Zipper's Performance 309-575 - Manual (Page 15)

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EI5011.doc
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WARNING! BEWARE OF DETONATION! SEVERE PRE-IGNITION OR DETONATION
CAN DAMAGE THE ENGINE BEYOND REPAIR. IF SPARK KNOCK IS
HEARD OR YOU CAN READ DETONATION ON YOUR SPARK PLUGS
IMMEDIATELY STOP TESTING AND RETARD THE IGNITION TIMING AT
THAT RPM TO REMEDY THE SITUATION.
Tuning maps may be modified using the following procedure:
1. Make sure the window with the map to be modified is selected by clicking
anywhere inside the map with the mouse.
2. Modify the map points by either:
a. Using left or right arrow keys to select a point, and use the up and
down arrow keys to adjust the value of the point
b. Use the mouse to select and adjust the points
Tip: It is important to “smooth” the surrounding points to avoid abrupt changes in
ignition timing. For example, if the engine needs less timing 1200 RPM, it is
going to need less timing on the points surrounding it.
Tip: To quickly create a straight line between two points, use the ”Point Point Fill”
(PPF) feature:
1. Select the first point and press the “P” key on the keyboard. The
point will turn green.
2. Select the last point and press the “P” key on the keyboard. The
point will turn green.
3. Press the “F” key on the keyboard. The points in-between the two
green points will form a straight line.
Tip: When a point is selected, pressing the space bar will toggle the actual value
of that point.
Figure 7—Space Bar Toggles Value