Bud,
I originally ran a blue Holley pump above the top level of my fuel cell with
around two feet of hose to it, without a problem and I now use a Facel
cylindrical type in the same spot, still with no problems. The Holley was too
loud for anything but full throttle race conditions in my TR3. It buzzed
terribly loud. If I mounted the Holley at the end of a ten foot stick outside
the car, it might have been perfect.
The pump is mounted to the roll cage tube in the trunk and although rubber
mounted, perhaps the intense buzzing sound was amplified through the cage
tubing.
I still have the Holley as a back up.
I know many use these Holley pumps without problems, that's why I initially
chose it. I just couldn't tolerate it's buzz during occasional street use or
touring. Besides the noise it worked fine, above and away from the tank.
// Dave H.
----- Original Message -----
From: "Bud R via Fot" <fot at autox.team.net>
To: "FOT" <fot at autox.team.net>
Sent: Saturday, February 4, 2017 9:58:55 AM
Subject: [Fot] Holley Red Top fuel pump question
List,
Holley recommends that their fuel pump be installed so that the pump is lower
than the fuel level. Has anyone had a problem with the pump installed
differently?
My dilemma is that my fuel cell sits low (in a cut out with brackets) in the
boot of my Spitfire and the previous owner had installed the old Holley pump
lower than the fuel level but in what I felt like was a dangerous place as it
was exposed under the car and the fuel lines were also routed where they could
have gotten easily damaged (basically very close to the wheel well). I?m moving
the fuel pump and the lines to be inside the boot but it is not possible to
make the pump sit entirely below the fuel level since the bottom of the fuel
cell sits below the floor of the boot. The chosen location makes the pump sit
about 1/3 of the way from the fuel cell bottom.
I know Holley wants to take advantage of the siphoning effect (apparently
because they push fuel better than they pull fuel) but does that matter as long
as the fuel pressure is maintained at the proper level for my carbs? I figure
if I run with the fuel cell full (8 gal) the fuel level will be above the pump
the majority of the time. I?ve been burning about 3-4 gallons per (20 min.)
race.
Has anyone had issues with the Holley fuel pumps not being installed exactly
like Holley says? I?ve seen some other Spitfire racers with the Holley fuel
pump NOT below the fuel level so I?m hoping it works for me to do the same. I?m
thinking about one of the two locations shown in the pics. Right in front of
the fuel cell is my preferred location at this point as the other location to
the side of the fuel cell would be more vulnerable in a crash situation.
Thanks
Bud Rolofson
Extreme Parts Racing (more than just a haircut)
71TR6 CC57365 (Good 6)
71 Spitfire MK IV Race Car #3
69 Spitfire MK III (back up FE engine/dinghy car)
93 Minnie Winnie Race Support Vehicle
77 Z-50A Hardly Davidson Honda Mini-Trail Bike (Triumph Pit Bike)
_______________________________________________
fot at autox.team.net
http://www.fot-racing.com
Archive: http://www.team.net/archive
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