LB7 Performance Discussion of Chevy and GMC Trucks with LB7 Duramax Turbo Diesel Engines Related To Performance And Longevity

LB7 Performance Upgrades

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Old Nov 7, 2014 | 10:16 AM
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Default LB7 Performance Upgrades

Hello All,
I wanted to open up a thread for those of you looking into LB7 Performance Upgrades. Feel free to to ask anything upgrade related and I will do my best to help.

For those of you with a stock LB7 looking to get started, take a look at this:

 
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Old Nov 7, 2014 | 11:33 AM
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Nice video!
 
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Old Nov 7, 2014 | 03:44 PM
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Thanks man!
 
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Old Nov 10, 2014 | 11:37 AM
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Has anyone installed an LB7 Boost Increase Valve?


This part takes 5 minutes to install and will allow your truck quicker spool up, run cleaner, and deliver 5-6 more lbs of boost under full load. I cannot even think of a reason not to install one.
 
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Old Nov 27, 2014 | 10:53 PM
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I did when I installed new injectors CP3 and gauges running a bully dog triple dog for now and it clean it up a good bit looking to get the trans built and efi from you guys when tax time rolls around
 
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Old Dec 1, 2014 | 09:35 AM
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Originally Posted by Walker.B
I did when I installed new injectors CP3 and gauges running a bully dog triple dog for now and it clean it up a good bit looking to get the trans built and efi from you guys when tax time rolls around
That is a great time to put them in. If you are under the hood for pretty much anything, it is a good time to put one in.

Let me know whenever you are ready for tunes and a transmission, we build transmissions here and can drop ship a pre-built one if that suits you better.
-Paul
 
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Old Dec 2, 2014 | 10:58 PM
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whats your prices? i can send my core in first if needed instant message me quotes if you dont mind keep in mind i dont plan on pushing past the 650-700hp mark but i want the trans to hold more if i ever decided to build the bottom end, heres the rig its for Thanks! Walker.B
 
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Old Dec 9, 2014 | 11:51 AM
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PM Sent
 
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Old Jul 15, 2015 | 11:37 AM
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Does any body know what the fuel pressure should read at idle through the bully dog gt programmer. I just installed a raptor 100gph and don't want to over or under do settings. By the way 2003 lb7 with cold air intake 3.5 exhaust bully dog and now raptor lift pump.
 

Last edited by Ajacklin; Jul 15, 2015 at 11:40 AM.
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Old Aug 5, 2015 | 11:36 PM
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Originally Posted by Ajacklin
Does any body know what the fuel pressure should read at idle through the bully dog gt programmer. I just installed a raptor 100gph and don't want to over or under do settings. By the way 2003 lb7 with cold air intake 3.5 exhaust bully dog and now raptor lift pump.
rail pressure should be around 5-6k at idle. fuel pressure from the raptor pump should come preset at 8-10 psi. anything more i have always gotten surging
 
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