E90Post
 


 
BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > stock DME load limits hindering piggyback potential?



Reply
 
Thread Tools Search this Thread
      01-17-2011, 02:45 PM   #111
Clap135
Brigadier General
Clap135's Avatar
102
Rep
3,460
Posts

Drives: 2009 N54
Join Date: Jul 2009
Location: Sticky's Mom House

iTrader: (1)

Quote:
Originally Posted by Doug007 View Post
The DME sees knock with no piggyback interference. If it was going to lower it's boost setpoint you would see it.

Cobb saying "It's entirely possible" that the DME shifts strategy doesn't mean it does.

All evidence points to it pulling timing until it gets to the point it goes into limp mode and cuts all boost.
what? The dme thinks it is running 6-8psi falling down to like 4-5 no matter what actual boost is. So if hte ecu sees stock boost all them, with knock, it will back down timing. pretty much what the jb3 relies on. Makes you wonder what the actual conditions are to lower boost, or if boost is even meant to be lowered when the ecu is confused into thinking everything is gravy. From my logs, the procede tells the ecu timing is perfect, boost is perfect, So why would it drop?
Appreciate 0
      01-17-2011, 02:46 PM   #112
Mike@N54Tuning.com
Joint Chiefs of Staff
Canada
4908
Rep
115,980
Posts

Drives: 2007 335i, 2015 M3
Join Date: Dec 2008
Location: N54tuning.com

iTrader: (89)

Quote:
Originally Posted by Clap135 View Post
BULLSHTI, should i quote all the times terry said "map up" to people in cold weather or on meth. Try again.
The JB3 did not have enough of an adjustment in it to fully overcome the OEM logic. But if there were no adjustment you would have seen much wilder boost swings and required more conservative tuning. Anyway the JB4 method of interdependent targets is much better for extracting maximum performance under all conditions in my opinion. If you prefer another method more power to you. Looking forward to seeing your track times with the flash tuning.

Mike

Last edited by Mike@N54Tuning.com; 01-17-2011 at 02:53 PM..
Appreciate 0
      01-17-2011, 02:50 PM   #113
Clap135
Brigadier General
Clap135's Avatar
102
Rep
3,460
Posts

Drives: 2009 N54
Join Date: Jul 2009
Location: Sticky's Mom House

iTrader: (1)

Quote:
Originally Posted by Mike@N54Tuning.com View Post
The JB3 did not have enough of an adjustment in it to full overcome the OEM logic. But if there were no adjustment you would have seen much wilder boost swings and required more conservative tuning. Anyway the JB4 method of interdependent targets is much better for extracting maximum performance under all conditions in my opinion. If you prefer another method more power to you. Looking forward to seeing your track times with the flash tuning.

Mike
You shouldnt look forward to my track times, as I dont really care about times. Trap speed on the other hand, we will see once a flash is capable of running the boost piggies are. Still kinda ironic how the jb4 has yet to set any record compared to the jb3.
Appreciate 0
      01-17-2011, 02:54 PM   #114
Doug007
Second Lieutenant
United_States
6
Rep
291
Posts

Drives: Spacegrau 2009 335i 6MT
Join Date: Feb 2010
Location: Houston, TX

iTrader: (0)

Quote:
Originally Posted by Clap135 View Post
what? The dme thinks it is running 6-8psi falling down to like 4-5 no matter what actual boost is. So if hte ecu sees stock boost all them, with knock, it will back down timing. pretty much what the jb3 relies on. Makes you wonder what the actual conditions are to lower boost, or if boost is even meant to be lowered when the ecu is confused into thinking everything is gravy. From my logs, the procede tells the ecu timing is perfect, boost is perfect, So why would it drop?
Again, the DME sees knock with no interference. It may think boost is 8psig and timing is as it requests, but it still hears the knock.

It would be like you put some 80 octane gas in at stock boost levels. If the DME was going to reduce the boost target, we would be able to see it.

The DME certainly pulls timing and we see that loud and clear.
__________________

2009 Spacegrau 335i
Appreciate 0
      01-17-2011, 02:55 PM   #115
Mike@N54Tuning.com
Joint Chiefs of Staff
Canada
4908
Rep
115,980
Posts

Drives: 2007 335i, 2015 M3
Join Date: Dec 2008
Location: N54tuning.com

iTrader: (89)

Quote:
Originally Posted by Clap135 View Post
You shouldnt look forward to my track times, as I dont really care about times. Trap speed on the other hand, we will see once a flash is capable of running the boost piggies are. Still kinda ironic how the jb4 has yet to set any record compared to the jb3.
The JB3 is a fast tune. BMS will soon have a few thousand in stock from JB4 upgrades if you ever decide to go that route. No doubt JB4 will be just as fast though, but its just now hitting the market.

Mike
Appreciate 0
      01-17-2011, 02:57 PM   #116
Clap135
Brigadier General
Clap135's Avatar
102
Rep
3,460
Posts

Drives: 2009 N54
Join Date: Jul 2009
Location: Sticky's Mom House

iTrader: (1)

Quote:
Originally Posted by Doug007 View Post
Again, the DME sees knock with no interference. It may think boost is 8psig and timing is as it requests, but it still hears the knock.

It would be like you put some 80 octane gas in at stock boost levels. If the DME was going to reduce the boost target, we would be able to see it.

The DME certainly pulls timing and we see that loud and clear.
Put in 80 octane and let me know if you car will run 6-8psi falling to 4.
Appreciate 0
      01-17-2011, 02:58 PM   #117
Clap135
Brigadier General
Clap135's Avatar
102
Rep
3,460
Posts

Drives: 2009 N54
Join Date: Jul 2009
Location: Sticky's Mom House

iTrader: (1)

Quote:
Originally Posted by Mike@N54Tuning.com View Post
The JB3 is a fast tune. BMS will soon have a few thousand in stock from JB4 upgrades if you ever decide to go that route. No doubt JB4 will be just as fast though, but its just now hitting the market.

Mike
You have a higher chance of winning the lottery then me running that tune again.
Appreciate 0
      01-17-2011, 03:04 PM   #118
Shellacked135i
Banned
6
Rep
348
Posts

Drives: 2010 135i, 09 335xi
Join Date: Jan 2011
Location: SoFla

iTrader: (1)

Quote:
Originally Posted by Clap135 View Post
You have a higher chance of winning the lottery then me running that tune again.


winning the Mega Millions are 1 in 135145920
Appreciate 0
      01-17-2011, 03:14 PM   #119
Clap135
Brigadier General
Clap135's Avatar
102
Rep
3,460
Posts

Drives: 2009 N54
Join Date: Jul 2009
Location: Sticky's Mom House

iTrader: (1)

Quote:
Originally Posted by Shellacked135i View Post


winning the Mega Millions are 1 in 135145920


so you're saying theres a chance
Appreciate 0
      01-17-2011, 09:09 PM   #120
D.B.S
Lieutenant Colonel
D.B.S's Avatar
No_Country
30
Rep
1,748
Posts

Drives: '11 X5 35i / '13 S5
Join Date: Jun 2009
Location: Deployed to Kuwait

iTrader: (2)

This thread went from to in a matter of days. There was a nice CIVIL conversation between tuners, (albeit only two-three tuners tuned in, pardon the pun). But like all the other threads, it's turned into a shouting match, on whose balls are bigger, and who's tune is better (A flame war in progress).

Oh well, what else can you expect... It will never change, so guess i should just STFU...
__________________

BMW X5 35i: Boopie Exhaust & Intercooler, K&N Drop in Filter, JB3 (3+ psi)
2013 Dodge Challenger R/T: CAI, Catch Can, Custom Exhaust, Headers, 87MM Throttle Body, Diablo Custom 93 OCT Tune
Appreciate 0
      01-17-2011, 09:23 PM   #121
mazdaspeed6
Second Lieutenant
13
Rep
272
Posts

Drives: 335i
Join Date: Dec 2009
Location: ct

iTrader: (2)

Great first page...
__________________
car for sale
Appreciate 0
      01-17-2011, 09:50 PM   #122
secretsquirrel
Colonel
secretsquirrel's Avatar
130
Rep
2,291
Posts

Drives: f80
Join Date: Dec 2010
Location: Far North Dallas

iTrader: (2)

Quote:
Originally Posted by Army335xi View Post
This thread went from to in a matter of days. There was a nice CIVIL conversation between tuners, (albeit only two-three tuners tuned in, pardon the pun). But like all the other threads, it's turned into a shouting match, on whose balls are bigger, and who's tune is better (A flame war in progress).

Oh well, what else can you expect... It will never change, so guess i should just STFU...

This isn't bad at all, you're just being hyper sensitive to the subject. Sure the exchange from Clap to Mike might have been slightly charged, but the rest of the thread has been a gem with lots of good information.
Appreciate 0
      01-19-2011, 02:13 PM   #123
Aridk
Lieutenant
Aridk's Avatar
Denmark
7
Rep
520
Posts

Drives: 335i
Join Date: Jan 2008
Location: Denmark

iTrader: (0)

I guess the post got deluted and deied
Just a thought In one of the resent Coob vs V5 vs Jb threads I read something about cracking the vanous, How much more power can we hope for there?
I remember some time ago Dms uk said that the susses with their flash for the e46 M3 was down to tweeking the vanos(normaly asp. so 10hp or so?)
I like the way we´re heading with the latest v5 beta maps (not that I have tested them so yet) with more power on less boost.
Appreciate 0
      06-07-2012, 01:16 AM   #124
Lankster
Sigma Alpha Epsilon
United_States
38
Rep
425
Posts

Drives: 2007 335xi
Join Date: Apr 2012
Location: Encinitas

iTrader: (1)

Bump muahaha
subscribed
Appreciate 0
      06-07-2012, 08:12 AM   #125
chiaobaby
First Lieutenant
chiaobaby's Avatar
United_States
9
Rep
332
Posts

Drives: 335i
Join Date: Jul 2009
Location: NYC

iTrader: (7)

don't bring back the dead
Appreciate 0
      06-07-2012, 08:53 AM   #126
Lulz_M3
Banned
United_States
33
Rep
1,029
Posts

Drives: AW 335i 6MT
Join Date: Oct 2011
Location: Jax, Fl

iTrader: (0)

Interesting read. Reaffirms that i made the correct decision in my tune of choice.
Appreciate 0
      06-07-2012, 09:12 AM   #127
themyst
Major General
themyst's Avatar
South Korea
177
Rep
6,631
Posts

Drives: '16 MK7 GTI
Join Date: Feb 2009
Location: NYC

iTrader: (8)

Quote:
Originally Posted by Aridk View Post
I guess the post got deluted and deied
Just a thought In one of the resent Coob vs V5 vs Jb threads I read something about cracking the vanous, How much more power can we hope for there?
I remember some time ago Dms uk said that the susses with their flash for the e46 M3 was down to tweeking the vanos(normaly asp. so 10hp or so?)
I like the way we´re heading with the latest v5 beta maps (not that I have tested them so yet) with more power on less boost.
VANOs tuning does not add power it just shifts the curve further north in the powerband at the cost of peak power around 5k rpm.
__________________
E90 LCI N54 6AT
Appreciate 0
      06-07-2012, 10:54 AM   #128
mrbillytalent
Lieutenant
17
Rep
575
Posts

Drives: '99 e46 323i & '07 e90 335i
Join Date: May 2012
Location: Toledo OH

iTrader: (1)

Who's this Clap guy? He messed up all the fun. I'm anxious to see where this conversation would pick up being over a year later
Appreciate 0
Reply

Bookmarks


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 06:27 PM.




e90post
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