Fuel cell location

[drummerdad]

I have been thinking about this also. Im thinking of making my own aluminum tank, around 15-20 gallons Im guessing. So, full it would weigh around 120 lbs. If I move the battery, and the exhaust to the opposite side of the tank, I can offset the weight a little. Not the full 120+ lbs, but Im not as concerned about CG, as I am the truck leaning to the left while my fat butt is in it.



The opposing tanks with a balance tube sounds good, but like has been said the driveshaft might impede on the idea. Aviation uses this system to great effect. Multiple tanks, feed through gravity or transfer pump to a feed tank. Engines pull from the feed tank, but the pilot can adjust the CG by moving fuel from the fwd and aft tanks (in helicopters, fixed wings might also have wing tanks) when necessary. They also have sumps that weigh the fuel, so they know how much to move. Somewhat more complicated than you would want, Im sure.