Chevy/GMC Duramax 04.5-05 LLY Discussion of Chevy and GMC Trucks with LLY Duramax Turbo Diesel Engines

Injector / lift pump

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Old Feb 7, 2014 | 09:50 AM
  #1  
GTRW3T's Avatar
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Diesel Enthusiast
Joined: Sep 2008
Posts: 147
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From: MIDDLESEX COUNTY
Default Injector / lift pump

Hey everyone
Been awhile since I've been on here but I need some help. I've been looking at installing a lift pump on truck along with some injector nozzles. I was wondering if yawl had any thoughts on what I should run. Truck currently has stock but new injectors that's y I was thinking about just doin nozzles I also have egr delete new head gaskets n been studded also running ppe standered Im looking to get some more power n wana make sure it's getting enough fuel that why I'm thinking lift pump any ideas?
 
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Old Feb 15, 2014 | 12:54 AM
  #2  
2004LB7's Avatar
Diesel Bomber
Joined: Dec 2010
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From: Fool's Golden State
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i have a raptor 150. been working flawless for many years.

for nozzles, i would not go over 20% maybe 30% without some custom tuning. some get away with just upgrading the injectors and it runs fine. other end up with a lope in the idle and need tuning to fix it. the larger you go the worse it will be.

on the flip side, anything less then 20ish% is a waste of $$$ and not much gains. so i would say go for 30% overs and see if you need a tune after.
 
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