I have not been following this thread very closely and hope that the
"Blue Pump" being discussed is the Holly brand. If this is the case, my
experience is that the blue pump is sold with a regulator that will
adjust the pressure down as low as 16 pounds (Too high for our
purposes). But I found that if one buys the lower pressure regulator
from Holly, the blue pump can be regulated down to work well on
Triumphs. I used this combination on Tiny Tim with twin DCOEs until I
swapped to the Honda Engine and transplanted the pump into Huxley with
twin SUs where it is working fine at present.
Cheers,
Joe
-----Original Message-----
From: owner-fot@autox.team.net [mailto:owner-fot@autox.team.net] On
Behalf Of BillDentin@aol.com
Sent: Saturday, August 09, 2003 7:51 AM
To: Gt6steve@aol.com; henry@henryfrye.com
Cc: FOT@autox.team.net
Subject: Re: Fuel Pumps
In a message dated 08/09/2003 9:28:36 AM Central Daylight Time,
Gt6steve@aol.com writes:
> I wonder if your Blue pump is simply too large to adjust down to 3 PSI
at
> our flow rates?? I've heard the buzzing you describe on occasion,
typically
> on
> startup. As a rough guide I use 3-4 gallons in a twenty minute race.
> Steve Smith in Las Vegas
>
Amici:
I sure agree with this. This was one of our gremlins a few years ago.
Holley offers two basic fuel pumps, and the low end of one is right
about the high
end of a maximum ideal fuel pressure...especially for SUs. It was
nearly
impossible to 'adjust' it to that low end of the pump's pressure. We
replaced it
with the lower pressure pump. I run about 1 1/2 pounds of pressure now,
and
it seems to work fine.
Bill Dentinger
|