The QR20DE powertrain does not represent anything outstanding. This is a conventional 2.0-liter engine with an aluminum BC and a short service life. According to the manufacturer, if you use the QR20DE unit sparingly, then its resource will reach 200 thousand kilometers. Unlike its predecessor, the SR20DE, the new QR20DE features individual ignition coils and an improved cylinder head. The IFGR system on the intake shaft was also added, and balance shafts began to be responsible for the smooth operation. Due to the lack of hydraulic lifters, it will be necessary to adjust the valve clearances every 100 thousand kilometers.
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Mitsubishi Libero
Mitsubishi Libero is a 5-door station wagon from Mitsubishi Motors, based on the Lancer model. The beginning of production is 1992. Initially, the model was equipped with front-wheel drive and 4WD and had an easy-to-remember original appearance. In 1997, the model underwent a restyling and became outwardly similar to Lancer Evolution. The changes also affected the power unit.
Engine QR20DE
Engine Mitsubishi 4G93
The 4G93 1834cc GDI engine has the following features. First, gasoline is not injected into the intake manifold, but directly into the combustion chamber. Secondly, the air is fed into the cylinder vertically from the top, and not from the side. This improves the filling of the cylinder and makes it easier to control the air flow. Thirdly, on the 4G93 engine, the piston has a truncated bottom with a spherical recess, which sharply directs the air flow in the opposite direction. The orderly air movement improves cylinder filling and fuel mixture formation. Finally, the 4G93 GDI engine uses a high pressure fuel pump and high pressure vortex injectors. Continue reading Engine Mitsubishi 4G93
Engine Mitsubishi 4G92
The 4G92 power unit, like its older brother 93, is one of the most popular engines of the Mitsubishi concern. Although it was in production for only 12 years, it deserved popular love with interest. And there is a reason. As practice shows, the motor has almost no typical serious malfunctions that could lead to costly repairs. The in-line 4-cylinder engine is reliable, however, it was not possible to get into the top five, but there are enough people who want to buy a 4g92 engine from Japan to this day. This is because the engine has a rational fuel consumption, consuming an average of 7 liters per 100 km. Quite modest for a volume of 1600 cubes. Continue reading Engine Mitsubishi 4G92