Subaru built the only twin turbo flat four in a production car. Here is how this rare EJ20 setup worked, why it struggled, ...

A hyped technology from four decades ago, turbocharging is now standard in almost half of all cars sold in the United States, ...

The turbocharger (or turbo) is essentially an air pump that feeds more compressed air to a gasoline or diesel engine, hence the reason why turbo engines are often referred to as "forced-induction" ...