tim_blair wrote:i use an intercooler on a na setup
That is silly. It will not work. Unless you are spraying liquid that evaporates on the intercooler. The intercooler you have in there adds extra turbulence, drag/restriction, and perhaps heat soak.
If you are thinking about wind-chill factor - that only works if the object is hotter than ambient. In case of intercooler on NA, the air you are sucking in is the same temperature as air around the intercooler. It will not magically cool if you blow air on it. Thermodynamics 101, or shall I say common sense?