The concept of Cold Air induction is that 1. Cold air is more dense than warm air. 2.The more dense your air is, the more efficiently it will aid combustion. The N2 and O2 molecules are moving at a significantly lower rate of speed allowing more O2 to be utilized. Also because the air is more dense, of coarse more pressure exists within the cylinder and forces the piston down with greater force once combustion occurs. Last, in every combustion cycle, not all of the fuel is burned, however, if you can provide more O2 molecules, the fuel is burned more efficiently. In theory, one might even expect a small increase in gas mileage. There are those who say that for every 7 degrees F. the intake air is lowered, 1 bhp is gained.

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