At one time the most obvious component on many "hopped up" cars and trucks was a hood scoop. The reasons given for using them included the ram air effect, a cooler air source, or they just looked ...

Most Chevy truck enthusiasts know that improving the flow of air into the engine and reducing backpressure are sure ways to make some power. But believe it or not, this process is not as simple as it ...

Positive Crankcase Ventilation—three dirty words, but do they really need to be perceived that way? In general, the PCV system has two main functions: vapor relief and liquid separation. PCV systems ...

There’s hardly anything on a truck that’s simpler than its air-intake system. And not too many things – maybe only your right foot – that can have as much effect on fuel economy. A diesel engine needs ...

Intakes are vital automobile components that work to bring oxygen – a key ingredient in an internal combustion reaction – into the engine’s combustion chamber to modulate how much oxygen mixes with ...

Popping the hood of a new Mercedes-Benz 300SL Gullwing must have been quite an experience for most enthusiasts in the Fifties. For starters, the 3.0-liter straight-six sat canted at a fifty degree ...