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 ...

Any time you start playing with boost, terrible things can happen. That's why this tuning class from Rob Dahm featuring his 600-horsepower rotary-powered Corvette is so special. For the uninitiated, ...

Pop the hood on a classic Mazda RX-7 or RX-8 and the engine bay looks oddly empty. That is the charm of the rotary engine: a compact lump of metal that trades pistons and valves for a spinning ...

"I really can't remember having any issues with this car." Yeah . . . when was the last time you heard someone with a Mazda RX-7 say that? Or better yet, someone with a rotary motor? It isn't any ...

Rotary engines (also known as Wankel engines and Wankel rotary engines) are quite different from piston or "reciprocating" engines. One of the distinguishing features is that they don't need valves to ...

How the 13B-MSP Renesis evolved from earlier Mazda rotary designs, technical features explained, and common problems and maintenance issues discussed. The 13B-MSP Renesis rotary engine powered the ...

Add Yahoo as a preferred source to see more of our stories on Google. 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 ...