Audi OEM 5-cyl trigger pattern aka "Tri-Tach"
Posted: Sun Jan 03, 2021 4:21 pm
Uses 2x VR sensors on flywheel + Cam-hall:
One VR keeps track of the starter ring for RPM/Position means (135 teeth) while the other senses an addition tooth ("HOME") analogous to a missing tooth trigger setup. Cam sensor is used for phase detection similar to typical fully sequential setups.
This trigger config is found on some early Bosch Motronic equipped engines such as Audi 3B, AAN, 2.2 ltr. turbo as well as some Porsche boxer-6 engines (starter ring teeth amount to be confirmed).
Fitting a newer OEM VAG 60-2 trigger is possible, but a PITA for most users.
https://rusefi.com/forum/viewtopic.php?f=2&t=1690&p=35956&hilit=Audi+trigger+135#p35956
By including this pattern, I recon more Audi 5-cyl users would be interested in the RusEFi plattform for their builds.
I have one candidate up for testing if this trigger would be implemented.
One VR keeps track of the starter ring for RPM/Position means (135 teeth) while the other senses an addition tooth ("HOME") analogous to a missing tooth trigger setup. Cam sensor is used for phase detection similar to typical fully sequential setups.
This trigger config is found on some early Bosch Motronic equipped engines such as Audi 3B, AAN, 2.2 ltr. turbo as well as some Porsche boxer-6 engines (starter ring teeth amount to be confirmed).
Fitting a newer OEM VAG 60-2 trigger is possible, but a PITA for most users.
https://rusefi.com/forum/viewtopic.php?f=2&t=1690&p=35956&hilit=Audi+trigger+135#p35956
By including this pattern, I recon more Audi 5-cyl users would be interested in the RusEFi plattform for their builds.
I have one candidate up for testing if this trigger would be implemented.