Quote:
Originally Posted by Piwoslaw
Exactly. I've thought about making a duct that would transport air from the high-pressure zone in front of the car to the low-pressure zone behind it, but then decided that there would be plenty of drag in the duct, and it wouldn't be doing anything that's not already happening under/around the car. Generating compressed air will have an even lower efficiency.
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this duct you were planning on running, what was the cross sectional area like? what size were you intending it to be and where were its pickup and exit points going to be? was it to be used in conjunction with your beautiful kammback?
project groovy will eventually be outfitted with such a duct but in the meantime development will take place on my 80's rabbit which has an 4cm x 25cm oval opening inside the dashboard on the passenger side which is essentially the outside intake for the heating/ventilation air.
unfortunately by the time air has made it to this oval it had to turn downward and squeeze through vents below the windshield and then make another 90deg turn into the duct which would go to the rear window.
lots of resistance. the rear glass window would be replaced with acrylic
which could easily be modified with holes and slots.
of course this would be in conjunction with a kammback.
what were your thoughts?