Fuel system question Who is running a return?

[David Kirkham]

Originally Posted by Cobrabill

David,is that "cheap insurance" worth the possiblity of what would happen if the diaphram in the mechanical ruptured?

If the diaphragm goes bad, the electric pump will still work. It has been a long, long time, however, since I have seen a bad mechanical pump. They are pretty much bullet proof.

David

[Cobrabill]

Originally Posted by David Kirkham

If the diaphragm goes bad, the electric pump will still work. It has been a long, long time, however, since I have seen a bad mechanical pump. They are pretty much bullet proof.

David

David-if the diaphram fails(ruptures)the electrtic pump will fill the crankcase with fuel.Like has been said-no need for a mechanical pump.

[Great Asp]

I am running a return line, but have EFI so I need pressure and like cool fuel

If you run a Holley Blue, or Red pump and "can" run a return line, it is only a benefit.

For a carb, you only need 5-7 lbs. Unless it is a full race engine, closer to 5 than 7

E