5.3 Ignition settings 5 SETTING UP A BASIC CONFIGURATION
We use the term "tooth #1" as it is consistent across wheels with one, two, three or four missing teeth in the
group. Once the code knows the tooth #1 angle it automatically calculates other needed information internally.
Clockwise rotation (normal) - method A
Set your engine at TDC, then count the number of gaps to tooth #1 in the direction of rotation (clockwise here),
and multiply by the angular size of the tooth: e.g. 8 teeth * 10° per tooth = 80°
• 36-1 wheels are 10° per tooth (360° / 36 teeth)
• 60-2 wheels are 6° per tooth (360° / 60 teeth)
• 24-2 wheels are 15° per tooth (360° / 24 teeth)
Clockwise rotation (normal) - method B
A different way of looking at the same phasing. Turn your engine so that tooth #1 aligns with the sensor. Read
off the tooth#1 angle from timing marks/tape on the crank pulley.
AMP EFI MS3Pro manual version 1.202, firmware 1.5.0, 4/21/2017 Page 67
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