[miket]

Besides mpg, tach, odom and gas pedal positon what does one need to know to learn to drive efficiently? What things is the mpguino missing?

I was thinking about belly pans. Where does the air leaving the engine go? Is there anything under the vehicle that needs cooling?

I would make the pan easy to install and remove for maintenance. I think id put tall wedge shapes on top of the pan around where frame pieces are so that when lifting the pan up it self aligns into position.

Given the different heights of things under there id install some brackets on the higher places to screw to rather than have screws of many different lengths. Alternatively i have an idea of attaching it with a cable instead of screws but im not sure if its practical. I could run a cable underneath making loops around or through various parts of the frame and go up into the engine bay. The pan would have cable clips so i could place it under the vehicle, reach under and clip the loops of cable to the pan and then go to the engine bay and pull it up tight.