Quote:
Originally posted by Cobra Dude
Anyone here know about fuel tank design? I am rebuilding my Cobra tank from scratch with 1/8" aluminium. Two purposes are more capacity, and dual in-tank pumps to eliminate the noisy in-line T-rex BAP.
The tank is already designed from an external-shape perspective, with the pumps close to center towards the rear of the tank. They are as far back as possible considering the slope at the rear of the tank.
I need to tweak the design for better sumping though. Instead of sumps (which will steal capacity and be difficult to implement cleanly), I was considering baffles surrounding the pump pickups and angled towards the center -- sort of like a pyramid with the top half cut off.
Thoughts?
Cheers,
-Neil.
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Neil,
First thing. Pumps need to be forward in the tank. Braking is the critical area for fuel pickup. You will never have the G's in acceleration that you will have in braking.
Second thing. You can buy fuel cell foam from any of the fuel cell manufacturers. Use this as your baffle system. Put the pumps forward in the low part of the tank. Cut the foam to give you a sump type area around the pumps.
Third thing, buy a fuel cell top fitting with the filler and pickups included. Much easier to use this than try to fab everything.