I'm sure you can figure out where this information (see quote below) came from and I think it's pretty clear from the threads I've read that these "claimed gains of 4-7 mpg" are from the DIC and are false. That isn't my question. My question is:
Is his statement about the factory softening up the bottom end torque for emissions true? If so, I could see (in theory) where a person could gain back an easy 1 - 2 mpg with a tune. I have a 2015 2500 HD and I'm getting 17 average (mixed driving). The truck easily gets over 20mpg out on the road doing 65 or 70. Probably would do 20 at 75mph but I haven't tested that yet. Either way, it gets great fuel economy. I would love to have more power, get rid of the dead pedal and get 18 or 19 in my driving........
Here is what the guys says about his philosophy/strategy on these tunes:
Automotive manufacturers are being pushed to meet different levels every few years. Along with the added emissions devices that restrict the motor they are also de-tuning the low-end power curve of the engine to meet these standards .
Diesel engines only have to meet standards up to certain engine RPM.
Yes the newer trucks do have higher horsepower ratings... but this rating is at 3400 RPM. When you drive your truck at highway speeds (1500-2000 RPM) you end up lugging the engine because it has been de-tuned on this low-end RPM.
The result is less than optimal fuel economy.
Diesels are a workhorse engine and are designed for High-Torque output at low-RPM.
When the factory takes the power from the bottom-end and moves it further up the RPM range to cut emissions... this robs the peak efficiency of the engine and also affects the power you need to get big loads moving out of the hole.
Today you can find dozens of websites making fuel mileage claims because of the high demand for better fuel mileage. The problem is none of these companies products can consistently put their money where their mouth is. I know this because we talk to dozens of Duramax truck owners every week who have installed these products and tell us the results.
These products are not solving the problem of the de-tuned low-end power curve of the engine!
INCREASE YOUR (LOW-END) TORQUE ='S INCREASING MPG
Several years ago I discovered that the simplest way to squeeze more miles per gallon on the Duramax was to recalibrate the trucks fuel maps and "increase the engine's low-end torque rise".
Tuning the Duramax motor with custom fuel and timing maps I am able to adjust the engine's low-end power curve giving it a faster torque rise and some of our customers are reporting to us they are seeing mileage gains of 4-7 MPG running empty and 20% increase while to wing. (see Testimonies)
Remapping the engines "fuel and timing tables" changes the "peak efficiency" of the motor to match your driving/towing RPM speed. This low-end torque rise significantly improves fuel economy because the engine now does more work with less effort.
Some of our Duramax customers tell us they were once getting 13-15 MPG and are now seeing up to 18-23 MPG and they get over 100 more miles out of every tank of fuel.
Imagine how much our customers are saving in fuel costs when they get 100 more miles out of every tank of fuel!
Faster torque rise at a LOWER-RPM also results in stronger "bottom end". This helps you pull hills in higher gears and faster speeds. Pulling heavy loads out of the hole becomes a breeze.
Is his statement about the factory softening up the bottom end torque for emissions true? If so, I could see (in theory) where a person could gain back an easy 1 - 2 mpg with a tune. I have a 2015 2500 HD and I'm getting 17 average (mixed driving). The truck easily gets over 20mpg out on the road doing 65 or 70. Probably would do 20 at 75mph but I haven't tested that yet. Either way, it gets great fuel economy. I would love to have more power, get rid of the dead pedal and get 18 or 19 in my driving........
Here is what the guys says about his philosophy/strategy on these tunes:
Automotive manufacturers are being pushed to meet different levels every few years. Along with the added emissions devices that restrict the motor they are also de-tuning the low-end power curve of the engine to meet these standards .
Diesel engines only have to meet standards up to certain engine RPM.
Yes the newer trucks do have higher horsepower ratings... but this rating is at 3400 RPM. When you drive your truck at highway speeds (1500-2000 RPM) you end up lugging the engine because it has been de-tuned on this low-end RPM.
The result is less than optimal fuel economy.
Diesels are a workhorse engine and are designed for High-Torque output at low-RPM.
When the factory takes the power from the bottom-end and moves it further up the RPM range to cut emissions... this robs the peak efficiency of the engine and also affects the power you need to get big loads moving out of the hole.
Today you can find dozens of websites making fuel mileage claims because of the high demand for better fuel mileage. The problem is none of these companies products can consistently put their money where their mouth is. I know this because we talk to dozens of Duramax truck owners every week who have installed these products and tell us the results.
These products are not solving the problem of the de-tuned low-end power curve of the engine!
INCREASE YOUR (LOW-END) TORQUE ='S INCREASING MPG
Several years ago I discovered that the simplest way to squeeze more miles per gallon on the Duramax was to recalibrate the trucks fuel maps and "increase the engine's low-end torque rise".
Tuning the Duramax motor with custom fuel and timing maps I am able to adjust the engine's low-end power curve giving it a faster torque rise and some of our customers are reporting to us they are seeing mileage gains of 4-7 MPG running empty and 20% increase while to wing. (see Testimonies)
Remapping the engines "fuel and timing tables" changes the "peak efficiency" of the motor to match your driving/towing RPM speed. This low-end torque rise significantly improves fuel economy because the engine now does more work with less effort.
Some of our Duramax customers tell us they were once getting 13-15 MPG and are now seeing up to 18-23 MPG and they get over 100 more miles out of every tank of fuel.
Imagine how much our customers are saving in fuel costs when they get 100 more miles out of every tank of fuel!
Faster torque rise at a LOWER-RPM also results in stronger "bottom end". This helps you pull hills in higher gears and faster speeds. Pulling heavy loads out of the hole becomes a breeze.
