History of InputTrigger/AudiTrigger
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2015-06-26 10:47:45 . . . . catv-80-98-222-153.catv.broadband.hu [cam HALL sensor is in the distributer of 3B only. Added AAN note]
2015-06-26 10:36:49 . . . . catv-80-98-222-153.catv.broadband.hu [cam HALL sensor is in the distributer of 3B only. Added AAN note]
2010-06-08 11:33:38 . . . . 3e44bc28.adsl.enternet.hu [11500 RPM log]
2010-02-05 02:58:11 . . . . 3e70cfcb.adsl.enternet.hu [more about alternatives]
2009-07-28 04:35:55 . . . . MembersPage/MattiasSandgren [Fixed link]
2009-06-21 16:44:44 . . . . 3e44b057.adsl.enternet.hu [auditrigger camHALL inverter split to its own page]
2009-06-02 04:09:15 . . . . 3e44ba22.adsl.enternet.hu [how to verify if camHALL inverter is included]
2009-03-24 09:11:35 . . . . 3e44aeac.adsl.enternet.hu [starting with failed HALL sensor]
See complete list (65 entries)


Changes by last author:

Changed:
** Cam-HALL inverter is default (for boxes requested with "for audi application" in the order note or auditrigger w/cam-HALL-inverter option selected) since 2008-06. Most users just need to remember that their boxes have cam-HALL inverter and choose that in the setup dialog, see VemsTune/QuickStartAudi
** Cam-HALL inverter is default (auditrigger w/cam-HALL-inverter option selected) since 2008-06. Most users just need to remember that their boxes have cam-HALL inverter and choose that in the setup dialog, see VemsTune/QuickStartAudi
Changed:
Maximum RPM for auditrigger is not 25500 RPM like for many other (mostly low toothcount) triggers.
Maximum RPM for auditrigger is not 25500 RPM like for many other (mostly low toothcount) triggers, but still much higher than what the rods tolerate.

* [vemslog] file with 11500 RPM (135 tooth, 5cyl) setup.

** Since than, eg. with 1.2.27 fw 15000 RPM easily reached (on bench, with good output actuation). That is >2 million teeth / minute.

** Divby9 is usually used above 10k RPM for perfect margin for teeth-deviations. Way above the max RPM the engine supports mechanically (divby27 gives even slightly higher peak RPM => no real-world significance ).

Deleted:
* [vemslog] file with 11500 RPM (135 tooth, 5cyl) setup.

** With this 135 tooth setup, around 12000 RPM it starts to miss spark activation (even if sparkcut is configured higher). In other words, at 1620000 teeth / minute. total 60000 sparks + injections per minute is no limit otherwise.

** slightly modified config, auditrigger setup + advanced missing tooth filter=ON in 1.1.78 means divby26 (note: this config might change in future)

** the earlier setups have lower limit than this (and future ones might possibly have even higher)

Changed:
* The HALL sender is in the distributor, and the HALL trigger wheel has ONE slot acting as CAM reference. CAM ref and the Crank pin must overlap each other for the engine to start in the stock application.
* The HALL sender is at the front of the engine (cambelt pulley) in AAN/ABY/ADU engine (fix position, hard to get wrong); in the distributor (3B engine : adjustable: possible to turn to wrong position).

** the HALL trigger wheel has ONE slot acting as CAM reference. CAM ref and the Crank pin must overlap each other for the engine to start in the stock application.

Changed:
These engines use a homebrew ignition module with a visible TO-3 transistor in the ignition coil console. (at least the ones I have seen) Igniton computer is made by Hitachi (MAC-xx).
----

Some (???) engines use a homebrew ignition module with a visible TO-3 transistor in the ignition coil console. (at least the ones I have seen) Igniton computer is made by Hitachi (MAC-xx).

Changed:

The same type of triggersystem is used on many older Audis, even the Audi V8 had it until it was replaced with the A8. The engines with an even number of cylinders has an 136teeth flywheel to make everything add up.

The same type of triggersystem is used on many older Audis, even the Audi V8 had it until it was replaced with the A8. The engines with an even number of cylinders has an 136teeth flywheel to make everything add up. (other toothcounts... See below)
Changed:
135 interrupts per crank-rotation still needed, but the interrupt code is shorter than for 60-2 wheels, allowing 9000+ RPM.

Above 9000 RPM most users apply 10+1 InputTrigger/MultiToothNoneMissing (5 evenly positioned crankpulse and 1 campulse). 15-1 style missing tooth crankwheel was also successfully used, but 5 evenly positioned crankpulse is simpler. The only disadvantage of 5*72 degree crankwheel is that camHALL chosen edge must clear the crankpulse even with the worst case of cambelt sloppiness (ideally midway between the neighbor crankpulses, 36 degrees from each). With 15-1 wheel just make sure campulse stays away from the tooth after the missing cranktooth.

Earlier, some users applied 10+1 InputTrigger/MultiToothNoneMissing (5 evenly positioned crankpulse and 1 campulse).

* 15-1 style missing tooth crankwheel was also successfully used, but 5 evenly positioned crankpulse is simpler. With 5*72 degree crankwheel the camHALL chosen edge must clear the crankpulse even with the worst case of cambelt sloppiness (ideally midway between the neighbor crankpulses, 36 degrees from neighbors).

* With 15-1 wheel just make sure campulse stays away from the tooth after the missing cranktooth.

If the factory wheel is in good condition, no modification is justified. Since 2010, with proper configuration VEMS v3 firmware supports >10000 RPM with the factory trigger system.

Changed:
* InputTrigger/AudiTrigger/OtherToothWheel - less common 130, 136, 132 ... tooth crankwheels in other engines
* InputTrigger/AudiTrigger/OtherToothWheel - less common 130, 136, 132, 129, 162 ... tooth crankwheels in other engines

** some Porsche used [MembersPage/PeterJensenPorsche 130], some 132, some [ MembersPage/KevinBlack/PorscheTurbo 129], some Volvo 142 ... other toothcounts are possible and should be possible to set up