Figure 1

Digital 2-Step

PN 8732

For the Digital 6AL Ignition Control, PN 6425

Parts Included:

1 – Control

4 – Mounting Screws

WARNING: During installation, disconnect the battery cables. When disconnecting the

battery, always remove the negative cable first and install it last.

Note: Must be used with an MSD Digital 6AL Ignition, PN 6425.

GRAY

TO

SWITCHED

12V

BLACK

TO GROUND

BLUE

RED

ACTIVATE THE

2-STEP WITH

12 VOLTS

TO

TACH WIRE

ON MSD 6AL

PN 6425

X1000

X100

ALWAYS SET THE RPM VALUE

WITH THE PRINTED NUMBER ON

THE HOUSING. THIS FIGURE

SHOWS A SETTING OF 3000 RPM.

OPERATION

The Digital 2-Step Control is designed

specifically for the MSD Digital 6AL

Ignition Control, PN 6425. It provides

the ability to set an rpm limit to be used

during the launch of the vehicle through

a switch or tied into a line-lock device

or trans-brake.

There is a Blue wire coming out of the

2-Step, that controls when the launch

rpm limit is activated. When this wire

is connected to 12 volts, the 2-Step is

activated. When released, the rpm limit

that is set in the Digital 6AL Ignition is

active. This wire can be tied into a trans-

brake circuit, a clutch switch or simply

a stand alone switch.

RPM LIMIT

The rpm limit is set with the two rotary dials, in 100 rpm increments. The limit can be programmed

from 2,000 rpm to 11,800 rpm. (The position for 11,900 is reserved for use with MSD's Power Grid

ignition system.)

LED

There is a useful LED built into the Digital 2-Step. This LED will illuminate when 12 volts are applied to

the Blue wire and the low rpm limit of the 2-Step is active. When 12 volts are removed from the Blue

wire the 2-Step rev limit and the LED will turn off.

3-STEP

If you prefer to have three different rev limits, a second PN 8732 could be used to provide a third rev

limit, such as for use during the burnout.

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