Baseline Dyno

fsmtnbiker · 08-02-2013, 09:38 AM

I got my recently-acquired '09 M3 over to the dyno yesterday to get a baseline established.

Relevant info:

2009 M3 - 129k Miles
170E Software
Active Pulley
K&N Filter
Unknown Maint. History

After the dyno I ordered plugs, and I am going to update it to the latest 240E software. I'll try to get back over to the dyno before I do an X-pipe to see what those changes alone net. I expect the spark plugs will fix the high-rpm choppiness that is present in this graph. Overall, I'm pleased for the mileage and unknown history.

signes · 08-02-2013, 12:28 PM

Great numbers! Curious how much the pulley and filter are getting you over a true base.

MilehighM3 · 08-02-2013, 01:42 PM

Looking at the power curve I would say its time for plugs as well as possibly bad fuel.

signes · 08-02-2013, 01:53 PM

No smoothing on that plot.

fsmtnbiker · 08-02-2013, 02:26 PM

Yeah, I generally leave the smoothing at zero when I am looking for issues. It's much easier to see when you have an issue like this car obviously does.

fsmtnbiker · 08-02-2013, 02:30 PM

Quote:

Originally Posted by signes

Great numbers! Curious how much the pulley and filter are getting you over a true base.

I would guess not much. The pulley is sorta a pain to swap, otherwise I would switch it back. The air filter was filthy when I got the car and it was not much cost difference to get the K&N... And since this car has no MAF sensor I'm comfortable running an oiled filter.

08-02-2013, 09:38 AM	#1
fsmtnbiker First Lieutenant 620 Rep 327 Posts Drives: E92 M3, Evora S, E36 Join Date: Jul 2013 Location: Phoenix, AZ iTrader: (0)	Baseline Dyno I got my recently-acquired '09 M3 over to the dyno yesterday to get a baseline established. Relevant info: 2009 M3 - 129k Miles 170E Software Active Pulley K&N Filter Unknown Maint. History After the dyno I ordered plugs, and I am going to update it to the latest 240E software. I'll try to get back over to the dyno before I do an X-pipe to see what those changes alone net. I expect the spark plugs will fix the high-rpm choppiness that is present in this graph. Overall, I'm pleased for the mileage and unknown history. __________________ Chris Last edited by fsmtnbiker; 12-17-2013 at 09:30 AM..
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08-02-2013, 12:28 PM	#2
signes Brigadier General 199 Rep 4,318 Posts Drives: 991 GT3 RS Join Date: Sep 2008 Location: Living at (almost...) 9k iTrader: (5)	Great numbers! Curious how much the pulley and filter are getting you over a true base. __________________ GT3 RS \| Desperately seeking the next great M car...
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08-02-2013, 01:42 PM	#3
MilehighM3 Brigadier General 915 Rep 3,456 Posts Drives: Harrop E90 M3 Join Date: May 2011 Location: Colorado Springs iTrader: (14) Garage List 2009 E90 M3 [6.50]	Looking at the power curve I would say its time for plugs as well as possibly bad fuel.
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08-02-2013, 01:53 PM	#4
signes Brigadier General 199 Rep 4,318 Posts Drives: 991 GT3 RS Join Date: Sep 2008 Location: Living at (almost...) 9k iTrader: (5)	No smoothing on that plot. __________________ GT3 RS \| Desperately seeking the next great M car...
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08-02-2013, 02:26 PM	#5
fsmtnbiker First Lieutenant 620 Rep 327 Posts Drives: E92 M3, Evora S, E36 Join Date: Jul 2013 Location: Phoenix, AZ iTrader: (0)	Yeah, I generally leave the smoothing at zero when I am looking for issues. It's much easier to see when you have an issue like this car obviously does.
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