INSTALLATION INSTRUCTIONS
M S D I G N I T I O N
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1. Connect the Gray wire from the "RAS On/Off" terminal, to a micro switch that will close
only
when
high gear is activated. The other side of the switch must have 12 volts.
2. Connect the supplied Yellow wire from the “Output RAS” terminal located at the top of the middle
terminal strip, to the ground side of the nitrous solenoid. When the engine reaches 5,000 rpm in
high gear, a ground path will be provided to the solenoid.
3. During the range of lower gears, even when the engine reaches over 5,000 rpm, the solenoid will
not activate. When high gear is activated, the micro switch closes and 12 volts is applied to the
"RAS On/Off" terminal which prepares the "Output RAS". The "Output RAS" provides a ground circuit
for the nitrous solenoid.
note:
The solenoid will remain activated until the micro switch removes
the 12 volts from the "RAS On/Off" or until the rpm falls 5% below 5,000 (or whatever module is
installed).
MultI-SteP RetARD
There are four retard modules available with the 7AL-3. Each module is activated independently
by removing ground from the corresponding module. The controlling terminals are listed as RET-1
through RET-4 and are located on the third terminal strip. The modules can be activated in any order
and are cumulative unless deactivated. The maximum amount of retard allowed is a total of 20° even
if the modules add up to more than 20°.
note:
If a Retard function is not going to be used the corresponding terminals must be grounded,
or a "zero" degree module must be installed.
connecting the Multi-Step Retard Function
In this example, we will connect three of the four retard modules (Figure 11). One to the first nitrous
solenoid, another to the second nitrous solenoid and a third for a high speed retard that engages
when high gear is pulled.
note:
by connecting to the 12 volt source side of the nitrous solenoid, the wire receives ground
through the windings of the solenoid.
1. Connect the supplied brown/White wire from the RET-1 terminal to the 12 volt source side of the
number one nitrous solenoid. With the solenoid not activated, the wire will be grounded through
the solenoid. When 12 volts is applied to activate the solenoid, the ground will be removed which
will activate RET-1.
Figure 11 Connecting the Multi-Step Retard.
NOTE: RET4 IS NOT USED, SO A "zERO"
DEgREE MODULE MUST BE INSTALLED
IN MODULE #4 OR THE TERMINAL
MUST BE gROUNDED.
