Mitsubishi 4J1 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.
| Mitsubishi 4J1 engine | |
|---|---|
 | |
| Overview | |
| Manufacturer | Mitsubishi Motors |
| Production | 2011–present |
| Layout | |
| Configuration | Naturally aspirated 4-cylinder |
| Displacement | 1.8–2.4 L (1,798–2,360 cc) |
| Cylinder bore | 86 mm (3.39 in) 88 mm (3.46 in) |
| Piston stroke | 77.4 mm (3.05 in) 86 mm (3.39 in) 97 mm (3.82 in) |
| Block material | Aluminium die cast |
| Head material | Aluminium die cast |
| Valvetrain | Direct acting SOHC, 16 valves, continuously variable MIVEC intake valve timing |
| Compression ratio | 10.5:1-10.7:1 |
| Combustion | |
| Fuel system | Multi-port fuel injection |
| Fuel type | Gasoline |
| Cooling system | Water-cooled |
| Output | |
| Power output | 102–124 kW (139–169 PS) |
| Torque output | 172–220 N⋅m (127–162 lb⋅ft) |
| Chronology | |
| Predecessor | Mitsubishi 4B1 engine |
4J10
Specifications
| Engine type | Inline 4-cylinder SOHC 16v, MIVEC |
| Displacement | 1.8 L (1,798 cc) |
| Bore x Stroke | 86 mm × 77.4 mm (3.39 in × 3.05 in) |
| Compression ratio | 10.7:1 |
| Fuel system | ECI multiple |
| Peak power | 102 kW (139 PS) at 6000 rpm |
| Peak torque | 172 N⋅m (127 lb⋅ft) at 4200 rpm |
Applications
- 2013 Mitsubishi RVR (Japan)
- 2017 Mitsubishi Grand Lancer (Taiwan)
- 2015 Mitsubishi Lancer
Characteristics
The new 4J10 MIVEC engine features the use of a next-generation MIVEC system that continuously regulates intake valve lift, opening duration and timing. The new MIVEC system together with improved combustion stability and a reduction in piston friction provide an improvement in fuel economy without any loss in engine performance (output and torque) over the 4B10 MIVEC engine (1.8-liter, inline-4, 16-valve DOHC).
4J11
Specifications
| Engine type | Inline 4-cylinder SOHC 16v, MIVEC |
| Displacement | 2.0 L (1,998 cc) |
| Bore x Stroke | 86 mm × 86 mm (3.39 in × 3.39 in) |
| Compression ratio | 10.5:1 |
| Fuel system | Electronically controlled MPI |
| Peak power | 110 kW (150 PS) at 6000 rpm |
| Peak torque | 195 N⋅m (144 lb⋅ft) at 4100-4200 rpm |
Applications
- 2013-2016 Mitsubishi Outlander
- 2020- Mitsubishi ASX
Characteristics
The 4J11 engine is the newly developed engine further improving the fuel economy. This engine can keep the same output performance as the conventional 4B11 engine by using the new MIVEC system.
4J12
Specifications
| Engine type | Inline 4-cylinder SOHC 16v, MIVEC |
| Displacement | 2.4 L (2,360 cc) |
| Bore x Stroke | 88 mm × 97 mm (3.5 in × 3.8 in) |
| Compression ratio | 10.5:1 |
| Fuel system | Electronically controlled MPI |
| Peak power | 124 kW (169 PS) at 6000 rpm |
| Peak torque | 220 N⋅m (162 lb⋅ft) at 4200 rpm |
Applications
- 2016 Mitsubishi Outlander (Only vehicles for South Africa and Argentina)
- 2016 - present Mitsubishi Outlander (ES, SE, SEL Trims in United States and Puerto Rico)
- 2013 - 2017 Mitsubishi Outlander (Australia)
Characteristics
"Eco friendly" replacement for 4B12.
