E90Post
 


 
BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > Lag with 2 turbos KKK K04-22, how to reduce it?



Reply
 
Thread Tools Search this Thread
      03-20-2015, 07:45 PM   #1
rif75
Lieutenant
France
64
Rep
412
Posts

Drives: BMW M4 LCI ZCP and BMW M5 f10
Join Date: Jan 2014
Location: Paris

iTrader: (0)

Lag with 2 turbos KKK K04-22, how to reduce it?

Hello guys

So I have a particular N54 with 2 turbos K04-22, same on as the Audi s3 225hp. I'm running in map 6 with 20.5 psi. 60% of e85.

I have some important lag before the turbos are charging, with the JB4, I put the lagfix at 100%.

1 question : Does it hurt for the turbos or the engine?
2 question : What can be done to help to have even less lag

I'm going to put a Cobb charge pipe and 2 Forge DV, don't know if it can help with this.

Thanks
__________________
BMW M5 ZCP and M4 ZCP. BMW 540i G30 stage 2 with KW street confort, Wagner DP, Remus catback, M sport brakes 395mm front and 385mm rear. MHD tune.
Appreciate 0
      03-22-2015, 03:18 AM   #2
MHD Tuning
Banned
Germany
1978
Rep
345
Posts

Drives: M3F80#M5F90#340iF31#SupraA90
Join Date: Feb 2015
Location: Germany

iTrader: (0)

Posting JB4 logs would be a starter. You probably need a custom tune though, there a certain number of techniques that help spooling bigger turbos.

-Martial
Appreciate 0
      03-25-2015, 10:18 AM   #3
phubar
Lieutenant
United_States
86
Rep
465
Posts

Drives: 335 Vert
Join Date: Apr 2013
Location: Fort Campbell KY

iTrader: (8)

Can u post some more details about your k04-22 setup?
Appreciate 0
      03-25-2015, 11:36 AM   #4
rif75
Lieutenant
France
64
Rep
412
Posts

Drives: BMW M4 LCI ZCP and BMW M5 f10
Join Date: Jan 2014
Location: Paris

iTrader: (0)

Quote:
Originally Posted by MHD Tuning View Post
Posting JB4 logs would be a starter. You probably need a custom tune though, there a certain number of techniques that help spooling bigger turbos.

-Martial
I have some log, there it is. I don't know if it's parameters than I can touch with the JB4?

Thank you.
__________________
BMW M5 ZCP and M4 ZCP. BMW 540i G30 stage 2 with KW street confort, Wagner DP, Remus catback, M sport brakes 395mm front and 385mm rear. MHD tune.
Appreciate 0
      03-25-2015, 11:40 AM   #5
rif75
Lieutenant
France
64
Rep
412
Posts

Drives: BMW M4 LCI ZCP and BMW M5 f10
Join Date: Jan 2014
Location: Paris

iTrader: (0)

Quote:
Originally Posted by phubar View Post
Can u post some more details about your k04-22 setup?
All I know is in my signature. I bought the car with these tubos
__________________
BMW M5 ZCP and M4 ZCP. BMW 540i G30 stage 2 with KW street confort, Wagner DP, Remus catback, M sport brakes 395mm front and 385mm rear. MHD tune.
Appreciate 0
      03-25-2015, 02:31 PM   #6
MHD Tuning
Banned
Germany
1978
Rep
345
Posts

Drives: M3F80#M5F90#340iF31#SupraA90
Join Date: Feb 2015
Location: Germany

iTrader: (0)

Quote:
Originally Posted by rif75 View Post
I have some log, there it is. I don't know if it's parameters than I can touch with the JB4?

Thank you.
I see nothing in your post.
- Martial
Appreciate 0
      03-25-2015, 02:45 PM   #7
rif75
Lieutenant
France
64
Rep
412
Posts

Drives: BMW M4 LCI ZCP and BMW M5 f10
Join Date: Jan 2014
Location: Paris

iTrader: (0)

I can't put the log, the file type is not supported
__________________
BMW M5 ZCP and M4 ZCP. BMW 540i G30 stage 2 with KW street confort, Wagner DP, Remus catback, M sport brakes 395mm front and 385mm rear. MHD tune.
Appreciate 0
      03-25-2015, 02:47 PM   #8
MHD Tuning
Banned
Germany
1978
Rep
345
Posts

Drives: M3F80#M5F90#340iF31#SupraA90
Join Date: Feb 2015
Location: Germany

iTrader: (0)

upload to http://datazap.me then.
Appreciate 0
      03-25-2015, 08:50 PM   #9
rif75
Lieutenant
France
64
Rep
412
Posts

Drives: BMW M4 LCI ZCP and BMW M5 f10
Join Date: Jan 2014
Location: Paris

iTrader: (0)

Thank you very much.




Quote:
Originally Posted by MHD Tuning View Post
upload to http://datazap.me then.
Attached Images
   
__________________
BMW M5 ZCP and M4 ZCP. BMW 540i G30 stage 2 with KW street confort, Wagner DP, Remus catback, M sport brakes 395mm front and 385mm rear. MHD tune.
Appreciate 0
      03-26-2015, 10:19 AM   #10
MHD Tuning
Banned
Germany
1978
Rep
345
Posts

Drives: M3F80#M5F90#340iF31#SupraA90
Join Date: Feb 2015
Location: Germany

iTrader: (0)

post the link to the your datazap account or logs, screenshots are terrible to analyze.
BTW you can shoot me an email (see signature), my mother tongue is French.
Appreciate 0
      03-30-2015, 07:11 AM   #11
rif75
Lieutenant
France
64
Rep
412
Posts

Drives: BMW M4 LCI ZCP and BMW M5 f10
Join Date: Jan 2014
Location: Paris

iTrader: (0)

Thank you very much, there is the link of my log

http://datazap.me/u/rif75/log-1427334125?log=0&data=1-4
__________________
BMW M5 ZCP and M4 ZCP. BMW 540i G30 stage 2 with KW street confort, Wagner DP, Remus catback, M sport brakes 395mm front and 385mm rear. MHD tune.
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 12:14 AM.




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