AN fitting vs fuel line size? Options

[stugray]

I want to buy a fuel cell.

It says that it has:

10AN Male inlet
8AN Male rollover
8AN Male return

http://www.jegs.com/i/JEGS/555/15551/10002/-1

When I try to lookup AN fittings vs. fuel line size I find:

-3AN - 3/8" ID
-4AN - 7/16" ID
-6AN - 9/16" ID
-8AN - 3/4" ID
-10AN - 7/8" ID

So .... are they saying I need fuel lines that are 3/4" ID?????

That is ridiculous. I have a coil of braided stainless hose that is ~5/16 ID.
It seems like the logical size for fuel line, so that seems like -3AN to me.

Why would the fuel lines be so large from the fuel cell?

Seems like a lot of expensive adapters for two tiny lines through my tunnel.

(IMG:style_emoticons/default/WTF.gif)

Any help would be good.
I must be missing something ......


And I suppose the "10AN Inlet" is for the feed to the fuel pump/pressure-regulator and the "8AN return" is the dump line back from the pressure reg.?


Stu

[ME733]

....Unless you are running fuel injection....you will only need ONE fuel line to the pressure regulator,( and from there to each carburator)...... As with any fuel injection system, there will need to be a RETURN line back to the fuel tank. look at the OEM fuel injection system,and run your "earls" or "aero-quip" back to the fuel tank from that point.........I agree that -6 will flow all the fuel needed., and many types /angles/ bulkhead/ reducer/fittings are available to assist in a perfect installation.