I am interested in adding an additional crank trigger wheel to my engine so that I may utilize MegaSquirt. The BMW M20B27 I'm targeting has its own crank trigger wheel and sensors in stock configuration, but they appear to be incompatible without significant MS source code modification. Does the GCR allow the addition of a crank wheel and sensor? Just the trigger wheel or sensor? Thanks.

This would be for a BMW E30 325e running in ITA.


9.13.D.1.e
Any ignition system which utilizes the original distributor for spark timing and distribution is permitted. Internal distributor components and distributor cap may be substituted. Crankfire ignition systems are prohibited unless fitted as original equipment.