Adding a gas tank return

[William Shurvinton]

EFI conversions are very popular for us Lotus 7 & copies owners, and quite a
few choose the route of keeping the carby tank and adding a swirl pot to
feed the EFI pump. Main reason is that swirl pots are cheaper than modifying
tanks for those of us who can't weld/live in mortal fear of going pop when
working on tank.

Big cons are  additional weight (cars weigh as little as 400Kg (880Ibs) and
some owners are a little unhinged), 2 pumps to go wrong, not one and the
fact that the swirl pot often ends up in the engine bay somewhere above the
passenger's knees. Some folks get worried about a quart of petrol that close
to their family jewels.

NB none of this really matters if you drive a 'sensible' car, which I don't
;-)

Bill
----- Original Message -----
From: Shannen Durphey <shannen at grolen.com>
To: <diy_efi at diy-efi.org>
Sent: Saturday, December 29, 2001 10:18 PM
Subject: Re: Adding a gas tank return


> Re: Baffles
>
> Carby baffles often aren't good enough for efi.  If yur setup works,
great.  But
> many oem carby tanks rely on the carb bowl to supply some fuel if there's
a
> brief slosh of fuel away from the pickup tube.
>
> One method that works is to use a low pressure pump to reservoir to high
> pressure pump to efi system.  The reservoir can even be fed by a (gasp)
carby
> type mechanical pump!
>
> Depends on yer needs-n-desires though.
>
> Shannen
>


----- End of forwarded message from owner-diy_efi at diy-efi.org -----
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