PN8394 Datasheet, PDF (1/8 Pages) Mallory performance club – MSD Pro-Billet Digital E-Curve Distributor

MSD Pro-Billet Digital E-Curve Distributor
PN 8394 - U.S. Patent 6820602
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Important:  Read these instructions before attempting the installation.
Parts Included:
1 - Digital E-Curve Distributor
1 - Rotor, PN 8467
1 - Distributor Cap, PN 8433
1 - Wire Retainer
2 - 1.5" Self Tapping Screws
1 - 3-Pin Harness
1 - Gasket
1 - Tube of Gear Lubricant
2 - O-Rings
1 - Timing Tape Set, PN 8985
WARNING: Before installing the MSD Digital E-Curve Distributor, disconnect the battery cables.
When disconnecting the battery cables, always remove the Negative (-) cable first
and install it last.
Note: The terminals of this Digital E-Curve Distributor require spark plug style terminals. You may
need to change the terminals and boots of your wires. MSD offers two kits, PN 8849 or PN 8848
that are supplied with nine boots and terminals.
Note: If the gear is ever replaced, MSD Gear (PN 8531) ^Rev
is required for replacement due to the .500" ^Limiter
diameter shaft.
DIGITAL E-CURVE FUNCTIONS
RPM LIMIT
This distributor is equipped with an adjustable rev limiter. It
is adjustable from 5,000 - 10,000 rpm by a rotary dial under
the cap and rotor (Figure 1). The rpm will not exceed your
selected amount to protect the engine from overrev damage.
Timing
Switch 1
Timing Switch 2
Figure 1 Rotary Dial Adjustments.
TIMING FUNCTIONS
Electronic Advance Curve Operation: The Electronic Advance Curve is managed by a microprocessor
built into the ignition module. You can program an electronic timing advance curve by adjusting two
rotary switches under the distributor cap (Figure 1). A magnetic pickup is used as a trigger device
that tells the ignition module when to fire the coil. The pickup is triggered by a reluctor mounted to
the distributor shaft. This means that you have to set the distributor at the highest, or Total, amount
of advance that you want to achieve (including vacuum advance) and compensate with one of the
selectable ignition curves (shown on page 4). Following are important definitions that will be used to
set up your timing.
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