Here is the link to the belly pan I made last summer. Some of it is attached directly to the subframe, but I attached wood strips and some metal cross braces to the subframe as well for extra support. A couple of the cross braces were old curtain rods. They worked but are not heavy enough. The first coroplast pan I made warped so I reinforced this pan by gluing pieces of foam board to it. This was a must for the sheetmetal pieces to keep the noise down. Panels are all attached with screws. I had to leave the exhaust open and put some fiberglass and tin flashing around the converter and front muffler to keep it from melting my pan. I haven't done a rear pan yet. Don't be afraid to spend some time laying under your car coming up with a plan. Also, don't forget to leave yourself some jacking points exposed.
http://ecomodder.com/forum/showthrea...pan-13627.html
__________________
Almost all my driving is done 1-5 miles at a time.
Best short trip: 2.4 l/100 km, 3.9 km