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

12v hp mods help

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  #1  
Old 04-11-2009, 04:07 PM
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Default 12v hp mods help

ok yall i am new to the 12v scene so i need some help deciding what to do

first of all a little info on the truck and current parts.....the truck is a 94 auto that is being turned into a full on pulling truck and in the works right now is a full billit trans and tearing the engine down to put in fire rings, head studs and a kdp kit. also i have a modified silver bullet 2.6 turbo that is going on it and the pump allredy has a 3200rpm gsk in it and a 0 plate.

for the power department.....i plan on leaving the 3200rpm gsk for this year so that i dont have to buy valve springs, retainers, pushrods, and a fluidamper. i was thinking about putting in a set of lazer cut delivery valves, .093 delivery valve holders, rack plug, .093 lines, and a set of 435 injectors

what do yall think about that combination? where do yall think it will be power wise? anything yall would do different?
 
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Old 04-11-2009, 05:48 PM
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Is that truck green with an HTS trans?

Anyway I would stay away from LCs look for .022s 191s or 181s. Are you running a 62mm or 66mm charger? What other pump mods are you doing? What timing? Id set it to 20* or 22*.

With that setup I dont see 500 hp being a problem depending on what all you do to your pump and what timing you run.
 
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Old 04-12-2009, 08:27 AM
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keep the stock fuel lines till you get a bigger injection pump
 
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Old 04-12-2009, 10:37 AM
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Originally Posted by 94 12valve
keep the stock fuel lines till you get a bigger injection pump
how about an explanation of why....
 
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Old 04-12-2009, 04:38 PM
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xzaq103 no its not green with a hts trans, and why stay away from LCs, why run smaller valves? i am actually running a 71mm charger but it's got a 2.6" inlet on the compressor. that's all for the pump mods for now. timing is a good question i figured somewhere between 20-24* tho

94 12valve i'm with cummins97 why keep the stock lines?
 
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Old 04-12-2009, 05:10 PM
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because the stock fuel lines will flow enough fuel for a 12mm p-pump, when you step up to 13mm is when the bigger lines will help you. the bigger lines will flow more fuel but you will not get the pressure you would get with the stock lines.
 
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Old 04-12-2009, 05:32 PM
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And LCs are only good for a puller. They really put out way to much fuel.
 
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Old 04-12-2009, 06:04 PM
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chris, he said it was going to be a dedicated puller. pay attention man
 
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Old 04-12-2009, 06:13 PM
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like ed said it is a dedicated puller so that's why the LC valves.....and i'm thinking about swapping on a 24v head and pistons so i would have to buy lines anyways so why not buy .093s....but if i stay with the 12v head then i may leave the stock lines for now
 
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Old 04-12-2009, 10:41 PM
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oops my bad. I still say there too much fuel for the air your talking about.
 


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