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in tank pump and fuel regulator install questions #1368602
01/12/13 08:57 PM
01/12/13 08:57 PM
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Canada
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demon Offline OP
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demon  Offline OP
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I am putting an in tank pump from Tanks Inc in a 68 B body. it is a street car and since I am not running a sump,I have to install the pump at the deepest part of the tank which is the front. I am using the square pump recess which will be cut in the front corner. It has a fuel tray which should help starvation. Anyone have any personal experience or tips before I chop a hole in the new tank?
Next question. I bought am Aeromotive 13129 Fuel regulator for the MSD Atomic injection as suggested by MSD. The installation instructions are horrible and vague. Anyone have tips and or pictures of their install? Thanks !

Re: in tank pump and fuel regulator install questions [Re: demon] #1368603
01/12/13 11:38 PM
01/12/13 11:38 PM
Joined: Mar 2007
Posts: 3,288
West Coast, USA
jbc426 Offline
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I'd skip the whole tank cut and weld and plumb a simple surge tank system. It's easier, more effective and probably costs about the same or less.

You will still need a low pressure fuel pump mounted near the tank with a return line, but can use your exsisting fuel line to the front of the car to supply fuel to the surge tank. This side of the system operates at near 0 psi with a high fuel flow volume.

It will supply a rock solid fuel steam even when you are down to the last few gallons. Any bubbles/cavitation are quickly pumped back to the tank in the return line and kept away from the high presure pumps inlet.

If you look closely in this picture, you can see the entire high pressure side of my fuel injection system, surge tank with internal pump and top mounted bypass regulator, billet fuel rails and a few feet of AN line. Simple to install too.

My fuel tank is bone stock with the exception of a 3/8's fuel line and return fitting plumbed on the sending unit.

Last edited by jbc426; 01/13/13 01:17 AM.

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)
Re: in tank pump and fuel regulator install questions [Re: jbc426] #1368604
01/12/13 11:44 PM
01/12/13 11:44 PM
Joined: Mar 2007
Posts: 3,288
West Coast, USA
jbc426 Offline
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It works similar to this schematic.

7544404-SurgeTank.gif (107 downloads)

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)
Re: in tank pump and fuel regulator install questions [Re: jbc426] #1368605
01/12/13 11:45 PM
01/12/13 11:45 PM
Joined: Mar 2007
Posts: 3,288
West Coast, USA
jbc426 Offline
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jbc426  Offline
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The surge tank I used looks like this inside. You can also get them plumbed for an external high pressure pump like shown in the diagram.

It's probably the easiest, most effective way to retrofit a high performance EFI fuel system into previously non-EFI cars.

Last edited by jbc426; 01/12/13 11:48 PM.

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)
Re: in tank pump and fuel regulator install questions [Re: demon] #1368606
01/13/13 01:00 AM
01/13/13 01:00 AM
Joined: Jun 2003
Posts: 52,972
Romeo MI
MR_P_BODY Offline
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As said .. put a sump in it... the front of the tank
is a BAD spot to mount your pump UNLESS you run the
pick up to the rear... the fuel WILL be in the rear
on acceleration... if you go with the sump DONT cut
the area out where the sump is welded on... put 2 or
3 2" holes in the bottom of the tank so the bottom of the
tank acts like a surge wall(as you accelerate the fuel
cant come out of the sump.. if you are mounting the
pump internally you might want to reinforce the
top of the tank so you have a access panel(for the
screw)

7544480-DSC00046.JPG (113 downloads)
Re: in tank pump and fuel regulator install questions [Re: jbc426] #1368607
01/13/13 01:17 AM
01/13/13 01:17 AM
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MB,CAN
PC-CHARGER Offline
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Very nice setup. I was just getting ready to refab my fuel cell with a different sump setup etc. but your two tank system looks like a nice alternative. I'll have to give this some more thought now.

Thanks

Re: in tank pump and fuel regulator install questions [Re: PC-CHARGER] #1368608
01/13/13 01:22 AM
01/13/13 01:22 AM
Joined: Mar 2007
Posts: 3,288
West Coast, USA
jbc426 Offline
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jbc426  Offline
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Quote:

Very nice setup. I was just getting ready to refab my fuel cell with a different sump setup etc. but your two tank system looks like a nice alternative. I'll have to give this some more thought now.

Thanks




It's what all the high horsepower import tuners are using. It sure makes a lot of sense for retrofitting my old Mopar, too.

Plus, I don't have to mess with my fuel tank aside from changing and upgrading the sending unit to include a 3/8's return.

Above 600 + horspower, in-tank baffling would be a worthwhile addition, as would a second pump in the surge 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)
Re: in tank pump and fuel regulator install questions [Re: jbc426] #1368609
01/13/13 03:33 AM
01/13/13 03:33 AM
Joined: Feb 2006
Posts: 1,179
Canada
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demon Offline OP
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demon  Offline OP
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Interesting setup. The whole EFI conversion world is new to me and I'm still figuring the best solutions.







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