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Old 02-14-2008, 10:43 PM   #5 (permalink)
3lr
EcoModding Lurker
 
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Quote:
Originally Posted by MetroMPG View Post
To generate a vortex, you need a plane set at an angle to the local airflow.
the inner VGs on the Evo are not angled.
skewing begins/increases as they near the driprails.
also they are fins, not just dumb tabs,
there is purpose to their shape much like
the airtabs have - versus the much simpler
fuelsavers!
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