4x4Review Off Road Magazine
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A few months ago we needed to free up some ponies in the Duramax diesel engine of our ’05 Chevy Silverado. We accomplished this by installing the Corsa diesel performance exhaust system, as well as the Advanced Flow Engineering (AFE) performance intake and air filter system-both designed to help the truck breathe easier. The results were impressive to say the least-freeing up a full second of time in the 0-60 range – but the brute-power bug bit us, hard. The next logical step to feed our horsepower habit was to look into a diesel performance programmer. Keep in mind that squeezing power out of a turbo-charged diesel isn’t all that unusual anymore, particularly when it involves reprogramming the computer system. There are a number of companies out there that can squeeze hundreds of horsepower out of a diesel engine, but we were looking for someone that could do it reliably, safely and intelligently. Our search led us to the doorstep of Edge Products -a slightly lesser-known company in the diesel performance industry, but one that makes highly sophisticated, reliable and very intelligent products for your diesel performance needs. After a conversation with the technicians at Edge Products, we decided that a Juice Control Module and an “Attitude” system controller were the right instruments for our “operation.” The power statistics were as impressive as many other reprogrammers on the market, but the foresight of the system designers is what really sold us. The Juice with Attitude performance combo is designed to provide the driver with five power settings that can be adjusted while driving, but it’s done in a way that is specifically designed to protect the motor and drive train. Before we get into the performance gains, it’s important to know that the Juice with Attitude performance combo is designed to provide the driver with five power settings that can be adjusted while driving, but it’s done in a way that is specifically designed to protect the motor and drive train. The Juice with Attitude combination provides a vast array of configuration and display functions that enable you to configure, tune, and tweak your ride just the way you’d like. There are also a series of settings within the Attitude module that allow you to set maximum points of interest to protect your engine and drivetrain. For you racers out there who throw caution to the wind, you can disable just about every function. Below is an outline of the display functions that can be set up, as well as the settings, configurations and performance tests that can be changed also. |
Display:
The Attitude module can be set up to display a 2-function bar graph or 2-,3-, or 4-function digital displays. The following items can be displayed on the home-screen of your Attitude:
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Boost
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EGT (exhaust gas temperature)
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RPM
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% Engine load
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Engine temperature
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Gear
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Speed
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Throttle position
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Torque converter clutch status
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Transmission clutch slippage
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Percent back down due to high EGT
Settings & Configurations:
There are four major areas of configuration and performance tests, each of which has several sub-functions. Don’t let the large number of functions scare you, it’s quite easy to navigate and configure your Attitude control module.
Juice Configuration
Maximum EGT Set Point
Alerts (All points are adjustable)
Records
Performance Tests
| Edge Products |
| 1080 South Depot Drive Ogden, Utah 84404 Phone: 1-888-360-EDGE Fax: 1-801-476-3348 Email: sales@edgeproducts.com Web: www.edgeproducts.com |
When we received our Edge Products Juice with Attitude combination, we though it might be a big project-but we were wrong. With the help of our feature editor, installation only took a few hours,.The instructions were lacking in some areas, as they seem to have been written generically for a few different model years, but a quick call to a friend who works for 4-Wheel Parts Performance Center set us in the right direction.
We started by setting our Attitude Control Module on the dash board, approximately where we wanted to mount it. We then fed the Attitude control module through the open driver’s door, through a small gap near the hood hinge, and into the engine compartment.
We then took a flat-tip screwdriver and spread the seam of the dashboard so that we could slip the aluminum L-bracket into place-this is a simple, yet effective and secure way to mount your Attitude Control Module.
With the Attitude Control Module in place, we then mounted the Juice Computer Module on top of the under-hood fuse box with double-sticky tape. We then connected the Attitude and Juice modules with the green cable.
We headed over to the passenger side to remove the front, inner fenderwell. A small, flat-tip screw driver works wonders, and we had the liner out in about 10 minutes. With the inner fender well removed, we could then drill a 5/16″ hole into the exhaust manifold. We started the engine and let it run for a minute or so, to blow any metal out of the manifold. We then tapped the manifold with a 1/8″ NPT tap, and fired up the engine one last time to blow any metal out. The next step was to screw in the brass fitting and insert the EGT sensor probe, then tighten per directions.
The last steps were to hook up the EGT probe cable to the Juice module, and then connect the Juice module main plugs to the engine’s wire harness. It would have been nice if Edge would have made slightly longer wire harnesses, since the engine’s wire harness is forced into a rather cramped, tight bend. It doesn’t appear to cause any problems and we inspected the plugs and wires, but it is a pretty tight bend nonetheless. That’s it! Installation is complete.
| Edge Prodcut’s Juice w/Attitude Combo Installation | ||||||||||||||||||
| Time: | 2.5 Hours | |||||||||||||||||
| Tools Needed: | Flat-tip screw driver, drill, 5/16″ drill bit, 1/8″ NPT tap, penetrating oil | |||||||||||||||||
| Difficulty: |  |
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| Edge Products |
| 1080 South Depot Drive Ogden, Utah 84404 Phone: 1-888-360-EDGE Fax: 1-801-476-3348 Email: sales@edgeproducts.com Web: www.edgeproducts.com |
We performed our installation only 8 hours before we partook on our 60 hour, 3,000 mile journey to the Easter Jeep Safari in Moab, UT. Our truck would haul our 4,500 pound project FJ40 on top of a steel, tandem axle trailer, including a fully loaded truck with a to-be-rebuilt Chevy V8 engine inside, as well. While we certainly were not at maximum GVW, there was a lot of weight to pull, and we were headed through the steep Rocky Mountains.
Our first tests however were conducted in the wee hours of the morning, just after installation, behind our feature editor’s house. At this point, you should know that the editors at 4X4REVIEW are generally impatient and usually about a subtle as whack to the forehead with a ball-peen hammer. So, with the instructions still safely sealed in their plastic baggie, the first order of business after pulling the $40,000 Duramax out onto the street was to crank the Edge Attitude control module to its “Extreme” power setting, ignore the on-screen warnings, and mash pedal decisively into the floorboard.
The truck shot forth with dragster-like speed, smoking the tires in the first three gears, and was followed by a cacophony of rattling metal. Something underneath the Silverado was protesting the Duramax’s new found power, and was doing so in a big way. Screeching to a halt, we pulled over and looked underneath, only to find that the Corsa muffler had slid off of the exhaust tube, just behind the downpipe-phew! We reattached the muffler-tightly this time-and parked the truck for the evening.
The next two days would be the real test for the Silverado with the Edge Product’s Juice/Attitude combo. We headed out onto the open freeways of the Midwest with the power setting at “1” – Fuel Saving / Economy mode. For the first ten hours of so, we played with the settings between 0 (Stock), and 2. We found we could gain about three miles per gallon in these settings-nice, considering fuel was at about $3.00 per gallon.
Rocky Mountains. Power setting 1 or 2 worked perfectly through the tight turns, and allowed us to shoot past slower traffic as if we were driving a car. The fully loaded rig and trailer seemed non-existent-awesome!
After our return home, we found a lonely stretch of road on which to conduct our final tests: the 0-60 runs. We added these figures to the charts below, containing the Corsa diesel performance exhaust system, and the Advanced Flow Engineering (AFE) performance intake and air filter system tests we performed a few months ago. As you can see, we shaved three full seconds off of our previous 0-60 time, which is something you’ll definitely feel in the seat of your pants!
The Edge Product Juice with Attitude combo is an easy-to-install, high-performance tuning system that has countless user-customizable settings. It is engineered extremely well, and has a host of built-in safety features to protect your diesel investment. The Juice with Attitude combo offers a horsepower and torque increase all the way up to 125 horsepower and 325 lb-ft of torque-amazing!
So if you’re looking to squeeze out massive amounts of power from your diesel truck, look no further than Edge Products-you won’t be sorry.
Performance Test Results
| Configuration | 0-60 Acceleration – Engine Cold / A.C. ON | 0-60 Acceleration – Engine Hot / A.C. ON | 0-60 Acceleration – Engine Hot / A.C. Off |
| Stock – O.E. Configuration |
11.75 seconds
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11.25 seconds
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10.25 seconds
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| Corsa Exhaust System |
11.25 seconds
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10.65 seconds
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9.90 seconds
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Net Difference from previous alteration
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– .50 seconds
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– .60 seconds
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– .35 seconds
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| AFE Stage II / Magnum Force kit |
11.10 seconds
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10.25 seconds
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9.35 seconds
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Net Difference from previous alteration
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– .15 seconds
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– .40 seconds
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– .55 seconds
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| Edge Juice & Attitude Combo |
8.10 seconds
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7.85 seconds
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7.60 seconds
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Net Difference from previous alteration
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– 3.00 seconds
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– 2.45 seconds
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– 1.75 seconds
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| Overall Net Results | – 3.65 seconds | – 3.45 second | – 2.35 seconds |
| Juice w/Attitude Product Testing | ||||
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| Edge Products |
| 1080 South Depot Drive Ogden, Utah 84404 Phone: 1-888-360-EDGE Fax: 1-801-476-3348 Email: sales@edgeproducts.com Web: www.edgeproducts.com |
