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| Manufacturer | Mitsubishi Motors |
|---|---|
| Type | |
| Production | 1991-2007 |
| Block alloy | Cast iron |
The Mitsubishi 4G9 engine is a series of
Contents |
4G91
The 4G91 uses a 78.4 mm bore and 77.5 mm stroke for a total displacement of 1.5 litres. With a 9.5:1 compression ratio and DOHC, four-valve-per-cylinder head and multi-point EFI, this engine produces 84 kW (114 PS; 113 bhp) at 6000 rpm and 135 N·m (100 ft·lbf) at 5000 rpm
Applications
4G92
The 4G92 displaces 1.6 L (1597 cc). First appeared in late 1991 Japanese spec Mirage RS and Super R in DOHC form, it is basically bored out to 81 mm and tuned version of the 4G91 producing 145 hp (108 kW). Later was introduced fuel-efficient SOHC version. But 4G92 is best known of its high-performance MIVEC equipped DOHC version, which fully replaced "ordinary" DOHC in 1993. Power output raised as high as 172 hp (128 kW), as found in the Mirage Cyborg-ZR and JDM ’92 Lancer MR, making it one of the most powerful 1.6 L N/A engines. A Modular Displacement (MD) version of the 4G92 MIVEC was also produced – MD is Mitsubishi's cylinder deactivation system which helps improve fuel consumption.
4G92P SOHC 16 Valve
- Total Displacement - 1597cc
- Bore - 81.0mm
- Stroke - 77.5mm
- Compression Ratio - 10:1
- Maximum Output*1 - 83 kW (113 PS; 111 bhp) @ 6,000 rpm & 137 N·m (101 ft·lbf) @ 5,000 rpm
- Maximum Output*2 - 69 kW (94 PS; 93 bhp) @ 5,500 rpm & 135 N·m (100 ft·lbf) @ 4,000 rpm
*1: Early European and JDM versions with 20°/42° intake and 54°/2° exhaust valve timing *2: General export and later European versions with 14°/58° intake and 52°/16° exhaust valve timing
4G92 DOHC 16 Valve
- Total Displacement - 1597cc
- Bore - 81.0mm
- Stroke - 77.5mm
- Compression Ratio - 11:1
- Maximum Output - 108 kW (147 PS; 145 bhp) @ 7000 rpm
- Maximum Torque - 149 N·m (110 ft·lbf) @ 4500 rpm
4G92-MIVEC DOHC 16 Valve
- Total Displacement - 1597cc
- Bore - 81.0mm
- Stroke - 77.5mm
- Compression Ratio - 11:1
- Maximum Output - 128 kW (174 PS; 172 bhp) @ 7,500 rpm
- Maximum Torque - 167 N·m (123 ft·lbf) @ 7,000 rpm
Applications
4G93
The 4G93 is available in both SOHC and DOHC versions. Turbocharged variants are also produced. The 4G93 was the first modern gasoline direct injection engine on its introduction in August 1996, and Mitsubishi produced over a million GDI engines. The SOHC 4G93 provides 86 kW (117 PS; 115 bhp) at 5500 rpm and redlines at 6500 rpm. The DOHC 4G93 GDI has 103 kW (140 PS; 138 bhp) at 6000 rpm and redline at 7600 rpm.
4G93P SOHC 16 Valve
- Electronic Controlled Multi-point Injection (MPI)
- Total Displacement - 1834cc
- Bore - 81.0mm
- Stroke - 89.0mm
- Compression Ratio - 9.5:1
- Maximum Output - 86 kW (117 PS; 115 bhp) @ 5,500 rpm
- Maximum Torque - 161 N·m (119 ft·lbf) @ 4,500 rpm
4G93 DOHC 16 Valve
- Gasoline Direct Injection (GDI)
- Total Displacement - 1834cc
- Bore - 81.0mm
- Stroke - 89.0mm
- Compression Ratio - 12:1
- Maximum Output - 96 kW (131 PS; 129 bhp) / 103 kW (140 PS; 138 bhp) @ 6,000 rpm
- Maximum Torque - 177 N·m (131 ft·lbf) @ 3,750 rpm / 181 N·m (133 ft·lbf) @ 3,500 rpm
4G93 DOHC 16 Valve Turbocharged
- TD04 turbocharger variant
- Gasoline Direct Injection (GDI)
- Total Displacement - 1834cc
- Bore - 81.0mm
- Stroke - 89.0mm
- Compression Ratio - 10:1.
- Maximum Output - 141 kW (192 PS; 189 bhp) @ 5,500 rpm
- Maximum Torque - 270 N·m (200 ft·lbf) @ 3,500 rpm
Applications
- Mitsubishi Galant
- Mitsubishi Legnum
- Mitsubishi Aspire
- Mitsubishi RVR
- Mitsubishi Pajero iO
- Mitsubishi Carisma
- Mitsubishi Space Star
- Mitsubishi Lancer
- Mitsubishi Lancer GSR
- Mitsubishi Colt
- Proton Satria GTi
- Proton Putra
- Proton Wira
- Volvo S40
- Volvo V40
4G94
The 4G94 is a 2.0 L version built in Japan, used in the Mitsubishi Lancer. Bore is 81.5 mm and stroke is 95.8 mm, with a compression ratio of 9:5:1. Output is 89 kW (121 PS; 119 bhp) at 5500 rpm with 176 N·m (130 ft·lbf) of torque at 4250 rpm. It has a cast iron engine block with MPFI (fuel injection) and an aluminum SOHC cylinder head with forged steel connecting rods and four valves per cylinder.
See also
References
- "The Mitsubishi 4G9x Engine Guide", Michael Knowling, Autospeed, issue 389, July 17, 2006
- "GDI engine production tops 1,000,000 unit mark", Mitsubishi Motors press release, September 11, 2001
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