Mallory Ignition Mallory MAX-FIRE AND E-FIRE ELECTRONIC DISTRIBUTORS - Manual (Page 6)

MALLORY TECHNICAL SUPPORT 216.688.8300 www.malloryracing.com 6
Boost Retard Setting
Boost retard will retard the timing by the number
or degrees shown, per pound of boost. For
example, if you set the boost retard to .5, then
for every pound of boost, you will retard the
timing by 1/2 degree. 10 psi boost would cause
5 degrees of retard. If you are not using boost,
this setting has no effect.
PC Software
The PC software, EA_Comm, allows you to set
the distributor and see the advance curve on a
graph. You can also save and recall different
advance curves. EA_Comm has an advance
curve graph that shows the result of changes
made in the curve settings. The Screen Shot #1
below shows the user interface:
When you first start the software, the values
boxes will be blank. Make sure that your distributor
is connected to a COM port on your computer,
and powered up.
NOTE: Many laptops do not have external COM
ports. If this is your situation, there are readily
available USB to COM port adapters that will
work. Once the adapter is plugged into a USB
port and recognized by the computer, the COM
port will show up in the list in EA_Comm. Click
on the “COM port” arrow, and select the COM
port that is connected to your distributor. Then,
click “Read Data” to get the current distributor
program information. A progress bar will show
up over the curve graph as data are being read.
Once the distributor has been read, the screen
should look similar to Screen Shot #1.
SCREEN SHOT #1