BMW 3-Series (E90 E92) Forum - View Single Post - GIAC Stage 2 Log with stock FMIC and drop-in filter

tscdennab · 12-06-2010, 04:19 AM

Hi,

Today I did some logging with my new GIAC S2 flash. I have the stock intercooler (I will install the new one tomorrow) and a drop-in Helene filter, plus catless downpipes and stock seconday cats. 91 octane gas. Ambient temperature was 3C (37F).

How does the timing look to you ? I am not sure about the timing drop I noticed on the log, could it be knock evidence ? (needless to say, no error code is registered on the ECU, checked with the BT tool). Also, is an IAT of 55C (131 degrees Fahrenheit) too high ? As you see from the graph, this timing pull also occurred at IAT of 40C (104 Fahrenheit).

I have attached the log. I have also attached a stock log (before GIAC S2) (the second picture).

12-06-2010, 04:19 AM	#1
tscdennab Banned 151 Rep 1,809 Posts Drives: BMW 335i Join Date: Oct 2010 Location: Europe iTrader: (0) Garage List 2008 BMW [6.24]	GIAC Stage 2 Log with stock FMIC and drop-in filter - knock evidence ? Hi, Today I did some logging with my new GIAC S2 flash. I have the stock intercooler (I will install the new one tomorrow) and a drop-in Helene filter, plus catless downpipes and stock seconday cats. 91 octane gas. Ambient temperature was 3C (37F). How does the timing look to you ? I am not sure about the timing drop I noticed on the log, could it be knock evidence ? (needless to say, no error code is registered on the ECU, checked with the BT tool). Also, is an IAT of 55C (131 degrees Fahrenheit) too high ? As you see from the graph, this timing pull also occurred at IAT of 40C (104 Fahrenheit). I have attached the log. I have also attached a stock log (before GIAC S2) (the second picture). Attached Images Last edited by tscdennab; 12-06-2010 at 04:41 AM..
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