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When we published this video we were still in the midst of a pandemic and Spain was in a state of alert. We want to make our modest contribution: continue publishing our three weekly videos so that, at least for a few minutes, you can distract yourself and escape from problems and make being locked up at home more bearable. Many of you have asked me about #superchargers and in this video you have the answer. Are they more or less interesting than turbochargers? For those of you who are scared of the technique, I'll tell you in advance: Don't be scared because this video is going to be simple and easy to understand. To improve the performance of an engine, all you have to do is put in more air. More air means there is more oxygen and more oxygen means we can inject more gasoline and if there is more gasoline, the engine will develop more power... The way to put more air into the engine is through a compressor. It can be a turbine compressor, centrifugal compressor, Roots type... we'll see that later. And a compressor, to compress, needs energy. And this is where the two types emerge: mechanical compressors, superchargers and turbochargers. The former take power directly from the engine, by means of a belt, chain or directly from the crankshaft. The latter, turbochargers, take power directly from the exhaust gases. We already have two videos on #GarajeHermético about turbos, explaining how they work and which are the best ones that have been introduced lately. I recommend both, especially the second one.