Quote:
Originally Posted by Taylor95
Do you think that circular fog light holes would be sufficient for internal air curtains? I have been thinking about doing this to my Camry.
I am not sure if enough velocity could be maintained for it to be effective since the air will need to "change shape" to exit through the wheel wells.
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Very easy to find out if the duct will flow plenty of air.
Use a differential pressure gauge (eg Magnehelic) to measure the pressure in the fog light opening and the pressure in the wheel arch where the opening would go, at say 60 mph. You want a decent pressure difference (eg 0.5 inches of water), with the higher pressure in the front opening.
At a pinch you could do it with a home built manometer at basically no cost.
Don't worry about the change in shape of the duct - if there's enough pressure difference, there will still be plenty of flow.