Sorry for the large plot. I will resize next time!
Richard, I found, after looking at a lot of different data logs of different people (same model car) that our engines do not seem to have the most knock during the max torque power band. This can be due to ECU been properly programmed and ignition timing been equally aggressive allowing only ?minor knock? thru out whole RPM range.
Setting timing to more aggressive setting will indicate knock thru out whole RPM range unless better fuel used. It looks like ECU drives engines accurately right on the maximum timing all the time and rellies on knock sensor to stay tuned. There are only minor indications of increased CF (correction Factor) during max torque. Max torque on the stock engine is in the range 2500-3500RPM.
As you suggested my next step would be to data log ?sensor noise? I will drive the motor thru whole RPM range with only 5-10% load. Then we will compare ?background noise? graph with ?full load? graph.
It looks like on 2001-2006 model AUDI engines to have WI properly operating you need to inject water thru whole RPM range if your timing set to more aggressive tune.
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