Quote:
Originally Posted by toomuch
I agree!
But nice post SVOboy.
I just don't understand how warmer air can increase efficiency.
However I have not done any research myself.
Since Cold Air Intakes take in denser air, which stuffs more oxygen in the explosion chamber, I guess it the computer puts in more fuel to compensate. Maybe that is why.
There probably is a whole thread on this somewhere, so sorry for not searching. I'll check later.
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Here's my thoughts on this one, and it relates to my above post too:
The ECU (or carburetor) will inject an appropriate amount of fuel for any given amount of air (ideally, in real life it varies obviously, but that is the goal). An engine needs X mass of air/fuel to go a certain speed, regardless of the density of the air. If you are using less-dense air (hotter air is less dense) the engine will need the same mass of air to get the same amount of power, so you'll need to have the throttle open more (less restrictive) to compensate and allow in more of the air. There are other reasons why hot air is more efficient for cars, but that is probably the primary contributor.