Quote:
Originally Posted by brucepick
In EcoModding Central, get started reading the Sticky "Master list of 65+ proven mods... ". It will tell you more than I certainly can.
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Definitely the first order of business.
Quote:
Originally Posted by brucepick
Consider a belly pan. Not a small or quick project but I think a minivan's aero is mostly pre-determined in other areas. Often the underside is an aerodynamic nightmare that can be improved, even if your creation is not perfect.
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This has been top of my list. I made an aluminum one for our old '99 Plymouth years ago and it was a good exercise. It only covered the bottom side of the engine compartment (made from 3ft x 4ft sheet aluminum), but it made a noticeable improvement in handling in buffeting wind conditions (passing big trucks and such). I didn't do extensive testing, but the mileage didn't take any significant jump - maybe something on the order of half a mpg overall. It was noisy though - the aluminum liked to "pop" and resonate. I saw a 4ft x 8ft sheet of plastic at the Home Depot normally used for bathroom/bathtub walls. Wondering if I might re-purpose some for a belly pan...