Here's the process of making this rotary valve engine with a different intake and an exhaust system. It wasn't easy to start ...

Rotary engines differ from conventional ones in many respects — and one of them is the fact that they use two different spark ...

Perfectly tuning the heat range of an engine's spark plugs is something of a dark art to all but the most well versed tuners and the engineering egg heads at automotive OEMs. Getting the spark plug ...

Add Yahoo as a preferred source to see more of our stories on Google. While modern engines feature many tweaks and improvements on the original ideas, they usually aren't as interesting as the strange ...

Kennedy is not just another writer. Since the early 2000s, before televisions were a thing in every household, he enjoyed his dad's stories of the Safari Rally cars. He finally got a chance to attend ...