Here’s why the small turbocharged engines are not efficient
They’re a miracle. Only on paper
If you’re a car lover, most surely you've tackled this topic with your friends: are the small turbocharged engines a good thing for the humankind? You already know the answer: NO(t quite).
Now, they’re not all bad ― a one-liter three-cyl unit will have less weight and fewer moving parts ― but they will never match the claimed fuel consumption rating. That’s common for almost any engine, you’d say; however, the smaller the force-fed engine is, the bigger the gap between the claimed and the live fuel rating gets.
But let’s give the floor to Jason Fenske (from Engineering Explained) to bring light into our minds with this explanatory video.