Recently we had a motor letting go out of the blue. There was absolutely no sign of it having any sort of issue, the engine was sounding well and the logs were showing everything was perfect.
The owner did not open the engine yet, it's going to be a bit expensive. The engine let go during a pull to produce a set of logs for what it was supposed to be the last revision of that tune.
GTX2867R gen2, Ultimate racing V3 catted DP and catted&resonated TP were installed one day earlier.
The detonation sound at second 12-13 in the following video clip corresponds to the beginning of the KR trail at line 73 in the attached log.
Did anyone have a motor fail suddenly without any sign, and smidge of knock, everything in check (load, boost, AFR)?
The only thing that worth mentioning is that this log was the first one after a 40-50 minutes break following the first logging session with a tune closer to stock values (300g/s of air, max load 2.05-2.1 in mid range). 3 people in the car including the driver, so around 6 seconds for 60-100mph sounds about right for the air flow and timing we see in the logs which indicate there was no significant compression drops or leak downs. Oil was fresh too, 200 miles on it, 0w40 ACEA A3/B4 (Millers).
The engine was running solely on pump gas, 95OCT/101RON with 8-10% Ethanol content (E10).
The owner did not open the engine yet, it's going to be a bit expensive. The engine let go during a pull to produce a set of logs for what it was supposed to be the last revision of that tune.
GTX2867R gen2, Ultimate racing V3 catted DP and catted&resonated TP were installed one day earlier.
The detonation sound at second 12-13 in the following video clip corresponds to the beginning of the KR trail at line 73 in the attached log.
Did anyone have a motor fail suddenly without any sign, and smidge of knock, everything in check (load, boost, AFR)?
The only thing that worth mentioning is that this log was the first one after a 40-50 minutes break following the first logging session with a tune closer to stock values (300g/s of air, max load 2.05-2.1 in mid range). 3 people in the car including the driver, so around 6 seconds for 60-100mph sounds about right for the air flow and timing we see in the logs which indicate there was no significant compression drops or leak downs. Oil was fresh too, 200 miles on it, 0w40 ACEA A3/B4 (Millers).
The engine was running solely on pump gas, 95OCT/101RON with 8-10% Ethanol content (E10).
