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 ...

Adding nitrous to the already potent Nissan Skyline GT-R may seem like overkill to many. Where we come from if there is a way you can make more power you take it. Our test subject has an enviable ...

In most tests on engines up to 6,500 rpm, a modern high-rise dual-plane intake like this Chevrolet Performance example on a Chevy 350 generates the best overall average torque and power numbers ...