Diesel Tuner's Blog

How much boost should my stock Duramax turbo make?

[fa icon="calendar'] Jul 28, 2016 11:45:05 AM / by Paul Wilson posted in Duramax, Turbo, Stock, Stock Turbo, Drop-In, Stealth 64, Wheel Size, Turbo Wheel, Stealth

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Duramax engines have always come with solid turbos. However after miles and miles of whistling and boosting, your turbo may have problems. Or you may have other issues, that make you think your turbo has problems. This is very common as most drivers watch boost, keeping an eye on how much PSI they're making. It stands to reason that if your peak boost drops, your turbo has a problem. This is usually not the case though. More often then not, when we diagnose this symptom we find there are other problems leading to a lower than expected boost number. 

Target boost numbers for the following RPO's are as follows (PSI)

2001-2004 LB7- Stock 20-22, tuned 24-26, tuned with PPE boost valve 28-31.  Failure will occur near 34psi

2004.5-2016 Stock 22-24, Mild tune 27-28, Hot tune 33-35

The factory map sensor which electronically measures boost on a 2001-2004.5 trucks only reads to 22-24 psi, 2006-2016 MAP sensors read to 37 psi.  If you want to read boost numbers higher you'll need an aftermarket gauge. 

Stealth Boost Tester

 

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How does REGEN work in an LML Duramax?

[fa icon="calendar'] Jul 6, 2016 10:30:43 AM / by Paul Wilson posted in Insider, DuramaxTuner.com, Duramax, Emissions, EGR Delete, 2013, 2014, 2016, Add blue, DPF Intact, EGR ON, DPF ON, 2011, 2015, New Diesel, LML, Diesel Tuning, More Power for my LML?, Urea, 2012, Delete, DPF Delete, Urea Delete, LML Tuning, Emissions Intact, EGR

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REGEN is the burning of soot built up in a DPF. 

 The Emissions Equipment for diesel trucks has changed quite a bit through out the years. In 2004.5 all heavy duty diesel pickups had to install EGR's which is the exhaust gas recirculation system. Basically it turns exhaust into inert gas and directs the gas back into the combustion process. Then in 2007.5 the EPA required pickups to use a DPF. The DPF, or Diesel Particulate Filter, is a filter that catches soot, or unburnt fuel from the exhaust. Once the soot builds up, the exhaust heats up to burn the soot off. Starting in 2011 Diesel Exhaust Fluid is used to treat NOx emissions, in addition to the EGR and DPF treating the carbon emissions. 

The DPF is a crucile part of treating diesel emissions and each OEM utilizes and operates their DPF a little differently. Below, the DPF in the 2011-2016 LML Duramax is explained.

 CHECK OUT THESE OTHER LINKS ABOUT REGEN AND DPF's

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6 Questions about Tuning your LML Duramax

[fa icon="calendar'] Jun 22, 2016 2:00:00 PM / by Paul Wilson posted in Insider, Duramax Performance, Mods, DuramaxTuner.com, EFILive, efi live, Modifications, Duramax, Emissions, EGR Delete, Duramax Power, What can I do to get better fuel mileage?, 2013, 2014, 2016, Add blue, DPF Intact, EGR ON, DPF ON, 2011, 2015, New Diesel, LML, Emisssions Intact Tuning, Diesel Tuning, how to get more power from my duamax, How to get more power from my Duramax, what are some upgrades I can go to my LML?, Urea, 2012, Delete, DPF Delete, Urea Delete, LML Tuning, Emissions Intact, EGR, LML Power

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Did you know there is no reason to delete the emissions from your 2011-2016 Duramax? 

DuramaxTuner.com's SPADE is capable of adding up to 135HP to your EMISSIONS INTACT LML

Actually, more and more people are tuning their 2011 + Duramax (LML) with the emissions equipment intact.  This is a great option for Duramax owners that would like a nice, quiet, reliable, efficient truck that performs well every time. However, many LML Owners have some basic questions prior to pursining emissions intact tuning. 

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LBZ Power Recipes

[fa icon="calendar'] May 11, 2016 5:00:00 AM / by Paul Wilson posted in Duramax, Power, LBZ, LBZ Power, Power Package, Making horse power, Making horse power with

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Stage 1 (~430RWHP)- (~430RWHP)- This set of modifications maximizes the value and reliability per dollar on a truck with a stock transmission.  Reliable power levels up to 430rwhp can be achieved with this set of parts.  The  factory transmission parts are the limiting factor.

 Includes:

 

 Visit DuramaxTuner.com

Stage 2 (~530RWHP) (~530RWHP) -This set of modifications maximizes the value and reliability per dollar on a truck with a built transmission.  Reliable power levels up to 530rwhp can be achieved with this set of parts.  The  factory turbocharger is the limiting factor. We highly recommend gauges with this setup, as it’s limited turbocharger capacity means it has the potential to run high EGT’s which (left unchecked) can cause engine damage.

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What you need to know about Boost Testing your truck!

[fa icon="calendar'] May 6, 2016 9:00:00 AM / by Paul Wilson posted in Duramax Performance, duramaxtuner, Duramax, Duramax Power, Charged Air System, Boost Leak, intercooler, Trouble Shooting Duramax, Boost, Turbo, Boost Test

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So many truck come into our shop with high EGT's, turbo lag, excessive smoke output, and bad fuel mileage which are all symptoms of a boost leak. It is so common to devlop boost leak that we now require all trucks to have a boost test done prior to strapping them down on the dyno. What's funny, is that no one shows up knowing they had a boost leak. The reality is that even if you can hit peak boost, you may have a leak, especially if you have a variable vane turbo. Variable vane turbos will change vane position and other operations to try and achieve a desired boost number which may cover up a leak in the charged air system. 

 

 

 

 

 

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How to successfully FLASH your LML Duramax (2011-16)

[fa icon="calendar'] Apr 20, 2016 10:18:00 PM / by Danny Voss posted in Mods, Duramax, What can I do to get better fuel mileage?, 2013, 2014, 2016, EGR ON, 2011, 2015, LML, Emisssions Intact Tuning, How to program my LML, How to get more power from my Duramax, More Power for my LML?, what are some upgrades I can go to my LML?, 2012, LML Tuning, Emissions Intact, LML Power

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INTRODUCTION:

Many customers hunt the forums in search of How to FLASH your LML Duramax.  Let's face it, these are expensive trucks and you want to be confident in your actions while flashing a truck.  

In this BLOG, you will learn how to FLASH your ECM and for you visual customers, I have included a great link to our very popular YouTube channel at Duramax Tuner and Calibrated Power Solutions

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How to Keep Your LML Duramax Reliable

[fa icon="calendar'] Apr 6, 2016 2:00:00 PM / by Paul Wilson posted in Duramax Performance, DuramaxTuner.com, duramaxtuner, Duramax, Emissions, Duramax Power, 2013, 2014, 2016, Add blue, DPF Intact, EGR ON, DPF ON, 2011, 2015, LML, Urea, 2012, DPF Delete, LML Tuning, Emissions Intact, EGR, LML Power

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3 SIMPLE THINGS YOU CAN DO TO HELP KEEP YOUR LML DURAMAX RELIABLE:

Your truck is generally one of the largest investments you will make, so keeping it on the road is priority number 1!

 

The LML Duramax is one of the best trucks GM has ever produced. With 397 Horse Power and 796 ft/lbs of torque from the factory, the truck has the power plant necessary to do just about any job you can throw at it. However, despite the massive improvements the LML has brought to the table, there are some all too common pitfalls that can make this beast a burden. 

Here are some other places you can read more about the LML Duramax:

Visit DuramaxTuner.com

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Top 3 mods for your LLY Duramax

[fa icon="calendar'] Jan 11, 2016 8:30:00 AM / by Paul Wilson posted in Insider, Duramax Performance, Mods, LLY Tuning, better performance for lly, how to get better fuel mileage with LLY, LLY Mods, dsp, dsp5, lly performance, DuramaxTuner.com, LLY Intake, EFILive, efi live, switchable tuning, LLY, duramaxtuner, Modifications, What should i do first, what tuning should i get for my LLY, Duramax, switch on the fly tuning, LLY mpg

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  • The LLY Duramax  is a great truck from the factory for there are 3 modifications every owner should make! The LLY was manufactured 2004.5 and 2005. There are a few 2006 models that are labeled as an LLY, however they have all of the LBZ upgrades from the factory, so for performance applications consider those an LBZ. An LLY was the first Duramax with the injectors outside of the heads, a variable vane turbo and a 50 state EGR.

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