return line to gas tank

[mrvette]

No the canister systems are either built into the tank or of an arrangement they
won't fit an earlier tank...so I just live with the suden loss/power when under
hard acceleration....it's a reminder to fill up....;-(((.....Oh I know how the
Bosch vac reg fuel pressure thingy works....but I hear there is a SS driven pump
of quick enuff recovery to get away from that system, so just one fuel line is
required....

It must work off a pressure tank, like a well pump....theory is good....

GENE

Steve Ravet wrote:
> 
> mrvette wrote:
> >
> > Nah, I can attest with my'72 vette that the reutren line on a full tank of gas
> > tends to heat up the gas, and expand the tank, forcing a leak conditon....when
> > the tank is somewhat enptied,  the fumes disappear....
> > believe me I have monitored this condition VERY carefully over the 3 years this
> > mod with DPFI has been in effect, and tried all sorts of thigs....it's not
> > really a leak, just escaping fumes...a real pain in the ass....you know the cold
> > gas goes through the warming of the FI rails on the engine, and goes back heated
> > to the tank,  gradually it all heats up, and forces gasses to escape,,.....the
> > old type of evap canister, allthough operationg correctly is not up to the job,
> > hence the late model FI cars have a bunch of capillary tubes in the system...
> > a real weird piece of engineering, of which I have no knowledge....
> > anyone out there who knows of these things....?
> 
> The regulator has to be able to bleed off fuel in order to maintain the
> correct pressure.  What do you do with that fuel?  It has to get
> recirculated to someplace before the pump intake, which means the gas
> tank if you have an in-tank pump.  Have you tried a cannister system
> from a late model car?
> 
> --steve
> 
> --
> Steve Ravet
> steve.ravet at arm.com
> Advanced Risc Machines, Inc.
> www.arm.com

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