I run two holley pumps in parallel with a switch that selects either
one, through a 1/4" braided stainless line to a big fuel filter, and
then to a regulator. I had a lot of trouble dialing in the carb until I
installed the regulator. Now I run about three pounds pressure.
-----Original Message-----
From: Malaboge@aol.com [mailto:Malaboge@aol.com]
Sent: Tuesday, January 26, 1999 4:09 PM
To: emanteno@ibm.net; fot@autox.team.net
Subject: Re: Fuel System Questions
In a message dated 1/26/99 2:11:39 AM !!!First Boot!!!, emanteno@ibm.net
writes:
<<
I am requesting your recommendations for electric fuel pumps for my TR4
vintage racer, which will be returning to the track in 1999 after a
long
vacation. As I look in various catalogs, I see a variety of gallon per
hour
ratings, operating pressures, and fitting sizes. For example, the
commonly
available Facet/Bendix silver top interrupter style pump has a 30
gallon
flow@ 2psi, 1/8" NPT fittings, and 4-5 psi maximum operating pressure.
The
same manufacturer also makes a blue top model that operates at maximum
of
6.5 to 7.5 psi, has a flow of 45 gph @ 2 psi, and has 1/4" NPT
fittings.
I would also like to hear pros and cons as to whether a fuel pressure
regulator would be a good idea. My car has Stromberg 175's on it.
Any and all other suggestions/recommendations gratefully accepted.
>>
Fellow fuelish racers -
In the TR3, I ran 2 pumps in series. One pump at the rear pushing as
much fuel
as possible (one of those mondo Holley numbers), thru a large fi style
fuel
filter, then to a second pump at the firewall, and finally thru an
adjustable
Holley "T" style pressure regulator. I never had a problem with just one
pump
until a VERY hot day when the car just wouldn't pull at the end of the
straights. I jury rigged the second pump in and it ran great all the
rest of
the weekend. Post race found the original pump to be within spec and the
filter clear, so I properly fitted the second pump and ran it ever
after.
Wire the 2 pumps separately as we all know that whatever can go wrong,
will.
Forget the 1/8" fittings, go for the 1/4" stuff and use at least 3/8"
fuel
line.
Just throwin a little fuel on the fire...
Nick in Nor Cal
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