An angle grinder is one of the most widely-used power tools, in part because it’s fun to use and in part because it’s so effective at removing material. Unfortunately, among power tools, it’s also ...

V-shaped engines like the V6 and V8 power lots of cars, but you probably never think about what, exactly, that V angle is. That's okay. Automotive engineers do.

During one of our never-ending technical discussions, Jim Grubbs at Jim Grubbs Motorsports (JGM) suggested that we take a look at the flow difference between 30- and 45-degree valve seats. While ...