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INSTALLATION INSTRUCTIONS

CYLINDER PROGRAMMING

The Window Switch is programmed for 8-cylinder applications, however it can be used with 4 or 6-

cylinder applications. To program the Switch for different applications, the cylinder select loops

must be modified as shown in Figure 2. After cutting a wire loop, seal the wire end with the supplied

head-shrink caps. Use a heat gun or other heat source to shrink the cap for a good seal.

Figure 3 Wiring to an Inductive Ignition System.

MOUNTING

MOUNTING

MOUNTING

MOUNTING

MOUNTING

The Switch may be mounted under the hood as long as it is away from direct engine heat sources.

Keep in mind that the rpm modules should be easy to access for changes. The Switch can be

mounted with the double-sided tape or with the four self tapping screws supplied. Use the Switch

as a template and mark the mounting hole locations. Remove the Switch and drill the holes using

a 3/16" drill bit then install the screws.

WIRING

WIRING

WIRING

WIRING

WIRING

Red

Connects to a switched 12 volt source.

Black

Connects to ground.

White

The rpm input wire. With an MSD Ignition, this connects to the Tach Output terminal.

On inductive ignitions, it connects to the coil negative terminal.

Yellow

This is the circuit ground wire (normally open switch to ground). It connects to the

ground side of the device you plan to activate.

Note: Inductive ignitions only.

Figure 2 Cylinder Select Loops.

CYLINDERS

CUT LOOPS

8

NONE

6

RED

4

RED & BLUE