5.9L 12V Performance Discussion of 12 Valve 5.9 Liter Dodge Cummins Diesels with P7100 Injection Pumps Related to Performance and Longevity

Dual Feed P-Pump

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Old Jun 21, 2010 | 09:52 PM
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Default Dual Feed P-Pump

anyone have a write up on how to dual feed a P-pump......
 

Last edited by Red_Rattler; Jun 28, 2010 at 08:29 PM.
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Old Jun 21, 2010 | 09:54 PM
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I can make one
 
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Old Jun 22, 2010 | 04:58 AM
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Originally Posted by Benjamin
anyone have a write up on how to dual feed a P-pump......
remove the front plug above the mack plug, split the main feed line, run the second line into the front plug.

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here is one pic I'll get some more tonight
 

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Old Jun 23, 2010 | 08:54 PM
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Originally Posted by 94 12valve
remove the front plug above the mack plug, split the main feed line, run the second line into the front plug.

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here is one pic I'll get some more tonight
yes, more / better pictures please. so all you need is another fitting for the front and a "T" for the line? where can those be found at?
 

Last edited by Benjamin; Jun 23, 2010 at 08:56 PM.
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Old Jun 23, 2010 | 09:17 PM
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This is where I get all of my fuel stuff at. Call him qnd explain what you want to do and he'll hook you up, great guy to deal with.



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Old Jun 23, 2010 | 09:59 PM
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Originally Posted by Benjamin
yes, more / better pictures please. so all you need is another fitting for the front and a "T" for the line? where can those be found at?

All you will need is a T fitting that can be found anywhere fuel line is sold, 4ft of fuel line will be more than enough, some push lock fittings, metric allen wrench to remove the front plug, and another fuel fitting I used -8. I should have wrote the thread size down

here is my "T" fitting. the blue line is comming from my AD 150. The top black hose runs to where the fuel line normally feeds the ppump, the second line runs to the front plug that has been removed.
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Insert your -8 fitting to the front plug, here is where the second feed line will be connected
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The normal feed
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the second feed line
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Old Jun 23, 2010 | 10:36 PM
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for a DD its really not needed, but for higher rpm trucks it will help. Also its cheep to do and very easy
 
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Old Jun 23, 2010 | 11:31 PM
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Originally Posted by 94 12valve
for a DD its really not needed, but for higher rpm trucks it will help. Also its cheep to do and very easy
like a 4k rpm range? or for the ones turnin 5k?
 
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Old Jun 24, 2010 | 11:04 AM
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IMO if your trying to fuel past 3500 than this dual feed will help. I also think the 160's and 175 pumps should be dual fed sooner than that
 
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Old Jun 26, 2010 | 11:59 AM
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I'll be turning up to 4000-4200 maybe more but i'd rather have it and not need it than need it and not have it.

Edit: and my pump is a little bigger than a "stock" pump....
 

Last edited by Benjamin; Jun 27, 2010 at 01:14 PM.
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