[Ant]

Aussie Mike,

Nice job with the tank. I like the idea of having the pump pickup in tank nicely baffled with gates etc, instead of separate pots etc. Its good to fit a drain bung like you have, as some tanks can have a wedge of water that is hard to remove.

My tank doenst have physical baffles apart from foam as I am currently building a separate surge pot to take separate fuel and air.
The surge tank I had built had the fuel entry in the bottom and the fuel supply to my main pump in the same area, there is a small baffle over the pump supply hole, not good design. Will design a pot with entry in top and return to main tank in top, and main pump supply pickup going through top and down to bottom, I am told this is better than taking a pickup directly on the bottom due to area of tube makes it harder for air to enter. Even though there is some pump lift with a top pickup.

It would be nice to buy a surge tank but by the time you want e.g. -10 return and two -8 supply lines to tank etc. Yes we have gone a size bigger in the two commodore electric pumps that supply the small tank. I have a new Holley red as well but thought as the tank is so wide it needs two pickups under the foam.

My main pump is a simple Aeromotive SS 150gph pump feeding almost 700bhp, I see more powerful race cars with only Mallory 140 pump as main supply pump, so I am trying to keep it simple.

I did design a top hat type baffle to go in to the top of a wide shallow tank, it was three different diameter cylinders with about 25mm gap, each with a 13mm x 13mm square cut out of side at the bottom, the cylinders were positioned so the inner cylinder where the pickup is had the cutout at the front for acceleration, the middle had the cutout at the rear for braking and the outer same as inner, this solved fuel surge totally but I was only on radials and low horsepower in my first cobra.

Keep up the good work, next time I will design the pot or sump in tank.

I have had no luck uploading photos to CC at all, even reducing the quality in my camera TZ10 to as low as possible.