Edelbrock 70050 Instruction - page 20
2.14 Arming
Switch
The arming switch is a red, lighted switch that is a “MASTER” arming switch for your nitrous
system. Without it, your nitrous system would be “on” all of the time and capable of coming on
anytime you go to wide-open throttle conditions. The switch when in the “armed” position is well
lit, therefore it should be placed in an obvious position, well within the line of sight and easy
reach of the driver.
2.14.1 Arming
Switch
Installation
1.
Locate the final position of your arming switch.
2.
Drill a .450” hole for the switch location.
3.
Insert the switch from behind the mounting hole and secure with the switch nut.
4.
Do not wire until all other mechanical components are in place. Please see the
electrical system installation instructions for further information.
Note: There is a collar included with the switch for applications that require special
spacing during installation.
2.15 Microswitch Installation and Wiring
The function of the microswitch is to enable your nitrous system. It should be installed
so that the switch is forced closed by coming in contact with the carburetor linkage only
at the wide open throttle position. The nitrous system must only function at fully-loaded
wide-open throttle operating conditions.
Microswitch Safety Information
1. Do not allow wiring from the microswitch to come in contact with heat sources on
the intake manifold such as EGR risers or passageways.
2. Do not run wires to the microswitch that can create interference with the operation
of the carburetor linkage.
3. The microswitch must be located in such a way as to be clear of the normal
operation of the carburetor linkage.
4. Do not directly expose the microswitch to liquids (water, gasoline).
Pictured here is an unmodified
microswitch bracket, and a “ready to
i n s t a l l ” m i c r o s w i t c h a s s e m b l y .
The switch bracket has several
mounting positions available for
clocking of the switch. It also is of a
universal length and can be attached
to several positions on and around the
carburetor linkage.
The bolts used to attach the
microswitch have extra length to allow
for spacing the microswitch away from
the bracket to offer a level of
adjustability of the microswitch. After
determining the position of the
microswitch, we recommend trimming
the bolts for a clean installation.