Electric Fuel Pump Mounting Location - Chevy Nova Forum
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Old 30th-October-2007, 10:18 PM   #1
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Electric Fuel Pump Mounting Location

I've been having issues with my mechanical fuel pumps. They have both been Holley 110gph models. Both died due to having fuel lines that were too small. I replaced all the fuel lines with 3/8" steel braid. Today I bought a Holley Blue electric fuel pump and I need to mount it as close to the tank as possible. Where and how have you guys been mounting your electric fuel pumps? Pictures would be great! I'm looking at fabricating a line that will keep the pump lower than the bottom of the fuel tank.

Thanks in advance!
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Old 31st-October-2007, 09:33 AM   #2
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You're going to have a less than ideal setup running an electric pump and a stock tank. The lines from the sending unit into the tank are anemic.

Electric pumps should be gravity fed. With a stock tank, you're gonna have to pull the fuel up and out of the tank.

Been there and done that. I sold the tank and installed a fuel cell.
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Old 31st-October-2007, 10:01 AM   #3
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Holley mechanical pumps flat out suck. If you want a real mechanical pump, get a Carter 172GPH. Flows 172GPH, puts out about 8psi so regulators need not apply, and has a huge -10AN inlet and -8AN outlet. If you're still hellbent on the electric pump, you should really sump the tank. Holley Blue pumps need to be gravity fed or it's life will be short lived and may have fuel starvation at the top end of the track. My friend Ed uses a stock tank without a sump with an electric pump and runs nearly in the 9s, but his pump is much better than a Holley Blue, and doesn't need to be gravity fed.
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Old 31st-October-2007, 11:08 AM   #4
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The Mallory and the Edelbrock electric pumps are MUCH quieter and R E L I A B L E than the Holley blue or red pumps. They also pull better than the Holleys.
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Old 31st-October-2007, 11:21 AM   #5
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I fabricated a bracket that will mount the pump just below the bottom level of the tank. It'll go between the diff. cover and the front of the tank. I also removed the tank and installed a 3/8" pickup inside the tank to assure fuel flow without restriction. I'll post some pics when it's done. I bought the pump yesterday so I hope it turns out to be okay. My car is more like a 13 second car...
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Old 31st-October-2007, 11:25 AM   #6
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I mounted mine on the back wall of the cabin (right where the rear seat belt bolts come thru). I also put the filter there. I'm running a cell and it seems to feed ok.
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Old 31st-October-2007, 06:41 PM   #7
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I almost bought a fuel cell but decided to open the tank and replace the pickup instead. The pump is now mounted and it look great. I ran out of time between work and halloween so I didn't get to finish plumbing the lines and wiring the pump in. Should have it running tomorrow. I'll get some pics tomorrow and post them here too.
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Old 31st-October-2007, 06:59 PM   #8
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Quote:
Originally Posted by higleyml View Post
I mounted mine on the back wall of the cabin (right where the rear seat belt bolts come thru). I also put the filter there. I'm running a cell and it seems to feed ok.
I mounted mine in that location as well near the unibody frame. It actually sits lower than the tank at that location and I get instant pressure when I activate it. It seems to have a siphon effect there and doesnt seem to put any strain on the pump.
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Old 31st-October-2007, 08:29 PM   #9
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Quote:
Both died due to having fuel lines that were too small
I can't see why a small fuel line would kill 2 pumps, and a 13 sec. car should work just fine with a stock mechanical pump. I stepped up to a BG mechanical when my car was running mid 11's, but it was more than the car needed.
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Old 31st-October-2007, 08:46 PM   #10
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If you're drag racing and need gravity feed turn the stock tank around so the "sump" is in the rear.Mount the pump behind the "reversed" tank and go racing.This puts more weight to the rear also. Wheels UP!

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Old 31st-October-2007, 08:56 PM   #11
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Here mine is mounted to the passenger side frame rail. Just the rear tire. The fuell cell is just in front of it. above the axle. Here is a pic of mine. Not a very good one, but a pic none the less a pic.
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Old 31st-October-2007, 10:54 PM   #12
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Originally Posted by bowtie0069 View Post
I can't see why a small fuel line would kill 2 pumps, and a 13 sec. car should work just fine with a stock mechanical pump. I stepped up to a BG mechanical when my car was running mid 11's, but it was more than the car needed.
I don't know, the folks at Holley tech support seemed to think that it could cause the pump to fail. They said it needed 3/8" line to supply enough fuel to the pump. I agree totally that the mechanical pump is more than adequate for a 13 second car. The bottom line is that the pressure of each of these pumps was down to 2psi when I removed them. That's not enough to run my stock Chevy 1500 truck.

This electric pump mounted like I'm mounting it is more of that free advice from Jon Kaase's Race shop.
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Old 1st-November-2007, 05:50 PM   #13
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The bottom line is that the pressure of each of these pumps was down to 2psi when I removed them. That's not enough to run my stock Chevy 1500 truck.
Neither is 7, 8, or 9psi, being that your truck is fuel injected and operates at a high pressure. I understand what you're saying, I'm just being my arrogant self.

I'll be surprised if that Holley Blue lasts. It's not exactly the best electric pump. Between having to pull the fuel up out of the tank, most likely a restrictive filter, and a dead head regulator, this pump will have a lot of strain on it. I hope you don't do a lot of street driving.
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Old 1st-November-2007, 06:20 PM   #14
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Personally, if you are still using the stock tank, use a mechanical pump. I have been running a Carter 172GPH mechanical pump for quite a while. I even ran one on my dirt track car. I have 1/2 fuel line running from the fuel cell to the pump. I have run low 11's on 150HP nitrous with this setup and never had a problem.

I also had a Holley Blue for a while, and although I never had any problems with it, I got absolutely sick of listening to it. So off it came in favor of a mechanical pump.

The setup I am working on is going to keep the mechanical pump for the engine, and using a front mounted fuel cell with an electric pump dedicated to the nitrous.

Anyway, that is what I would do. Trying to pull fuel out of the stock tank with an electric pump is going to make the life of the pump very short.
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Old 1st-November-2007, 09:14 PM   #15
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Originally Posted by NOVACA1N View Post
Neither is 7, 8, or 9psi, being that your truck is fuel injected and operates at a high pressure. I understand what you're saying, I'm just being my arrogant self.

I'll be surprised if that Holley Blue lasts. It's not exactly the best electric pump. Between having to pull the fuel up out of the tank, most likely a restrictive filter, and a dead head regulator, this pump will have a lot of strain on it. I hope you don't do a lot of street driving.
That was pretty funny. I don't really know what I was thinking saying my fuel injected truck would run on 2 psi! I'm not real impressed with the electric pump either. I'll probably switch to a quality (As in NOT Holley) mechanical pump next week and take this turd back. The regulator that came with it is not working right...
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