Morgan Plus 8
Morgan Plus 8, built in 1984
|Morgan Plus 8|
|Class :||Sports car|
|Body versions :||Roadster|
Otto engine : 3.5-4.8 liters
|Wheelbase :||2440-2535 mm|
|Empty weight :||935-1110 kg|
|successor||Morgan Plus Six|
The Morgan Plus 8 is a 1930s-style open-top sports car with an 8-cylinder Rover V-engine , which the Morgan Motor Company built around 6000 times from September 1968 to 2004. When production of the engine was discontinued, the construction period of the Morgan Plus 8 also ended, which was replaced by a similar model with a V6 engine. There was a new Plus 8 between 2012 and 2018, but with contemporary technology and a slightly different exterior. The successor model Morgan Plus Six was presented at the 89th Geneva Motor Show in March 2019.
After around 25 years of continuous success with motorized three-wheelers , Morgan built the first four- wheel sports car, the Morgan 4/4, with a Coventry Climax four-cylinder engine in 1935 . This engine had a displacement of 1122 cm³. It was followed by a 1.3 liter Standard Motor Company and a variety of others. The basic construction was retained during the entire construction period, also as Plus 4 and from 1968 as Plus 8: a frame made of steel and a body in composite construction, i.e. with a frame made of ash wood that is planked with sheet metal. The chassis consists of a rigid axle on leaf springs at the rear and the individual wheel suspension typical of Morgan with straight-line guidance and coil springs at the front.
Chassis and body
The Morgan Plus 8 has a steel ladder frame on which a 94-part wooden frame made of ash wood is built, which carries the hand-driven sheet metal of the body. The bonnet is noticeably long, divided lengthways and can be folded up from the side, as was otherwise only to be found on a few vehicles until the mid-1950s. As a real roadster , the car only has primitive weather protection, a relatively small windshield with (initially three) small windscreen wipers, deeply cut, front-hinged doors and clip-on side windows; the spare wheel is on the outside of the rear. The first version of the Plus 8 with an interior width of 1170 mm and a seat depth of 500 mm also offers enough space for two people. A contemporary test also states that the driver's seat can be pushed back enough "so that the fine Astrali leather steering wheel can be gripped at an acceptable distance ..." The display instruments are in the middle of the dashboard (until the mid-1970s) , whereby the tachometer is placed in the driver's field of vision depending on the right or left hand drive.
The front independent suspension of the Plus 8 is based on a design by Harry FS Morgan from 1909. It works with swivel and sliding joints on each wheel, which are attached to a cross member of the frame. A joint consists of a vertical, round support column (guide tube) on which a sleeve slides, which is twisted for steering and pushed up for compression. The sleeve is supported on a helical spring that surrounds the support column. The rear rigid axle with telescopic shock absorbers is suspended from longitudinal leaf springs. The first models up to and including 1982 had a worm steering with steering fingers, since 1983 it has been a rack and pinion steering. Disc brakes are installed at the front and drum brakes at the rear. Light alloy wheels were part of the standard equipment right from the start.
engine and gears
The engine, built between 1968 and 1972, is a water-cooled eight-cylinder four-stroke V-engine P6B from Rover with a central camshaft driven by a chain and two SU downdraft carburetors HS 6; Displacement 3532 cm³, power 160 PS (118 kW) at 5200 / min, maximum torque 29 mkp (284 Nm) at 2200 / min. Due to stricter emissions regulations, the output fell to 143 hp (105 kW) in the following years, but was increased again from 1976 and rose to 140 kW (190 hp) in 1983 with the introduction of gasoline injection instead of carburettors. In 1990 the displacement was increased to 3.9 liters without increasing the output, and since 1997 there was a short-term option of a 4.6-liter engine with 162 kW (220 PS). Because of the aluminum engine block, it is very light.
The Morgan Plus 8 had a four-speed gearbox with center shift and rear-wheel drive with limited-slip differential until 1976 . First gear was not synchronized until 1972; the later models have full synchronization. From 1977 it is a five-speed gearbox. The clutch is operated hydraulically. A special feature of the VW Beetle up to August 1957 is the Plus 8's accelerator pedal with a roller instead of a step plate; In the beginning, there was also a button above the accelerator pedal, which had to be pressed as daily as possible in order to pump a small amount of oil from the crankcase of the engine to the parts of the front axle to be lubricated.
In an early test, the elasticity of the engine was praised, as was the acceleration of the car from 0 to 100 km / h in 7.5 seconds. Regarding the top speed of 201 km / h, it was said: “At 173 km / h, the test car had already reached the red area at 5000 revs on the rev counter, which suggests that the rear axle ratio was too tight given the limited turning capacity . After all, it is comforting that the Morgan's engine performance is good for 200 km / h - you don't necessarily want to drive this 200. Because at 140 km / h all hell breaks loose and you feel transported back to the prehistoric times of the automobile. "
Special features for the US market
Morgan had already created a good sales market in the USA in the 1950s and 1960s, while sales figures in Europe stagnated. However, when stricter laws on exhaust emissions were to be introduced in the USA at the beginning of the 1970s, all Morgans imported from 1974 to 1992 (98% of which were Plus 8) were converted to propane gas. In addition, the body was changed in several places in order to meet the stricter safety regulations.
New Morgan Plus 8
Between 2012 and 2018 there was a new Morgan Plus 8, at first glance little changed, but 15 cm longer and 29 cm wider than the original from 1968. It has a V8 engine of the type BMW N62 with a displacement of 4799 cm³, Output 270 kW (367 hp) at 6300 rpm, maximum torque 490 Nm at 3400 rpm; optionally with manual transmission or 6-speed automatic. The top speed is limited to 249 km / h, acceleration from 0 to 100 km / h is specified in 4.5 seconds. The empty weight of the car is 1100 kg. The ash wood frame no longer exists; instead, the new Plus 8 has an aluminum monocoque chassis. The wheels are suspended from double wishbones with coil springs.
To mark the model's fiftieth birthday, Morgan presented the Morgan Plus 8 50th Anniversary Edition, limited to fifty copies, at the 88th Geneva Motor Show in March 2018 . Each vehicle has an individual number and a special paint finish. Every Plus 8 50th Anniversary Edition comes with a limited Christopher Ward C1 Morgan Plus 8 anniversary chronometer . The special models are the last Plus 8 to be powered by the BMW N62 engine. The purchase price for the limited vehicle is £ 107,500 net .
|Morgan Plus 8||1970||2000||2004||2012|
|Engine type||Rover P6B||BMW N62|
|Engine type||8-cylinder V-engine, four-stroke, cylinder bank angle 90 °|
|Displacement||3532 cc||4555 cc||3946 cc||4799 cc|
|Bore × stroke||88.9 x 71.1 mm||94.0 x 82.0 mm||94.0 x 71.1 mm||93.0 x 88.3 mm|
|Power at 1 / min||118 kW (160 hp)
|162 kW (220 PS)
|140 kW (190 PS)
|270 kW (367 hp)
|Max. Torque at 1 / min||284.4 Nm (29 mkp) at 2600||353 Nm at 3600||305 Nm at 3500||490 Nm at 3400|
|compression||10.5: 1||9.4: 1||9.3: 1||10.5: 1|
|Valve control||Bumpers and rocker arms,
chain driven central camshaft
|2 overhead camshafts
per cylinder bank
|Mixture preparation||2 downdraft carburetors||Manifold injection|
|cooling||Water cooling with pump and thermostat|
|transmission||4-speed manual gearbox,
3rd – 4th Gear synchronized
|5-speed manual transmission,
6-speed automatic transmission
|Front suspension||individually, each with a round support column, a sleeve sliding on it carries the steering knuckle,
coil springs, telescopic shock absorbers
coil springs, telescopic shock absorbers
|Rear suspension||Rigid axle on leaf springs, telescopic shock absorbers||Double wishbones,
coil springs, telescopic shock absorbers
|chassis||Ladder frame made of steel, on it non-load-bearing body in mixed construction
(wooden frame made of 94 parts, planked with sheet metal)
|Aluminum, shell construction|
|Front / rear track||1220/1280 mm||1345/1375 mm||1550/1500 mm|
|wheelbase||2490 mm||2440 mm||2535 mm|
|length||3860 mm||3960 mm||4010 mm|
|Standard tires||185 VR 15||205/60 R 15 V||front: 225/40 R 18 V
rear: 245/40 R 18
|Empty weight||935 kg||940 kg||1110 kg||1100 kg|
|Acceleration 0-100 km / h||7.5 s||5.9 s||6.0 s||4.5 s|
|Top speed||200 km / h||213 km / h||200 km / h||249 km / h|
- Official website Morgan Plus 8 . morgan-motor.co.uk. Retrieved May 5, 2016.
References and comments
- Number of items according to Zwischengas.com. Vehicle reports . Retrieved April 25, 2016.
- Morgan Plus 8 and Roadster V6 in the driving report. In: auto motor und sport . Retrieved April 24, 2016.
- Morgan Park . Retrieved April 24, 2016.
- Morgan Plus Six: For the first time with turbo and new aluminum chassis. March 5, 2019, accessed April 5, 2019 .
- Encyclopedia of the Automobile. Weltbild Verlag, Augsburg 1995. ISBN 3-89350-534-2 . P. 282 and 283.
- Since 1986 the frame has been impregnated with a wood preservative.
- beginning it was sheet steel, since 1977 it has been aluminum. See Motor Klassik , issue 7/1998. P. 27.
- Wolfgang König: Full in plus . In: Motor Klassik, issue 7/1998, pp. 24–28.
- Klaus Westrup: Übermorgan . In: auto motor und sport, issue 10/1970, pp. 60–68.
- Zwischengas.de . Retrieved April 24, 2016.
- Autozeitung.de. Morgan Plus 8 Roadster with BMW V8 . Retrieved April 25, 2016.
- auto-motor-und-sport.de. Special model for the 50th birthday . Retrieved March 12, 2018.
- morgan-motor.co.uk. Morgan Motor Company unveils Plus 8 50th Anniversary Special Edition . Retrieved March 12, 2018.