David Schaefer’s 2015 GMC 2500HD Denali, known as "Time Bomb," is a remarkable achievement in the world of diesel performance. With a stunning 700 horsepower while maintaining full emissions compliance, this truck is a testament to what can be accomplished with thoughtful engineering and high-quality components. Let’s break down this comprehensive build, exploring the features that make it special and how they come together to create a never before achieved driving experience.
What is "Cost Per Horsepower"?
Cost Per Horsepower is a simple way to display and measure the cost-effectiveness of automotive performance upgrades.
In practice, this term is probably more often used to prove someone has wasted money on a specific upgrade or the purchase of an entire vehicle. For the purpose of this article, we are going to assume the vehicle in question is either a Duramax, Cummins, or Power Stroke diesel truck.
Ever wonder what you need to push your stock truck to its limit? We know the answer, and we created this article for you. For 600-640 RWHP you will need to keep in mind all the supporting modifications you need to maintain reliability.
Custom tuning is going to ask your truck to perform at a higher level. The same goes for upgrading your turbo, transmission, fuel system or any other performance orientate component. The best way to maintain a moderate level of reliability while upgrading is to address these issues once and do it right!
Here is the list of what you need to make a reliable 600+ RWHP LML with a DPF still on it:
- EZ Lynk AutoAgent 2.0 w/ Support Pack & LSP5 Switch
- LML Stealth 64 Turbo
- 10mm Cp4 Exergy Stroker Pump
- DT550 Built Transmission
- S&B Intake
- Tie Rod Sleeves
- Traction Bars
- Fass 165 Lift Pump
- Beans Fuel Tank Sump Kit
- Edge Insight CTS2 Monitor
- EGT Probe
DT LML Twin Kit: Peak Performance And Driveability
Introducing the DT LML Twin Kit for 2015-2016 Duramax trucks from Duramaxtuner.com! This kit was designed in-house with Wehrli Custom Fab to give you a product that pushes the limits of power and keeps your EGTs cool. Let's go over some of the features this product has to offer your 2015-2016 LML.
You use your truck for daily commuting or hauling the family and trailer for a long weekend of camping, you’re rolling up to your work or that campsite and you notice the LML go into regeneration (regen). You can’t keep driving as you should because you got a job to do or things to unpack. You can’t help but wonder what can be done to keep your LML from going into this cycle as often as it does, we’ll get into that in bit, first let’s look a little more at DPF regen.
The DPF takes essentially 700 miles or 18 hours of drive time to put it to the maximum values of normal calculated mass soot levels, which if you were curious is 44 grams. Active Regen describes the procedure your truck goes through to burn that accumulated soot. To do this, fuel is dosed through a 9th injector directly into your exhaust. Many drivers have noticed a drop in MPG and even potentially a lack of power during regen.
A popular theory is that if you go through regen less frequently, your MPGs will go up. So, how can you go through less regens?
5 Things You Probably Didn't Know About The 2011-2016 Duramax EGR
Some of you reading this are probably screaming at the computer already. Mentioning EGR, or any emissions equipment tends to prompt that reaction. Take a moment to read about how the EGR equipped on the 2011 - 2016 Duramax is NOT going to ruin your engine. Afterwards, if you still want to send a letter about how terrible emissions equipment is, please address it to your local Congressman.
Below you will find 5 things you probably didn't know about the EGR (exhaust gas re-circulation). Including how it is different than previous models, why it works well, and a few other note worthy facts.
A few things you've heard people say about the EGR that are NOT true about the LML EGR system:
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.
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