woody said:IMO, yes...non-sump models use a fixed pickup, and it's usually set in a corner.... Not the best positioning.
Bottom/centered sump provides the best opportunity to keep fuel present at the pickup, all situations other than steep downhills...but for those, you have gravity on your side and (most likely) aren't powering your way down anyways....
that was my reasoning for the sump and facing it backwards.
Facing the sump to the rear is the way to go. After much debate while building my buggy, we decided that facing the sump forward would be OK. After 45minutes of being stranded on my first obstacle of the day, I really wished it has physically possible to give myself a swift kick in the ass. The worst part is that it was during a comp!
I designed a fuel tank at my previous job that would do the trick. You run the pick-up tube out the top of the tank. A flexible tube runs freely to the bottom of the tank with some slack in it. Itis slightly weighted on the end and follows gravity. Thie generally keeps it where the fuel is the deepest.