E90Post
 


GTB Performance
 
BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > Would I gain anything from lower IATs given this datalog ?



Reply
 
Thread Tools Search this Thread
      11-15-2010, 02:08 PM   #1
tscdennab
Banned
 
Drives: BMW 335i
Join Date: Oct 2010
Location: Europe

Posts: 1,811
iTrader: (0)

Garage List
2008 BMW  [3.12]
Would I gain anything from lower IATs given this datalog ?

Hi,

Here is a graph of my IATs and timing during a logging session. The gear changes are 1-2-3-4-idle-2-3-4-idle. The X axis is the RPM. I wonder if there could be any added power benefits by a larger intercooler given these timings ? Also, don't the IATs look pretty high compared to the ambient temp ?
Attached Images
 

Last edited by tscdennab; 11-15-2010 at 03:06 PM.
tscdennab is offline  
0
Reply With Quote
      11-15-2010, 02:29 PM   #2
Jeff@TopGearSolutions
BimmerPost Supporting Vendor

 
Jeff@TopGearSolutions's Avatar
 
Drives: C6 Z06, GSXR-750, 09 335i
Join Date: Dec 2008
Location: TopGearSolutions.com

Posts: 17,083
iTrader: (32)

Send a message via AIM to Jeff@TopGearSolutions
Is this on stock intercooler?
Jeff@TopGearSolutions is offline   United_States
0
Reply With Quote
      11-15-2010, 02:30 PM   #3
tscdennab
Banned
 
Drives: BMW 335i
Join Date: Oct 2010
Location: Europe

Posts: 1,811
iTrader: (0)

Garage List
2008 BMW  [3.12]
Quote:
Originally Posted by JPSlick View Post
Is this on stock intercooler?
Yes. Also on Power Kit boost (about stock + 1-2psi).
tscdennab is offline  
0
Reply With Quote
      11-15-2010, 02:37 PM   #4
Jeff@TopGearSolutions
BimmerPost Supporting Vendor

 
Jeff@TopGearSolutions's Avatar
 
Drives: C6 Z06, GSXR-750, 09 335i
Join Date: Dec 2008
Location: TopGearSolutions.com

Posts: 17,083
iTrader: (32)

Send a message via AIM to Jeff@TopGearSolutions
Quote:
Originally Posted by tscdennab View Post
Yes. Also on Power Kit boost (about stock + 1-2psi).
You will find benefits of an intercooler in 3rd+ gears, really 4th and 5th where heat soak really plays in. The power increase wont be anything mind blowing but if you notice the car getting slower between back to back pulls thats where the intercooler will show its benefits.

Last but not least it allows the turbos to do less work to create more efficient power.

Looking at your ignition it seems par for the course. 4th gear the first time was a little low at first, but nothing to call home about especially on pump gas. Considering your 2nd (4th gear) pull had excellent time I would say it was simply adapting.

What were the ambient temps?

I would invest in a more powerful tune and an intercooler down the road personally.
Jeff@TopGearSolutions is offline   United_States
0
Reply With Quote
      11-15-2010, 03:07 PM   #5
tscdennab
Banned
 
Drives: BMW 335i
Join Date: Oct 2010
Location: Europe

Posts: 1,811
iTrader: (0)

Garage List
2008 BMW  [3.12]
Quote:
Originally Posted by JPSlick View Post

What were the ambient temps?
The ambient temp is plotted in the graph. I have also added the pedal position and throttle position.
tscdennab 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 12:59 PM.




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