Redline Motive

Edge Products’ New Module Improves Power and Fuel Economy

Edge Products has been producing modules and programmers power for gas- and diesel-powered pickups since 1999. Edge has always been known for the power its products produce, but in an age of rising gas prices, customers have inquired about what these power producers will do to their fuel economy.

Many customers have submitted unsolicited opinions that saw immediate improvements in fuel economy after installing an Edge module or programmer. With Edge’s latest development — the Juice with Attitude for the 2006-2007 GM/Chevy Duramax LBZ/LLY engines — its engineers developed a specific “mileage” tune (Level 1). Edge’s engineers conducted a study to measure the effects of the Juice on fuel economy, and the results were amazing: the module increased fuel economy by 5.1%.

Test Setup
In order to consistently and reliably test fuel economy, a system was developed so that the fuel-delivery system was set up independent of the test vehicle’s fuel tank. This setup allowed the engine to burn fuel entirely from the test tank.

A Fairbanks counting weight scale accurate to five thousandths was used to measure the net fuel burned during the tests. The net weight of fuel burned during the test was then compared to a standard weight per gallon of diesel fuel, which allowed for an accurate calculation of fuel economy in miles per gallon.

A five gallon jug was modified with a fuel delivery and a fuel return line. A ½-inch rubber hose was used to deliver fuel from the test tank into the feed line on the engine. A similar 3/8-inch rubber line was used to return fuel to the test tank. The test tank sat on the Fairbanks scale, which allowed for real-time measurement of fuel burned. Additionally, the scale and test tank sat on an independent platform, which increased accuracy by preventing measurement errors which could be caused by floating hoses.

Test Procedure
Tests were run on a Mustang chassis dynamometer (dyno) using a constant load percentage test. The dyno was set to apply different loads depending on the test conducted. For accuracy, the cruise control was set at 70 MPH (1,820 RPM). Once 70 MPH had been reached, the trip odometer was reset and the starting weight value of the fuel was recorded. Once the trip odometer reached 20.0 miles, the weight of the value was again recorded. Additionally, a swamp cooler in the dyno room ran throughout the test in order to keep the dyno bay at constant cool temperature.

Tests were run in four sessions. While testing level one fuel economy improvements, four tests were run back to back: test one was at stock; test two was at level one; test three returned to stock; and test four was run at level one again. Running tests in this manner helps compensate for inconsistencies in the testing procedure, such as load fluctuations of the dyno with changes in temperature.

To calibrate the weight standard for one gallon of diesel fuel, a 16 oz. graduated cylinder was filled to the 16 oz. line and then fuel was added into a larger container which sat on the Fairbanks scale. Four 16 oz. measurements were then added to the larger container. The larger container and fuel were weighed on the scale. The weight of the container was subtracted from the gross weight, giving the net weight of the fuel. This amount was divided by four to derive the average weight of the four 16 fl. oz. measurements. This average weight was then multiplied by eight to find the weight per gallon of diesel.

Test Results
Test group one consisted of three stock runs and two level one runs under a 15% load on the dyno. Testing conditions are listed on the spreadsheet (below). From the averaged stock and level one runs, the Juice module increased fuel economy by 5.1%.

Test groups two, three, and four all operated under the same conditions. The load percentage on the dyno and the power levels were changed to see how fuel economy was influenced
under these conditions. All of the test blocks resulted in an increase of approximately 5% over stock.

Almost all of the companies that produce aftermarket performance electronics claim that their products could result in increased fuel economy. However, their claims are usually unsubstantiated customer assertions. Edge’s test thoroughly and conclusively proves that the LBZ/LLY Juice module not only produces horsepower gains of up to 100HP, but also saves customers 5% in fuel economy, definitively delivering the best of both worlds.

A great way to monitor your vehicle is with the Edge Insight CS and CTS Monitor

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