Dick, I just took my cue from the aftermarket tank manufacturers. They
typicall use a -6 AN fitting for a vent. That 3/8 inch. And while this
can actually be calculated, it is far easier to just supersize it...
mayf
Dick J wrote:
>Let's assume that a 1/2" fuel line will be maxed out, flowing as much fuel as
>it can. What size hole/tube is needed for an air vent on the tank so that the
>flow of fuel will not be slowed by pulling a vacuum? I'm just guessing that
>air flows a helluvah lot easier/faster than fuel, and that something like a
>1/8" or 1/4" vent will compensate for the liquid flow through the 1/2" fuel
>line.
>
> Dick J
> In East Texas
>
>
>---------------------------------
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