Talking about the difference between Volkswagen 1.8T and 2.0T

EA888 series engine is currently divided into 1.8TSI and 2.0TSI two power systems, the two mechanical structure of the engine is basically the same, the bore is exactly the same, but the length of the connecting rod between the crankshaft and the piston is different, 2.0TSI and 1.8TSI In comparison, the length of the connecting rod is shortened, but the radius of the crank is increased, so that the purpose of increasing the displacement is achieved. (Because there are basically two ways to increase the displacement without affecting the performance of the engine: one is to increase the bore diameter, and the other is to increase the stroke - the official interpretation of the public), and the top of the former piston is relatively flat and the latter has protrusions. This is to ensure the same compression ratio: 9.6, to achieve the same burning effect.