[Diy_efi] FI Gas Tank

[Shannen Durphey]

Ummm...

Maybe use a pressure relief valve?  If using a return system, esp. an efi system,
and depending on engine loading, run times, engine size, temp, yadda yadda, you can
easily transport a fair amount of heat to the fuel in the tank.  And the regular
car/truck tanks rely on the straps to keep them from swelling excessively.  Though
they do swell enough in some cases to prematurely drop the fuel below the level of
the pump.

But for quickie little bursts or mostly light loads you might get away with a non
vented tank.


Shannen

joe graham wrote:
> 
> 
> Yep.  To vent the tank you need forced venting.  You can't use an electric
> fan because it might ignite the fuel. Blow through will not help because
> when you remove the power fumes will creep everywhere including into the
> fan.  The only safe fuel container is one that maintains an unburnable A/F
> ratio.  With gasoline it is much easier to seal the tank and allow it to
> pressurize.  This will cause an A/F ratio low enough to be unburnable.
> 
> HTH
> 
> JG
> 
> Thanks        Don
> 
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