PN2910 Datasheet, PDF (14/28 Pages) Mallory performance club – Throttle Body Kit

14
INSTALLATION INSTRUCTIONS
Pump Squirt - To assist in throttle transitions the Atomic EFI
has a feature to mimic the pump squirt of a carburetor.
This works by increasing fuel delivery by a prescribed
percentage any time there is an increase in throttle
position. If needed, make small changes of no more
than 5% increments without further testing. 25% is
sufficient for most engines. Almost all vehicles will use
between 15 and 35% pump squirt
Power Valve Enrich - To assist in manifold pressure
transitions the Atomic EFI has a power valve feature.
This works by adding fuel based on MAP transitions
while moving the throttle. Large cam vehicles with
low vacuum generally required a slightly smaller
number while stock/small camshaft vehicles with a
high vacuum may require more. If needed make small
changes of no more than 5% increments without
further testing, 25% is sufficient for most engines
but between 15-35% is normal. Typically, the higher
the vacuum (more stock) the higher the percentage
needed.
Pump Squirt
something else
DISPLAY OPTIONS
Figure 14
Using the features in this section, users will be able to control the look of the Handheld unit. This section
is also home to information regarding the Firmware and resets.
LCD Contrast - Adjust the contrast on the LCD screen if it is hard to see the display. Brightness is
adjusted using the joystick to go up or down in five percentage increments.
Backlight Level - The brightness of the screen is determined by this setting. The Backlight Level may
need to be adjusted depending on outside light levels. Brightness is adjusted using the joystick
to go up or down in five percentage increments.
Display Units - The Atomic can display items in either English (cubic inches, Fahrenheit) or Metric
(liters, Celsius).
Default Display - This selection provides the opportunity to select what screen you want the handheld
to display at power on. The choices are Main, Dash or Gauges.
Backlight Timeout - This setting lets you control when the Handheld backlighting turns off. It can be
set to Disable where it will always be illuminated, or it can be set to turn off from one second to
300 minutes after it is powered on.
Set Atomic Defaults - Use this feature to reset the Atomic EFI. Selecting “YES” on this screen will take
all setting, including fuel maps, back to the factory defaults. Typically this will only be done when
the Atomic is being installed on a different engine.
Firmware Versions - This is where information can be found on what is controlling the Atomic. If MSD
releases an update, use this screen to determine which firmware is currently on the system to
compare to the number of the release.
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