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©2008 Edelbrock Corporation
Catalog #71900
Brochure #63-0473
Rev. 08/08 - AJ/mc
An optional RPM window switch may be
connected here. Any RPM switch with a ground
control output may be used.
NOTE - Most factory fuel injection systems will
cut the fuel during an over-rev condition. If the
nitrous is NOT controlled by an RPM switch,
engine damage may result.
Typical Progressive Controller Wiring Diagram
Arming
Switch
W.O.T.
Switch
Transbrake
Switch
Transbrake
Solenoid
Ground
Ground
+12 Volts
+12 Volts
+12 Volts
87A
87
86
85
30
87A
87
86
85
30
Activation
+12 Volt
+12V Timer Output
Ground
Fuel Solenoids
Nitrous Soelnoids
Progressive Controller with Transbrake Wiring Diagram
Ground
Nitrous
Solenoid
Fuel
Solenoid
Ground