E90Post
 


TireRack
 
BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > My jb4 map 1 e85 mix log



Reply
 
Thread Tools Search this Thread
      12-11-2012, 04:16 AM   #1
listed5
Private
 
Drives: 2011 e93 M3 DCT black/bamboo
Join Date: Oct 2009
Location: Frederick, Maryland

Posts: 95
iTrader: (1)

My jb4 map 1 e85 mix log

I just recently started running a 60/40 93/e85 fuel mix and wanted some opinions on my graph before I move on to map5.
Name:  map112912c3rdgear.jpg
Views: 300
Size:  44.7 KB
A 3rd gear run
Name:  map112912b.jpg
Views: 294
Size:  43.0 KB
A random run, I'm not sure the parameters...
So I'm basically looking for fuel trim approval before I move on to map 5. The car actually feels slower than it did on 93 only. I tried out map 5 with the new fuel mix recently and it shut down due to boost overage.
Thanks for any info! I'd be happy to make a few more logs if anyone needs to see certain parameters.
Chris
listed5 is offline  
0
Reply With Quote
      12-11-2012, 05:58 AM   #2
spool twice
Rainbow Racer
 
spool twice's Avatar
 
Drives: S65B40
Join Date: Sep 2010
Location: Sarasota, FL

Posts: 1,249
iTrader: (7)

you're maxing out fuel trims, what is your open loop set at? It may not be a good idea to run that high of an E85 mix during winter.
__________________
E90 LCI M3 7-DCT Interlagos Blue/Novillo Silver
[MS Pullies|K&N drop-in|Test Pipes |Evolve Stage II tune|Evolve Servotronic Map|Evolve M3 GTS-DCT file]
spool twice is offline   United_States
0
Reply With Quote
      12-11-2012, 04:19 PM   #3
listed5
Private
 
Drives: 2011 e93 M3 DCT black/bamboo
Join Date: Oct 2009
Location: Frederick, Maryland

Posts: 95
iTrader: (1)

That's what I was concerned about. I haven't adjusted the loop at all, so whatever jb4's default is.
listed5 is offline  
0
Reply With Quote
      12-12-2012, 06:44 PM   #4
E92TTKING
Lieutenant Colonel
 
E92TTKING's Avatar
 
Drives: e92
Join Date: Oct 2009
Location: Merica

Posts: 1,588
iTrader: (8)

raise boost limit to 19psi
E92TTKING is offline   Greece
0
Reply With Quote
      12-12-2012, 10:34 PM   #5
idrift4wd
Brigadier General
 
Drives: Three Hundred and Thirty Five
Join Date: Jul 2010
Location: Yonkers NY

Posts: 3,311
iTrader: (0)

Garage List
2007 BMW  [3.50]
wouldnt map 5 be better then map 1 since it autotune will correct any problems?
idrift4wd is offline  
0
Reply With Quote
      12-12-2012, 11:50 PM   #6
neilvosko
Major
 
neilvosko's Avatar
 
Drives: 335i e92 FBO
Join Date: Dec 2011
Location: miami

Posts: 1,398
iTrader: (16)

Yea, ur trims are high: get bms flash or lower e85
neilvosko is offline   United_States
0
Reply With Quote
      12-13-2012, 04:32 AM   #7
listed5
Private
 
Drives: 2011 e93 M3 DCT black/bamboo
Join Date: Oct 2009
Location: Frederick, Maryland

Posts: 95
iTrader: (1)

Quote:
Originally Posted by idrift4wd View Post
wouldnt map 5 be better then map 1 since it autotune will correct any problems?
From all that I've read, it's better to begin using e85 while in map 1 to make sure your fuel trims are running at a safe level (as it requires ~1.2x the quantity of e85 as it would e93 to "fuel the fire"). So, you do some logging and find out if you're injectors are nearing maximum duty cycle (which mine are), before switching to map 5 which would target a much higher boost lever (requiring more fuel) and eventually max out my injects which would cause a lean condition and potentially grenade the motor. I'm going to refill with 93 once my tank empties and try map 5 on 93 only. This may provide that small performance bump I'm looking for until my M3 arrives.
Chris
listed5 is offline  
0
Reply With Quote
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 01:55 AM.




e90post
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