The hallmark of the Ford Ecoboost motor is the turbocharger which forces more air into the engine than a normal engine would receive. A combination of more air and more fuel equates to a more powerful engine.
The Ford Ecoboost motor uses a combination of turbo charging and direct fuel injection to improve fuel economy without sacrificing power. Some people use the word "boost" when refereeing to turbochargers, which is where the "boost" in Ecoboost comes from. Instead of making the engine larger, which would require more fuel, adding a turbocharger can add power without decreasing gas mileage.
Direct Fuel injection is the second part that improves fuel economy. The typical fuel injection system uses a step known as the intake tract in order to inject fuel. Direct injection cuts out the intake tract process entirely which results in a less complicated injection process and improves efficiency.
Ecoboost engines are assembled in Brook Park, Ohio, at the Cleveland Engine Plant No. 1. The 2.0 L I4 Ecoboost has been produced at the Ford Valencia Engine Plant in Spain since 2009. The 1.6 L I4 engine is produced at the Ford Bridgend Engine Plant in the United Kingdom, and the I3 is scheduled be made in the Ford Cologne plant in German and Ford Romania, as of 2015.