GIAC Stage 2 Log with stock FMIC and drop-in filter

tscdennab · 12-06-2010, 05:19 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).

enrita · 12-06-2010, 05:54 AM

Do logs when the Aftermarket IC is on. Stage 2 is tuned for that. Also you should run the best available gas like 93 or 94.
Seems the ecu is pulling some timings , no concerns about it just relog when the ic is on.

techlogik · 12-06-2010, 07:28 PM

You should really be running a full exhaust, dps, intake and fmic per GIAC Stage 2 requirements. Who knows what will happen with that setup.

scalbert · 12-06-2010, 07:32 PM

Knock, knock

PandaBear · 12-06-2010, 07:34 PM

what is the expected hp/torque/quarter mile time with GIAC stage 2 (full bolt ons)

forza1976 · 12-06-2010, 07:38 PM

Looks pretty much like we'd expect on 91 octane. GIAC isn't immune to a few timing drop outs too.

themyst · 12-06-2010, 07:50 PM

Quote:

Originally Posted by PandaBear

what is the expected hp/torque/quarter mile time with GIAC stage 2 (full bolt ons)

I think mr.5 ran 11.8@118 at sac raceway (which is more like 115.5 with a prope working timing system).

tscdennab · 12-10-2010, 08:48 AM

Update: here is a recent graph after I finally filled the tank with 94 octane gas. I would say everything looks good

cn555ic · 12-10-2010, 09:00 AM

Looks so much better. Wow the addition of better gas and fmic got rid of those knock events! Guess it's 94 for you from now on, unless you get A meth setup

tscdennab · 12-10-2010, 09:03 AM

Quote:

Originally Posted by cn555ic

Looks so much better. Wow the addition of better gas and fmic got rid of those knock events! Guess it's 94 for you from now on, unless you get A meth setup

Yes, I will never run 91 again. I have no choice, it seems

However the 91 gas I used was from a crappy gas station in a distant town, maybe it was not the best quality. However, the 93+ should bring some peace of mind.

Alpina_B3_Lux · 12-10-2010, 09:42 AM

Just FYI:

A similar thing happened to me when I switched from my stage 2 race flash (beta version) to the stage 2 race flash (final version) a few weeks ago. I got massive timing pulls when doing WOT at around 4.200 rpm, car felt like it was having a hickup.

After sending some logs to GIAC they informed me that the final version of the stage 2 race flash is more aggressive than the beta version and can only be run with race fuel or meth. I've now tested it with meth and there's no problem - just traction problems due to current weather conditions...

Alpina_B3_Lux

techlogik · 12-10-2010, 01:30 PM

^ That makes sense since it is a "RACE" flash.

12-06-2010, 05:19 AM	#1
tscdennab Banned 156 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 05:41 AM..
	Appreciate 0 Tweet Quote

12-06-2010, 05:54 AM	#2
enrita Major General 161 Rep 7,377 Posts Drives: 335i - Big turbos Join Date: Sep 2008 Location: Italian in Sweden iTrader: (0)	Do logs when the Aftermarket IC is on. Stage 2 is tuned for that. Also you should run the best available gas like 93 or 94. Seems the ecu is pulling some timings , no concerns about it just relog when the ic is on. __________________ 07 335i AT - MOTIV 750 - MHD E85 BMS flash - BMS PI - JB4G5 - Okada Coils - NGK 5992 Plugs - Helix IC - Snow Stg. 3 - Stett CP - Custom midpipes with 100 HJS Cats - Bastuck Quad - PSS10 - QUAIFE LSD - BMS OCC - Forge DVs - AR OC - ALCON BBK - M3 Chassi - Dinan CP - Velocity M rear Toe arms - Advan RZ-DF - LUX H8 - Level 10 AT upgrade
	Appreciate 0 Quote

12-06-2010, 07:28 PM	#3
techlogik Lieutenant Colonel 71 Rep 1,568 Posts Drives: 2020 M340i Dravit Grey Join Date: Dec 2006 Location: FL iTrader: (2)	You should really be running a full exhaust, dps, intake and fmic per GIAC Stage 2 requirements. Who knows what will happen with that setup. __________________ 2020 M340i: Dravit Grey Mettalic. Loaded.
	Appreciate 0 Quote

12-06-2010, 07:32 PM	#4
scalbert Major General 158 Rep 5,776 Posts Drives: '13 S4, '15 Q7 Join Date: Feb 2007 Location: Woodstock, GA iTrader: (8)	Knock, knock
	Appreciate 0 Quote

12-06-2010, 07:34 PM	#5
PandaBear Banned 188 Rep 7,269 Posts Drives: 2009 335i X-Drive Join Date: Sep 2009 Location: Long Island, New York iTrader: (1) Garage List 2009 335i X-Drive [0.00] 2007 328xi [0.00]	what is the expected hp/torque/quarter mile time with GIAC stage 2 (full bolt ons)
	Appreciate 0 Quote

12-06-2010, 07:38 PM	#6
forza1976 Major General 3514 Rep 6,627 Posts Drives: BMW Join Date: Aug 2007 Location: 49456 iTrader: (13) Garage List 2022 BMW M3X [9.50]	Looks pretty much like we'd expect on 91 octane. GIAC isn't immune to a few timing drop outs too.
	Appreciate 0 Quote

12-10-2010, 08:48 AM	#8
tscdennab Banned 156 Rep 1,809 Posts Drives: BMW 335i Join Date: Oct 2010 Location: Europe iTrader: (0) Garage List 2008 BMW [6.24]	Update: here is a recent graph after I finally filled the tank with 94 octane gas. I would say everything looks good Attached Images
	Appreciate 0 Quote

12-10-2010, 09:00 AM	#9
cn555ic 462 Rep 18,331 Posts Drives: 335i Join Date: Jun 2007 Location: US iTrader: (6)	Looks so much better. Wow the addition of better gas and fmic got rid of those knock events! Guess it's 94 for you from now on, unless you get A meth setup
	Appreciate 0 Quote

12-10-2010, 09:42 AM	#11
Alpina_B3_Lux Colonel 267 Rep 2,563 Posts Drives: Audi R8 LMX, BMW M550i xDrive Join Date: Feb 2008 Location: Germany iTrader: (0) Garage List 2009 335i [8.90]	Just FYI: A similar thing happened to me when I switched from my stage 2 race flash (beta version) to the stage 2 race flash (final version) a few weeks ago. I got massive timing pulls when doing WOT at around 4.200 rpm, car felt like it was having a hickup. After sending some logs to GIAC they informed me that the final version of the stage 2 race flash is more aggressive than the beta version and can only be run with race fuel or meth. I've now tested it with meth and there's no problem - just traction problems due to current weather conditions... Alpina_B3_Lux __________________ Audi R8 LMX, BMW M550i xDrive (G30 LCI); gone: Alpina B3 3,3 (E46), BMW 335i, Audi R8 V10 manual, Audi R8 V10, BMW M235i, BMW 550i F10
	Appreciate 0 Quote

12-10-2010, 01:30 PM	#12
techlogik Lieutenant Colonel 71 Rep 1,568 Posts Drives: 2020 M340i Dravit Grey Join Date: Dec 2006 Location: FL iTrader: (2)	^ That makes sense since it is a "RACE" flash. __________________ 2020 M340i: Dravit Grey Mettalic. Loaded.
	Appreciate 0 Quote