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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 26, 2010 | 03:12 PM
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biged681985's Avatar
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so i need to add dual feed to my list then
 
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Old Jun 27, 2010 | 11:18 AM
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Sounds like I need to do the same.
 
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Old Jun 28, 2010 | 08:19 AM
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I didn't notice any difference in power or anything my truck after dual feeding the pump, and I was running 5k RPMs before and after the dual feed. I did it for the simple fact of getting good clean cool fuel to the front of the pump to help keep the plungers/barrels well lubed. I've heard of a few guys seizing a plunger and its usually at the front of the pump where it could be starved for fuel.

Definitely a good idea.
 
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Old Jun 29, 2010 | 12:15 PM
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oglejust's Avatar
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Originally Posted by biged681985
so i need to add dual feed to my list then
thats kinda what i was thinkin..
 
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Old Jun 29, 2010 | 01:03 PM
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94 12valve's Avatar
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Originally Posted by GetBlown5.9
I didn't notice any difference in power or anything my truck after dual feeding the pump, and I was running 5k RPMs before and after the dual feed. I did it for the simple fact of getting good clean cool fuel to the front of the pump to help keep the plungers/barrels well lubed. I've heard of a few guys seizing a plunger and its usually at the front of the pump where it could be starved for fuel.

Definitely a good idea.
this was also good info
 
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Old Jul 1, 2010 | 04:48 AM
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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
and super sexy looking
 
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Old Jul 5, 2010 | 02:01 PM
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bh10's Avatar
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Originally Posted by GetBlown5.9
I didn't notice any difference in power or anything my truck after dual feeding the pump, and I was running 5k RPMs before and after the dual feed. I did it for the simple fact of getting good clean cool fuel to the front of the pump to help keep the plungers/barrels well lubed. I've heard of a few guys seizing a plunger and its usually at the front of the pump where it could be starved for fuel.

Definitely a good idea.
I hadnt heard that, good info. Looks like something ill be doing soon.
 
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Old Jul 5, 2010 | 07:55 PM
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Old Jul 5, 2010 | 09:40 PM
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Originally Posted by mech2161
What size fittings did you use. I want to dual feed mine, I just need to find the correct fitting sizes
 
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Old Jul 5, 2010 | 10:30 PM
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-10 tank to pump
-8 pump to filter
-8 filter to Y block
-6 Y block to p-pump
-6 return to regulator
-6 regulator to T for injector return
factory return line from T to tank
 
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