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

Lift pump questions

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Old Jul 6, 2010 | 11:38 PM
  #11  
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Ok so your saying I need a different injection pump too?
 
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Old Jul 6, 2010 | 11:41 PM
  #12  
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no. p-pumps rarely go bad. what exactly is wrong with your truck? it may not have anything to do with any of the pumps.
 
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Old Jul 6, 2010 | 11:48 PM
  #13  
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Well I turned my star wheel a little bit hoping for a little better timing and smoke and it did give me some more get up and go and a little more smoke but my buddy said that when he did his same truck it was supposed to give more and since my lift pump has never been replaced it was thought I might as well get another one any way. And I'm wanting a little more smoke and power with out damaging anything .
 
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Old Jul 6, 2010 | 11:56 PM
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well every truck runs a little different. i would say read up on tuning the afc and you can get a lot more outta it. stock lift pumps can last a long time. and you cant add much power before you start damaging trannys so be careful.
 
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Old Jul 7, 2010 | 12:23 AM
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Yeah that's what I'm worried about. I'm pretty sure that my lift pump is bad but I would like to replace it anyway and I just wanna make sure that if I get the air dog if it would damage anything someone else also told me that it wouldn't damage the tranny and as long as I don't bump it up too much and stuff before I get my torque converter and valve body checked out not to tune it up much
 
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Old Jul 7, 2010 | 12:31 AM
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Unless youre going to end up above 500 hp you dont need an electric lift pump. Spend your money on something else. If you want extra filtration, you can put that on without spending $500+ on an airdog or FASS.
 
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Old Jul 7, 2010 | 12:40 AM
  #17  
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What could I do to get a little more power and a little more smoke without damaging anything??
 
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Old Jul 7, 2010 | 12:49 AM
  #18  
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An Airdog isnt going to give you any more power either.

Get a pyrometer and boost guage and slide your fuel plate full forward, tune your AFC and see how you like it. And bump your timing up to 16 degrees or so.
 
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Old Jul 7, 2010 | 01:01 AM
  #19  
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And none of that will affect my tranny???
 
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Old Jul 7, 2010 | 04:30 PM
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depends on how you drive your truck and what condition your tranny is in already, if you drive it nice and the tranny is in good shape then you will be ok with the above state mods
 
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