PN2905 Datasheet, PDF (1/4 Pages) Mallory performance club – Atomic EFI Throttle Body

Atomic EFI Throttle Body
PN 2905
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Thank you for purchasing the MSD Atomic EFI Throttle Body. The throttle body features integrated fuel
rails, injectors, ECU, and sensors to minimize the difficulties associated with converting carbureted
fuel systems over to Electronic Fuel Injection. Since the Atomic Throttle Body uses a standard 4 bolt
pattern used by most carburetors on the market today, the Atomic Throttle Body is a true bolt on design.
Parts Included:
1-Atomic EFI Throttle Body
1-Intake Manifold Gasket
1-Air Cleaner Gasket
Parts needed but not included:
4 – Retaining Stud Kit for the throttle body
Fuel system: Fuel pump, fuel filter, fuel line,
fuel pressure regulator (return system)
Atomic EFI Power Module
Atomic EFI Handheld Programmer
Throttle linkage connection/brackets
Ignition system
The Atomic Throttle Body has a 4160 bolt pattern and will fit most 4 barrel manifolds. It is designed
to accept common throttle linkage adapters and brackets. A throttle ball stud is supplied but no other
linkage components are included. Accessory kits are available through many accessory or carburetor
companies. There are two fuel inlets, a forward and rear fuel inlet. Only one needs to be connected
on a PWM style system as fuel is delivered to either side through an internal fuel rail. On a return style
system, an additional -6AN O-ring fitting will be required to run the fuel through the other rail into
the fuel pressure regulator. The passenger side of throttle body, where the MSD is machined, is the
Electronic Control Unit (ECU). This block houses the ECU of the Atomic Throttle Body.
FUEL SYSTEM
The Atomic EFI Throttle body will work with a returnless (Figure 1) and return (Figure 2) style fuel system.
Note: Do not use tubing (hard fuel lines) with the Atomic EFI return-less system.
CORRECT RETURNLESS (PWM) INSTALLATION
FUEL TANK
FUEL
FILTER
FUEL
PUMP
NOTE: Do not use tubing (hard
fuel lines) with the Atomic
EFI system.
Figure 1 Atomic Returnless Fuel System.
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