OBJECTIVE: Wet flow, pressure excursions, port volume, runner length, plenum volume—all these figure into an engine's overall efficiency. But there's more… Sometimes theory is neat, but sometimes it ...

Last month we showed what gains were available from three aftermarket Three-Valve intake manifolds in naturally aspirated trim. This month we're going to try the same three intakes, only now we'll see ...

For most gearheads, there's nothing quite thrilling like the roar of a tuned engine and the instant kick of improved acceleration. Of course, buying a muscle car to enjoy lots of raw power and torque ...

Porsche often does things backwards—just look at the 911, keeper of the rear-engine flame. But that philosophy extends to smaller things, too, as Jason Fenske of the YouTube channel Engineering ...

When it comes to induction systems, the LS-series powerplants boast some of the best designs out there. This shouldn't come as a huge surprise, considering that these intake components were developed ...