Well now everyone can see the root cause. Those big holes can’t keep the fuel on the LH side with the fuel pump. If you take a hard LH turn all the fuel just goes up and through those big holes and fast. What hasn’t made it over to the RH side is too far away from the fuel pump pick up to make it to the motor. When I first opened up a tank I could not believe this ever made it off the drawing board (ok CAD terminal). As well you can see the adhesive is a very small part of the problem. I would assume that the glue was an attempt to band aid an inadequate design. My opinion anyway. Not to slam Lotus, it's alwasy easy to second guess a current design.
Just a note. At 1G the fuel would be at a 45 degree angle to the bottom of the tank. The higher the Gs the steeper the fuel angle. The stepper the angle the further the fuel gets away from the pump. Now add bumping around on the track. The pump has no change to see any fuel.
If you don't upgrade your system. Keep your tank topped when on the track.
So how do you get such nice pictures of the baffle? Well you just cut the end off the tank
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