E90/92/93 M3 Eisenmann exhaust Dyno Update!

IND-Distribution · 03-10-2009, 05:23 PM

As many of you know, we recently visited Fall Line Motorsports to dyno our Eisenmann Race exhaust system for the E92 M3. It took a bit of time to get the dyno data together, as Fall Line is in the middle of a very busy race season, but I was finally able to prepare some final information on the Eisenmann Race dyno runs.

http://www.bmwblog.com/2009/02/19/ei...2-m3-dyno-day/

I'd like to be as transparent as possible with regards to our methods of testing, so I've prepared an explanation of our procedures. I've averaged the Eisenmann test runs, to produce a more realistic number. I was not able to get more than one stock exhaust test run from Fall Line, and was therefore not able to average the stock exhaust runs. I've plotted the Eisenmann test averages against the stock test run, to produce a graph of the data. I've also included the relevant test and setting data below, and can provide the data tables of each individual run upon request, to show each individual data point.

Ambient Temperature: 72 degrees Fahrenheit
Barometric Pressure: 29.1 inHG
Relative Humidity: 22%
Correction Factor: 1.008%

Both the stock test runs and the Eisenmann test runs were done back to back, on the same morning and afternoon, on the same otherwise completely stock E92 M3, under the same conditions.

In our testing, we saw a gain of 16hp, and 11lb-ft of torque.

Dyno video-
[u2b]PnY5Lk28Vj0&feature=channel_page[/u2b]

GTM · 03-10-2009, 06:02 PM

Whoohooo!! that's SWEEET!

naveenb · 03-11-2009, 05:18 AM

the sound is niiiiiiiiiiccccceee!!!

is this a cat back system? or just the muffler?

IND-Distribution · 03-16-2009, 08:33 PM

Eisenmann's system is an axle back section, with optional connecting pipes. That makes the power gains even more impressive, as you can still delete center resonators and cats.

BMWDEMON · 03-17-2009, 07:27 AM

Good stuff Ilia!

d_dot · 03-17-2009, 09:38 AM

how much?

cipher5 · 03-18-2009, 01:22 PM

That's awesome! Thanks for the info Ilia.

03-10-2009, 05:23 PM	#1
IND-Distribution BimmerPost Supporting Vendor 10123 Rep 11,111 Posts Drives: G82 / G87 / G90 Join Date: Oct 2006 Location: Chicago iTrader: (3)	E90/92/93 M3 Eisenmann exhaust Dyno Update! As many of you know, we recently visited Fall Line Motorsports to dyno our Eisenmann Race exhaust system for the E92 M3. It took a bit of time to get the dyno data together, as Fall Line is in the middle of a very busy race season, but I was finally able to prepare some final information on the Eisenmann Race dyno runs. http://www.bmwblog.com/2009/02/19/ei...2-m3-dyno-day/ I'd like to be as transparent as possible with regards to our methods of testing, so I've prepared an explanation of our procedures. I've averaged the Eisenmann test runs, to produce a more realistic number. I was not able to get more than one stock exhaust test run from Fall Line, and was therefore not able to average the stock exhaust runs. I've plotted the Eisenmann test averages against the stock test run, to produce a graph of the data. I've also included the relevant test and setting data below, and can provide the data tables of each individual run upon request, to show each individual data point. Ambient Temperature: 72 degrees Fahrenheit Barometric Pressure: 29.1 inHG Relative Humidity: 22% Correction Factor: 1.008% Both the stock test runs and the Eisenmann test runs were done back to back, on the same morning and afternoon, on the same otherwise completely stock E92 M3, under the same conditions. In our testing, we saw a gain of 16hp, and 11lb-ft of torque. Dyno video- [u2b]PnY5Lk28Vj0&feature=channel_page[/u2b]
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03-10-2009, 06:02 PM	#2
GTM 70 Rep 1,034 Posts Drives: E92 M3 Join Date: Aug 2008 Location: Crystal Lake, IL iTrader: (2)	Whoohooo!! that's SWEEET!
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03-11-2009, 05:18 AM	#3
naveenb Private First Class 13 Rep 114 Posts Drives: nothing yet... Join Date: Jan 2009 Location: cali...ftw! iTrader: (0)	the sound is niiiiiiiiiiccccceee!!!is this a cat back system? or just the muffler? __________________ Naveen WANTED: Audi S4<Audi S5<BMW M3 sedan<Audi RS5
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03-16-2009, 08:33 PM	#4
IND-Distribution BimmerPost Supporting Vendor 10123 Rep 11,111 Posts Drives: G82 / G87 / G90 Join Date: Oct 2006 Location: Chicago iTrader: (3)	Eisenmann's system is an axle back section, with optional connecting pipes. That makes the power gains even more impressive, as you can still delete center resonators and cats.
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03-17-2009, 07:27 AM	#5
BMWDEMON Super modder 108 Rep 1,972 Posts Drives: E90 M3 & E46 M3 Join Date: May 2008 Location: Annapolis, MD iTrader: (1)	Good stuff Ilia! __________________ SOLD - 2005 E46 M3 ZCP - I/B on black CURRENT - 2011 E90 M3 - meticulously modified 2015 X1 Xdrive 28i
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03-17-2009, 09:38 AM	#6
d_dot 4 * General 59 Rep 644 Posts Drives: F12 M6,Audi R8 Lambo Gallardo Join Date: Dec 2007 Location: Tri-State iTrader: (0)	how much? __________________ Nissan GT-R (Sold) E92 M3 + 335 (sold) F10 535 (sold) When Driving Nice Whips It Helps To Have Nice Kix!
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03-18-2009, 01:22 PM	#7
cipher5 564 Rep 3,472 Posts Drives: 2020 Donington Grey X3M Comp Join Date: Jul 2007 Location: Chicago, IL iTrader: (12)	That's awesome! Thanks for the info Ilia.
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