Mitsubishi Sirius engine

The Mitsubishi Sirius or 4G6 engine is the name of one of Mitsubishi Motors' four series of inline 4 automobile engines, along with Astron, Orion, and Saturn.

4G61

The 4G61 displaces 1595 cc (82.3 x 75.0 mm bore/stroke). This engine was always DOHC 16-valve and used either Multi-point (MPFI) or Electronic Control (ECFI) fuel injection. A turbocharged version was also produced for the Mirage and Lancer. The 4G61 does not have balance shafts like the other 4G6x motors. Instead, it has different components, some of which can be used on the "Silent Shaft" engine.

Performance

• 4G61 91kW-124HP/6500 142Nm/5000
• 4G61T (USA/Canada only) 99kW-135HP/6000 191Nm/3000
• 4G61T (Japan) 160HP-117.68kW/6000 220.65Nm/2500

Applications

• 1988–1992 Mitsubishi Mirage / Mitsubishi Colt (MPFI)
• 1988–1992 Dodge Colt / Plymouth Colt
• 1988–1992 Eagle Summit
• 1992–1995 Hyundai Elantra

4G62

The larger 1.8 L 4G62 was an DOHC 16-valve unit for longitudinal rear-wheel drive and all-wheel drive use. With an 80.6 x 88.0 mm bore / stroke, it displaced 1795 cc.

Applications

• 1983–1989 Mitsubishi Cordia
• 1988 Mitsubishi Tredia
• 1984-1986 Mitsubishi L300 (Australia - Also known as the Mitsubishi Express)
• 1993-1994 Mitsubishi Lancer GSR

4G63

The 4G63 was a 1997 cc version. (85 mm Bore x 88 mm Stroke) SOHC and DOHC were produced. The DOHC version was introduced in 1987 in the Japanese market Galant VR-4 and came turbocharged or naturally aspirated. It is found in various models including the 1988-92 Galant VR-4 and the U.S. market 1990-1999 Eclipse, as well as the Mitsubishi Lancer Evolution I-IX.

The SOHC version was used in Mitsubishi Galant models until 1993. It has 76 kW of output and 157 NM of torque at 4750 rpm.

Also the SOHC version is produced until the late 90s and early 2000 and it is used in Mitsubishi cars like the Montero and the 2.0L 2-door Pajero with an output of 101kW at 4700 rpm. Also the N33 and N83 Spacewagon(UK market) in single cam 16 valve format.

The Mitsubishi Eclipse, Eagle Talon and Plymouth Laser introduced the DOHC turbocharged intercooled version to the U.S. in 1989 through Diamond Star Motors, a joint venture between Mitsubishi Motors and the Chrysler Corporation. From 1990 to late April 1992 came beefier rods and the use of 6 bolts to secure the flywheel to the crankshaft; May 1992 to 2006 Evolution versions have lighter rods and use 7 bolts to secure the flywheel to the crankshaft. They are referred to as the "six bolt" and "seven bolt" engines, respectively.

Output for the 2003 Japanese/US Mitsubishi Lancer Evolution is 271 hp (202 kW) at 6500 rpm with 273 ft·lbf (370 N·m) of torque at 3500 rpm. It has a cast iron engine block and aluminum DOHC cylinder head. It uses multi-point fuel injection, has 4 valves per cylinder, is turbocharged and intercooled and features forged steel connecting rods.

In the United Kingdom, a special Lancer Evolution, the FQ-400, produces 302.13 kW (405.2 hp), from a 4G63 engine. At 202.6 hp (151.3 kW) per liter, it has the highest specific output per liter of any production engine.

Racing

Its turbocharged variant, 4G63T (also sometimes referred to simply as the 4G63), has powered Mitsubishi vehicles in World Rally Championships for years in the Mitsubishi Galant VR-4, Lancer Evolution, Carisma GT and Lancer WRC04. It was the powerplant of the Lancer Evolution when Tommi Mäkinen won his four sequential WRC championships in his Lancer.

Applications

• 1983-1998 Mitsubishi Chariot
• 1984–1987 Dodge Colt Vista
• 1987-1992 Hyundai Stellar
• 1988 Mitsubishi Cordia
• 1988 Mitsubishi Tredia
• 1988–1992 Dodge Colt Vista
• 1989–1992 Mitsubishi Galant
• 1989–1992 US-spec Mitsubishi Galant
• 1990–1999 Mitsubishi Eclipse
• 1990–1998 Eagle Talon
• 1990–1994 Plymouth Laser
• 1982–1990 Mitsubishi Starion (Australia)
• 1992–1998 Hyundai Sonata
• 1986-1998 Hyundai Grandeur
• 1993-1998 Mitsubishi Montero
• 1994–1998 Mitsubishi RVR X3 Turbo
• 1994-1998 Mitsubishi Delica 2WD version (Japan)
• 1996-1999 Proton Perdana sei
• 1992-2006 Mitsubishi Lancer Evolution
• 2001-2006 Mitsubishi Airtrek Turbo
• 2001-2006 Mitsubishi Outlander Turbo
• 2004-present Brilliance BS6

4G64

The longitudinal 4G64 is the second largest variant, at (2350 cc). Early models were 8-valve SOHC, but a later 16-valve SOHC and DOHC version was also produced. All used MPFI with an 86.5 mm bore and 100 mm stroke. The 4G64 was also available with gasoline direct injection. The version used in the Chrysler Sebring/Stratus coupes produced 152 hp (110 kW) at 5500 rpm with 162 ft·lbf (214 N·m) of torque at 4000 rpm. The Chrysler version features fracture-split forged powder metal connecting rods. The 4G64 is an interference motor like the 4G63, however, the early 8-valve 4G64 is a non interference engine.

Applications

• 1987–1990 Mitsubishi Sapporo
• 1988–1996 Mitsubishi Van
• 1990–1992 Mitsubishi L200
• 1990–1996 Mitsubishi Mighty Max
• 1986-1998 Hyundai Grandeur
• 1993-1997 Mitsubishi Expo
• 1994–2003 Mitsubishi Galant
• 1996–1998 Mitsubishi Magna
• 1994–2006 Mitsubishi Spacegear (2WD Version)
• 1996–1999 Mitsubishi Eclipse Spyder GS
• 2000–2005 Mitsubishi Eclipse RS & GS
• 2003 Mitsubishi Outlander
• 2005 Mitsubishi Zinger
• 1989–1991 Hyundai Sonata
• 1990–1992 Dodge Ram 50
• 2001–2005 Chrysler Sebring coupe/Dodge Stratus coupe
• 2004-present Brilliance BS6
• 2008-present Chery V5
• 2006-present Great Wall Hover
• 2006-present Great Wall Hover Pi

4G67

The 16-valve DOHC 4G67 displaced 1836 cc. Bore x Stroke [mm]: 81.5 x 88

Applications

• Mitsubishi Mirage
• Mitsubishi Galant
• Mitsubishi Lancer
• Hyundai Elantra

4G69

The 4G69 is a 2378 cc version built in Shiga, Japan. Bore is 87 mm and stroke is 100 mm. Output is 162 hp (119 kW) at 5750 rpm (160 in the Sportback Wagon) with 162 ft·lbf (219 N·m) of torque at 4000 rpm. It has a cast iron engine block and aluminum SOHC cylinder heads. It uses multi-point fuel injection, has 4 valves per cylinder with roller followers and features forged steel connecting rods, a one-piece cast camshaft, and a cast aluminum intake manifold. The 4G69 incorporates Mitsubishi's MIVEC Variable Valve Timing technology. The 4G69 is an interference motor like the 4G63 and 4G64.

Applications

• 2003–present Mitsubishi Grandis
• 2004–2006 Mitsubishi Lancer (Ralliart and Sportback Wagon only)
• 2004–present Mitsubishi Galant
• 2004–present Mitsubishi Outlander
• 2006–present Mitsubishi Eclipse

NB: From 2005 a slightly detuned version (115kW, 220Nm) is used across the entire Lancer range in Australia.

See also

• List of Mitsubishi engines

References

• "Engine Epic Part 8 - Mitsubishi Engines", Michael Knowling, Autospeed, issue 48, 21 September, 1999