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

[jd74914]

Sorry to rain on your parade but you're plan does have some problems.

Brake line is tube so the nominal size is the OD, meaning that you can clamp 3/8" tube over a 3/8" brake line (with a flare or something to keep it from coming off).

I would neck down from the -10 on the tank to a -6 which can go to a regular barbed fitting/regular hose to clamp to the 3/8" brake line. Then do the same thing on the engine side to make everything over there -6.

Just so you are aware, you also cannot just slip braided hose over a tube and expect a clamp on it to work. You need to use regular rubber line to do that; clamping braided line is really not safe.

Unless you are doing it strictly for the looks, I would look at using push-on hose fittings. They (and the push-on hose) are significantly less expensive than braided and just as robust.