AEM Infinity Supported Applications - Universal V8 Engine - Manual (Page 9)

Universal 8 9
© 2014 AEM Performance Electronics
MSD Distributor + MSD 4 Magnet Crank Trigger Kit
1. Modify and install mechanical advance distributor. (See Modifying Mechanical Advance Distributor , in
this document.)
2. Install MSD crank trigger kit. Orientate crank trigger wheel such that the arrow on the face of the
trigger wheel is between the 10 o’clock and 11 o’clock position with the engine at TDC. Position the
crank sensor such that it’s approximately in the middle of the adjustment range. Set sensor air gap to
.060”.
3. Wiring – note that sensor wiring may be different from what MSD instructions indicate. The Infinity
ECU can only accept falling edge VR/mag wave forms. If in doubt, verify sensor signal with an
oscilloscope.
Crank Sensor – MSD Non-Magnetic VR Sensor Cam Sensor – Modified MSD Distributor
Wire Desc Connect To Wire Desc Connect To
Green Crank signal + C1-45 Crk Pos Sens VR+
Black/
Purple
Cam signal + C1-48 Cam Pos Sens 1 VR+
Purple Crank signal - C1-46 Crk Pos Sens VR-
Black/
Orange
Cam signal - C1-47 Cam Pos Sens 1 VR-
Note: Use shielded tw isted pair w iring w /drain to
ground. Note: Use shielded tw isted pair w iring w /drain to
ground.
4. Load MSD Crank Trigger base session and review Setup Wizard. (See Setup Wizard , in this
document.)
5. Sync ignition timing. (See Syncing Ignition Timing , in this document.)