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#1 |
Registered User
![]() Join Date: Dec 2014
Location: Plainfield il.
Posts: 643
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Inline efi fuel pump location?
I installed my under bed tank and now I'm about to install my inline efi fuel pump. The fuel gets fed from the bottom back of the tank which is much lower than the fame rail where I want to mount the pump. Does my pump have to be gravity fed or will it be fine pulling the fuel up hill? Not sure if it's gonna be making my pump overwork?
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#2 | |
Registered User
Join Date: Oct 2014
Location: Mesa AZ (Near Phoenix)
Posts: 2,302
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Re: Inline efi fuel pump location?
Quote:
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"Life is too short to drive a boring vehicle". Later, Wayne ![]() |
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#3 | |
Registered User
![]() Join Date: Dec 2014
Location: Plainfield il.
Posts: 643
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Re: Inline efi fuel pump location?
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#4 |
Registered User
Join Date: Feb 2003
Location: Santa Ana, CA
Posts: 2,191
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Re: Inline efi fuel pump location?
You will probably starve the pump and burn it up eventually if it is located that far above the bottom of the tank. Now is the perfect time to install an in-tank pump while you have everthing exposed. An in-tank pump will run cooler, quieter, and much longer than a gravity fed external pump. Your EFI will than you with better performance as a result of consistent fuel pressure.
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#5 |
Registered User
Join Date: Dec 2007
Location: Southern CA
Posts: 210
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Re: Inline efi fuel pump location?
We started with a similar setup and had fuel delivery issues from day one. Installed an in tank unit and immediately ran perfect. Much easier to do it right the first time. Also hard line and steel braid is your friend.
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71 C-20 Custom Camper California Truck |
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#6 |
Registered User
![]() Join Date: Dec 2014
Location: Plainfield il.
Posts: 643
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Re: Inline efi fuel pump location?
Unfortunately I'm not gonna be able to use an intank pump. The tank I bought has no way to drop a pump into it. I'm gonna have to fab a bracket at the back of the tank right at the outlet so I can mount my pump there.
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#7 |
Registered User
Join Date: Oct 2014
Location: Mesa AZ (Near Phoenix)
Posts: 2,302
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Re: Inline efi fuel pump location?
No, I guess it doesn't. It comes out of the fuel cell mounted in the truck and drops into the pump/filter.
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"Life is too short to drive a boring vehicle". Later, Wayne ![]() |
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#8 |
Registered User
Join Date: Aug 2009
Location: Auburn
Posts: 78
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Re: Inline efi fuel pump location?
You may not want to cut a hole in that gorgeous tank, but just in case... Aeromotive has a an in-tank pump for exactly this situation.
http://aeromotiveinc.com/phantom-fuel-system/ |
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#9 |
Registered User
Join Date: Dec 2007
Location: Southern CA
Posts: 210
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Re: Inline efi fuel pump location?
We used this. Replaces the stock pickup and can be adjusted in height: http://www.tanksinc.com/index.cfm/pa...prod/prd84.htm
In your picture it goes in where that gold plate is on the driver front of the tank
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71 C-20 Custom Camper California Truck |
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#10 | |
Registered User
![]() Join Date: Dec 2014
Location: Plainfield il.
Posts: 643
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Re: Inline efi fuel pump location?
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Have any of you guys ever run your fuel lines down the drivers side frame rail? |
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#11 |
Registered User
Join Date: Feb 2003
Location: Santa Ana, CA
Posts: 2,191
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Re: Inline efi fuel pump location?
Why so against cutting a hole in the top of the tank to drop in a fuel pump? I did it when I installed my Aeromotive in-tank pump. The kit comes with all the fittings and seals to make it look like a factory install, not a frankenstein hack job. Super easy to install, especially on a new tank that has not had any fuel in it yet like yours. It takes A-N fittings too on the outlets and return line inlet, so no hose barbs and hose clamps.
I understand it is pretty expensive (I paid something like $500 for my Aeromotive in-tank pump kit). But it was money well spent in my opinion because my fuel pressure is always rock solid and my fuel injection runs perfectly. |
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#12 | |
Registered User
![]() Join Date: Dec 2014
Location: Plainfield il.
Posts: 643
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Re: Inline efi fuel pump location?
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#13 | |
Registered User
Join Date: Dec 2007
Location: Southern CA
Posts: 210
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Re: Inline efi fuel pump location?
Quote:
No cutting required. You could easily run the fuel line down the driver side.
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71 C-20 Custom Camper California Truck |
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#14 |
Registered User
Join Date: Dec 2007
Location: Southern CA
Posts: 210
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Re: Inline efi fuel pump location?
Basically your choices:
1. Mount the external pump on the bottom and back side of your gas tank = dangerous location. Risk starving and burning up pump + potential damage from road hazards. 2. Cut new hole in tank = requires cutting. Need to make sure you remove all debris. 3. Mount the unit I linked right in your sending unit hole = requires removing and attaching float level to the new pump assembly.
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71 C-20 Custom Camper California Truck |
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#15 | |
Registered User
![]() Join Date: Dec 2014
Location: Plainfield il.
Posts: 643
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Re: Inline efi fuel pump location?
Quote:
Thanks for all the help guys. I need to start doing some more research before I pull out my wallet and buy things! |
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#16 |
Registered User
![]() Join Date: Dec 2014
Location: Plainfield il.
Posts: 643
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Re: Inline efi fuel pump location?
Just bought the aeromotive set up. I'll post pics after its installed!
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#17 | |
Account Suspended
Join Date: Jan 2007
Location: Tucson
Posts: 2,183
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Re: Inline efi fuel pump location?
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#18 |
Registered User
![]() Join Date: Dec 2014
Location: Plainfield il.
Posts: 643
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Re: Inline efi fuel pump location?
Just installed it. Nice clean look and no pump on my rail.
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