Mitsubishi Starion

Mitsubishi Starion
Overview
Manufacturer	Mitsubishi Motors
Also called	Mitsubishi Colt Starion Chrysler Conquest Dodge Conquest Plymouth Conquest
Production	1982–1990
Assembly	Nagoya, Aichi, Japan
Body and chassis
Class	Sports car
Body style	3-door coupé
Platform	FR layout
Powertrain
Engine	4G63 2.0 L I4 4G54 2.6 L I4
Transmission	5-speed manual 4-speed automatic
Dimensions
Wheelbase	2,435 mm (95.9 in)
Length	4,410 mm (173.6 in) (1982–87) 4,400 mm (173.2 in) (1988–90)
Width	1,685 mm (66.3 in) (narrowbody) 1,745 mm (68.7 in) (widebody) 1,735 mm (68.3 in) (1988–90)
Height	1,320 mm (52.0 in) (1982–87) 1,275 mm (50.2 in) (1988–90)
Curb weight	1,260 kg (2,780 lb) (narrowbody) 1,340 kg (2,950 lb) (widebody)
Chronology
Predecessor	Mitsubishi Galant Lambda GSR
Successor	Mitsubishi GTO/3000GT

The Mitsubishi Starion is a two-door, turbocharged four-cylinder rear-wheel drive four-seat sports car that was in production from 1982 to 1990. It was also marketed in North America as the Conquest under the Chrysler, Dodge, and Plymouth names; both the Starion and Conquest came to an end in 1989. Although preceded by earlier turbocharged designs such as the Porsche 930 (1975), Saab 99 (1978) and the Mitsubishi Lancer EX 2000 Turbo (1980), it is considered to be one of the originators of the modern Japanese turbocharged performance automobile genre.

The "Starion" name is claimed by Mitsubishi to be a contraction of "Star of Orion", although an urban legend claims that it was intended to be stallion, as a result of an "Engrish" mistranslation. This story is wrong, however, as its primary theme is that there was no Japanese translation for double ells (ll). This is proven wrong by the existence of the Toyota Corolla. Clearly, the Japanese mastered the double ell, as there are no "Cororas" running around. There is also documentation in the form of early product manuals that clearly show "Star of Orion" being condensed into Starion.

Background

The Starion's appearance in 1982 occurred during a period in which a number of Japanese Grand Tourer (GT) sports cars were increasing in popularity. Every nearly major Japanese manufacture put their hats into the ring. Mitusbishi produced the turbocharged Starion as their entry into the competition. Over the run of the vehicle there was constant evolution with nearly every year bringing changes, power increased as well as size and complexity.

The starion was sold under different brandings. In the US it was sold under Mitsubishi as the Starion and under Plymouth and Chrysler as the Conquest. In the UK it was sold as the Colt Starion.

The Starion was produced in two distinct body styles; A narrowbody and widebody often referred to as "Flatty" and "Fatty". Only the narrow body was offered until the 1985.5 model year in the US. Mechanically both body styles were similar, but many parts are not interchangeable. The introduction of the widebody also split the car into to distinct ranges. One a non-intercooled lower horsepower car using the narrow body style and a high performance intercooled widebody. It should be noted some markets never received the widebody cars, but had flatties with most of the wide body upgrades as their top of the line model.

In most markets widebody cars where given the label of Starion ESI-r of Conquest TSI. Markets that never received the widebody had the ESI-r label these cars had similar performance as the widebodies, just in a flatty body.

An unusual feature of the interior design were the door-mounted driver and front seat passenger seatbelts.

Narrow body cars often were just referred to as Starion or Conquest. The narrow body model ran until late 1986.

Constant upgrades to the model included the addition of an intercooler, 5 lug wheels replacing the four-bolt wheels it had inherited from the rear wheel drive Mitsubishi Galant Lambda, rear power train changes from 5 to 6 bolt axles, various fuel management upgrades and upgrades to the transmission.

Towards the end of the models US run widebody could be bought with a "Sports Handling Package" or SHP. This was made up of adjustable front and rear struts and 1 inch wider wheels (up from 7/8 the 8/9 fronts and rear). The SHP was only offered during the 88 and 89 model years.

European and Japanese models had a limited slip differential as an option on these cars. It was standard on US models, as is the independent rear suspension. The Starion and Conquest were also released in Australia with a 2.0 liter engine vs. the standard 2.6 liter G54B powerplant.

In the United States, Mitsubishi used a (SOHC) G54B Mitsubishi Astron engine paired with throttle-body fuel injection which mixed the fuel with the air prior to entering the plenum chamber.

Notable upgrades include MPI (Multi-Port-Injection) consisting of standalone engine management (programmable computers) to control individual fuel injectors, 1 per cylinder vs. the stock primary and secondary at the throttle body).

Production ceased entirely by 1990, and its successor, the GTO was fitted with the mechanicals of the recently demonstrated Mitsubishi HSX Sports Coupe concept vehicle.

Many of the performance features of the Starion were integrated into later vehicles and can be found in the Mitsubishi Lancer Evolution, the Mitsubishi Galant VR-4, and the Mitsubishi Eclipse.

Overview

The Starion used a traditional front-mounted engine with rear-wheel drive layout. Many came with a limited slip differential and anti-lock brakes (single channel, rear wheels only) as standard features. The entire chassis was derived from the previous high performance variant of the Mitsubishi Sapporo or Mitsubishi Galant Lambda sports coupe, with a MacPherson strut suspension and swaybars that were fitted to front and rear.

Engine capacity differed between markets. American customers received the larger SOHC Astron G54B 2.6 L engine. Most markets received the SOHC 2.0 L Sirius 4G63 engine, subsequently featured in DOHC form in later Mitsubishi sport compacts such as the Mitsubishi Lancer Evolution. Both the 2.0 L and the 2.6 L produced roughly the same horsepower, the larger 2.6 L did have a slight torque advantage and the 2.0L had a higher redline. Both engines featured computer controlled fuel injection and turbocharging. After 1987, European Starion models were also fitted with the 2.6 L engine, as was the GSR-VR for Japan. The move to the 2.6 L in all markets was spurred by emissions restrictions around the world tightening to meet the American standards for lead in fuels.

Horsepower varied between 150–197 hp (112–147 kW; 152–200 PS) depending mostly upon the turbocharger that was fitted, the presence of an intercooler, and whether the 8-valve or 12-valve head was used.

The last of the leaded petrol Starion EX's sold in New Zealand had 8 Valves, an Intercooler and 225 Hp (168 kW.)

A naturally-aspirated version known as the GX was also built for the Japanese market, however production ceased in 1983 due to low sales figures. The Starion GX had no power windows, no air conditioning, no independent rear suspension, no fuel injection and did not have power-assisted steering.

Seating was a 2+2 arrangement, although the rear seats are not too suitable for large adults. The front seats were adjustable for lumbar, angle, knee support, position and featured variable-angle side-braces.

One of the more unusual features was that the seatbelts were located in the doors for the driver and front passenger. '87 and later American models featured electrically operated seatbelts.

A five-speed manual transmission was standard in most models, however, an automatic transmission was sold as an option in some markets.

The drag coefficient was around 0.32; although quite angular, the aerodynamics were quite efficient for the era and around the average for a modern hatchback. It outperformed the Mazda RX-7 and the Nissan 300ZX upon its release.

Models

A number of models existed throughout the world during 1982 to 1990.

Japan

2.0 L 4G63 engine, apart from GSR-VR which has 2.6 L [Mitsubishi engine#G54B].

The Japanese domestic market had a large range of Starions to choose from.

• GX - 1982–1983 (non turbo)
• GSR-I,GSR-II,GSR-III, GSR-X - 1982–1984
• GSR-II, GSR-III,GSR-X,GSR-V - 1985–1986 - can be distinguished from the earlier starions by driving lights in the front bumper
• GSR-V - 1986–1987 - some had Sirius Dash engine
• GSR-VR - 1987–1990 (widebody)

The Roman numeral after 'GSR' denotes the vehicle specification. Some examples can be found below:

• GSR-I - base model
• GSR-II - power steering and electric windows
• GSR-III - improved audio system, trip computer system, digital dash cluster, and air conditioning.
• GSR-X - leather interior replaced the cloth, climate control, air conditioning, cruise control

Australia

2.0 L 4G63 engine.

Australian vehicles were mostly similar to the European Turbo specification. The J codes below denote the model version, and are found on the Australian Vehicle Information Plates.

• JA - 1982–1984
• JB - 1984–1985
• JD - 1985–1987

North America

It was marketed in North America by Mitsubishi as the Starion from 1983 until 1989 and by Chrysler as the Conquest under both the Dodge and Plymouth names from 1984 to 1986 and under the Chrysler name from 1987 until 1989.

2.6 L G54B engine. with TD05-12A Mitsubishi turbocharger

Mitsubishi

• LS
• ES
• ESI
• LE
• ESI-R - widebody, all others above are narrowbody

Chrysler/Dodge/Plymouth

• TSi
• Technica (this was a narrowbody package without intercooler)

Europe

2.0 L 4G63 engine with MHI TC06-11A turbocharger, apart from GSR-VR which has 2.6 L 4G54 engine with TD05-12A TC.

• EX II - flatbody with intercooler
• EX - luxury version
• Turbo - base model

With the exception of Australia, many models were available as either narrowbody or widebody shell styles.

1987 Chrysler Conquest

Motorsports

Mitsubishi Starion (lightly modified)

The Starion was a prominent competitor in motorsports up to International level during the 1980s and performed well on the circuit in Group A and Group N races of the era. Andy McLennan driving a Simmons drums sponsored Starion was very successful, picking up many race wins and a Monroe championship, this against the semi works car of Colin Blower. In Holland, John Hugenholtz won the over 2L class in the Dutch Championship, with the Colin Blower-prepared Mitsubishi Dealers car. In the United States, the Starion became best known for successes in endurance racing. Starions from Dave Wolin's Team Mitsubishi, with turbocharged 2.6 L G54B engines built by noted Lotus engine guru Dave Vegher, captured the prestigious "Longest Day of Nelson Ledges" 24 hour endurance race four years running from 1984 through 1987. Team Mitsubishi Starions also won the Sports Car Club of America (SCCA) U.S. Endurance Championships three of those four years, competing against the fully factory-backed (Wolin's team was only partially sponsored by Mitsubishi) efforts from Chrysler, Audi, Nissan and Mazda. Although not commonly seen in modern motorsports, a number are still raced on both circuit and in special stage rally events, usually by privateers.

Starion 4WD

The Starion was not very successful off-road, but found victory in Group A World Rally Championships and Asia Pacific Rally Championships during 1987 and 1988. An all wheel drive version of the Starion was also produced for Group B specifications (one of the few Japanese automobile manufacturers to enter this class), but after an encouraging start as a prototype, it was not homologated before the FIA banned Group B cars for safety reasons. The Starion was converted to all wheel drive by adding a strengthened transfer case from a Pajero behind the transmission. This configuration allowed the engine to be situated well back in the chassis, for improved front/rear weight distribution compared to the Audi Quattro, whose configuration required the engine to be far forward in the car. Although the wheelbase did not change, the use of regular headlights rather than the production model's pop-up headlights allowed the nose to be six inches shorter, as well as saving several pounds in weight. Further weight was saved by the use of carbon fiber for the driveshafts, sumpguard, and lower arms of the suspension, and fiberglass for the hood (bonnet), tailgate, door skins, fenders, bumpers and spoilers, resulting in a final weight of less than 1,000 kg (2,200 lb), lighter than the Audi Quattro. The car was developed with a turbocharged and intercooled version of Mitsubishi's 2.0 L fuel injected engine, but the final goal was to use a turbocharged and intercooled 261 kW (355 PS; 350 hp) version of the Sirius Dash engine that Mitsubishi announced at the 1983 Tokyo Motor Show, which switched electronically at 2500 rpm from one inlet valve per cylinder to two. The car was campaigned for Mitsubishi by Team Ralliart in Essex, Great Britain, under rally veteran Andrew Cowan and engineer Alan Wilkinson, who had developed the Audi Quattro for Audi Sport UK.

Major results circuit

Team Mitsubishi Starion winning the 1985 Longest Day of Nelson Ledges, 24 hour race, despite heavy rollover crash damage (Note the chicken wire "windshield").

1987 Escort Endurance Series Championship-winning Team Mitsubishi Starion ESI-R.

International

• 1984 Australian Production Car Champion
• 1984 SCCA Nelson Ledges 24 Hour Race 1st
• 1984 SCCA Playboy Endurance Championship 1st
• 1984 Silverstone Finale 1st
• 1985 British Saloon Car Championship 2nd in championship
• 1985 Guia Race in Macau Grand Prix 3rd
• 1985 Guia Race in Macau Grand Prix 4th
• 1985 SCCA Nelson Ledges 24 Hour Race 1st, Despite heavy rollover crash damage.
• 1985 SCCA Playboy Endurance Championship 1st
• 1986 SCCA Escort Endurance Championship 2nd
• 1986 SCCA Nelson Ledges 24 Hour Race 1st
• 1986 SCCA Showroom Stock A National Championship 1st
• 1986 Dutch National Touring Car Championship 1st
• 1987 SCCA Escort Endurance Championship 1st
• 1987 SCCA Nelson Ledges 24 Hour Race 1st
• 1988 SCCA Showroom Stock A National Championship 1st
• 1990 SCCA Showroom Stock A National Championship 1st

Japan

• 1985 Inter TEC (Japanese Touring Car Championship (JTC)) 4th
• 1986 SUGO Group A 300 km Race (JTC) 3rd
• 1986 Race de Nippon Tsukuba (JTC) 1st
• 1986 Suzaka 300 km Race (JTC) 2nd
• 1986 All Japan Touring Car Championship 2nd in championship
• 1987 All Japan Touring Car Race (JTC) 1st
• 1987 GHiland Touring Car 300 km Race (JTC) 1st
• 1987 All Japan Touring Car Championship 3rd in championship
• 1988 Hiland Touring Car 300 km Race (JTC) 2nd

Major results rally

Starion 4WD (1984–1986)

• 1983 Paris-Dakar Rally 1st in Experimental Class
• 1984 Milles Piste Rally (French Rally Championship) 1st in Prototype Category
• 1986 Hong Kong-Beijing Rally 2nd

• 1987 Qutar Rally (Middle East Rally Rally Côte d'Ivoire (World Rally Championship) 4th
• 1987 Himalayan Rally 1st
• 1987 Oman Rally (Middle East Rally Championship) 3rd
• 1988 Scottish Rally (British Rally Championship)
• 1988 British Open Rally Championship 1st (Pentti Airikkala/Terry Harryman)

Further reading

• Clarke, R.M. (2001). Starion & Conquest Performance Portfolio 1982-90. Brooklands Books; illustrated edition. ISBN 978-1855205710.