MSD 2960 Atomic LS7 Master Kit Installation - Manual (Page 2)

2 INSTALLATION INSTRUCTIONS
M S D
• W W W . M S D P E R F O R M A N C E . C O M • ( 9 1 5 ) 8 5 5 - 7 1 2 3 • F A X ( 9 1 5 ) 8 5 7 - 3 3 4 4
CAPABILITIES
The Atomic LS7 kit is designed to fit the original equipment intakes. The Atomic LS7 kit is a self
integrated Fuel and Ignition controller for GEN-IV motors that requires no programming with a PC. The
interface is controlled through a supplied hand held controller. The ECU only needs basic configuration
information. Once the engine warms up to operating temperature, the ECU tunes itself off of its basic
configuration to ensure the best performance and throttle response for your engine. The atomic will
adjust timing and fuel curves on the fly which in turn produces the smoothest idle, best fuel economy,
and superior wide open throttle performance at all times. This also means that weather and altitude
changes aren’t a problem with this system.
The Atomic LS7 kit uses all OE sensors with the exception of the wideband O2 sensor and the Intake
Air Temperature sensor (IAT) supplied with the kit. The Atomic LS7 system only supports a cable
driven throttle body at this time.
Note: The drive-by-wire throttle body will have to be converted to a cable drive throttle body like the
MSD PN 2940.
COMPONENTS
Power Module: The Power Module of the Atomic LS7 is the
communication hub of the system and provides the high current
fuel pump circuit and other input/outputs for optional features. The
unit has two ports for the MSD CAN system as well as a wiring
harness. There are connections for the WB02, the Handheld
Monitor as well as Rail Power and CAN communication to the
integrated fuel rails.
Handheld Programmer: The Atomic LS7 is a self-tuning fuel and
ignition control system. The system only needs the basic engine
configuration information to build a fuel table for the engine. The
Handheld Programmer is used to enter all the engine parameters
into the ECU, and uses the MSD CAN to communicate with the ECU. Once
the engine has been started and warmed up to operating temperature,
the ECU will monitor the sensors. The ECU will then adjust the fuel table
and ignition in order to maintain a properly running engine.
Fuel Rails/ECU: The Fuel Rails/ECU is combination of the electronics that drive
an ECU and a fuel rail assembly built into one unit. All of the engine sensor
connectors (except for the wideband O2 which connects to the Power
Module directly) are found on the fuel rails. The fuel rails are equipped
with -6AN fittings, but will accept -8AN fittings (the internal rail orifice is
the same diameter as the -8AN).
Handheld
Programmer
Power
Module
Drivers Side Fuel Rail Passenger Side Fuel Rail
E F G H
E F G H
D L PHI D L PHI
E F G H
E F G H
D L PHI D L PHI