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Originally Posted by Sporty Modder
Big trucks, lol. Love them but hate them at the same time. Got rid of my suburban for a Mazda pickup. Best mod for my Sub was removing the roof rack.picked up 20% mpg's.
To reduce the wake consider a rear mounted spare, with a kamm cover. Also consider a airdam, 10% of the work of a full belly and 75% of the returns.
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Honestly, I think that lawn edging looks surprisingly good for an air dam. I bought a roll and a box of black self-tapping screws, but I keep trying to not drive my car, while I watch for a Civic HX. When I find one of those, I would be installing the air dam immediately.
On
Car MPG Efficiency Modifications Main - EcoModder, it shows
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Belly pan / under tray 3.48%
3 user average
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and
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Front air dam 4.73%
3 user average
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As always, your mileage may vary, but I am positive that we have had more than three members make belly pans, and we probably have members that have made three or more air dams. I think that we need to gather data from our members. Also, dams and pans are not necessarily mutually-exclusive. I remember reading that having both is better than one or the other.
Also, I imagine that you could make and live with enough modifications to match a boat tail easier than you could with an actual boat tail.
Prove me wrong!
