Technical information

AUTOTRONIC CONTROLS CORPORATION • 1490 HENRY BRENNAN, EL PASO, TEXAS 79936 • [phone] • FAX [phone]
www.msdignition.com email: [e-mail]
95
STARTER
SOLENOID
(FOR RETARD)
BLACK
WHITE
WHITE
RED
RED
NOT
USED
ORANGE
BLACK
SWITCHED 12 VOLTS
FROM IGNITION KEY
MAGNETIC
PICKUP
YELLOW
VIOLET
BROWN
ORANGE
+
+
TO BATTERY
TO BATTERY
HEAVY BLACK
HEAVY RED
12V
ACTIVATION
12V
ACTIVATION
STAGE 1
NITROUS
SOLENOID
STAGE 2
NITROUS
SOLENOID
T
A
C
H
C+
C-
IGN
PTS
M+
M-
GROUND
RPM
7200
GRAY
STAGE 3
NC MICRO SWITCH
ON SHIFTER FOR
HIGH GEAR
OR
DISTRIBUTOR
PN 8970, PN 8972 TIMING CONTROL
RETARD WIRE
12V
ACTIVATION
BUTTON
NITROUS
SOLENOID
SOLENOID
WINDINGS
By connecting the retard wire to the 12 volt activation wire of the nitrous solenoid, the wire
recieves a ground path through the windings of the solenoid. When the activation button is
pressed, 12 volts is applied to the wire, thus removing the ground path and activating the
retard stage.
CONNECTING A RETARD STAGE
THROUGH A NITROUS SOLENOID