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Mallory Ignition Mallory HYFIRE VII Series Electronic Ignition Controls 667C User Manual

Page 8

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To nitrous stage 3 (+12 volts when active)

To nitrous stage 1 (+12 volts when active)

To nitrous stage 2 (+12 volts when active)

NC

C

NO

RPM2

RPM3

RET1

RET2

RET3

EXAMPLE 6: Using the High-Speed timing retard function

with a 3-stage nitrous system.

8

6

4

2

0

AD

V

ANCE

RPM

0

10k

8000

6000

4000

2000

EXAMPLE 7: High Speed Advance Curve (Modes 8 and 9)

SLOPE (Mode 8)

This is how much the timing advances for
every 1000 RPM. This example shows a
slope of 2.0 (2 degrees per 1000 RPM).

CUT-IN (Mode 9)

THIS IS THE RPM WHERE THE TIMING
STARTS TO ADVANCE. THIS EXAMPLE
SHOWS A CUT-IN OF 7.0 (7000 RPM)

MAXIMUM ADVANCE (Mode A)

This example shows a maximum of 2
degrees advance.

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