Diesel Tuner's Blog

Do you need a lift pump on your LML?

You should strongly consider a lift pump for your LML (2011-2016 Duramax).  Although there are many benefits a lift pump provides, your LML needs them for 2 main reasons, RELIABILITY & PERFORMANCE. 

First, we should clear a few things up before diving into this topic.

• Lift Pump:  A low pressure pump that draws from the fuel tank and pushes it to the high pressure fuel pump.  LML's do not have a lift pump from the factory.  
• CP4.2:  High pressure fuel pump equipped on the LML.  Mounted in the engine bay, directly feeds high pressure to the common rail and draws fuel from the tank. Commonly called the Cp4.
• LML:  Short hand for Chevy and GMC 6.6L, V-8, turbocharged, Duramax engines available in the 2011 - 2016 HD trucks. 
• Brands: DuramaxTuner.com is an Authorized Dealer for FASS.  For purpose of this article we are not going to split hairs over brands.  We certainly suggest doing your research for what is going to meet your needs the best. 

Last year we ran our 2012 Duramax with a few aftermarket goodies and the stock emissions equipment.  Not only did the truck compete the entire season, it won several events!  Taking home 5 first place spots and placed in the top 3 more often than not.  

With 617 RWHP on tap DT Clean Sweep almost made it look easy.  

The 2017 sled pull season is approaching and we wanted to a way to give back to you, our fans!  So we are offering a FREE Poster featuring #DTCleanSweep shipped to you!

Last year we ran our 2012 Duramax with a few aftermarket goodies and the stock emissions equipment.  Not only did the truck compete the entire season, it won several events!  Taking home 5 first place spots and placed in the top 3 more often than not.  

With 617 RWHP on tap DT Clean Sweep almost made it look easy.  

With the 2017 sled pull season approaching we wanted to a way to give back to you, our fans and get everyone excited for the upcoming year.  So we are offering a FREE Poster featuring #DTCleanSweep shipped to you!

No need to delete emissions to make power!  

Many people looking to make more power with a 2011 and newer LML Duramax think an aftermarket exhaust is required to make power.  This is simply not true!  Countless people reach over 500 RWHP with just the LML SPADE and a lift pump.  

The most common myths about making power with an LML Duramax:

• "The DPF is going to fail"
• "Higher hp tunes will plug up the filter"
• "I deleted my truck and now I get better MPGs"

Drop-In Duramax Turbo Options

In the old days, there was no such thing as a "drop-in" turbo.  You pretty much had to buy a turbo that was designed for a different application and convert it to run on your Duramax.  Meaning the requirements for installation included several custom fabricated pieces to make it work.  

As technology in the diesel performance industry has advanced, our options for parts have expanded.  No longer do we have to use semi turbo's and roal coal to make power.  Now with the common rail injection system and variable vane turbo advancements there is a real need to find a turbo that makes more power than stock, while retaining all the benefits of a stock turbo. 

Benefits of a stock turbo:

• Quick Spooling 
• Clean installation
• Reliable
• Serviceable by any dealer or reputable shop
• Requires no custom fabrication

However, they do lack peak power, and peak power matters!  When looking for which upgraded unit to replace the stock turbo, we recommend matching the replacement as close as possible to the desired power level to minimize compromising drive-ability.  Any extra capacity you buy in peak for performance will cost you low end response.  Example: Looking to make 650rwhp? Buy a turbo that can just barely squeak out 650rwhp, do not buy something that's good for 850rwhp because it will drive poorly a light load. 

 My name is Danny Voss, I have been working with the tuning department at Duramax Tuner on our emissions equipped truck to get the most out of our LML (2011-2016)  Duramax

"The Clean Sweep" is Calibrated Power Solution's Emissions intact pull truck designed to kick butt on the pull track and drive home like nothing happened.  This truck is the true definition of a sleeper.  When I get on the throttle, the responsiveness is unbelieveable.  

Here are the TOP 3 Reasons why Duramax Tuner choose to do this project:

• The EPA frowns on removing emissions equipment.
• The future of our industry is going in the direction of CLEAN POWER.
• To show the world we can make CLEAN, RELIABLE and LEGAL power.

INTRODUCTION:

Many customers have upgraded from their old pre-emissions Duramax to a new LML Duramax and found there are a few changes besides just the looks. 

The new LML made and astonishing 395 RWHP and 731 ft/lbs of torque on our dyno when tested stock. Which is impressive by itself but you will probably notice your old Duramax feels quicker. In fact we hear many stories of guys trying to merge into traffic or gun it to get in front of someone and the pedal does not seem to respond. This phenomena is often called the LML "Dead Pedal". The "Dead Pedal" is a delay the driver feels between pressing on the throttle pedal and the truck reacting as desired. 

But what causes the LML Dead Pedal? And more importantly, What is the fix for the LML Dead Pedal?

These are exactly the questions we hope to answer for you. Below you will see what we have put together on the topic. 

• LISTEN TO THE DIESEL PERFORMANCE PODCAST ON LML DEAD PEDAL
• READ ABOUT LML REGEN
• WATCH A REVIEW OF THE 2.8L 4cyl DURAMAX TUNING

LML Stealth 64 VVT by DuramaxTuner.com

The Stealth 64 turbo lineup has provided Duramax and Cummins owners the perfect drop-in, upgraded turbo option to net 80-120 extra horsepower.  It spools like stock, appears stock, and still makes good power.  The Stealth 64 lineup has already supported the 04.5-07 Cummins and the 01-10 Duramax.  Significant changes in design of the factory turbo slowed our entrance to support the 2011 - 2016 Duramax trucks.  Until now! 

This turbo has an upgraded compressor and turbine.  It's a direct bolt in for the factory charger on the LML (Custom tuning Highly Recccomended!)

• #DTCleanSweep Video
• 500+ HP Emissions Intact Cummins
• Learn more about Emissions Equipment