MSD 2910 Atomic EFI Master Kit Installation - Manual (Page 13)

INSTALLATION INSTRUCTIONS 13
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Timing Control: Choose between Enabled and Disabled. If
Timing Control is Enabled, its features will be edited in the
Advanced Setup. (Please see page 16 for more details on
this option.) Note: It is recommended to start the engine
initially without timing control.
ADVANCED SETUP
Each of the settings in the Advanced Setup is optional. None of
them are required to be edited at any time if they are not needed
by your particular application. They are each designed to offer
additional functionality to be used at your choice. For initial start,
it is recommended to leave the defualt settings.
Fan Control - Use the Atomic to control two electric fan
circuits. Each circuit can be turned on by selecting a
start temperature using the joystick to go up or down
in single degree increments. The fans will automatically
shut off when the engine reaches 10˚ cooler than the start
temperature. The two circuits can be used for independent
fans or a single multispeed fan. A relay is required for
each fan.
A/F Targets: The Atomic provides an option to set an air/fuel
target for Idle, Part Throttle, Wide Open (WOT), Nitrous and
Boost. The Atomic will use its self-learning technology to
adjust the fuel delivery to meet the target air/fuel ratio. The
values are adjusted in 0.1 increments and range from rich
at 10:1 to leaner at 16:1. The ideal air/fuel ratio for cruising
is called stoichiometric and is commonly referred as a
14.7:1 air/fuel ratio.
Boost: The Atomic will switch to the commanded Boost
A/F ratio once manifold pressure reaches 110 KPa
/ 16 psia.
Nitrous: There is also a timing setting for a Wet Nitrous
System. When a nitrous system is activated (by
supplying 12 volts on the Violet Power Module wire),
the Atomic will adjust its internal target A/F ratio to
the commanded Air/Fuel ratio. Note that in order to
set a Nitrous Air/Fuel target, and set a timing retard,
the Nitrous Selection in the Advanced menu MUST
be programmed to ENABLE.
Timing Control - The Atomic EFI system has the ability to
control the engine’s ignition timing, however, an MSD
Ignition Control and adjustable rotor are required to use
this feature. For initial startup, it is recommended to bypass
the Atomic's timing control features. This will allow you
to start the engine and tune the EFI to your engine. For
more details and complete instructions for Timing Control,
please see page 16 of these instructions.
Figure 12 Initial Setting
Advanced Setup
Fan Control
Air/Fuel Targets
Timing Control
Figure 13 Advanced Setup.