Mitsubishi 4G9 Engine - 4G92

The 4G92 displaces 1.6 L (1,597 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 litre naturally aspirated 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 - 1,597 cc
• Bore - 81.0 mm
• Stroke - 77.5 mm
• Compression Ratio - 10:1
• Maximum Output (1) - 83 kW (113 PS; 111 bhp) at 6,000 rpm, and 137 N·m (101 ft·lbf) at 5,000 rpm
• Maximum Output (2) - 69 kW (94 PS; 93 bhp) at 5,500 rpm, and 135 N·m (100 ft·lbf) at 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 - 1,597 cc
• Bore - 81.0 mm
• Stroke - 77.5 mm
• Compression Ratio - 11:1
• Maximum Output - 108 kW (147 PS; 145 bhp) at 7,000 rpm
• Maximum Torque - 149 N·m (110 ft·lbf) at 4,500 rpm

4G92-MIVEC DOHC 16 Valve

• Total Displacement - 1,597 cc
• Bore - 81.0 mm
• Stroke - 77.5 mm
• Compression Ratio - 11:1
• Maximum Output - 128 kW (174 PS; 172 bhp) at 7,500 rpm
• Maximum Torque - 167 N·m (123 ft·lbf) at 7,000 rpm

Applications

• Mitsubishi Lancer
• Mitsubishi Mirage
• Proton Satria
• Proton Wira
• Mitsubishi Carisma