12 Valve 2nd Gen Dodge Cummins 94-98 Discussion of 12 Valve 5.9 Liter Dodge Cummins Diesels with P7100 Injection Pumps

need performance help

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  #31  
Old 09-24-2012, 02:21 PM
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Alright ill do my AFC mods next . When I get my gov springs. Any input on what Injectors would suite me ? Sooner or later I would like to upgrade to a bigger turbo . Manifold and intake any input on one of those I should get? Thanks for all your guys help
 
  #32  
Old 09-24-2012, 03:18 PM
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You should replace that plate it is cut the wrong way. As rpm increases the gov arm rides up the plate. The way yours is cut its got more fuel down low then up top which is backwards from how it should be. Altho with the afc tuned right the foot would be keeping it off of the bottom of the plate. I would still put a #100 plate in it. Any dry filter intake will work fine as well as any 4" exhaust with a flow thru muffler. As far as injectors and turbo gos that all depends on your power goal.

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  #33  
Old 09-24-2012, 05:00 PM
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I have 4in. Trubo back straight pipe with 5 in. Dual assuie stacks.and I plan on getting a new cold air with dry filter here soon but I do wanna pull some good power out of the truck. I wanna pull alot of power on low end even good high end would be great
 
  #34  
Old 09-24-2012, 08:02 PM
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if that truck has bigger injectors it should light the turbo instantly 30 psi shouldn't be no problem at all

something ain't right.
 
  #35  
Old 09-24-2012, 09:43 PM
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small turbos make big TQ numbers and larger turbos make big HP numbers so its a balance to get the power your looking for. the best setup for the best of both worlds is a hx35 over a S471 that will make the most bottom end and top end. and i would run some 5x16 injectors with that setup.
 
  #36  
Old 09-24-2012, 10:33 PM
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so mayyybe a dumb? But I i supposed to see a rod or something that rides on the fuel plate when bi took it out BC I didn't see anything but I i missed it but I dont member seeing anything... But the injectors... That's just what they guy said could be false just just a dumb sales pitch so they could be stock im not bpositive. That turbo set up is that I i can buy as a u.nit or would bi have to fab that up? There a certain brand of injectors or anything ? And would I need to do anything internal to the engine to run that setup ? Is there anything certain needed to be done with the head for that also?
 
  #37  
Old 09-25-2012, 06:31 AM
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when you take the afc housing off and leave the fuel plate in you have to pull the fuel shut off up so that it is in the run position then reach and pull the throttle with your hand. you will be able to see the gov arm come up and contact the plate then. without doing that you will not see it. go ahead and do that just to make sure that the arm isnt going below the plate because of the way it is cut because that would limit the fuel if that happened.

i was just thinking also about your injectors. they very possibly could be 370 marine injectors that could explain part of the smoke and lack of bottom end since they are not the correct spray pattern.

we can get the piping kits that use your stock charger and add a S471 to them from a couple different places. it is a bolt on kit with only minor modifications needed to install it but no welding or fab work required.

the engine internals would be fine just would need the head studs.
 
  #38  
Old 09-25-2012, 10:22 AM
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alright thanx . Verryyyy nice what place can I get that kit and the turbo?
 
  #39  
Old 09-25-2012, 11:28 AM
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We can supply everything you need.

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  #40  
Old 09-25-2012, 12:34 PM
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Alright. Who's we ? And what kind of pics am I looking at for that whole setup there?

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Last edited by javelinamx1974; 09-25-2012 at 12:34 PM. Reason: Automerged Doublepost


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