Rather than taking up valuable ground clearance, has anyone stored bags of fuel in the doors? If the bags were airtight, they could expand and collapse on their own to accommodate the extra fuel from the gas tank.
I imagine basically drilling 4 holes into the bottom of the tank, silicone in some pvc hoses that route to each door through the wiring harness loom, then using like a large tire ball in each door to hold the gas
Obviously you'd have to raise the filler neck to deal with gravity or whatever but they would auto siphon perfectly
My basic calculations estimate you could get another 15 to 17 gallons in the doors
I imagine basically drilling 4 holes into the bottom of the tank, silicone in some pvc hoses that route to each door through the wiring harness loom, then using like a large tire ball in each door to hold the gas
Obviously you'd have to raise the filler neck to deal with gravity or whatever but they would auto siphon perfectly
My basic calculations estimate you could get another 15 to 17 gallons in the doors