Here is the new 3d design for the fuel tank. If you click the image you can download the 3d pdf of the tank that will allow you to rotate it.
What’s missing in the image is the internal flap gates between the bottom fuel pump holder and the tunnel riser, as well as the tunnel riser and the top part of the tank. I haven’t decided if i’m going to internally baffle the top of the tank left to right, of just add the hollow golf balls or foam. I have options.
I’ve designed it in 1.5mm stainless which means the total weight is 10kg. It’s not the lightest but it does weigh the same as an elise aftermarket tank. I’ve built in as many folds as possible to cut down on the welding.
I might make the tank and then use it as a mold for a carbon tank instead.