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Old 04-13-2009, 12:43 PM   #2 (permalink)
Deezler
Master EcoModder
 
Join Date: Apr 2008
Location: Michigan
Posts: 261

Bio Deezler (sold) - '03 Volkswagen Jetta GLS TDI
90 day: 50.78 mpg (US)

The Beast. - '03 GMC Sierra 2500HD SLT
90 day: 12.86 mpg (US)
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Thanked 36 Times in 22 Posts
Front end aero mods

The first steps I took towards improving FE were some light mods to the front end.

Stock:





Finished:



At this point I still had the top grill wide open like a parachute. That wasn't cool. So I took my "sport" style grill and just zip-tied some more coroplast behind it.



Had to leave the corner open for the engine air intake though. Hopefully it sucks enough air to lower the high pressure zone a bit there.



I installed an aluminum skid plate a while back to deal with the potential risks of running such low ground clearance. It's fun to watch my passenger's faces when I clank it hard off the pavement from time to time. Last weekend I snuck back under there and added some coroplast extensions to the sides to help further clean up the air flow. Looks like the skid plate design should be pretty good for aero.

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