Duel Feeding P pump
- Thread starter TheWrench
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zstroken
For $$$ your name here
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I don't see why you just couldn't skip the return all together. If your running a regulator on the line, that is the point where the return is. I guess it could affect cooling at low fueling, as your not actually running the fuel through the pump.
zstroken
For $$$ your name here
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It looks like he has tapped the front boss, which I have seen that before.
Why do you have to run the return? If your feed the pump at 50psi from a regulator, the remainder will go to the tank? What is the reasoning? Pump cooling? Or?
Why do you have to run the return? If your feed the pump at 50psi from a regulator, the remainder will go to the tank? What is the reasoning? Pump cooling? Or?
zstroken
For $$$ your name here
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Theoretically your not dead heading it though, the regulator is just maintaining pressure. I mean on the stock setup with either the overflow valve, or running a regulator on the return, if your not at the certain pressure your not dumping. Just curious.
Cummins Driver
THE Cummins Driver
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Seems like if you got air in the lines you'd have a fun time getting it out of the pump without a return on the pump. Why not run one off the pump when it is so easy?
Jff24Gordn
FIRE
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TheWrench
Coach K
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Do you guys use 1 feed pump or 2 looks good though.
Jff24Gordn
FIRE
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Purehybrid
Just Another Wrench
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RyanB
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Here is my dual feed setup...its a bit different than most but works quite well. When I had my pump built he tapped into the back side of the pump (Block side) thinking there was more than enough room but I had issues finding fittings but after having Jim Fulmer hook me up with some out of a place from Florida with Banjo/-AN fittings it works great.
I have two -8an lines going to the pump and have a dump valve plumbed in to the system also. I use two Areomotive Y-Distribution blocks on either side of the dump valve. The reason I have two y-blocks is because I have to lines comming out of my fuel cell. One is -10an going to my Haisley Aux Pump/Filter then -8an to one port of the Y-Block and the other comes out of the tank in -10an and up to the stock lift pump on the side of the block (I have ported to work with the -10an hose). I then come out of the pump with -8an hose and into the stock fuel filter which I also tore apart and ported so now there are no restrictions and then -8an back out of the filter to the other port on the Y-Block.
Once the fuel goes thru the Y-block (the dump valve and the those ports are -12an, it then gets split again and goes to feed either side of the pump.
In the end its a trick setup although it cost me ALOT as each Y-Block were almost $100 plus the dump valve and -AN fittings and bango's were expensive also...I think I figured over $500 for the whole system not including the pumps and the fuel cell.
Here are some pics...hard to make out but you get the idea!
This is the dump valve and y-blocks
IMG]http://i52.photobucket.com/albums/g30/RyanBambach/DSCN1737.jpg[/IMG]
These are the two -8an lines comming out of the y-block going up to the pump
This is the port on drivers side of the pump (factory location) both bango's are I believe 16MM fittings instead of the stock 14mm ones (I removed the heli-coil to get more flow to the pump)
This is the engine side of the pumps banjo fitting
and the last one is just showing both -8an lines comming up to the pump
Ryan
I have two -8an lines going to the pump and have a dump valve plumbed in to the system also. I use two Areomotive Y-Distribution blocks on either side of the dump valve. The reason I have two y-blocks is because I have to lines comming out of my fuel cell. One is -10an going to my Haisley Aux Pump/Filter then -8an to one port of the Y-Block and the other comes out of the tank in -10an and up to the stock lift pump on the side of the block (I have ported to work with the -10an hose). I then come out of the pump with -8an hose and into the stock fuel filter which I also tore apart and ported so now there are no restrictions and then -8an back out of the filter to the other port on the Y-Block.
Once the fuel goes thru the Y-block (the dump valve and the those ports are -12an, it then gets split again and goes to feed either side of the pump.
In the end its a trick setup although it cost me ALOT as each Y-Block were almost $100 plus the dump valve and -AN fittings and bango's were expensive also...I think I figured over $500 for the whole system not including the pumps and the fuel cell.
Here are some pics...hard to make out but you get the idea!
This is the dump valve and y-blocks
IMG]http://i52.photobucket.com/albums/g30/RyanBambach/DSCN1737.jpg[/IMG]
These are the two -8an lines comming out of the y-block going up to the pump
This is the port on drivers side of the pump (factory location) both bango's are I believe 16MM fittings instead of the stock 14mm ones (I removed the heli-coil to get more flow to the pump)
This is the engine side of the pumps banjo fitting
and the last one is just showing both -8an lines comming up to the pump
Ryan
Soup Nazi
The artist formerly known as Don M
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- Sep 26, 2006
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A single feed from the rear of the pump as designed is best. I understand the thinking around dual feed and ran them myself back in 2002. Its all back to single feed now. Mostly for durability and longevity reasons. About 45 PSI seems optimum for me.
