Re: Anyone retro fit an electric in tank fuel pump?
[Re: GLR]
#2244990
01/31/17 10:46 PM
01/31/17 10:46 PM
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Joined: Nov 2003
Posts: 2,938 GA
roadrunninMark
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Re: Anyone retro fit an electric in tank fuel pump?
[Re: GLR]
#2245120
02/01/17 02:22 AM
02/01/17 02:22 AM
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Joined: Oct 2003
Posts: 21,345 Marysville, O-H-I-O
70Cuda383
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Marysville, O-H-I-O
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Are these retro pumps fitted into the tanks any quieter than external electric pumps?
**Photobucket sucks**
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Re: Anyone retro fit an electric in tank fuel pump?
[Re: 70Cuda383]
#2245140
02/01/17 02:56 AM
02/01/17 02:56 AM
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Joined: Aug 2004
Posts: 3,310 Walnut Creek, CA
blown340
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Are these retro pumps fitted into the tanks any quieter than external electric pumps? I have the tanks inc setup in my challenger and am very happy with it. It is dramatically quieter than the old external pump I had. -Jon
70 challenger convertible. 340/5 speed. blown, intercooled, efi, blah blah blah
71 valiant scamp 318/A833OD/AC/PS
00 dakota RC 4.7L 5 spd autoX'r. SRT10/T56 swap in process
73 W200 Power wagon, PTO winch, 4 spd
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Re: Anyone retro fit an electric in tank fuel pump?
[Re: blown340]
#2245262
02/01/17 01:27 PM
02/01/17 01:27 PM
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Joined: Jun 2008
Posts: 1,822 Colorado
denfireguy
top fuel
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top fuel
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As one of the few people who have had both the Tanks, Inc and Specatra tanks in the same vehicle, I will highly recommend the Spectra. Better fitment, better access to hose lines, much more accurate fuel sender. The Tanks sender is a Ford unit and will not go to full with a full tank. Craig
2014 Ram 1500 Laramie, 73 Cuda Previous mopars: 62 Valiant, 65 Fury III, 68 Fury III, 72 Satellite, 74 Satellite, 89 Acclaim, 98 Caravan, 2003 Durango Only previous Non-Mopar: Schwinn Tornado
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Re: Anyone retro fit an electric in tank fuel pump?
[Re: GLR]
#2245934
02/02/17 03:14 PM
02/02/17 03:14 PM
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Joined: Mar 2007
Posts: 3,278 West Coast, USA
jbc426
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I would like to use an in tank fuel pump in my 71 Charger I will be building. I am running a 383 with a six pack and I have a 3/8 fuel line. If anyone has a suggestion for a fuel pump or know of someone making a new tank with a pump, let me know. Thanks! The problem you are going to have is that no one makes an intank pump that flows a significant volume of fuel at low pressure. There are some low volume, low pressure pumps out there, but they barely pump enough to feed a healthy carbureted motor. You are going to have to run a return style regulator with a properly sized return line. Any pump that does flow enough fuel does it at high pressure. Sure you can use a high pressure pump with high flow, but it will be heating your fuel all the time it is running. Some of the higher volume, high pressure pumps put the equivalent amount of heat into the fuels as two 240 watt light bulbs would. That's significant, but a lot of people do it on their non-PWI fuel systems. I've been mulling this issue over for several years, and have finally come up with a solution for a high volume system that can easily support over 700hp, and will keep the fuel cool and air free at the same time. Since you have a stock tank and a six pack induction, you could consider doing this too. Cut open an access hole on the top of your tank to match a filler plate that will seal it once done, install a properly sized Holley Hydromat and a Fuel lab 40402 low pressure 2 speed pump in there. Plumb a 1/2" feed and return line to a return style regulator. Trigger the high speed pump voltage using a throttle shaft mounted switch that activates the high speed voltage to the pump when the outboards begin to open. Done. No special fuel tank, no ineffective baffles or sumps and a solid supply of cool, air free fuel even at very low fuel tank volumes. EFI cars have it made, as they can use the same tank set-up with a Pulse Width Modulated EFI pump and no return. Sweet, effective and moderately price.
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: Anyone retro fit an electric in tank fuel pump?
[Re: DaytonaTurbo]
#2246581
02/03/17 03:40 PM
02/03/17 03:40 PM
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Joined: Mar 2007
Posts: 3,278 West Coast, USA
jbc426
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Fuel expands when it is heated and contracts when it is colder. The thermal energy is denser in cold fuel than hot fuel. Air temperature affect the density of air as well. My car makes the most power with cold air and cool fuel. Remember Cool Cans?
Yes, the pressure of EFI systems keeps the fuel from vaporizing in the lines, but that doesn't negate the effect of pre-heated fuel on performance.
Properly designed fuel systems include adaptations to reduce the heat introduced into the fuel system as a result of high performance fuel pumps running at max output unnecessarily. It also adds to the life of the pump to run them at reduced output when max flow is not needed.
Fuel systems have really undergone some dramatic evolution in the past 5 to 10 years and not everyone is ahead of the curve, because of the pace of development. Its really cool for 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: Anyone retro fit an electric in tank fuel pump?
[Re: jbc426]
#2246937
02/04/17 12:30 AM
02/04/17 12:30 AM
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Joined: May 2005
Posts: 598 NC, USA
davenc
mopar
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mopar
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NC, USA
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The problem you are going to have is that no one makes an intank pump that flows a significant volume of fuel at low pressure. There are some low volume, low pressure pumps out there, but they barely pump enough to feed a healthy carbureted motor.
JBC426, Can you explain this more? If I look at the TanksInc website, the GPA-4 pump chart there indicates the pump can do 72GPH below 10PSI at 12VDC. Why won't that work with a high power carburated application? I understand you would need a return style regulator.
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Re: Anyone retro fit an electric in tank fuel pump?
[Re: davenc]
#2247032
02/04/17 03:06 AM
02/04/17 03:06 AM
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Joined: Mar 2007
Posts: 3,278 West Coast, USA
jbc426
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The problem you are going to have is that no one makes an intank pump that flows a significant volume of fuel at low pressure. There are some low volume, low pressure pumps out there, but they barely pump enough to feed a healthy carbureted motor.
JBC426, Can you explain this more? If I look at the TanksInc website, the GPA-4 pump chart there indicates the pump can do 72GPH below 10PSI at 12VDC. Why won't that work with a high power carburated application? I understand you would need a return style regulator. That is one of the higher, low pressure GPH rated pumps I've heard of. I'm shooting for just over 700hp and the smallest pump I'd consider running flows 160 GPH, which the pump manufacturer claims will support 800 HP. The 10 HP per GPH formula they are using seems optimistic to me. One thing to keep in mind is that the pump you are referring to will be running at max output at all times in a bypass system. This introduces heat and accelerated pump wear. One of the reasons I picked the pump I did was due to the two speed function of the pump. Fuelabs makes the pump, and it is their lowest output model.
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: Anyone retro fit an electric in tank fuel pump?
[Re: GLR]
#2379366
09/30/17 03:01 PM
09/30/17 03:01 PM
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Joined: Sep 2007
Posts: 14,889 up yours
Supercuda
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up yours
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You have any sump or baffling in there to prevent the pump from sucking air?
They say there are no such thing as a stupid question. They say there is always the exception that proves the rule. Don't be the exception.
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