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Mitsubishi Sirius Engine
The Mitsubishi Sirius or 4G6/4D6 engine is the name of one of Mitsubishi Motors' four series of inline-four automobile engines, along with Astron, Orion, and Saturn. The 4G6 gasoline engines were the favoured performance variant for Mitsubishi. The ''4G61T'' powered their Colt Turbo, while the ''4G63T'', first introduced in the 1980 Lancer EX 2000 Turbo, went on to see service in the Sapporo and Starion coupés during the so-called "turbo era" of the 1980s, before creating for itself an illustrious motorsport heritage as the powerplant under the hood of the World Rally Championship-winning Lancer Evolution. A UK-market Evo known as the FQ400 had a version of the ''Sirius'', making it the most powerful car ever sold by Mitsubishi. The 4D6 diesel engines supplemented the larger 4D5. Bore pitch is 93 mm. 4G61 (1.6 liters) The 4G61 displaces with bore/ full length stroke of . This engine was always DOHC 16-valve and used either Multi-point (MPFI) or Electronic Con ...
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Mitsubishi Motors
is a Japanese Multinational corporation, multinational Automotive industry, automobile manufacturer headquartered in Minato, Tokyo, Japan.Corporate Profile
, Mitsubishi Motors website, 19 June 2008
In 2011, Mitsubishi Motors was the sixth-largest Japanese automaker and the 19th-largest worldwide by production. Since October 2016, Mitsubishi has been one-third (34%) owned by Nissan, and included in the Renault–Nissan–Mitsubishi Alliance. Besides being part of the Renault–Nissan–Mitsubishi Alliance, it is also a part of Mitsubishi Group, Mitsubishi ''keiretsu'', formerly the biggest industrial group in Japan. The company was originally formed in 1970 from the automotive division of Mitsubishi Heavy Industries.
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Mitsubishi Astron Engine
The Mitsubishi Astron or 4G5/4D5 engine, is a series of Inline-four engine, straight-four internal combustion engines first built by Mitsubishi Motors in 1972. Engine displacement ranged from 1.8 to 2.6 litres, making it one of the largest four-cylinder engines of its time. Design It employed a hemispherical cylinder head, roller chain, chain-driven SOHC, single overhead camshaft (SOHC) and eight poppet valve, valves (two per cylinder). United States passenger car versions had a small secondary intake valve referred to as the "Jet Valve". This valve induced swirl in the intake charge, enabling the use of leaner fuel/air mixtures for lower emissions. It was designed as a cartridge containing the valve spring and seat which simply screwed into a threaded hole in the head, similar to a spark plug but inside the cam cover. The rocker arms for the intake valve were widened on the valve end to accommodate the cartridge, which was equipped with a very soft valve spring in order to avoid we ...
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Turbocharged
In an internal combustion engine, a turbocharger (also known as a turbo or a turbosupercharger) is a forced induction device that is powered by the flow of exhaust gases. It uses this energy to compress the intake air, forcing more air into the engine in order to produce more power for a given engine displacement, displacement.
Turbochargers are distinguished from superchargers in that a turbocharger is powered by the kinetic energy of the exhaust gases, whereas a supercharger is mechanically powered (usually by a belt from the engine's crankshaft). However, up until the mid-20th century, a turbocharger was called a "turbosupercharger" and was considered a type of supercharger.


History

Prior to the invention of the turbocharger, forced induction was only possible using mechanically-powered superchargers ...
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Fuel Injection
Fuel injection is the introduction of fuel in an internal combustion engine, most commonly automotive engines, by the means of a fuel injector. This article focuses on fuel injection in reciprocating piston and Wankel rotary engines. All compression-ignition engines (e.g. diesel engines), and many spark-ignition engines (i.e. petrol (gasoline) engines, such as Otto or Wankel), use fuel injection of one kind or another. Mass-produced diesel engines for passenger cars (such as the Mercedes-Benz OM 138) became available in the late 1930s and early 1940s, being the first fuel-injected engines for passenger car use. In passenger car petrol engines, fuel injection was introduced in the early 1950s and gradually gained prevalence until it had largely replaced carburetors by the early 1990s. The primary difference between carburetion and fuel injection is that fuel injection atomizes the fuel through a small nozzle under high pressure, while carburetion relies on suction crea ...
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Multi-valve
A multi-valve or multivalve Four-stroke engine, four-stroke internal combustion engine is one where each Cylinder (engine), cylinder has ''more than two'' poppet valve, valves – more than the minimum required of one of each, for the purposes of air and fuel intake, and Exhaust system, venting exhaust gases. Multi-valve engines were conceived to improve one or both of these, often called "better breathing", and with the added benefit of more valves that are smaller, thus having less mass in motion (per individual valve and spring), may also be able to operate at higher revolutions per minute (RPM) than a two-valve engine, delivering even more intake an/or exhaust per unit of time, thus potentially more power (physics), power. Multi-valve rationale Multi-valve engine design A multi-valve engine design has three, four, or five poppet valves per cylinder, to achieve greater performance. In automotive engineering, any four-stroke internal combustion engine needs at least two v ...
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Bore Pitch
In a piston engine, the bore (or cylinder bore) is the diameter of each cylinder. Engine displacement is calculated based on bore, stroke length and the number of cylinders: displacement = The stroke ratio, determined by dividing the bore by the stroke, traditionally indicated whether an engine was designed for power at high engine speeds (rpm) or torque at lower engine speeds. The term "bore" can also be applied to the bore of a locomotive cylinder or steam engine pistons. In steam locomotives The term bore also applies to the cylinder of a steam locomotive or steam engine. Bore pitch Bore pitch is the distance between the centerline of a cylinder bore to the centerline of the next cylinder bore adjacent to it in an internal combustion engine. It's also referred to as the "mean cylinder width", "bore spacing", "bore center distance" and "cylinder spacing". The bore pitch is always larger than the inside diameter of the cylinder (the bore and piston diameter) since i ...
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United Kingdom
The United Kingdom of Great Britain and Northern Ireland, commonly known as the United Kingdom (UK) or Britain, is a country in Northwestern Europe, off the coast of European mainland, the continental mainland. It comprises England, Scotland, Wales and Northern Ireland. The UK includes the island of Great Britain, the north-eastern part of the island of Ireland, and most of List of islands of the United Kingdom, the smaller islands within the British Isles, covering . Northern Ireland shares Republic of Ireland–United Kingdom border, a land border with the Republic of Ireland; otherwise, the UK is surrounded by the Atlantic Ocean, the North Sea, the English Channel, the Celtic Sea and the Irish Sea. It maintains sovereignty over the British Overseas Territories, which are located across various oceans and seas globally. The UK had an estimated population of over 68.2 million people in 2023. The capital and largest city of both England and the UK is London. The cities o ...
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Mitsubishi Lancer Evolution
The Mitsubishi Lancer Evolution, popularly referred to as the "Evo", is a sports sedan and rally car based on the Lancer that was manufactured by Japanese manufacturer Mitsubishi Motors from 1992 until 2016. There have been ten official versions to date, and the designation of each model is most commonly a Roman numeral. All generations use two-litre intercooled turbo inline four-cylinder engines and all-wheel drive systems."Development of Center-Differential Control System for High Performance Four-Wheel Drive Vehicles", Mitsubishi Motors Technology Review 2001, no.13, pp. 61–66 The Lancer was originally intended only for Japanese markets, but demand on the "grey import" market led the Evolution series to be offered through Ralliart dealer networks in the United Kingdom and in various European markets from around 1998. Mitsubishi decided to export the eighth generation Evolution to the United States in 2003 after witnessing the success Subaru had in that market the previous ...
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World Rally Championship
The World Rally Championship (abbreviated as WRC) is an international rallying series owned and governed by the Fédération Internationale de l'Automobile, FIA. Inaugurated in 1973, it is the oldest FIA world championship after Formula One. Each season lasts one calendar year, and typically consists of 13 three- to four-day rally events driven on surfaces ranging from gravel and tarmac to snow and ice. Each rally is usually split into 15–25 Special stage (rallying), special stages which are run against the clock on up to of closed roads. Separate championship titles are awarded to drivers, co-drivers and manufacturers. There are also two support championships, WRC2 and WRC3, which are contested on the same events and stages as the WRC, but with progressively lower maximum performance and running costs of the cars permitted. Junior WRC is also contested by younger drivers on five events of the World Rally Championship calendar. The championships World Rally Championshi ...
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Mitsubishi Starion
The Mitsubishi Starion is a two-door, turbocharged four-cylinder rear-wheel drive four-seat fastback sports car manufactured and marketed by Mitsubishi from 1982 until 1989 — with badge engineered variants marketed in North America as the Conquest, under the Chrysler, Dodge, and Plymouth brands. The Starion was one of the first modern Japanese turbocharged performance automobiles with electronic fuel injection. Overview Mitsubishi began marketing the Starion in 1982, during a period in which a number of Japanese grand tourer (GT) sports cars were available, including the Nissan Z cars, Mazda RX-7, Toyota Supra and to a lesser extent, the Honda Prelude, Isuzu Piazza and Subaru XT. The Starion was marketed in the US as the Mitsubishi Starion and badge engineered variants of it were marketed as the Dodge, Plymouth and Chrysler Conquest. In the UK it was sold as the Colt Starion. It was manufactured in two body configurations, a narrowbody and widebody; the narrower styl ...
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Mitsubishi Sapporo
The Mitsubishi Sapporo name has been used on two derivations of the Mitsubishi Galant: * 1978–1984 — This rear-wheel drive hardtop coupé was based on the third generation Galant. In Japan it was sold as the "Mitsubishi Galant Lambda", while European and South American export markets received it with the "Sapporo" label. In the US it was sold as Dodge Challenger and Plymouth Sapporo. It received a thorough facelift in 1980. * 1987–1990 — In the European market, the hardtop sedan version of the front-wheel drive fifth generation Galant was sold as the Sapporo, while in the US market it was badged Sigma. Mitsubishi Galant#hardtop File:Mitsubishi Sapporo 2000 GSL 1982 (15149987908).jpg, Coupe (1978–1984) File:Mitsubishi Sapporo front 20080301.jpg, Sedan (Europe, 1987–1990) References {{Mitsubishi cars 1960-79 Sapporo is a Cities designated by government ordinance of Japan, designated city in Hokkaido, Japan. Located in the southwest of Hokkaido, it lies wi ...
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Mitsubishi Lancer
The Mitsubishi Lancer is an automobile that was produced by the Japanese manufacturer Mitsubishi Motors from 1973 until 2024. The Lancer has been marketed as the Colt Lancer, Dodge Colt, Plymouth Colt, Chrysler Valiant Lancer, Chrysler Lancer, Eagle Summit, Hindustan Lancer, Soueast Lioncel, and Mitsubishi Mirage in various countries at different times, and has been sold as the Mitsubishi Galant Fortis in Japan since 2007. It has also been sold as Mitsubishi Lancer Fortis in Taiwan with a different facelift than the Galant Fortis. In Japan, it was sold at a specific retail chain called Car Plaza. Between its introduction in 1973 and 2008, over six million units were sold. There have been ten generations of Lancers. Mitsubishi ended production of the Lancer in August 2017 worldwide, with the exception of Taiwan. An extensive facelift was given to the car by Pininfarina's Chinese offices. Production in Taiwan ended in 2024, marking the end of the Lancer nameplate after 51 years ...
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