Precision Turbo and Engine BigStuff3 GEN3 Powertrain Controller Ignition Setup Tutorial User Manual
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GEN3 ECU - Ignition Settings for GM Cam Sync Drive
When using the GM Cam Sync drive and a BigStuff3 24 tooth wheel, the Factory or Dealer Ignition
Configuration, must be as follows:
• Ignition Type: COP
• Ignition Drive: Inductive: FYI - when COP is selected for Ignition Type, the Ignition
Drive is also automatically selected.
• Crank Input Select: IPU (when using MSD 8505, two (2) wire IPU sensor)
• Cam Input Select: HED
• Crank Edge: Rising – since all IPU sensors are rising edge
• Cam Edge: Falling for this distributor
• CAM HED Pullup: 12V
• Crank HED Pullup: None, since an IPU sensor is being used