I'm not noticing any difference. If there's a difference, it's because I'm enjoying the extra horsepower a little too much(i.e. pedal to the metal).

 

not necassarily true...

There's hondata controlled b-series engines making 300-400 horsepower with 30 highway miles per gallon still.

I means, if your not pedalling to the metal

 

j,

A more dense charge will allow more total power (i.e., 210 as opposed to 208 HP), but if I'm doing 10 mph in 0 degree weather and 10 mph in 100 degree weather (disallowing air resistance), it will still take X amount of HP to push that car in both cases...with the cold weather, I can have a higher top speed because my POTENTIAL for more power is there with the more dense charge.

0 degree weather, 1 mL/s of gas, I go Y mph...100 degree weather, 1 mL/s of gas, I go <Y mph because car needs more air molecules in that same instant of time since the warm air isn't as dense. So, for the same mph, the more dense (i.e., cooler) charge uses less gas, hence gas mileage is increased with a CAI.

I'll fully admit on this one I could be wrong, but my logic seems reasonable until someone shows me where I went wrong.