Holley electric fuel pump

[Jim Potteiger]

Need some advice.



I have a 2003 Cummins and want to install another diesel booster pump and have been looking at E-Bay. I'm looking at the red and blue Holley electric pumps. The red head is good for 7-9 lbs of pressure. The blue head is good for approx. 17lbs of pressure. The blue head requires a fuel regulator. Has anyone used this type fuel pump in conjunction with the existing lift pump? I not sure which pump to buy. I ordered the Westach fuel pressure gauge from Geno's today. I ordered the 0-30 pressure gauge. Sure need some help. Thanks, Jim

 

[badams1]

Badams1 here. I too am in pursuit of a lift pump solution for my 03 HO and I am looking at the Stanadyne system because I can't use the FASS product. The problem is that I dont know how much pressure the 03 lift pump suction can handle with out causing harm. See my thread on Stanadyne question posted today. I have the Banks six shooter and no fuel gauge but I suspect that I might be pulling more fuel than the stock system is capable of putting out under WOT.

 

[robertyoke]

mark at tst is using the holley pumps they used the blue pump and the red. they said the difference is in the head of the pump with different springs and check balls. they also said they have put as much as 30psi to the cp3 with out problems.

 

[Jim Potteiger]

Robertyoke



Thanks for the info. Sounds like I'll be okay using either the red or blue pump. Sure will save alot of money using the Holley pump. I have a bid in on E-Bay for the red head pump. Thanks Jim

 

[Rineholio]

If you go to the Northwest Bomber site, there's a thread that has part numbers for an electric Carter pump and all the hardware. Also, another guy posted that he had been using the Holley Blue for 100,000 miles with no problems.

 

[ACerf]

May I ask what is the advantage in adding another pump?



Badams1... . why can't you use the FASS system?

 

[Prairie Dog]

I've heard the Holly is very loud and the FASS isn't audible at all. Anybody have experience with both?

 

[John - K5AWO]

The holley Blue pump comes with a pressure regulator in the box. I bought one and put it on my truck with a bypass valve. If the factory lift pump dies, I open the valve and turn on the Holley pump and continue on my way. Fix the bad lift pump when time allows. I love good VP44's



Holley FUEL SYSTEMS



110 GPH "Blue"

Electric Fuel Pump



Part #: 12-802-1

Distinctive "BLUE" logo.

Flows 110 GPH (free flow).

Flows 88 GPH at 9 PSI.

Maximum pressure is 14 PSI.

Includes P/N 12-803 fuel pressure regulator.

Motor draws only 3 Amps current.

7-1/2 Amp fuse recommended.

Provides constant fuel flow with no pulsation.

Has externally accessible pressure relief valve (max. 14 PSI.

Rotor/Vane pump design is more tolerant of contaminated fuels.

Weighs only 3 lbs.

Includes mounting bracket.



http://holley.com/HiOctn/ProdLine/Products/FMS/FMSFP/12-802-1.html



Hope that helps.

 

[banshee]

I'm running a blue in line with the stock lift pump. I mounted it on a custom made bracket, cut the stock steel line, and ran a compression fitting to SS bradied Aeroquip line. I also replaced the forward line from the filter to the CP3 with stainless, elbows, a gauge block, and Weber carb adapters. The setup went on clean, and I have 3 other systems on trucks near where I live. My pressures max out at 27psi at idle, 25 at cruise, and drop to 17 at WOT on EZ level 4 TST level 4-4. I haven't gone any higher on the settings yet (9-9) due to high boost pressures with the weenie stock charger, but I don't anticipate them dropping much lower. The pump is VERY quiet, and you can only barely hear it at idle if you're listening for it. As soon as you give the truck any fuel the engine overpowers the noise. All you get is the electric motor noise, so it what little sound there is sounds natural. It's been on my truck for 4 months and about 7,000 miles now. So far, so good.



John

 

[John - K5AWO]

Originally posted by banshee

I'm running a blue in line with the stock lift pump.

----///----

My pressures max out at 27psi at idle, 25 at cruise, and drop to 17 at WOT



John

Hi John. Good to see your report. I am assuming from the description that you are NOT using a pressure regulator AFTER the Holley pump? This would seem to be the case with the pressures you reported.



It is interesting to note that you are getting the 10# drop in psi at WOT. This correlates to what others have reported at lower operating pressures.



To me, IMO, this is indicative of restrictions in the fuel supply lines/fittings.



With your approach though, there would never be a case where the VP44 would not have enough fuel supply to ensure lubrication/cooling.



Have a nice day,

John

 

[banshee]

John,



You're right, I'm not using the regulator. I didn't feel it was needed since the fuel system has it's own return lines at the filter and the CP3. I'm just pushing the fuel harder up to those return fittings and letting the stock setup do the work. I think the pressure drop is coming mostly from the stock lift pump. If it doesn't keep up with the demand of 9-9 on the TST with a set of injectors then it will come off and I'll try something else. The fuel lines are as big as they can be (-6 AN) without drilling out the threads in the filter canister and CP3 pump to something larger. IMO the dual setup is ideal... kind of like twin turbos for the fuel system. The low amp draw motors should last a long time on the holleys. For the VP44 I think the Red pump makes a better match with the stock 2nd gen lift pump. Idle pressures are about 22-23 and drop to about 16psi with a 500rwhp 24V motor. Pressures above 25 psi are hard on the diaphragm & o-rings inside the pump, but the CP3 looks to feed right into the internal gear pump. Hope this helps.



John

 

[John - K5AWO]

Originally posted by banshee

Pressures above 25 psi are hard on the diaphragm & o-rings inside the pump,

That was exactly what I was curious about. The upper limit before things start to go awry.



Thanks for the super info.



One thought though... as to pressures on the diaphram. Would it not only "experience" the actual differential pressure across it? In your case, it is being supplied with ~12-17 psi.



IMHO, the o-ring seals would be the problem area. Not the diaphram.





John

 

[banshee]

John,



I'm referring to the diaphragm inside the VP44... not the stocker or the holley. In holley/LP cases, yes, they would only see the differential pressure between the intake & exhaust sides and not the full 25-27. 30 psi is probably a safe max on the new CP3s... there's really no gain about that anyway.



John

 

[Jim Potteiger]

John and banshee,



Hey thanks for the info. Couple of questions, I'm thinking of installing the Holley pump near the fuel tank. Is this location okay? Why is the regulator necessary and is it pressure adjustable? Thanks guys, Jim.

 

[banshee]

Back by the tank is okay, but mounting locations are a little harder to find on the new trucks vs. the 2nd gens. I didn't want to drill the frame, so mine is mounted forward of the cross brace on a custom made bracket. It's pretty level with the line coming forward (height wise) which is the main concern. No need to run the regulator... just put the pump in line behind the stock LP and let 'er go.

 

[John - K5AWO]

I put the Holley on the frame right at the point where the steel fuel lines are. The Holley pump has an internal pressure bypass (recirculates) that is adjustable up to a max of 14 psi. The pressure regulator supplied with the pump that goes inline is also adjustable, but does not use a bypass. Just restricts the flow to the pump by adding back pressure. Holley designed the pump for this type service and it has been very reliable.



The RED pump is designed designed for 5. 5-6. 0 psi from the factory. It might be a better choice as a pusher to the stock pump.



In my installation, I chose to use two tee fittings and a ball gate valve. The pump is connected to the tee side of the fittings. The gate valve is in series with the fuel line and in PARALLEL with the Holley pump.



I leave the ball valve open for normal operation and the Holley pump off. If I see the fuel pressure start to drop, I close the ball valve and turn on the Holley pump. Presto! Fuel pressure again with out having an anxiety attack.



Like I said before, I love my VP44 and I want to keep it happy with me.



I am going to install a pressure sensor set to 10 psi and use it to sound an alarm if my lift pump fails and my eyeballs are looking at the local college co-eds. I can dream can't I?

 

[Jim Potteiger]

Thanks for the advice.



I'm thinking of operating the Holley pump full time. To do this I need to make an electrical connection into the ignition on source. So when the key is turned on the Holley will start running. Should I use a relay where the ignition on would activate the relay and close the contacts coming from say a direct battery source of power to the Holley pump. Hope this makes sense. Thanks for your thoughts. Jim

 

[John - K5AWO]

I would use a relay just for grins. It pulls a nominal 3. 0 amps per specs. I have not measured that though. using a relay with the Holley recommended 7. 5 amp fuse is ideal.



You could pick up the hot lead off of any switched voltage source. The cigar lighter is convienent on the 3rd gen trucks.

 

[dieselpilot1969]

Originally posted by Rineholio

If you go to the Northwest Bomber site, there's a thread that has part numbers for an electric Carter pump and all the hardware. Also, another guy posted that he had been using the Holley Blue for 100,000 miles with no problems.

found it, with what all that guy has listed it totals up to close to 250~275 bux. Might just as well go w/ DD carter pump and keep factory pump in a vacuum pack bag under seat as spare.

 

[LFarrar]

bLUE

I have Holley blue pump with out regulator only. It is way more noise, but I know it is running!!!