Good Snorkle

[AWD Chaser]

Does an increased air-intake have any affect on fuel consumption?More or less?

The only time you will get an increase in air consumption is when your force air in the engine via a turbo or supercharger.

Having a CAI (Cold Air Intake) lets you suck cold air from the front of the car (rather then hot air from inside the engine bay). Sucking in cold air means you have more oxygen particles per square inch (or whatever your measurement is). Therefore you get a better bang.

Having a bigger CAI allows you to collect more cold air, and allow the engine to "suck" easier because their is not as much restriction, thus resulting in more throttle response.

To answer your question, without going into Forced Induction, colder air, and more free flowing air should result in a bigger bang, less work for the engine to suck it in, and hence - more fuel economy.

The way this works is when something is cold, atoms are more closley bound to each other, when something is hot, atoms move around more and bouce off each other, therefore, when it is cold, in one cup of air, you will have more oxygen particles then hot air.

Correct me if I'm wrong - lol.

**EDIT** Damn - someone just beat me to it!