2014 M235i Dyno 18k miles 3/22/15

rich8566 · 03-21-2015, 08:18 PM

Three dyno pulls today. Best of three HP= 351 Torque= 359

davefromfla · 03-21-2015, 08:22 PM

Is that stock?

Alpine F31 · 03-21-2015, 08:24 PM

Quote:

Originally Posted by 235-dmc

Is that stock?

My question as well. Details please!

rich8566 · 03-21-2015, 08:28 PM

Quote:

Originally Posted by 235-dmc

Is that stock?

Stock

CONTROL ONE · 03-21-2015, 08:32 PM

50hp discrepancy between 3 runs on a stock car? What kind of fisher price dyno is this?

kd0t · 03-21-2015, 08:41 PM

Quote:

Originally Posted by CONTROL ONE

50hp discrepancy between 3 runs on a stock car? What kind of fisher price dyno is this?

:

Sindarin · 03-21-2015, 08:47 PM

Why did the correction factor change from 1.0 in the first run to 1.15 in the 'best' run? This would explain the 50hp gain.

Alpine F31 · 03-21-2015, 09:00 PM

I noticed a 20 degree temperature difference between runs 2 and 3 but I figured that was a mistake.

rich8566 · 03-21-2015, 09:06 PM

Quote:

Originally Posted by Alpine F31

I noticed a 20 degree temperature difference between runs 2 and 3 but I figured that was a mistake.

Air temp outside the garage was 48 degrees. Not sure why the other runs showed higher temps.

rich8566 · 03-21-2015, 09:08 PM

Quote:

Originally Posted by rich8566

Three dyno pulls today. Best of three HP= 351 Torque= 359

Tech said there was an air/fuel aberration during one of the runs that "self" corrected? Never did dyno runs before - are dynos all hocus pocus BS?

Alpine F31 · 03-21-2015, 09:11 PM

Quote:

Originally Posted by rich8566

Air temp outside the garage was 48 degrees. Not sure why the other runs showed higher temps.

Got it. Impressive results anyway you look at it. It's been widely speculated that BMW underrates their engines. I know dyno results will vary quite a bit depending on a lot of factors including the brand of the dyno.

qballis · 03-21-2015, 09:13 PM

http://www.2addicts.com/forums/showthread.php?t=1053347

ocN55 · 03-21-2015, 09:43 PM

That's one high reading dyno

335BOY · 03-21-2015, 10:06 PM

Virtually EVERY manufacturer under rates hp. Not sure why.

335BOY · 03-21-2015, 10:08 PM

Quote:

Originally Posted by rich8566

Tech said there was an air/fuel aberration during one of the runs that "self" corrected? Never did dyno runs before - are dynos all hocus pocus BS?

With 50hp difference, that was a waste of time. Which one was right?

ocN55 · 03-21-2015, 11:22 PM

Quote:

Originally Posted by rich8566

Never did dyno runs before - are dynos all hocus pocus BS?

Not entirely, they have a lot of value in tuning. Could be use to see the shape of your torque band and compare runs to your baseline. But in my opinion, peak hp and tq are just numbers at the end of the day and the better indication of which car is faster is on a quarter mile. There are too many factors that could skew the dyno numbers.
Also from what I understand dynos could be calibrated to read high or low, you could theoretically have you're car make 1000hp on a horribly calibrated dyno.

Anderw · 03-22-2015, 02:13 AM

Thanks for sharing!

configt · 03-22-2015, 02:57 AM

Quote:

Originally Posted by CONTROL ONE

50hp discrepancy between 3 runs on a stock car? What kind of fisher price dyno is this?

LMFAO this made me laugh so hard.

Zooks527 · 03-22-2015, 07:14 AM

Quote:

Originally Posted by 335BOY

Virtually EVERY manufacturer under rates hp. Not sure why.

Back in the day, you would occasionally see underrates to get below insurance, race organizer, or government trigger points.

Nowadays? Who knows? Maybe they're afraid someone will sue them if they come up 1 HP low on a dyno test after someone spends $50k on the car.

dtcoff · 03-22-2015, 04:55 PM

The marketing people decide what HP they want to have as the official number. This way they make it more than the lower models and ensure a gap to the M3 and allow space for M2 to fit in. The only ones they don't underrate is the M5/6 I guess.

jskrilla · 03-23-2015, 08:33 AM

Wow...I'm impressed

gaijin · 03-23-2015, 09:53 AM

Thanks for sharing. Impressive!

03-21-2015, 08:18 PM	#1
rich8566 Major 609 Rep 1,124 Posts Drives: M2 + Z-4 Join Date: Sep 2007 Location: FL iTrader: (0) Garage List 2014 BMW M235i [0.00]	Three dyno pulls today. Best of three HP= 351 Torque= 359 Attached Images __________________ Current: 2017 ///M2 manual 2004 E85 Z-4 manual
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03-21-2015, 08:22 PM	#2
davefromfla First Lieutenant 114 Rep 354 Posts Drives: 2021 M440ix Join Date: Nov 2010 Location: Florida iTrader: (0)	Is that stock?
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03-21-2015, 08:32 PM	#5
CONTROL ONE Second Lieutenant 70 Rep 210 Posts Drives: 2014 BMW M235i Join Date: Mar 2014 Location: Toronto, Canada iTrader: (0)	50hp discrepancy between 3 runs on a stock car? What kind of fisher price dyno is this?
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03-21-2015, 08:47 PM	#7
Sindarin Private First Class 39 Rep 106 Posts Drives: BMW Join Date: Jul 2012 Location: USA iTrader: (0)	Why did the correction factor change from 1.0 in the first run to 1.15 in the 'best' run? This would explain the 50hp gain.
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03-21-2015, 09:00 PM	#8
Alpine F31 Colonel 919 Rep 2,710 Posts Drives: MB E350 4MATIC Estate Join Date: Feb 2012 Location: Sherman Oaks, CA iTrader: (1) Garage List 2014 Jeep Grand Che ... [0.00] 2015 BMW M235i (sold) [0.00] 2013 BMW 328i (sold) [10.00]	I noticed a 20 degree temperature difference between runs 2 and 3 but I figured that was a mistake.
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03-21-2015, 09:13 PM	#12
qballis Lieutenant 270 Rep 513 Posts Drives: G80 Comp xdrive Join Date: Apr 2014 Location: Phoenix, AZ iTrader: (0)	http://www.2addicts.com/forums/showthread.php?t=1053347
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03-21-2015, 09:43 PM	#13
ocN55 Lieutenant Colonel 560 Rep 1,503 Posts Drives: '15 M235i 6MT/ '16 M3 Join Date: Dec 2013 Location: LA iTrader: (18)	That's one high reading dyno
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03-21-2015, 10:06 PM	#14
335BOY Colonel 197 Rep 2,802 Posts Drives: 2017 SQ5 Join Date: Jan 2013 Location: Toronto iTrader: (0)	Virtually EVERY manufacturer under rates hp. Not sure why.
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03-22-2015, 02:13 AM	#17
Anderw Brigadier General 659 Rep 3,320 Posts Drives: F80 m3 Join Date: Feb 2012 Location: FL iTrader: (12)	Thanks for sharing!
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03-22-2015, 04:55 PM	#20
dtcoff First Lieutenant 49 Rep 374 Posts Drives: 2014 F22 M235i Join Date: Feb 2011 Location: Sydney iTrader: (0)	The marketing people decide what HP they want to have as the official number. This way they make it more than the lower models and ensure a gap to the M3 and allow space for M2 to fit in. The only ones they don't underrate is the M5/6 I guess. __________________ 2014 M235i / EB-II / Coral / Sunroof / Comfort & Parking Packages 2014 X3 3.0d / M sport / AW / Sunroof
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03-23-2015, 08:33 AM	#21
jskrilla Second Lieutenant 71 Rep 266 Posts Drives: M235i Xdrive Join Date: Jul 2014 Location: New York iTrader: (0)	Wow...I'm impressed
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03-23-2015, 09:53 AM	#22
gaijin Mess Deck Commando 244 Rep 807 Posts Drives: F30 Join Date: Feb 2013 Location: Florida iTrader: (4)	Thanks for sharing. Impressive! __________________ ///Sursum Ab Ordine
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