGC engine bay with correct engine colour brake servos and original US emissions In 1967 Prince Charles took delivery of an MGC GT SGY 766F which he passed down to Prince William 30 years later 31 nbsp MGC roadster 1969 US specification nbsp MGC roadster 1968 nbsp MGC GT nbsp MGC GTMGB GT V8 editMGB GT V8 nbsp MGB GT V8OverviewProduction1973 1976Body and chassisBody style2 door coupePowertrainEngine3 5 L Rover V8MG began offering the MGB GT V8 in 1973 powered by the aluminium block aluminium head 3 532 cc Rover V8 engine first fitted to the Rover P5B The V8 s 137 hp 102 kW and 193 lb ft 262 N m of torque allowed it to reach 60 mph 97 km h in 7 7 seconds and go on to a 125 mph 201 km h top speed Fuel consumption was just under 20 mpg 32 By virtue of its aluminium cylinder block and heads the Rover V8 engine weighed approximately 20 kilos less than MG s iron four cylinder Unlike the MGC the V8 that provided the MGB GT V8 s increased power and torque did not require significant chassis changes nor sacrifice handling Both chrome and rubber bumpered GT versions of the V8 powered MGB were produced by the factory with production ending in 1976 MG never attempted to export the MGB GT V8 to the United States It chose not to even develop a left hand drive version of the MGB GT V8 although the Rover V8 engine had been offered in certain US bound Rover models The P6 3500 however was withdrawn from the US after 1971 and the Rover 3500 SD1 only introduced in 1980 its engine equipped with power sapping emissions equipment so that during the lifetime of the MGB GT V8 the engine was not being built in a federal version Abingdon built seven LHD examples sent them to America to achieve certification and brought them back to the UK to be sold to mainland European countries 33 better source needed MG RV8 editMG RV8 nbsp MG RV8OverviewProduction1992 1995Body and chassisBody style2 seat roadsterPowertrainEngine3 9 L Rover V8Subsequent to the launch of the Mazda MX 5 in 1989 British Motor Heritage by then owned by Rover Group had placed the MGB bodyshell back in production to serve the MGB restoration market The success of the MX 5 had given Rover confidence that the market for 2 seater roadsters had re emerged and the decision was taken in 1991 to create an updated MGB model The suspension was only slightly updated sharing the leaf spring rear of the MGB The boot lid and doors were shared with the original car as were the rear drum brakes The engine was the 3 9 litre version of the aluminium Rover V8 similar to the one previously used in the MGB GT V8 A limited slip differential was also fitted The MG RV8 debuted at the British International Motor Show in October 1992 citation needed The British Motor Heritage manufactured bodyshell was painted at Rover s Cowley plant before final assembly at Cowley where the cars were hand built in a separate unit the LVA The interior featured veneered burr elm woodwork and Connolly leather 34 The engine produced 190 bhp 142 kW at 4 750 rpm achieving 0 60 mph 96 km h in 5 9 seconds Largely due to the rear drum brakes and rear leaf springs the RV8 was not popular with road testers citation needed The high price of the car put it in direct competition with contemporary rivals from specialist manufacturers such as TVR which offered modern technology and a more up to date driving experience A large proportion of the limited MG RV8 production went to Japan 1 579 of the 1 983 produced 35 In the UK 330 RV8s were sold initially 36 Several hundred possibly as many as 700 of these cars were reimported back to the UK and also Australia between 2000 and 2010 with a peak number of 485 registered at the DVLA in the UK 37 Several observers consider the RV8 a continuation of the MGB model 38 39 40 41 42 No left hand drive examples were produced Australian assembly editThe MGB was assembled in Australia from 1963 to 1972 43 during which time approximately 9 000 were sold 44 The cars were assembled from complete knock down kits shipped from England 44 Initially assembly was undertaken by the Pressed Metal Corporation at its Enfield facility but was subsequently moved to BMC Australia s Zetland plant in 1968 3 Australian assembly ended in 1972 when the government issued a requirement that to enjoy favourable tariff treatment locally produced cars should feature 85 local content 44 At the time the local content of the Australian assembled MGBs was evaluated as just 45 44 All MGBs assembled in Australia were roadsters 3 Motor sport edit nbsp 1965 MGB to FiA Appendix K Specification with period race modifications Very similar to the cars that raced in the 1960s Specially tuned MGBs including some with aluminium panels were successful in international road competition events scoring a Grand Touring category victory in the 1965 Monte Carlo Rally 45 Circuit racing wins included the Guards 1000 miles race at Brands Hatch in 1965 and the 84 hour Marathon de la Route at the Nurburgring in 1966 46 MGBs also won the GT Category in the 1966 Targa Florio the 1966 Spa 1000 and the 1967 Spa 1000 46 Gallery edit nbsp 1966 MGB GT nbsp MGB roadster 1972 interior nbsp MGB roadster 1972 UK nbsp 1973 MGB tourer fitted with factory hardtop nbsp North American rubber bumper MGB 1975 nbsp Early MGB roadster with optional hardtop fitted nbsp Front view of a 1975 MGB rubber bumper series nbsp Rear view of the MG RV8 unusual in Flame RedNotes edit Austin Rover Online Austin Rover Online a b c Tom Aczel History of the Australian assembled MGB mgbsmadeinaustralia org Archived 2014 07 14 at the Wayback Machine Retrieved on 8 July 2014 History of the MGB mgb mgcc info Retrieved on 21 December 2011 New Sports Car Tops 107 M P H The Times No 55501 20 September 1962 p 5 MGB GT LE The MG Owners Club Robson Graham 2004 Essential MG MotorBooks International pp 106 ISBN 978 0 7603 2003 7 As with the Midget MG took the brave decision to build the MGB around a monocoque structure Although it meant that the capital cost of tooling was higher the new car could be lighter and more rigid Although MG s General MG MGB Chassis Info Conceptcarz com 1967 MGB 30mph frontal impact into a concrete block Abingdon in 1967 scroll down Mgb stuff org uk Retrieved 26 July 2011 AA issues warning to classic car owners after MG folded like a penknife Daily Telegraph 15 January 2015 Retrieved 28 March 2016 Following the death of teacher Nick Sennett the AA says classic cars simply do not have the damage resistance of modern vehicles Willson Quentin 1995 The Ultimate Classic Car Book DK Publishing Inc ISBN 0 7894 0159 2 Wilson Quentin 1995 The Ultimate Classic Car Book DK Publishing ISBN 0 7894 0159 2 a b c d e Overdrive Transmissions Tom Sotomayor Archived from the original on 12 June 2013 Retrieved 5 June 2014 Longstone Tyres MGB longstonetyres co uk mgbjubilee com a b Autotest MG MGC Automatic Autocar Vol 129 nbr 3795 7 November 1968 pp 10 14 a b c d e f Culshaw Horrobin 1974 Complete Catalogue of British Cars London Macmillan ISBN 0 333 16689 2 Clausager Anders Ditlev 2010 Original MGB With MGC and MGB GT V8 United Kingdom Herridge amp Sons Ltd pp 10 16 18 19 25 33 34 35 40 43 ISBN 978 1 906133 18 4 Television news item YouTube BBC Oxford News 1 December 2011 Archived from the original on 12 December 2021 Retrieved 8 July 2012 MG Exhibition Abingdon on Thames UK Abingdon County Hall Museum Retrieved 8 July 2012 MG roadster soft top MG Works 23 10 1980AD BMHT Loan 1 eHive Vernon Systems Abingdon County Hall Museum Retrieved 8 July 2012 Sports car projects EX234 Austin Rover Online 29 June 2016 Retrieved 23 August 2018 Sports car projects ADO76 Austin Rover Online 25 June 2011 Retrieved 23 August 2018 MG ADO21 the mid engined sporting might have been Austin Rover Online 19 March 2023 Retrieved 18 December 2023 16 of Pininfarina s Most Beautiful Designs That Aren t Ferraris Road amp Track 14 August 2019 Coune MGB Berlinette www coachbuild com Archived 24 October 2017 at the Wayback Machine Retrieved 13 June 2016 Used Car Test 1969 MGC Autocar Vol 135 nbr 3940 30 September 1971 pp 18 19 a b The Motor Road test 4 November 1967 Pirelli Cinturato www cinturato net Archived from the original on 31 January 2012 Retrieved 14 February 2017 Autocar Road Test MG MGC New derivative of MGB with six cylinder engine Lack of low speed torque and engine reluctant to rev Very noisy fan New all synchromesh gearbox works well but has odd choice of ratios with overdrive Heavy fuel consumption Light brakes with some fade Good ride strong understeer steering low geared Lots of leg room Heater extra Good finish Autocar Vol 127 nbr 3744 16 November 1967 pp 28 32 Safety Fast September 99 MGC Newsletter Mgcars org uk Retrieved 11 December 2009 Motor Magazine 25 8 1973 Anybody Know Where They Are V8 Bulletin Board Retrieved 18 December 2019 David Dolbel 12 September 2010 Presenting the MG RV8 at Mgrv8 com Retrieved 28 November 2010 One last hurrah the 1994 MG RV8 Autoweek Retrieved 18 April 2018 MG RV8 1992 1995 rac co uk Retrieved 7 November 2014 Number of vehicles licensed or SORN since 1994 howmanyleft co uk Retrieved 7 November 2014 MG RV8 A Clever Reboot of the MG Sports Car Franchise Hemmings com MGRV8 COM retrieved 17 April 2014 Honest John retrieved 17 April 2014 Aronline retrieved 17 April 2014 Allan and Wilder 2011 MG RV8 The Manufacturing Story PDF the MG Car Club Ltd Retrieved 4 October 2021 via www v8register net MG MGB Roadster 1963 1972 www carpoint com au Retrieved on 21 December 2011 a b c d News MGB ends down under Autocar Vol 137 nbr 3992 30 November 1972 p 15 Readers guide to who won at Monte Carlo British Motor Corporation advertisement Life Magazine 14 February 1964 page 81 Retrieved from books google com au on 22 December 2011 a b ML Twite The World s Racing Cars Fourth Edition 1970 page 104References edit nbsp Wikimedia Commons has media related to MG B Bonds Ray 2003 The Illustrated Directory of Sports Cars Motorbooks ISBN 0 7603 1420 9 Clausager Anders Ditlev 1994 Original MGB With MGC and MGB GT V8 Bay View Books Ltd ISBN 1 870979 48 6 Heilig John 1996 MG Sports Cars Motorbooks ISBN 0 7603 0112 3 Holmes Mark 2007 Ultimate Convertibles Roofless Beauty London Kandour pp 106 107 ISBN 978 1 905741 62 5 MGB Home Page MG Enthusiasts Retrieved 21 March 2005 MGC Home Page MG Enthusiasts Retrieved 21 March 2005 MGB Buyers Guide British Owners Group Retrieved 21 March 2009 MGB Buyers Guide Classic Motorsports magazine Archived from the original on 23 September 2009 Retrieved 7 April 2009 Adams Keith The Unofficial Austin Rover Web Resource Archived from the original on 30 September 2010 Retrieved from https en wikipedia org w index php title MG MGB amp oldid 1209170603, wikipedia, wiki, book, books, library,

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