MembersPage/KevinBlack/PorscheTurbo (2012-01-05 09:16:04)

Porsche 911 Turbo 6 cylinder engine, engine unknown but had the Motronic from the 3.2 engine running before vems install.

The engine is similar to MembersPage/MacB


Update: Sec trigger enabled, now there is primary and sec trig in triggerlog, but No RPM or Spark.


second trigger signals overlapping, try to shift camtrigger a little or change rising to falling for sec trigger.

Triggerlog:

Triggerlog%20No%20Spark.jpg

VemsLog:

http://www.vems.hu/files/KevinBlack/No%20RPM%20Log%20v3.3_u004215-2011.12.24-17.55.46.vemslog

You have no 6 virtual teeth between "cam" signal [in similarity as we have for audi where every second TDC signal is cancelled by Hall]. So try with 3.

may be 1.1.97 work with no divider? GintsK


Trigger setup:

Flywheel tooth and flywheel pin triggering, flywheel is 129+1.


ECU Info:

ECU#4215 vr/vr trigger(auditrigger non camhall)

Tlywheel Tooth Trigger to EC36-27

Flywheel Pin Trigger to EC18-12


Here's link to 911 Workshop Manual, years 1984-1989: http://www.cannell.co.uk/911_72-89_Workshop_Manuals/84-89%20Workshop%20Manual.pdf

Maybe there's some info on 911 Turbo as well.(MembersPage/PeepPaadam)


The engine actually ran for about 45 seconds (without sectrig enabled), it was just luck that it happened to fire correctly on that attempt.

Secondary Trigger:


We also tested with no divider (tooth width=2.75 deg): it worked, but peak-RPM would likely be limited.

We also tested with divby3, emil or pacsa will upload config and link here.

This special case of auditrigger worked on bench, including the per-cyl delay, but only after tricking "divier-off, than "divider-on" (so we're working on initialization change, needed so it syncronizes without this trick, currently stuck in tooth_cnt=FF and wouldn't spark without this hack).

Likely this will be the recommended setup). Per-cyl ignition delay is needed (because 43/3 != 14)