INSTALLATIONINSTRUCTIONS

5

When 12 volts are applied, this wire activates several features including;

Launch rev limit, Launch Retard value, Launch Timing Curve and will reset

This wire activates the Burnout rev limit when 12 volts are applied.

This 2-pin connector plugs into a Cam Sync Sensor to indicate when the

number one cylinder is triggered.

This wire is used to connect to breaker points or trigger pickups (Dyna* or

MSD), electronic ignition amplifier output or to the trigger output of the ECU

This wire is used to connect to breaker points or trigger pickups (Dyna* or

MSD), electronic ignition amplifier output or to the trigger output of the ECU

Ground to Trigger Pickups.

+12V to Trigger Pickups.

This wire connects to the coil 2 negative (-) terminal. This is the

ONLY wire

that makes electrical contact with the negative coil terminal.

This wire connects to the coil 2 positive (+) terminal. This is the

ONLY wire

that makes electrical contact with the positive coil terminal.

This wire connects to the coil 1 negative (-) terminal. This is the

ONLY wire

that makes electrical contact with the negative coil terminal.

This wire connects to the coil 1 positive (+) terminal. This is the

ONLY wire

that makes electrical contact with the positive coil terminal.

This wire is responsible for turning the MC-4 On and Off as well as supplying

power to the triggers. Connect to a switched 12 volt source such as the ignition

key or switch. Also recommended for lanyards.

This wire connects to a good ground, either at the battery negative (-) terminal

or to the engine.

Note: Engine must be grounded to battery negative.

This wire connects directly to the battery positive (+) terminal or a positive battery

junction such as the starter solenoid.

Note: Do not connect to the alternator.

OPTIONAL BOOST RETARD CURVE

The MC-4 has an external 3 - pin connector (Figure 4) that will attach to one of two optional

Map Sensors PN 23121 (2 Bar) 2-29 psi or PN 23131 (3 Bar) 2-44 psi. When this sensor is

used, a timing curve can be programmed into the MC-4 based on the pressure within the

intake manifold. This is especially useful for turbo applications. This feature is programmable

from 2 to 45 psi in 0.25 psi increments, from 0-25° retard in .1° increments.

WIRING FUNCTIONS

These are the two heavy 12 gauge wires and are responsible for getting direct

battery voltage to the ignition. The Ignition is load protected from reverse battery

connections and will automatically shut down if there is over 27 volts input.

PowerLeads

HeavyRed

HeavyBlack

IgnitionSwitch

Red

Coils

Brown/Orange

Brown/White

Brown/Orange

Brown/Green

TriggerPickups

White/Blue

Black

White(Coil1)

Green(Coil2)

2-PinConnector

CamSync

LightBlue

LightGreen

Accessories

3-StepRev

LightBlue

DarkBlue

Figure 4