Trigger related page for MembersPage/EricN
Cam-phase
Using crane fireball optical trigger (already installed to get rid of the points) with 5 of the windows blocked off (only 1 pulse left per cam rotation) for cam phase (secondary_trigger).
cam-phase makes it theoretically possible to use
- sequential injection
- siamese intake runners - currently not supported by firmware
- coil-type primary trigger and still use direct (distributorless) ignition
Cam secondary_trigger position
- using rising / falling edge ?
- the position of the used edge is ... (make sure it is outside 0..50 crankdeg BTDC window if using 5..45 crankdeg ignadv BTDC )
primary_trigger
Planning VR sensor for crank input, (unless I can get away without it as the vehicle needs to appear bone stock) not sure on tooth count yet, maybe 60-2 or 36-1.
Brainstorming for how to make it look stock - avoiding 60-2 crankwheel
If the windows of the optical cam trigger are of different length, it can theoretically be used to be used as primary_trigger that also provides camsync. Unlike a missing-tooth camwheel (adding 5 windows to the existing optical trigger for 12-1 setup), that is supported by standard firmware, the different-window-size trigger requires firmware mods.