I will say it in the beginning, I don't know much... at most, little on performance. So please excuse my question if it sounds stupid. Its my assumption that the engine gets more power when air is pushed into the engine, via air box? In that case, is that how a turbo works? Essentially pushing air through an air filter then into the engine? Does a turbo "engage" at a certain speed or RPM, or does it kick in with accelerarion? thanks in advance

I don't know as much as others, so I'll get my 2cents in while I can ......More air is the first step, and it needs to be combined w/ more fuel to get appreciably more power. Turbos do work by forcing more air into the engine, but they do so after the air filter. Turbos are driven by exhaust gases; compressor housings and wheel trims will determine when they spool up.

so its more than just a fan blowing air into the engine?

yep thats exactly how a turbo or supercharger makes power, by pushing more air into the engine, thus allowing more fuel to be burned, thus allowing more power. A turbo runs off exaust gases, usually bolted right off of a header or exaust manifold. The exaust gas passes through a fan that spins and exits out the exaust system (cat conv., muffler) The fan that the exaust gases made spin pressurizes the air that it gets from the intake side of the turbo and either goes directly into the engine, or through an intercooler which cools that air down. That air goes into the carbourator or throttle body, mixes with fuel, and is burned.

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