[Fot] Holley Red Top fuel pump question

[gt6steve at aol.com]

Yes, I did have feed problems when I initally installed toe Holley Pump.  I now mount them inder the boot floor either side .  I consider them to be well protected by the frame crossmember and the lines come UP thru the floor and run internally.  Never been a problem since the install.  The twin setup is pure redundancy and almost certainly not necessary.  Steve



-----Original Message-----
From: Bud R via Fot <fot at autox.team.net>
To: FOT <fot at autox.team.net>
Sent: Sat, Feb 4, 2017 12:19 pm
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)



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