MSD 8912 Tach Adapter for DIS 2 and DIS 4 Ignitions Installation - Manual

AUTOTRONIC CONTROLS CORPORATION • 1490 HENRY BRENNAN DR., EL PASO, TEXAS 79936 • (915) 857-5200 • FAX (915) 857-3344
MSD DIS Dual Ignition Adapter
PN 8912
IMPORTANT: Read these instructions completely before attempting the installation.
WARNING: During installation, disconnect the battery cables. When disconnecting the battery,
always remove the Negative cable first and install it last.
Parts Included:
1 - Dual Ignition Adapter, PN 8912
Note: The Wiring Harness that goes to the coil packs and ECU of your DIS Ignition should be
equipped with several bullet connectors. This allows for easy installation of the Adapter. If
the Harness does not have the bullet connectors as shown in Figure 1, contact MSD’s
Customer Service and they will send you a special wiring Harness.
MOUNTING MOUNTING MOUNTING MOUNTING MOUNTING
1. Select a location to mount the DIS Adapter. Make sure it is away from direct engine heat
sources and that all of the wiring will easily reach the MSD Ignition.
2. Using the Adapter as a template, mark the location of the mounting holes. Remove the unit
and drill each location using a ¼” drill bit. Secure the Adapter using ¼” hardware (not supplied).
WIRING
The Adapter has six wires that need to be connected. The chart shows each wire’s application.
Figures 1 and 2 show how to wire the Adapter to the DIS Ignitions.
Black Connects to Ground
Red Connects to 12 volt (Ignition)
Input:
Brown/White Connects to the White wire going to the
Coils and ECU.
Brown/Green Connects to the Green wire going to the
Coils and ECU.
Output:
White Connects to the White wire going to the
MSD DIS Ignition
Green Connects to the Green wire going to the
MSD DIS Ignition.
Figure 1 Installation to an
MSD DIS-2 Ignition.