AMP EFI MS3Pro - Chrysler 318; 360 Magnum V8; Chrysler VVT Hemi; Ford 36-1

5.3 Ignition settings 5 SETTING UP A BASIC CONFIGURATION
Chrysler 318 / 360 Magnum V8 These engines used an eight tooth flywheel trigger and a one tooth trigger
in the distributor. This can be used to trigger a distributorless ignition as well, as long as you keep the distributor
body, sensor, and trigger wheel.
• Ignition input capture: Falling Edge
• Trigger wheel arrangement: Dual wheel
• Trigger wheel teeth: 8
• Tooth #1 angle: 142
• Main wheel speed: Crank wheel
• Second trigger active on: Falling edge
• And every rotation of: Cam
Chrysler VVT Hemi These used a 60-2 crank wheel with the same tone wheel used on the earlier (NGC)
motors on the cam.
• Ignition input capture: Rising Edge
• Trigger wheel arrangement: Dual wheel with missing teeth
• Trigger wheel teeth: 60
• Missing teeth: 2
• Tooth #1 angle: 693
• Main wheel speed: Crank wheel
• Second trigger active on: Falling edge
To complete the cam wheel settings, you will need to set the cam decoder to “Hemi VVT” under the VVT Settings
menu.
Ford 36-1 This pattern shows up in many four, six, and eight cylinder engines. Note that for VVT engines
other than the Coyote, use the Zetec VCT pattern instead of Toothed Wheel. Many of these installs require a 10K
resistor across CKP+ and CKP- to avoid losing sync at high RPM.
• Ignition input capture will depend on the crank sensor wiring.
• Trigger wheel arrangement: Dual wheel with missing teeth
• Trigger wheel teeth: 36
• Missing teeth: 1
• Tooth #1 angle depends on the number of cylinders and the cam sensor. If the tooth #1 angle is set to the
version, the engine will be able to run in wasted spark or wasted-COP mode, but not with sequential coil on
plug.
Cylinders Possible Tooth # 1 angles
4 80 or 440
6 50 or 410
8 40 or 400
• Main wheel speed: Crank wheel
Some of these used Hall effect cam sensors and others used VR type ones, but engines without VVT all used a
single tooth cam sensor. You may need to adjust the second trigger settings depending on the sensor type.
AMP EFI MS3Pro manual version 1.202, firmware 1.5.0, 4/21/2017 Page 85