Engines are dumb simple. Let me explain. Back in the day, we needed something to replace the horse. Animals are pretty good ...

Air engines are a common occurrence here on Hackaday. They’re relatively novel and reasonably easy to 3D print without requiring any fluids or supporting machinery. For example, [Tom Stanton] took a ...

Your vehicle's engine air filter plays an important role in its performance. So, what can happen if you don't change it? Here ...

One of the best aspects of a project build for automotive enthusiasts is the quest for improvements that will add to the vehicle in some way. There are several engine components to replace, add, or ...