E60 M5 Discussion The almighty M5. Have you seen one today?

M5 dyno day!!!!!!!!!!!!

Thread Tools
 
Search this Thread
 
Old 03-01-2006, 08:54 AM
  #11  
Contributors
 
my530i's Avatar
 
Join Date: Aug 2004
Location: SJC/CA/US
Posts: 4,979
Likes: 0
Received 1 Like on 1 Post
Default

That job make big bugs. $400/pop. He can do 10 in a day easily!
Old 03-01-2006, 09:15 AM
  #12  
Senior Members
 
0700700's Avatar
 
Join Date: Nov 2005
Location: sofia / london
Posts: 3,236
Likes: 0
Received 0 Likes on 0 Posts
Default

assuming a standard 15% loss at the flywheel they should be getting in excess of 440bhp ?
Old 03-01-2006, 09:25 AM
  #13  
Senior Members
 
Centurion's Avatar
 
Join Date: Feb 2005
Location: S. California
Posts: 1,968
Likes: 0
Received 0 Likes on 0 Posts
My Ride: 545i; Manual Shifter
Default

Thanks for sharing.

I remember the other thread that linked to an Indy Red M5 with the Eisenmann's. It was also loud on the dyno.

Edited to add:

Ooops, nevermind. It was actually a Supersprint exhaust. M5 Supersprint Exhaust
Old 03-01-2006, 09:28 AM
  #14  
Senior Members
 
Centurion's Avatar
 
Join Date: Feb 2005
Location: S. California
Posts: 1,968
Likes: 0
Received 0 Likes on 0 Posts
My Ride: 545i; Manual Shifter
Default

Originally Posted by 700700' post='247893' date='Mar 1 2006, 10:15 AM
assuming a standard 15% loss at the flywheel they should be getting in excess of 440bhp ?
Is 15% a sort of rule-of-thumb?
If so, these cars are dynoing (is that a word ) just slightly less than where they're suppose to.
Old 03-01-2006, 09:34 AM
  #15  
Senior Members
 
Centurion's Avatar
 
Join Date: Feb 2005
Location: S. California
Posts: 1,968
Likes: 0
Received 0 Likes on 0 Posts
My Ride: 545i; Manual Shifter
Default

Originally Posted by TV550' post='247615' date='Feb 28 2006, 08:40 PM
DMS was there also for research purposes studying the US ECU program for future upgrades. DMS sent a representative from the UK just for that weekend. He pulled out the ECU on one of the cars and mounted the thing on some futuristic holder and downloaded all the software then sent it to the UK to be analyzed. DMS guy named Darin was pretty cool and very knowledgeable, he said they have several in Europe running 545+ with their remap. Darin did not remap any cars on this visit because they want to study the US version of the ECU which he said is severely crippled and detuned compared to the rest of the world.
DMS has done an amazing job with non-US M5's.
I hope they can 'unleash' the US M5 motor and get similar results with the remap.
Old 03-01-2006, 09:49 AM
  #16  
Contributors
 
cobradav's Avatar
 
Join Date: Jun 2004
Location: FLA - East Coast, USA
Posts: 3,618
Likes: 0
Received 0 Likes on 0 Posts
My Ride: (USA) 645Ci, Silver Gray, Chateau, Cold Weather PKG, Premium Sound PKG, Sport PKG, Step, NAV [Std Equip in 645], HUD, Satellite (SIRIUS) Radio, Aux Input, Bluetooth enabled using iPhone 3GS w/ adapter cradle - Build date - 01/05, Baby delivered 2/24/05
Default

Originally Posted by Centurion' post='247903' date='Mar 1 2006, 01:28 PM
Is 15% a sort of rule-of-thumb?
If so, these cars are dynoing (is that a word ) just slightly less than where they're suppose to.
Yes it is kind of a rule of thumb. And there is another rule of thumb, all dynos are not equal. So you cannot do direct comparisons from dyno to dyno. Big discussion on this on Dinan web site. It is best used for comparing different cars on same dyno on same day under same conditions (set up, testing method and weather). Also Reasonably ok to compare before and after mods, but then this becomes problematic if it is done over long periods of time such as stock run in February, modded run in July for example. Much better for the kinds of things that DMS or other chips offerings might do. Before run and then after run in short period. Same with charcol filter removal, could do a before and then an after removal in quick succession. And too, if you do too many runs, the car may not like it. So... lots of things to consider.
Old 03-01-2006, 09:53 AM
  #17  
Senior Members
 
0700700's Avatar
 
Join Date: Nov 2005
Location: sofia / london
Posts: 3,236
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by Centurion' post='247903' date='Mar 1 2006, 06:28 PM
Is 15% a sort of rule-of-thumb?
If so, these cars are dynoing (is that a word ) just slightly less than where they're suppose to.
well expect a loss of 14.5 - 17 % so around 15% would be acceptable on a good dyno


/edit cobradav you beat me to it
Old 03-01-2006, 12:52 PM
  #18  
Contributors
 
Alex.br's Avatar
 
Join Date: Dec 2004
Location: Brazil
Posts: 1,432
Likes: 0
Received 0 Likes on 0 Posts
My Ride: 2007 E60 M5
Default

Well I was really surprised with the Eisenmann result. They claim + 8 bhp.

I was ordering one but now with this result I need to think again about it ...
Old 03-01-2006, 02:21 PM
  #19  
Members
Thread Starter
 
TV550's Avatar
 
Join Date: Nov 2005
Posts: 184
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by Alex.br' post='248050' date='Mar 1 2006, 01:52 PM
Well I was really surprised with the Eisenmann result. They claim + 8 bhp.

I was ordering one but now with this result I need to think again about it ...
I liked the way the exhaust tips looked on the Eisenmann. The sound is really really loud. I dont know if I would like it in daily driving. Also Frank the guy that owned that blue car said he is ordering the mid pipes for that exhaust and said that is where the HP increase would be. I was really surprised that it got 348hp when the other cars avg 330 HP in P400 but in P500 mode it did not do anything.

Also its interesting that charcoal filter removal did not do anything for the car in P400 mode but in P500 mode it got 10HP extra. This leads me to believe that the 550 would not really benefit from the charcoal filter removal.
Old 03-01-2006, 03:57 PM
  #20  
Contributors
 
znod's Avatar
 
Join Date: Aug 2005
Location: Austin TX
Posts: 6,554
Likes: 0
Received 0 Likes on 0 Posts
My Ride: 2014 X5 xDrive 5.0 M Package Carbon Black Metallic/2008 M Roadster Imola Red
Default

Originally Posted by JayEll' post='247713' date='Mar 1 2006, 08:02 AM
question: i'm not overly familiar with dyno testing, but these figures seem low no?
They are RWHP--I guess you know. But, yes, they seem a tad low even for RWHP. I do not have any idea what the loss from an SMG would be, but I would bet more than a manual. If so, then the dyno numbers look pretty good. Let's say .17 is the loss from an SMG. Then, the expected HP would be 419.

On the issue of charcoal filter removal, these tests imply unreasonably that the filter removal may help, may not help, or may hurt. At the extreme, one might conclude that the filter removal added about 16 RWHP--which would mean about 19 crank HP. I'm not yet ready to attribute any increase in HP to the filter removal. I'm keeping mine until I see much better evidence. The dyno tests reveal some of the follies of trying to draw conclusions from one-time dyno testing in particular.


Quick Reply: M5 dyno day!!!!!!!!!!!!



All times are GMT -8. The time now is 08:25 PM.