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

What injectors will give me the most hp.

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Old May 21, 2011 | 10:38 PM
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Default What injectors will give me the most hp.

I got a 94 cummins and want to know what injectors would give me the most hp, anyy info would help thanks.
 
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Old May 21, 2011 | 10:48 PM
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are you planning on upgrading turbos and the rest of the motor as well? You can have the biggest injectors on the planet, wont do any good unless youve got the air flow to support the increased fuel?

Also, whats the purpose of the truck, street, race/pull or dyno monster. There is a certain point on power where a street truck just isnt streetable anymore.
 
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Old May 22, 2011 | 01:28 PM
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For your stock setup, your stock injectors. Bet as Chris said it is all relative to what you are doing.
 
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Old May 22, 2011 | 02:05 PM
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I had some 435's in my truck and it worked good on the street. I think they are said to give 140hp and they are the biggest "standard" injectors before going custom I believe. If your looking to get some I'd sell them just PM me.
 
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Old May 22, 2011 | 03:46 PM
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ok ya id be interested in yours how much would you want

---AutoMerged DoublePost---

And i want to make it so i can pull it
 

Last edited by 94 dodge cummins; May 22, 2011 at 03:46 PM. Reason: Automerged Doublepost
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Old May 22, 2011 | 04:29 PM
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you planning on sled pulling it?
 
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Old May 22, 2011 | 06:00 PM
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yes i am
 
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Old Jun 3, 2011 | 01:34 PM
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with the stock turbo, 5x.012 injectors is the biggest id suggest. u can get away with 5x.014 but egts will be super high
 
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Old Jun 6, 2011 | 02:19 AM
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Originally Posted by biged681985
with the stock turbo, 5x.012 injectors is the biggest id suggest. u can get away with 5x.014 but egts will be super high
Agreed! Im there right now!

I had some 435's in my truck and it worked good on the street. I think they are said to give 140hp and they are the biggest "standard" injectors before going custom I believe.
This is riddled with untrue info.
 
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Old Jun 6, 2011 | 08:40 PM
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Originally Posted by rallyit67
I had some 435's in my truck and it worked good on the street. I think they are said to give 140hp and they are the biggest "standard" injectors before going custom I believe. If your looking to get some I'd sell them just PM me.

I am curious as how "435HP" (220HP over stock)injectors are now considered streetable on a stockish setup? Also curious on your pop offs on them, how wore out the nozzles are, and other mods that were there to support them. As far as "stock" application, which application would you like? Mack, John Deere, or just BOSCHE?
 
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