This engine will need better ignition control than the existing models, and with this in mind, I have decided to revise my triggering arrangements to suit the MicroSquirt and other aftermarket ECUs I want to use. This will need a flexible triggering system, and I have opted to use an internal triggering arrangement, which is only possible with the revised timing gear front cover.. A few trigger wheel variants are shown below. I will be using a single or dual tooth trigger for Brian’s engine, and last image shows a MicroSquirt compatible missing trigger wheel configuration.











These are visual space models to check clearances, so the timing cover is removed for clarity.