DIM Electronic Advance Ignition

Bill,

I am using an optical wheel off the Borg-Warner unit, and a newer opto switch that has automotive temperature ratings. The opto is a zero speed trigger so it helps in development. I plan to add a component for the VR interface.

I am using an ignition driver component, so there no need for a GM module. I think the complete package will be smaller than a GM module. It can easily be hidden away.

There are 6 extra analog inputs, so it is possible to interface with knock sensor, O2 and other data logging signals. The tuning is done real-time, and the data logging interval can be as short as 10mS.

You are correct, it is similar to mid - 80's 2.2L mopar. I have done that before, and used sequential drive for quad coil ignition. There are advantages in that. I did knock control on the 2.2L turbo. There is windowing in the signal processing to reject other engine noise outside the ignition intervals.

For simplicity with OEM appearance, this unit will provide improved tuning and stability. If only there was more play time.