MSD-8 Plus Ignition

PN 7805

Cylinders Loops to Cut

8

None

6

One

4

Two

2

Three

Cut loops

Remove cap

WARNING: Before installing the MSD Distributor, disconnect the battery cables. When disconnecting

the battery cables, always remove the Negative (-) cable first and install it last.

Figure 1 Cylinder Programming.

1 - PN 8830 Filter

1 - Coil Harness

1 - Power Harness

1 - Parts Bag, Mounts, Terminals, etc.

Parts Included:

1 - MSD-8 Plus Ignition

1 - Mag Pickup Extension Harness, PN 8860

4 - Vibration Mounts and Hardware

4 - RPM Modules: 3K, 7K, 8K and 9K

FEATURES

SINGLE OR DUAL COIL OUTPUT

The MSD-8 Plus Ignition Control is intended for racing use only. The Ignition has the ability to be

used with single or dual coil systems. Note that when using a single coil, both coil positive wires must

be connected to the coil.

RPM LIMITERS

The MSD-8 Plus Ignition is equipped with a 2-Step Rev Control. The Ignition will accept two rpm

modules so two different rev limits can be set. One rev limit can be used for over-rev protection while

the second limit can be activated on the starting line for a lower rpm limit to assist in staging and for

consistent holeshots. When 12 volts are applied

to the 2-Step terminal (2’S’), Module 1 is active.

Module 2 is active when there is no 12 volts.

CYLINDER SELECT

This ignition can be used on 2, 4, 6 (even-fire)

or 8-cylinder engines. The ignition is set for

8-cylinder operation. To program the unit for

other engines, remove the one screw that holds

the cover to reveal three wire loops (Figure

1). Cutting a wire loop determines the cylinder

selection.

SPARK LED

When the coil fires, current is sensed and this LED will flash. These LEDs confirm that the ignition

has received a trigger signal and that the ignition is working properly. Each time a coil fires, current

is sensed and the corresponding LED will flash. (If the coil is not connected, the LED will not flash.)

When the engine is running, it will appear solid.

ONLINE PRODUCT REGISTRATION: Register your MSD product online. Registering your

product will help if there is ever a warranty issue with your product and helps the MSD R&D

team create new products that you ask for! Go to www.msdperformance.com/registration.