Mitsubishi 4J1 engine

Mitsubishi 4J1 engine
Overview
ManufacturerMitsubishi Motors
Production2011–present
Layout
ConfigurationNaturally aspirated 4-cylinder
Displacement1.8–2.4 L (1,798–2,360 cc)
Cylinder bore86 mm (3.39 in)
88 mm (3.46 in)
Piston stroke77.4 mm (3.05 in)
86 mm (3.39 in)
97 mm (3.82 in)
Cylinder block materialAluminium die cast
Cylinder head materialAluminium die cast
ValvetrainDirect acting SOHC, 16 valves, continuously variable MIVEC intake valve timing
Compression ratio10.5:1-10.7:1
Combustion
Fuel systemMulti-port fuel injection
Fuel typeGasoline
Cooling systemWater-cooled
Output
Power output102–124 kW (139–169 PS)
Torque output172–220 N⋅m (127–162 lb⋅ft)
Chronology
PredecessorMitsubishi 4B1 engine

The Mitsubishi 4J1 engine is a range of all-alloy straight-4 engines. The main goal was declared as reduction on-road CO2 emission on new vehicles.[1] According to cars specifications fuel consumption also was improved. Comparing to previous engine series (4B1) valvetrain configuration was changed from DOHC to SOHC, Variable valve lift (VVL) technology added. The engine usually is paired with the ecological features like Start-Stop system and EGR. That engine mostly is appearing in the cars Lancer X, ASX, Outlander on several markets across Japan, Europe and Latin America.


  1. ^ "Press Release | News・Events | MITSUBISHI MOTORS".