Anybody ever pulled EGT numbers on a current tune?

335e92tx · 05-22-2009, 04:23 PM

Anybody ever pulled EGT numbers on a current tune?

All post turbine I suppose is the only option.

Panoz · 05-22-2009, 04:32 PM

interesting question...

335e92tx · 05-22-2009, 04:38 PM

Yeah, I should have thought of it sooner - im slipping.

We really need pretun and post
Also with some aftermarket DPs.

kptaylor · 05-23-2009, 08:55 AM

Believe you have to install an EGT sensor to get this.

335e92tx · 05-24-2009, 10:55 PM

Well, your right, but thermocouples are pretty cheap now. I figured with all the techies here someone would have mounted one by now.

Sniz · 05-25-2009, 09:36 AM

not that I know of, but it is a great idea.

I wonder if the tuners have even monitored them, I hope so for everyone's sake.

does the factory ECU somehow monitor these or use some fancy caluculation to estimate them?

GreenPlease · 05-25-2009, 11:21 AM

If I recall, one of Shiv's first posts on this board alluded to the stock tune being fairly lean and that egts were fairly high and that running the engine rich cooled things down. Frankly this makes no sense to me from a thermodynamic standpoint as more power through the same space should result in higher egts.

Larger diameter DPs should lower egts over stock DPs for the same tune.

335e92tx · 05-25-2009, 12:04 PM

I imagine the DI will raise temps a little. I figure anything in the 1200-1250 range should be good.

It is possible to get lower EGTs with more fuel, but it usually takes timing changes also. If the timing is really retarded, some fuel burn could still be occurring at exhaust valve opening. I think that would be observed on a thermocouple that was ahead of the scroll but not post.

05-22-2009, 04:23 PM	#1
335e92tx ahat 1036 Rep 2,592 Posts Drives: Was '07-335e92 - Now '13-335IS Join Date: Mar 2008 Location: Texas iTrader: (6)	Anybody ever pulled EGT numbers on a current tune? Anybody ever pulled EGT numbers on a current tune? All post turbine I suppose is the only option. __________________ '13 335IS N54 (1 of 373 LeMans Blue out of 3597 total production e92)- Grey interior (1 of 24 in LMB with any trans- 1 of 14 with DCT)-MODS -MFactory LSD/MHD-BQ custom Tune/ATM-IC/AFE Momentum GT Intake/Konis/Mfront&HeimJoint Rear rods&arms/Brembos. https://photos.app.goo.gl/Lo6aHZRo7XqtPkhL8
	Appreciate 0 Tweet Quote

05-22-2009, 04:32 PM	#2
Panoz Lieutenant Colonel 84 Rep 1,575 Posts Drives: E92 Space Grey 335i ,Aero Kit Join Date: Nov 2006 Location: EU iTrader: (0)	interesting question... __________________ Procede V4 , Catless DPs, Forge FMIC, Injen Intake, VK Oilcooler, Hartge Quads Exhaust, Modded CDV, Synapse BOV Kit, BMW Performance 335i SSK Kit, P3 vent boost gauge Space Grey 335i -> See more pics HERE
	Appreciate 0 Quote

05-22-2009, 04:38 PM	#3
335e92tx ahat 1036 Rep 2,592 Posts Drives: Was '07-335e92 - Now '13-335IS Join Date: Mar 2008 Location: Texas iTrader: (6)	Yeah, I should have thought of it sooner - im slipping. We really need pretun and post Also with some aftermarket DPs. __________________ '13 335IS N54 (1 of 373 LeMans Blue out of 3597 total production e92)- Grey interior (1 of 24 in LMB with any trans- 1 of 14 with DCT)-MODS -MFactory LSD/MHD-BQ custom Tune/ATM-IC/AFE Momentum GT Intake/Konis/Mfront&HeimJoint Rear rods&arms/Brembos. https://photos.app.goo.gl/Lo6aHZRo7XqtPkhL8
	Appreciate 0 Quote

05-23-2009, 08:55 AM	#4
kptaylor First Lieutenant 6 Rep 322 Posts Drives: '07 335i Coupe Join Date: Mar 2007 Location: PHX, AZ iTrader: (0)	Believe you have to install an EGT sensor to get this.
	Appreciate 0 Quote

05-24-2009, 10:55 PM	#5
335e92tx ahat 1036 Rep 2,592 Posts Drives: Was '07-335e92 - Now '13-335IS Join Date: Mar 2008 Location: Texas iTrader: (6)	Well, your right, but thermocouples are pretty cheap now. I figured with all the techies here someone would have mounted one by now. __________________ '13 335IS N54 (1 of 373 LeMans Blue out of 3597 total production e92)- Grey interior (1 of 24 in LMB with any trans- 1 of 14 with DCT)-MODS -MFactory LSD/MHD-BQ custom Tune/ATM-IC/AFE Momentum GT Intake/Konis/Mfront&HeimJoint Rear rods&arms/Brembos. https://photos.app.goo.gl/Lo6aHZRo7XqtPkhL8
	Appreciate 0 Quote

05-25-2009, 09:36 AM	#6
Sniz Lieutenant General 654 Rep 10,587 Posts Drives: e92 335 - gone // e36 M3 turbo Join Date: Mar 2007 Location: Ellicott City, MD iTrader: (1)	not that I know of, but it is a great idea. I wonder if the tuners have even monitored them, I hope so for everyone's sake. does the factory ECU somehow monitor these or use some fancy caluculation to estimate them? __________________
	Appreciate 0 Quote

05-25-2009, 11:21 AM	#7
GreenPlease Lieutenant Colonel 129 Rep 1,629 Posts Drives: BMW 335i e92 Join Date: Feb 2008 Location: Orlando Florida iTrader: (2)	If I recall, one of Shiv's first posts on this board alluded to the stock tune being fairly lean and that egts were fairly high and that running the engine rich cooled things down. Frankly this makes no sense to me from a thermodynamic standpoint as more power through the same space should result in higher egts. Larger diameter DPs should lower egts over stock DPs for the same tune.
	Appreciate 0 Quote

05-25-2009, 12:04 PM	#8
335e92tx ahat 1036 Rep 2,592 Posts Drives: Was '07-335e92 - Now '13-335IS Join Date: Mar 2008 Location: Texas iTrader: (6)	I imagine the DI will raise temps a little. I figure anything in the 1200-1250 range should be good. It is possible to get lower EGTs with more fuel, but it usually takes timing changes also. If the timing is really retarded, some fuel burn could still be occurring at exhaust valve opening. I think that would be observed on a thermocouple that was ahead of the scroll but not post. __________________ '13 335IS N54 (1 of 373 LeMans Blue out of 3597 total production e92)- Grey interior (1 of 24 in LMB with any trans- 1 of 14 with DCT)-MODS -MFactory LSD/MHD-BQ custom Tune/ATM-IC/AFE Momentum GT Intake/Konis/Mfront&HeimJoint Rear rods&arms/Brembos. https://photos.app.goo.gl/Lo6aHZRo7XqtPkhL8
	Appreciate 0 Quote