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Old 03-08-2010, 11:30 PM   #129 (permalink)
Christ
Moderate your Moderation.
 
Join Date: Nov 2008
Location: Troy, Pa.
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Pasta - '96 Volkswagen Passat TDi
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Quote:
Originally Posted by RobertSmalls View Post
Jim,

The idea is to make the transom as small as possible. Thus, if my taillights allow it, my transom will be six inches tall, exactly as tall as a license plate. If you exhaust air above or below the plate, you're increasing the size of your wake. It's a small point, but worth considering.

The photo of the cabin vents I posted was file footage from my trip to the junkyard. You should be able to see the vents from the inside if you pull the cargo basket. Hmm, I wonder if you can feel the flow back there if you turn the blower to high. Anyway, my best guess is 16in².
You'd only be able to feel the flow if you had the air set to fresh air, instead of recirc.

If you block those vents entirely, you might have an issue with defrosting, as recirc is most efficient for defrost.
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