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Re: Quietest electric fuel pump
[Re: Stanton]
#1934046
10/18/15 12:26 AM
10/18/15 12:26 AM
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Joined: Jan 2003
Posts: 9,826
las vegas
70AARcuda
master
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master
Joined: Jan 2003
Posts: 9,826
las vegas
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run a high volume mechanical pump.....
Tony
70 AARCuda Vitamin C
71 Dart Swinger 360 10.318 @ 128.22(10-04-14 Bakersfield)
71 Demon 360 10.666 @122.41 (01-29-17 @ Las Vegas)
71 Duster 408 (10.29 @ 127.86 3/16/19 Las Vegas)
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Re: Quietest electric fuel pump
[Re: smos001]
#1934113
10/18/15 02:58 AM
10/18/15 02:58 AM
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Joined: Nov 2003
Posts: 36,040
Lincoln Nebraska
RapidRobert
Circle Track
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Circle Track
Joined: Nov 2003
Posts: 36,040
Lincoln Nebraska
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definitely mount it on some moderately soft rubber & make sure the mounting thru bolt does not make metal to metal contact either. As you know a non deadheaded pump (return line system) is quieter (that setup might not be applicable for your intended app) but just sayin
live every 24 hour block of time like it's your last day on earth
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Re: Quietest electric fuel pump
[Re: Stanton]
#1934207
10/18/15 12:14 PM
10/18/15 12:14 PM
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Joined: Mar 2007
Posts: 3,277
West Coast, USA
jbc426
master
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master
Joined: Mar 2007
Posts: 3,277
West Coast, USA
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Stanton, why not an in-tank pump? You can easily slip one in through the stock sending unit opening using your modified stock sending unit. The electrical bulkhead connector is the only thing you will see once it is installed.
The fuel tank won't need to be sumped or baffled, because the always full Fitech surge tank is the source of your high pressure fuel.
I have a similar set-up to the Fitech can that uses a smaller Carter external pusher pump plumbed to a surge tank with an internal high pressure pump at the front of the car. It's quiet, but the external pump is still annoying. I'm about to modify my system to use an in-tank pusher pump, because I don't like the noise and it will flow more fuel.
1970 Plymouth 'Cuda #'s 440-6(block in storage)currently 493" 6 pack, Shaker, 5 speed Passon, 4.10's
1968 Plymouth Barracuda Convertible 408 Magnum EFI with 4 speed automatic overdrive, 3800 stall lock-up converter and 4.30's (closest thing to an automatic 5 speed going)
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Re: Quietest electric fuel pump
[Re: Stanton]
#1934351
10/18/15 04:30 PM
10/18/15 04:30 PM
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Joined: Jan 2003
Posts: 25,785
Rio Linda, CA
John_Kunkel
Too Many Posts
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Too Many Posts
Joined: Jan 2003
Posts: 25,785
Rio Linda, CA
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I'm using a Mr. Gasket Micro 12S (5 psi) to feed my GO4 Command Center; you can hear it when the motor is off but not when running.
The INTERNET, the MISinformation superhighway
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Re: Quietest electric fuel pump
[Re: Stanton]
#1934413
10/18/15 06:58 PM
10/18/15 06:58 PM
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Joined: Mar 2007
Posts: 3,277
West Coast, USA
jbc426
master
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master
Joined: Mar 2007
Posts: 3,277
West Coast, USA
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I was under the impression that in-tank pumps are high pressure to feed efi. I'm game to use an in tank pump but it has to be 3-8 PSI. Who makes such an animal ?? As long as the fuel has some place to go with little to no restriction the modern efi pumps will flow that low of pressure. It's only when you restrict the flow that the pressure climbs. In my case, I have 3/8" feed and return lines going to my surge tank at the front of the car and returning all excess fuel to the fuel tank through a 3/8 return that I plumbed into my sending unit. The line pressure stays at or near 0 psi, but at a very high volume. Once the surge tank is full, it freeflows back to the tank. This way even if the pick-up is uncovered in the tank for a few seconds, the high pressure pump in the surge tank remains covered with fuel resulting in no interruption of flow to the injectors during spirited driving with low fuel in the tank. I've tested my set-up down to 2 gallons of fuel at Willow Springs with solid fuel pressure the entire time. All with a stock unmodified fuel tank.
1970 Plymouth 'Cuda #'s 440-6(block in storage)currently 493" 6 pack, Shaker, 5 speed Passon, 4.10's
1968 Plymouth Barracuda Convertible 408 Magnum EFI with 4 speed automatic overdrive, 3800 stall lock-up converter and 4.30's (closest thing to an automatic 5 speed going)
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Re: Quietest electric fuel pump
[Re: BigBlockMopar]
#1934566
10/18/15 11:55 PM
10/18/15 11:55 PM
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Joined: Jan 2003
Posts: 5,443
Indiana
YO7_A66
master
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master
Joined: Jan 2003
Posts: 5,443
Indiana
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I switched from the Holley RED to the Holley HP125. The RED is loud enough to be heard at idle at a stop light and the HP125 can not be heard at all under the same circumstances.
1970 YO7 A66 [Canadian Export] F8 Challenger
340 (Currently in shop for stroker assy.)
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Re: Quietest electric fuel pump
[Re: Stanton]
#1934809
10/19/15 10:25 AM
10/19/15 10:25 AM
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Joined: Nov 2003
Posts: 1,033
Madison, Wisconsin
chrisnben
super stock
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super stock
Joined: Nov 2003
Posts: 1,033
Madison, Wisconsin
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stanton-
usually the cheap pumps are vane geared, which are all loud- such as holley red, blue, etc. The quieter gerator drive's are nice. I have used both the Holley HP125 & Mallory Comp110. Both somewhat reasonably priced.
I am also looking into the same FITech system, looks promising. I already have the Holley HP125 so I will use that in back with the sump tank up front. I'm curious how "cool" that stays up in the engine bay. At minimum, it's 150 degrees in there. I suppose you could insulate it with wrap (might not look the best).
Or, I suppose for the extra cost of that sump ($375), you could also just use a good EFI pump like Aeromotive A1000 & their return regulator, plus a mini pusher pump like others suggested.
'70 Cuda "Badfish 2"- in the works
Home of MoPar University- We school 'em one at a time!!
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Re: Quietest electric fuel pump
[Re: Stanton]
#1934977
10/19/15 03:19 PM
10/19/15 03:19 PM
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Joined: Mar 2007
Posts: 3,277
West Coast, USA
jbc426
master
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master
Joined: Mar 2007
Posts: 3,277
West Coast, USA
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It seems to me that running a high pressure pump, two lines and a regulator to the surge tank/pump is not only overkill but a waste of money as well as unnecessary weight.
All you need to do is get fuel to the surge tank at the recommended pressure and there's no need for either a regulator or a return line. And it can be accomplished with a pump that costs less than $50. (the Mr. Gasket pump mentioned in a previous post).
The FITech recommendation is a 3 - 8 psi pump feeding the surge tank and this will supposedly support 1200 HP (not that I'm anywhere close to that!) Presumably they've done some testing !!! Not sure why you would want to add a regulator, Stanton. There is no need for one and it would be a waste of $. What you are trying to accomplish is providing your Fitech Can or surge tank with a steady high volume stream of fuel at very low pressure. The weight of a return line 10 or so feet of aluminum fuel line wouldn't likely exceed a pound and is pretty cheap. The system essentially free flows from the fuel tank, to the Fitech Can or surge tank and back to the fuel tank at a very high volume, but very low pressure as there is little restriction in the circuit. The benefits of this set-up are that you save a lot of money over using a custom baffled or sumped tank, your injected fuel will remain cooler AND you have a fuel system that will out perform an expensive custom fuel tank especially when the fuel is low in the tank. Running an in-tank pump plumbed to your can requires only a few extra feet of aluminum fuel line, a couple simple modifications to a stock sending unit and an electric pump that will fit through the sending unit hole. You are going to spend money on an external pump anyway, so that's kind of a wash. This set-up is a great alternative for those wanting a high performance fuel system to run EFI without having to buy or build an expensive custom fuel tank. It will provide a steady stream of fuel without having air pockets in your high pressure side of the system during hard acceleration, braking or cornering with less than a half a tank of gas. It also shortens the length of high pressure fuel line to a few feet in length rather than having it run the entire length of the car.
1970 Plymouth 'Cuda #'s 440-6(block in storage)currently 493" 6 pack, Shaker, 5 speed Passon, 4.10's
1968 Plymouth Barracuda Convertible 408 Magnum EFI with 4 speed automatic overdrive, 3800 stall lock-up converter and 4.30's (closest thing to an automatic 5 speed going)
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Re: Quietest electric fuel pump
[Re: Stanton]
#1934990
10/19/15 04:08 PM
10/19/15 04:08 PM
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Joined: Oct 2005
Posts: 8,871
Ontario, Canada
Stanton
OP
Don't question me!
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OP
Don't question me!
Joined: Oct 2005
Posts: 8,871
Ontario, Canada
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Originally Posted By Stanton
It seems to me that running a high pressure pump, two lines and a regulator to the surge tank/pump is not only overkill but a waste of money as well as unnecessary weight.
All you need to do is get fuel to the surge tank at the recommended pressure and there's no need for either a regulator or a return line. And it can be accomplished with a pump that costs less than $50. (the Mr. Gasket pump mentioned in a previous post).
The FITech recommendation is a 3 - 8 psi pump feeding the surge tank and this will supposedly support 1200 HP (not that I'm anywhere close to that!) Presumably they've done some testing !!!
Not sure why you would want to add a regulator, Stanton. There is no need for one and it would be a waste of $. What you are trying to accomplish is providing your Fitech Can or surge tank with a steady high volume stream of fuel at very low pressure. The weight of a return line 10 or so feet of aluminum fuel line wouldn't likely exceed a pound and is pretty cheap.
The system essentially free flows from the fuel tank, to the Fitech Can or surge tank and back to the fuel tank at a very high volume, but very low pressure as there is little restriction in the circuit. The benefits of this set-up are that you save a lot of money over using a custom baffled or sumped tank, your injected fuel will remain cooler AND you have a fuel system that will out perform an expensive custom fuel tank especially when the fuel is low in the tank.
Running an in-tank pump plumbed to your can requires only a few extra feet of aluminum fuel line, a couple simple modifications to a stock sending unit and an electric pump that will fit through the sending unit hole. You are going to spend money on an external pump anyway, so that's kind of a wash.
This set-up is a great alternative for those wanting a high performance fuel system to run EFI without having to buy or build an expensive custom fuel tank. It will provide a steady stream of fuel without having air pockets in your high pressure side of the system during hard acceleration, braking or cornering with less than a half a tank of gas.
It also shortens the length of high pressure fuel line to a few feet in length rather than having it run the entire length of the car. There is no provision on the FITech surge tank for a return line. So with no provision for a return at the unit it would have to be plumbed before the surge tank. So what do you do, just install a Tee near at the front so the fuel flows into the surge tank as well as back through the return line ?? Give me a recommendation for an in-tank pump that would suit the application. I understand the volume requirements at the surge tank. I also understand not needing high pressure up to the surge tank. But I need to get my head around how you run a return line without a regulator. With no regulator you are basically giving the fuel an open loop.
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Re: Quietest electric fuel pump
[Re: Stanton]
#1935027
10/19/15 05:12 PM
10/19/15 05:12 PM
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Joined: Jan 2003
Posts: 25,785
Rio Linda, CA
John_Kunkel
Too Many Posts
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Too Many Posts
Joined: Jan 2003
Posts: 25,785
Rio Linda, CA
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The FITech recommendation is a 3 - 8 psi pump feeding the surge tank and this will supposedly support 1200 HP (not that I'm anywhere close to that!) Presumably they've done some testing !!! It's not about how many horses it'll feed, it's about how long it'll feed 'em. IOW, it won't feed 1200 horses for an extended period of time but the capacity of the tank plus the inflow will probably be sufficient for the typical length of time you're producing 1200 HP (quarter mile run, dyno pull)
The INTERNET, the MISinformation superhighway
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