
Edge Products ______________________________________GM Juice-Attitude CS/CTS
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In our experience 1350 degrees is about as high as you want to let your EGTs go. Keep in
mind, the stress on your engine created by the heat is a function of both temperature and
time. A brief spike to 1400 that lasts a second is not that big a deal. Pulling up a hill for
several minutes at 1400 is far worse.
As you drive your vehicle in the various power settings, keep your eye on the EGTs.
Depending on how you drive and where you drive, you may find a particular power level is
more suitable to your power needs.
The Juice Module and your Transmission
The automatic transmission has a fluid-filled clutch-like device called a torque converter.
This device uses the spinning motion of the motor to drive the transmission which drives
your wheels. As the truck speed stabilizes, the torque converter engages a mechanical
connection which locks the two halves of the torque converter, so the output shaft is going
the same speed as the input shaft. This mechanical linking of the two halves is called
Transmission Lock-up. If the motor produces too much power, this mechanical lock-up
can start to slip. When this slippage occurs, the Juice module reduces the power output to
allow the transmission to function properly. This is a great feature that provides an extra
level of protection for your vehicle.
Transmission Relearning
The Allison transmission is a “Smart” transmission. That means that it pays attention to
how smoothly the transmission is changing gears, and modifies the shifting to improve
drivability. When the motor delivers more power (by adding the Juice module), the
transmission has to ‘re-learn’ how to shift. After first installing the Juice module, you may
notice rough shifting. The best way to re-teach the transmission is to set the truck in the
power level you will be using most of the time. Then set out to drive, some city, some
highway, varying the driving and the speed. A good rule of thumb would be 100 to 200
miles. Make sure that you shift through each gear 20 to 30 times. You will notice the
shifting becoming better, and your truck responding better to the additional power as you go
through the learning cycle.
Connecting and Installing the Juice
WARNING An electrical charge or battery acid can burn you. Battery gas can
explode or ignite. Take care when working around the battery. Follow instructions in the
vehicle owner’s manual for disconnecting and reconnecting a battery.
IMPORTANT: Read all Safety, Warranty, and Installation Instructions before installing
this product. Read through these instructions completely so that you understand each step
prior to installation.
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