View Single Post
Old 11-28-2009, 03:27 AM   #20 (permalink)
Moderate your Moderation.
Join Date: Nov 2008
Location: Troy, Pa.
Posts: 8,919

Pasta - '96 Volkswagen Passat TDi
90 day: 45.22 mpg (US)
Thanks: 1,369
Thanked 430 Times in 353 Posts
Originally Posted by Frank Lee View Post

There's gonna be dirt devils on the taillights no matter what mods happen back there except for a full boattail that covers em up.
There will be, of course, but the impression I got was that he has to regularly clean his tail lights because of them... improving rear airflow will help that situation.

The idea (for those that don't know) is that solid masses traveling in an air stream will move to the outside edge of the stream.. (centripetal force), and tend to attach to solid-non moving objects, like your car, where they can adhere. Moving the largest section of the turbulent wake further from your vehicle means that less of the particles get trapped close enough to your vehicle to adhere, so you get less dirt devils in the lenses.

It's kinda like how those stupid SUV window spoilers work, only in reverse, I guess.
"ʞɐǝɹɟ ɐ ǝɹ,noʎ uǝɥʍ 'ʇı ʇ,usı 'ʎlǝuol s,ʇı"

  Reply With Quote