Which engine model is better, EA2 1 1 or CSS? Is there a difference in price?

Engine models EA2 1 1 and CSS are Volkswagen's automobile engines. As for the performance of the engine, it is finally achieved through the final adjustment and the matching of various parts, and it is impossible to simply compare the advantages and disadvantages. After all, both engines are mainstream direct injection supercharged models, and the rated output power of the general engine is higher, but the output under the wheel is reduced due to the resistance of the gearbox.

As for the price, there are many different engines under EA2 1 1, and the prices of different engines are definitely different, so the price depends on the situation.

EA2 1 1 series engines have four models, namely:

1.4L four-cylinder turbocharged engine, 1.6L four-cylinder naturally aspirated engine, 1.0L three-cylinder naturally aspirated engine, 1.2L four-cylinder turbocharged engine.

EA2 1 1 The new features of the engine are as follows: New features 1: Further lightweight.

Unlike the cast iron cylinder block of EA 1 1 1, the engine of EA2 1 1 adopts the form of aluminum cylinder block and cast iron cylinder liner, which also reduces the weight of EA2 1 1 by 22kg. According to the public official, this 22kg weight loss can improve the fuel economy by 20%. In addition, the crankshaft is 20% lighter, the connecting rod is about 30% lighter, the connecting rod journal becomes hollow, and the piston becomes flat. These measures are aimed at reducing the engine servicing quality and achieving the effect of energy saving. In addition to the engine itself, EA2 1 1 has become more compact, and its installation length has been shortened by 50mm, correspondingly increasing the seating space in the car.

New Function 2: "Reverse" Optimization

The timing chain of EA2 1 1+0 engine was replaced "reversely" by the timing belt again. In fact, there is no relationship between the two, and there is no saying of substitution or substitution. They all have their own advantages. Timing chain has long service life and low failure rate. Although the service life of timing belt is not as good as that of timing chain, it has low noise, small transmission resistance and small inertia, which can reduce power loss less.

New Function 3: Exhaust Turbocharging System

The turbocharger and exhaust pipe of 1.4TSI engine are integrated (integrated in the cylinder head), which can shorten the distance of exhaust gas to the turbine and slow down the turbine lag to some extent. Moreover, higher exhaust temperature can make the three-way catalyst enter the working state faster and improve the catalytic efficiency of exhaust gas.

New function 4: Double-loop cooling system

On the thermal management system, EA2 1 1 is equipped with an advanced dual-loop cooling system. Simply put, the cylinder head and cylinder block have their own cooling circuits. Because the ambient temperatures of cylinder head and cylinder block are different, they all have their own optimal working temperatures, so setting two sets of cooling systems with different temperatures is helpful to keep the engine in the optimal working state and improve fuel economy.

New function 5: In-cylinder high-pressure direct injection technology

The maximum injection pressure of EA2 1 1 is 100 bar. Especially, the injector of 1.4TSI engine adopts 6-hole nozzle mode, which can effectively prevent the injection from covering the top of the whole piston when the throttle valve is fully opened or during the process of preheating the catalytic converter, and further ensure the combustion efficiency of direct injection in the cylinder.

New function 6: ACT active cylinder management system

This system is actually based on Audi AVS variable valve lift technology. The so-called variable valve lift technology, whether you are AVS, i-VTEC or VVT, works on the same principle: the valve lift is changed by switching two cams with different angles. As for the active cylinder management technology of ACT, you can simply understand that one of the two camshafts with different angles is replaced by a camshaft with no angle to achieve the effect of cylinder closing.