Mitsubishi 4J12 engine
This engine, like all other J-marked engines, belongs to a new range of fully alloyed units. The main goal of their creation is to reduce CO2 emissions, but in fact, motors have a lot of advantages.
J engines
J-brand engines are often compared to the B-brand engines, their forefathers. However, there is a tangible difference between them - changing DOHC to SOHC and adding VVL technology. In addition, the J-series engines are equipped with Start-Stop and EGR systems, which make them even more environmentally friendly. The engines of the new series are installed on the 10th generation Lancer, Mitsubishi Outlander, ACX and others.
So, on the Outlander XL supplied to our market, the engine remains the same - it is 4B12, with a volume of 2,4 liters. But on modifications for other markets, including American and native Japanese, the crossover was already equipped with a single-shaft 4j12. The new engine with a modified intake valve stroke produced the same 167 hp.
Specifications 4J12
| engine's type | Inline 4-cylinder SOHC 16v, MIVEC |
|---|---|
| Displacement | 2,4 L (2,360 cc) |
| Possibility of shaft boring | 88 mm |
| Stroke | 97 mm |
| Compression ratio | 10,5: 1 |
| Fuel system | Electronic control MPI |
| Peak power | 124 kW (168,6 hp) at 6000 rpm |
| peak torque | 220 Nm (162,3 ft. lb) at 4200 rpm |
What is VVL technology
A reliable modern motor should function differently, depending on the operating conditions.
- In XX mode and at low speeds, the engine must work stably, but consume an insignificant percentage of fuel (the ideal option that engineers strive for is to ensure zero fuel consumption in these modes).
- At medium speeds, he should develop maximum KM.
- In high load mode, the power unit requires its maximum power, and fuel consumption is no longer so important.
Taking into account the described 3 conditions, designers come up with various technologies that are gradually approaching ideal parameters. One of the most important is the ability to combine engine power and torque parameters. In other words, it is the combined efficiency produced by the fuel mixture per unit time.
VVL technology involves changing the height of the valves, thereby providing control over the moment of opening and closing the intake of the fuel composition. Today, VVL is used by Mitsubishi in Mayvek technology.
