[moonmonkey]

i saw on a race car an adjustable bellpan extention sticking out the rear of the car about 12" of the ground it has tie rods to adjust its angles, and after reading alot on different sites im still not sure what would be the best shape for a decklid extention for my 2002 echo sedan, and how effective can that and the bellypan extention at the rear be compaired to a boat tail? can some of you aeromod gods draw me a picture of some designs to try on my echo, i,ve completed a full upper grill block and am doing the full belly pan this month id love to build a decklid/bellypan extention if they will improve my mpg on the highway,i have free sheet metal and the like as i have a small bodyshop operation so the cost will be almost free except my time. i used to drag race but ,chasing mpg is way cheaper and its also fun. I get 45 mpg now with a 5 speed mostly highway speeds love to get 60.