The 6G7 series or Cyclone V6 engine is a series of V6 piston engines from

Mitsubishi Motors is a Japanese multinational automobile manufacturer headquartered in Minato, Tokyo, Japan.SOHC and

DOHC An overhead camshaft (OHC) engine is a piston engine where the camshaft is located in the cylinder head above the combustion chamber. This contrasts with earlier overhead valve engines (OHV), where the camshaft is located below the combustion cha ...

, naturally aspirated and turbo charged layouts. While ''

MIVEC MIVEC (Mitsubishi Innovative Valve timing Electronic Control system) is the brand name of a variable valve timing (VVT) engine technology developed by Mitsubishi Motors. MIVEC, as with other similar systems, varies the timing of the intake and ex ...

variable valve timing In internal combustion engines, variable valve timing (VVT) is the process of altering the timing of a valve lift event, and is often used to improve performance, fuel economy or emissions. It is increasingly being used in combination with var ...

has also been implemented in some versions the 2.5, 3.0 and 3.5 L versions were also available with gasoline direct injection. This engine has been the flagship powerplant of the company except when they briefly built a V8 in 1999–2001. The staple of their high-end sedans, it was given twin-turbos for the

Mitsubishi GTO The Mitsubishi GTO is a front-engine, all-wheel/front-wheel drive grand touring/sports car manufactured and marketed by Mitsubishi from 1990 until 2000 over three different generations. Manufactured in a three-door hatchback coupé body style i ...

, and became the most powerful car ever built by the company at the time.

Bore and Stroke

6G71

The 6G71 model featured SOHC and produced at 5,500 rpm and at 4,500 rpm. It was installed with two valves per cylinder, and used Mitsubishi's ECI-Multi multiple port fuel injection fuel delivery system. The compression ratio was 8.9:1. An earlier version, with single-point fuel injection, only had at 5,000 rpm and at 4,000 rpm. A supercharger was installed and exclusive to the Debonair. It produces at 5,000 rpm and at 3,000 rpm. The compression ratio for the supercharged model is 8.0:1. The 6G71 engine was also converted to run on LPG, a version which was only available to the Debonair and mainly intended for commercial (

taxi A taxi, also known as a taxicab or simply a cab, is a type of vehicle for hire with a driver, used by a single passenger or small group of passengers, often for a non-shared ride. A taxicab conveys passengers between locations of their choic ...

) use.

Applications

* 1986–1990 Mitsubishi Galant * 1986–1992

Mitsubishi Debonair The is a four-door executive sedan introduced by Mitsubishi Motors in 1964 to serve as their flagship passenger vehicle in the Japanese market. The word "debonair" means gentle, courteous, suave, lighthearted, or nonchalant. __TOC__ Overvi ...

* 1990–1992

Mitsubishi Diamante The Mitsubishi Diamante is an automobile that was manufactured by Mitsubishi Motors from 1990 to 2005. The first series was a hardtop introduced to the public at the Tokyo Motor Show in 1989. It went on sale in Japan exclusively in May 1990 and w ...

/Mitsubishi Sigma

6G72

The 6G72 was manufactured in three different models which featured SOHC with 12-valves, SOHC with 24-valve, and

with 24-valves. The latest version was used in the Mitsubishi Eclipse GT and Galant. Output in 2004 was at 5500 rpm with of torque at 4000 rpm. In the older version, used in many Chrysler models since 1987 this V6 was a SOHC 12-valve developing at 5000 rpm and of torque at 3600 rpm. The Mitsubishi models were with a 3.0 Litre 6G72 engine SOHC 24-valve developing at 5000 rpm and of torque at 4000 rpm. For the MIVEC engine output is at 6000 rpm and at 4500 rpm. The SOHC 12-valve for the second generation of Pajero can provide and , the SOHC 24-valve can provide and . The DOHC 24-Valve was used in the Mitsubishi Debonair, 3000GT and Dodge Stealth producing and of torque with a 10.0:1 compression ratio in naturally aspirated form, and as much as and of torque in turbocharged form. The turbocharged variant had the lowest compression ratio at 8.0:1, with each bank of the V6 having its own independent turbocharger and intercooler. Turbo chargers were built by Mitsubishi.

Applications

* 1986–1992

* 1987–2000

Dodge Caravan The Dodge Caravan (and the long-wheelbase Dodge Grand Caravan) is a series of minivans that was manufactured by Chrysler from the 1984 to 2020 model years. The Dodge version of the Chrysler minivans, the Caravan was marketed as both a passenger v ...

Plymouth Voyager Plymouth Voyager is a nameplate for a range of vans that were marketed by the Plymouth division of Chrysler. From 1974 until 1983, the Voyager was a full-size van, sold as the counterpart of Dodge Sportsman (later the Dodge Ram Wagon). For 1984 ...

* 1988–1989 Chrysler New Yorker * 1988–1990

Dodge Raider The Further information on the Mitsubishi P ...

* 1988–1990

Mitsubishi Sigma Mitsubishi Sigma is a model name that was used by the Japanese automobile manufacturer Mitsubishi Motors between 1976 and 1996. Mitsubishi has utilized the "Sigma" name on several different vehicles based on Mitsubishi Galant and Mitsubishi Dia ...

* 1988–1993

Dodge Dynasty The Dodge Dynasty is a mid-size four-door sedan that was marketed by the Dodge division of Chrysler Corporation from the 1988 to 1993 model years. Serving as the direct successor of the Dodge 600 sedan, the Dynasty was slotted between the Dod ...

* 1988–2021

Mitsubishi Pajero The Further information on the Mitsubishi P ...

(a.k.a. Montero/Shogun) (Except GCC and Oceania now) * 1989–1995

Dodge Spirit The Dodge Spirit is a mid-size 5- or 6-passenger sedan that was introduced in January 1989 as a replacement for the similarly sized Dodge 600. The Spirit was Dodge's version of the Chrysler AA platform, a stretched variation of the Chrysler K ...

Plymouth Acclaim The Plymouth Acclaim is a mid-size sedan produced in the 1989 to 1995 model years. The Acclaim was Plymouth's updated replacement for both the similarly sized E-body Caravelle and the K-body Reliant. Badge engineering was employed to give Dodge ...

Chrysler Saratoga The Chrysler Saratoga is an automobile built by Chrysler. The nameplate was used from 1939 to 1952 and from 1957 to 1960 in the U.S. market, in Canada through 1965, and in Europe from 1989 to 1995. In the beginning, it was introduced as a sport lu ...

* 1990

Chrysler Town & Country The Chrysler Town & Country is a minivan that was manufactured and marketed by Chrysler from 1990 to the 2016 model years. The third of the Chrysler minivans introduced, the 1990 Town & Country shared its nameplate with the flagship Chrysler st ...

(early 1989 production only) * 1990–1991

Chrysler TC by Maserati Chrysler's TC by Maserati is a jointly developed car by Chrysler and Maserati. It was positioned as a grand tourer and introduced at the 1986 Los Angeles Auto Show. It is a "Q" body built on a modified second-generation Chrysler K platform. After ...

* 1990–1993

Dodge Daytona The Dodge Daytona is an automobile which was produced by the Chrysler Corporation under their Dodge division from 1984 until 1993. It was a front-wheel drive hatchback based on the Chrysler G platform, which was derived from the Chrysler K platfo ...

* 1990–1993

Dodge Ram 50 Dodge is an American brand of automobiles and a division of Stellantis, based in Auburn Hills, Michigan. Dodge vehicles have historically included performance cars, and for much of its existence Dodge was Chrysler's mid-priced brand above Plym ...

* 1990–1995

Chrysler LeBaron The Chrysler LeBaron, also known as the Imperial LeBaron, is a line of automobiles built by Chrysler from 1931-1941 and from 1955-1995. The model was introduced in 1931, with a body manufactured by LeBaron, and competed with other luxury cars o ...

* 1990–1996

Mitsubishi Mighty Max The is a group of autonomous Japanese multinational corporation, multinational companies in a variety of industries. Founded by Yatarō Iwasaki in 1870, the Mitsubishi Group historically descended from the Mitsubishi zaibatsu, a unified company ...

* 1990–1998

Hyundai Sonata The Hyundai Sonata is a mid-size car that has been manufactured by Hyundai since 1985. The first generation Sonata, which was introduced in 1985, was a facelifted Hyundai Stellar with an engine upgrade, and was withdrawn from the market in two ...

* 1990–1999

(a.k.a. Mitsubishi 3000GT, Dodge Stealth) * 1990–2002

* 1990–2006

Mitsubishi L200 The is a group of autonomous Japanese multinational companies in a variety of industries. Founded by Yatarō Iwasaki in 1870, the Mitsubishi Group historically descended from the Mitsubishi zaibatsu, a unified company which existed from 1870 ...

* 1991–1996 Dodge Stealth * 1991–1996 Mitsubishi Verada (Australia) * 1992–1994

Dodge Shadow The Dodge Shadow and Plymouth Sundance are economical 3-door and 5-door hatchbacks that were introduced for the 1987 model year by the Chrysler Corporation. For 1991, a 2-door convertible variant was added to the Shadow lineup; this bodystyle wa ...

Plymouth Sundance The Dodge Shadow and Plymouth Sundance are economical 3-door and 5-door hatchbacks that were introduced for the 1987 model year by the Chrysler Corporation. For 1991, a 2-door convertible variant was added to the Shadow lineup; this bodystyle w ...

* 1993–2001

Mitsubishi Magna The Mitsubishi Magna is a mid-size car that was produced over three generations between 1985 and 2005 by Mitsubishi Motors Australia Limited (MMAL). Developed as a replacement for the Mitsubishi Sigma, each Magna generation derived from Japane ...

(Australia) * 1994–2007

Mitsubishi Delica The is a range of vans and pickup trucks designed and built by the Japanese automaker Mitsubishi Motors since 1968. It was originally based on a cabover van and pickup truck introduced the previous year, also called the Delica, its name a cont ...

* 1997–2007

Mitsubishi Pajero Sport The Mitsubishi Pajero Sport is a mid-size SUV produced by the Japanese manufacturer Mitsubishi Motors using the Pajero nameplate since 1996 that has spanned over three generations and based on the Triton pickup truck. Mitsubishi has formerly u ...

(a.k.a. Montero Sport/aka Challenger in Australia) * 1999–2003 Mitsubishi Galant * 1991-1999

Mitsubishi 3000GT The Mitsubishi GTO is a front-engine, all-wheel/front-wheel drive grand touring/sports car manufactured and marketed by Mitsubishi from 1990 until 2000 over three different generations. Manufactured in a three-door hatchback coupé body style i ...

* 2000–2005

Mitsubishi Eclipse The Mitsubishi Eclipse is a sport compact car that was produced by Mitsubishi in four generations from 1989 until 2011. A convertible body style was added during the 1996 model year. The first two generations share the automobile platform and ...

* 2001–2005

Dodge Stratus The Dodge Stratus is a mid-size car that was introduced by Dodge in December 1994 and was based on the 4-door sedan Chrysler JA platform. The Stratus, Plymouth Breeze, and Chrysler Cirrus were all on ''Car and Driver'' magazine's Ten Best li ...

Chrysler Sebring The Chrysler Sebring ( ) is a line of mid-size automobiles that was sold from 1995 through 2010 by Chrysler. Three generations of convertibles, two generations of sedans, and two generations of coupes were produced. Although the coupe shared the ...

Coupe * 2008–2011

(China)/ Chrysler Grand Voyager (China)

6G73

The 6G73 is a 24-valve SOHC design with two valves running off a single cam lobe on the exhaust valves using a forked

rocker arm In the context of an internal combustion engine, a rocker arm is a valvetrain component that typically transfers the motion of a pushrod to the corresponding intake/exhaust valve. Rocker arms in automobiles are typically made from stamped steel ...

and each intake valve actuated with two cam lobes, with a smaller bore than the 3.0 liter version of the same block. Bore and stroke are ; it is a 60-degree V6 and weighs around . The engine has low-profile cast aluminum heads which help it to fit into compact engine bays, while

pent-roof combustion chamber In engine design, the penta engine (or penta ''head'') is an arrangement of the upper portion of the cylinder and valves that is common in engines using four valves per cylinder. Among the advantages is a faster burn time of the air-fuel mix. It ...

s increase efficiency and make room for four valves per cylinder, arranged in a cross-flow pattern with a "tumble" intake port for both strong breathing and low emissions. Spark plugs are centered in the

combustion chamber A combustion chamber is part of an internal combustion engine in which the fuel/air mix is burned. For steam engines, the term has also been used for an extension of the firebox which is used to allow a more complete combustion process. Intern ...

s. The intake valves are in diameter while exhaust valves are . The SOHC 24 valve version of the 6G72 uses these same cylinder heads. A toothed timing belt is used. The output of 6G73 is at 5,900 rpm with of torque at 4,350 rpm.

Applications

* 1990–2002

* 1993–1996 Mitsubishi Galant * 1995–2000

Chrysler Cirrus The Chrysler Cirrus is a mid-sized 4-door notchback sedan introduced by Chrysler motors for the 1995 model year. Built on the Chrysler JA platform, the 4-door notchback sedan joined Chrysler's roster of "Cloud Car" models drawing their names f ...

* 1995–2000

Dodge Avenger The Dodge Avenger is a front-wheel drive, mid-sized sedan that was marketed by Dodge. The Avenger made its North American debut in 1994 for the 1995 model year as a coupe that was produced until 2000. The model name was reintroduced to the ...

6G74

The 6G74 is a 24-valve unit available with either SOHC, DOHC, or

DOHC. Output for the SOHC version varies from at 4,750 rpm with of torque at 3,750 rpm in the Pajero to the highest output of at 5,250 rpm with of torque at 4,500 rpm in the Australian-made Magna Sports, VR-X and Verada GTV/GTVi and at 5,500 rpm with of torque at 4,000 rpm in the Magna Ralliart. For the MIVEC, only available in the

Mitsubishi Pajero Evolution The Mitsubishi Pajero Evolution is an off-road competition car based on the Mitsubishi Pajero. It was specially designed to take part in the rally raids with the main objective of winning the Dakar Rally. In addition to those produced for competi ...

, the output is at 6,000 and at 4,500 rpm. It uses

Multi-port fuel injection Fuel injection is the introduction of fuel in an internal combustion engine, most commonly automotive engines, by the means of an injector. This article focuses on fuel injection in reciprocating piston and Wankel rotary engines. All comp ...

and uses

forged steel Forging is a manufacturing process involving the shaping of metal using localized compressive forces. The blows are delivered with a hammer (often a power hammer) or a die. Forging is often classified according to the temperature at which it ...

connecting rods. The gasoline direct injection version of the 6G74 was launched in April 1997 as the first GDI V6 engine ever produced. It differed from the basic 6G74 in many ways apart from its unique fuel injection system — it had a crown-curved rather than flat piston head, upright intake ports rather than angled, and a 10.4:1 rather than 10.0:1 compression ratio. Mitsubishi claimed 30 percent better fuel economy, a 30 percent reduction in emissions, and higher power outputs than diesels.

Applications

* 1992–1998

(Japan ) * 1993–2021

Mitsubishi Pajero The Further information on the Mitsubishi P ...

(a.k.a. Montero/Shogun)(Only available in GCC area now) * 1997–2004

* 1999–2001

Mitsubishi Proudia The is a luxury sedan manufactured by Mitsubishi Motors, positioned below the flagship Dignity limousine (itself a lengthened version of the Proudia) in the company's range. Its name is a portmanteau derived from the English word "proud" and ...

* 1999–2004

Mitsubishi Montero Sport The Mitsubishi Pajero Sport is a mid-size SUV produced by the Japanese manufacturer Mitsubishi Motors using the Pajero nameplate since 1996 that has spanned over three generations and based on the Triton pickup truck. Mitsubishi has formerly u ...

* 1999–2005

/Verada * 1999–2011

Mitsubishi Challenger The Mitsubishi Pajero Sport is a mid-size SUV produced by the Japanese manufacturer Mitsubishi Motors using the Pajero nameplate since 1996 that has spanned over three generations and based on the Triton pickup truck. Mitsubishi has formerly u ...

* 2005–2015 Mitsubishi L200/L200 Sportero (Japan, General Countries) * 2008–2015

Mitsubishi Triton The Mitsubishi Triton is a compact pickup truck produced by Mitsubishi Motors. In Japan, where it has only been sold intermittently and in small numbers, it was originally known as the Mitsubishi Forte and from 1991 as the Strada. In the Unite ...

(Japan Domestic, Thailand, Brazil and Middle East)

6G75

The 6G75's Output varies from and to and depending on application. In the interest of durability, the pistons are high-pressure castings attached to forged steel connecting rods that swing from a heat-treated forged steel crankshaft. Intended to be used with 95 RON fuel, lower octane fuels will be detected by the vehicle's knock sensors, and the engine detuned to compensate.

Specifications

* Engine Type: V type, single overhead camshaft * Bore x stroke: * Displacement: * Combustion chamber: pentroof type * Compression ratio: 10.5:1 (MIVEC), 10:1 (Non MIVEC) *

Firing order The firing order of an internal combustion engine is the sequence of ignition for the cylinders. In a spark ignition (e.g. gasoline/petrol) engine, the firing order corresponds to the order in which the spark plugs are operated. In a diesel engi ...

: sequential 1-2-3-4-5-6 * Lubrication system: Pressure feed, full-flow filtration * Lash adjusters on intake and exhaust * Fuel delivery system: Electronically controlled MFI *Fuel grade: Factory-tuned for 95 RON unleaded petrol * Ignition system: Electronically controlled 6-coil (non-distributor) * Lubrication system: Pressure feed, full-flow filtration * oil pump type: Trochoid type

Applications

* 2003–2021 Mitsubishi Pajero/Montero * 2004–2011

Mitsubishi Endeavor The Mitsubishi Endeavor is a mid-size crossover SUV built by Mitsubishi Motors at their manufacturing facility in Normal, Illinois from 2003 until 2011. Based on the PS platform, it was the first vehicle built under Mitsubishi's "Project America ...

* 2004–2009 Mitsubishi Galant * 2005–2008

Mitsubishi 380 The Mitsubishi 380 is a mid-size car that was produced between 2005 and 2008 by Mitsubishi Motors Australia. Available only as a sedan, it marked the end of Australian production by the Japanese manufacturer. The 380, given the model designatio ...

* 2006–2012

References

{{DEFAULTSORT:Mitsubishi 6g7 Engine 6G7 V6 engines 5. https://media.mitsubishicars.com/channels/2004-Galant/releases/d8fa6a4a-5172-57cd-7b04-a59f4b06fbf0 Gasoline engines by model

Bore and Stroke

6G71

Applications

6G72

Applications

6G73

Applications

6G74

Applications

6G75

Specifications

Applications

See also

References