| I just know that there is enough daylight in the body in/under/around the IC area (and entire engine bay) that air will find the open space and move thru it. If it was a track car I would look at something like the kkroft louvered wheel wells for brake cooling but thats about it. Remember adding louvers can add drag and turbulence in unexpected areas as well. I understand that your concern is creating a bubble effect around the intercooler that keeps pressure near static and doesnt allow air to move thru the IC "freely". But really think about what that situation requires.... like I said, an almost air tight seal. Keep in mind the car is moving thru the air, not the air moving thru the car. So the car creates high pressure zones at the leading edge just by moving thru air and the air affected relocates to low pressure areas which it first finds inside the grille and IC vents and from there the air will either vent thru other low pressure zones (holes, gaps, spaces, etc) or re-circulate in the pocket for a second or two until it has a chance to flow thru the low pressure zone(s) with the rest of the molecules. Even if a certain molecule is trapped in the IC zone by not immediately venting it will still circulate thru the IC once or twice or more before moving to a different low pressure zone. The fact that the same molecules may run thru the IC once or twice could add a very very marginal amount of heat soaking, like -.05%. but overall the fact that the molecule will still circulate repeatedly adds cooling performance itself. The reason that we dont have to be so precise and worry about air flow dynamics is because these are passenger street cars. A certain amount of air flow is already considered lost and uncontrollable from the beginning. It is much different than understanding the intakes of an aircraft like the F22 for instance with variable inlet geometry to maximize airflow dynamics at different speeds and angles of attack. The entire intake system is completely sealed off except for the inlets. And 100% of air flowed into the inlets goes into the engine for thrust and power. Unlike the Z where ... 40%, maybe, of the air directed to the inlets actually goes into the intake of the vehicle. Its not an air tight system that pockets air. Sorry for the long post. I would love to see some dyno results for the fog light ducts and IC louvers. I would really love to see the dyno results with the ASH Spec IC guides vs without the guides as I suspect that the guides do more to stand in the way of free flowing air than actually facilitating the air going straight to the thru and hitting as much IC surface are as possible.
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