Got the Edge Juice w/Attitude mounted in the truck the other day. The truck's an 05 Chevy Duramax Crew Cab dually.
It's got 6 settings you can set inside the cab, 0 through 5 with 0 being stock and 5 being "Extreme". The control unit is really cool, allowing you to monitor 4 out of 12 selectable items. I've got mine set to show EGT, gear, boost, and % engine load.
On the 3 setting, my fuel economy has gone up very substantially. About 18 mpg in normal driving. Suspect 20 might be possible on the highway.
Unfortunately, they don't want you to tow on the 3 setting. 1 and 2 are for towing and 2 is only for towing a trailer less than 6k lbs. Mine's 15k, so I'll be using 1, although I might try 3 on level ground to see what happens to fuel economy.
The control unit will also display your 0-60 times and 1/4 mile. I haven't found anywhere level and long enough to see what it'll do in the 1/4, but I was VERY surprised when I set it to the 5 level and romped it. A huge cloud of black smoke and the truck literally got squirrely on me and got wheel spin in 2nd and 3rd before showing I'd reached 60 mph in 7.7 seconds. Kinda slow, eh? Not for a 7000 lbs truck. And not for having to suddenly romp on it from idle. Turns out if you hold the brakes and spool it up, the timer starts as soon as you hit the throttle and before you let go of the brake. Bummer. I suspect that done properly the truck could do a 7-second 0-60.
To say the truck wakes up on the 5 setting would be an understatment. I don't remember the horsepower figures, but supposedly it's making 855 ftlbs of torque on that setting, and it certainly feels like it. Well, I don't know what 850+ feels like, but can tell you this thing turns into an absolute *beast* on the 5 setting. I was driving around on that setting and found it to be pretty stupid in town. Especially when the roads were wet. But it was fun shrouding cars behind me in a cloud of smoke.
Edit: Of course now that I've got this 05, I hear the new 06 is going to use the Allison 6-speed rather than the 5-speed (that'd be SO nice to have) and will make something like 700 ftlbs of torque. Figures.
