Automobile engines have undergone tons of changes over the years, primarily to make them more efficient. For the most part though, engine changes result from a string of iterative improvements on ...

Everybody realizes the importance of an engine, but something that's equally crucial, if not more, is the fuel delivery. Only the right mixture of fuel and air can ensure efficient performance with ...

Port fuel injection and direct injection are similar but distinct systems, so why do some engine designs include both?

The fuel injection pressures used in gasoline direct injection (GDI) engines have increased in recent years to improve fuel efficiency and reduce emissions. Current GDI engines use injection pressures ...