BMW Garage BMW Meets Register Search Today's Posts Mark Forums Read

Go Back   BMW M3 and BMW M4 Forum > BMW F80 M3 / F82 M4 Forum > M3/M4 versus...

Post Reply
 
Thread Tools Search this Thread
      07-09-2014, 01:21 PM   #1
JMN
New Member
 
Drives: 2015 BMW M3
Join Date: May 2014
Location: United States

Posts: 29
iTrader: (0)

F80 M3 vs E92 M3 Dyno Numbers by Motortrend

BIMMERPOST
     Featured on BIMMERPOST.com
On K&N's dyno, seems to read quite a bit lower than some others:

http://blogs.motortrend.com/1407_on_...eneration.html

Name:  bmw-m3-dyno-run-f80-vs-e90.jpg
Views: 25353
Size:  102.5 KB

Name:  bmw-m3-dyno-run-chart.jpg
Views: 24356
Size:  79.4 KB

Name:  bmw-m3-dyno-run.jpg
Views: 24294
Size:  85.5 KB
JMN is offline  
0
Reply With Quote
      07-09-2014, 01:24 PM   #2
kitw
Colonel
 
kitw's Avatar
 
Drives: 2015 MW M3/2014 Boxster S
Join Date: Jun 2007
Location: Bay Area, CA

Posts: 2,560
iTrader: (14)

All that matters is the relative difference.

The E90 on this dyno was way lower as well. (I also don't see enough fans, etc)
Attached Images
 
__________________

IMG_4631 by kitwetzler, on Flickr
kitw is offline  
0
Reply With Quote
      07-09-2014, 01:56 PM   #3
Hobbination
First Lieutenant
 
Hobbination's Avatar
 
Drives: 2015 M4
Join Date: Dec 2007
Location: Honolulu HI

Posts: 341
iTrader: (0)

Quote:
Originally Posted by kitw View Post
All that matters is the relative difference.

The E90 on this dyno was way lower as well. (I also don't see enough fans, etc)
That was the first thing I was thinking too, where are the fans? This is going to start another dyno convo, it would be so cool if there was one type of dyno, hermitically sealed in a room where all conditions were the same all the time. Were seeing ranges of 370 to the wheels up to 420 to the wheels. Whatevs. Cars still amazing
Hobbination is offline   United_States
0
Reply With Quote
      07-09-2014, 02:00 PM   #4
Buddy Revell
Private First Class
 
Drives: 2011 E92 M3, 2015 F82 M4
Join Date: Jan 2014
Location: Orange County, CA

Posts: 147
iTrader: (0)

Yeah, the relative difference is still huge. Way more than the 11 hp difference that's stated from the factory.
Buddy Revell is offline  
0
Reply With Quote
      07-09-2014, 02:00 PM   #5
stressdoc
Moderator
 
stressdoc's Avatar
 
Drives: F80 YMB
Join Date: Jun 2005
Location: MO

Posts: 10,135
iTrader: (0)

306 whp for an E9x M? That is a very low result, even in comparison with the F8x at 380. Maybe the F8x not broken in.
stressdoc is offline   Dominica
0
Reply With Quote
      07-09-2014, 02:01 PM   #6
consolidated
Lieutenant Colonel
 
consolidated's Avatar
 
Drives: F80 M3
Join Date: Jun 2007
Location: Texas

Posts: 1,687
iTrader: (1)

Garage List
So strange, 10hp apart per BMW, 70hp apart on this dyno.
consolidated is offline  
0
Reply With Quote
      07-09-2014, 02:04 PM   #7
Buddy Revell
Private First Class
 
Drives: 2011 E92 M3, 2015 F82 M4
Join Date: Jan 2014
Location: Orange County, CA

Posts: 147
iTrader: (0)

Damn the F8x makes more power at 4500rpm that the E9x makes at 8000.
Buddy Revell is offline  
0
Reply With Quote
      07-09-2014, 02:08 PM   #8
Never Convicted
Captain
 
Drives: 2010 M3 E92
Join Date: Dec 2012
Location: Charlotte NC

Posts: 682
iTrader: (0)

But how did it SOUND on the dyno? Let's keep our priorities straight.
Never Convicted is offline   United_States
+2
Reply With Quote
      07-09-2014, 02:09 PM   #9
ASAP
Big Money Waster
 
ASAP's Avatar
 
Drives: 2009 BMW 135i
Join Date: Sep 2012
Location: DMV

Posts: 1,352
iTrader: (0)

Quote:
Originally Posted by stressdoc View Post
306 whp for an E9x M? That is a very low result, even in comparison with the F8x at 380. Maybe the F8x not broken in.
The lowest S65 dyno that I have ever seen in my life that I could believe was 330 WHP... that would make the F80x at 406 WHP; far mooore believable but still on the lower end. This can't be a dynojet and if it is; what settings r they using?
__________________
2009 135i 6AT
E40 PTF Protune, AR Dp's, 5" ETS FMIC, BMS DCI, M3 RSFB's, Koni Yellow Shocks, Michelin PSS
ASAP is online now   No_Country
0
Reply With Quote
      07-09-2014, 02:10 PM   #10
Buddy Revell
Private First Class
 
Drives: 2011 E92 M3, 2015 F82 M4
Join Date: Jan 2014
Location: Orange County, CA

Posts: 147
iTrader: (0)

I wonder what tuners will do to get the top end power on the F8x to the next level.
Buddy Revell is offline  
0
Reply With Quote
      07-09-2014, 02:11 PM   #11
kitw
Colonel
 
kitw's Avatar
 
Drives: 2015 MW M3/2014 Boxster S
Join Date: Jun 2007
Location: Bay Area, CA

Posts: 2,560
iTrader: (14)

You can get any numbers you want to out of a dyno jet.
__________________

IMG_4631 by kitwetzler, on Flickr
kitw is offline  
0
Reply With Quote
      07-09-2014, 02:11 PM   #12
BoostedTerp
First Lieutenant
 
Drives: '15 M3
Join Date: Jun 2009
Location: Arlington, VA

Posts: 302
iTrader: (0)

Seems like a very low reading dyno, but having them both there provides a nice point of reference for the real horsepower difference between the two cars.
__________________
'15 Black Sapphire M3
BoostedTerp is offline  
0
Reply With Quote
      07-09-2014, 02:16 PM   #13
JoeFromPA
Major
 
Drives: '15 AW M3 6MT Stripper
Join Date: Aug 2013
Location: SE PA

Posts: 1,305
iTrader: (0)

The absolute numbers matter little. Assuming they didn't mess with settings between the two dynos, that's an unreal difference in power.
JoeFromPA is offline  
0
Reply With Quote
      07-09-2014, 02:18 PM   #14
MKE_M3
Lieutenant Colonel
 
MKE_M3's Avatar
 
Drives: 2011 e90 M3
Join Date: Feb 2009
Location: Milwaukee, WI

Posts: 1,679
iTrader: (0)

I'm definitely not an expert, but...

1) Assume E9X makes 414 HP at the flywheel
2) Assume proportionate drivetrain/dyno loss

Loss = 1 - (306/414) = 26%
F8X HP at the flywheel = 379/( 1 - Loss ) = 379/.74 = 513 HP

Obviously I'm making some assumptions and 513 BHP seems ludicrously high, but WOW!
__________________
MKE_M3 is offline   United_States
0
Reply With Quote
      07-09-2014, 02:18 PM   #15
consolidated
Lieutenant Colonel
 
consolidated's Avatar
 
Drives: F80 M3
Join Date: Jun 2007
Location: Texas

Posts: 1,687
iTrader: (1)

Garage List
Quote:
Originally Posted by Never Convicted View Post
But how did it SOUND on the dyno? Let's keep our priorities straight.
consolidated is offline  
0
Reply With Quote
      07-09-2014, 02:23 PM   #16
KennyPowers
Brigadier General
 
Drives: .....
Join Date: Oct 2010
Location: Gulf Coast

Posts: 4,308
iTrader: (13)

Quote:
Originally Posted by ASAP View Post
The lowest S65 dyno that I have ever seen in my life that I could believe was 330 WHP... that would make the F80x at 406 WHP; far mooore believable but still on the lower end. This can't be a dynojet and if it is; what settings r they using?
that's what my e9x dyno'd at. 332 whp stock

and I would say the apparent lack of fans

you can also see how both cars struggle badly at redline compared to every other dyno I have seen. this is likely due to lack of proper airflow. both cars seem to be down about 10-12% power
__________________
PCD 10/10 on 2015 M3 : MW / SB Full Leather / HK audio / Adaptive Suspension / Silver 19s / 6MT / CF Roof
KennyPowers is online now  
0
Reply With Quote
      07-09-2014, 02:24 PM   #17
VCP
Captain
 
VCP's Avatar
 
Drives: F82 Sakhir / E92 Dakar
Join Date: Mar 2011
Location: Canada

Posts: 608
iTrader: (0)

This will take some magic. 1024 bit and this motor turns into a NA type monster over 6k rpm. Valvetronic magician required



Quote:
Originally Posted by Buddy Revell View Post
I wonder what tuners will do to get the top end power on the F8x to the next level.
VCP is offline   Canada
0
Reply With Quote
      07-09-2014, 03:08 PM   #18
jc05e46m3
Colonel
 
Drives: '15 YMB/SO M4
Join Date: Mar 2011
Location: SoCal

Posts: 2,179
iTrader: (1)

Quote:
Originally Posted by Never Convicted View Post
But how did it SOUND on the dyno? Let's keep our priorities straight.
hahahahahahahahahahahahahahahaha, classic.
__________________
'15 /// M4 - YMB/SO
'12 E92 ///M3 ZCP - AW/FR - Sold
'05 E46 ///M3 - TiAg/IR- Sold
jc05e46m3 is offline  
0
Reply With Quote
      07-09-2014, 03:25 PM   #19
solstice
Colonel
 
Drives: 2015 M3 6MT
Join Date: May 2013
Location: Seattle

Posts: 2,349
iTrader: (0)

70hp over the E92 M3. That is freakish underrating. Now, let's just hope BMW don't cut that down to the ankles soon by a SW "update"...
solstice is online now  
0
Reply With Quote
      07-09-2014, 03:26 PM   #20
tdizzle
Lieutenant Colonel
 
Drives: 2012 335i Sport
Join Date: Aug 2012
Location: Memphis

Posts: 1,768
iTrader: (0)

Quote:
Originally Posted by Buddy Revell View Post
I wonder what tuners will do to get the top end power on the F8x to the next level.
Tricks with the boost. The BMS folks have apparently already hit 500whp with a dose of E85 tune only.
tdizzle is offline   United_States
0
Reply With Quote
      07-09-2014, 03:44 PM   #21
JoeFromPA
Major
 
Drives: '15 AW M3 6MT Stripper
Join Date: Aug 2013
Location: SE PA

Posts: 1,305
iTrader: (0)

Quote:
Originally Posted by tdizzle View Post
Tricks with the boost. The BMS folks have apparently already hit 500whp with a dose of E85 tune only.
They are using E30, not E85. Pretty big difference.
JoeFromPA is offline  
0
Reply With Quote
      07-09-2014, 03:46 PM   #22
JoeFromPA
Major
 
Drives: '15 AW M3 6MT Stripper
Join Date: Aug 2013
Location: SE PA

Posts: 1,305
iTrader: (0)

Hmm, I'd like to understand more about the airflow restrictions (potential) or cooling restrictions.

NORMALLY an N/A motor is going to give a better dyno as IATs spike - i.e. a turbocharged motor is going to suffer more due to temp than an N/A motor.

Nonetheless, I'd like to understand if there were airflow restrictions here...
JoeFromPA is offline  
0
Reply With Quote
Post Reply

Bookmarks

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump


All times are GMT -5. The time now is 05:53 PM.




f80post
Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
1Addicts.com, BIMMERPOST.com, E90Post.com, F30Post.com, M3Post.com, ZPost.com, 5Post.com, 6Post.com, 7Post.com, XBimmers.com logo and trademark are properties of BIMMERPOST