M5POST
BMW Garage BMW Meets Register Search Today's Posts Mark Forums Read

Go Back   M5POST - BMW M5 Forum > F10 M5 Forum > Engine, Exhaust, Drivetrain Modifications

Post Reply
 
Thread Tools Search this Thread
      05-16-2013, 10:28 AM   #67
Tom C
Captain
45
Rep
646
Posts

Drives: M8 GC Comp, Shelby GT500
Join Date: May 2013
Location: Maryland

iTrader: (0)

Quote:
Originally Posted by avlnch View Post
Guys, the dyno sheets are uncorrected. This is one reason for the high numbers.

Its probably more like 25hp (tops?) for exhaust, plates and charcoal. Thats what I would think makes sense, but this could easily be argued both ways.

I would agree with one thing, the car is faster with charcoals out and plates in places. Charcoals would restrict airflow, and plates would stop hot air from entering the intake. These are defiantly power gains. How much? We could go back and forth all day. To me, all that matters is these are easy and quick mods to do.. and you get a power increase. Really, thats all that matters (to me atleast).
I just read through this thread. The three dynos shown are actually corrected using the "STD" method. All that means is that in addition to the SAE correction it uses elevation as an additional factor in correcting the data (which is an input by the dyno operator). I have downloaded the WINpep software and am able to view the actual "drf" files (sent to me by the dyno operators when I get my cars dynoed), so you can toggle through all the different corrections. STD correction always reads higher (unless the dyno facility is below sea level and input as such) than an SAE correction. So the STD correction isn't likely a factor in why there is such a huge variance in the peak dyno figures since it appears to be the same dyno facility and they would have to have changed the elevation inputs to skew it.
Appreciate 0
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



All times are GMT -5. The time now is 05:49 PM.




m5post
Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
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