Welcome to Bimmerfest -- The #1 Online Community for BMW related information! Please enjoy the discussion forums below and share your experiences with the 200,000 current, new and past BMW owners. The forums are broken out by car model and into other special interest sections such as BMW European Delivery and a special forum to voice your questions to the many BMW dealers on the site to assist our members!

Please follow the links below to help get you started!

Go Back   Bimmerfest - BMW Forums > BMW Model Discussions > 3 Series / 4 Series > E90/E91/E92/E93 (2006 - 2013)

E90/E91/E92/E93 (2006 - 2013)
The E9X is the 4th evolution of the BMW 3 series including a highly tuned twin turbo 335i variant pushing out 300hp and 300 ft. lbs. of torque. BMW continues to show that it sets the bar for true driving performance! -- View the E9X Wiki

Reply
 
Thread Tools Display Modes
  #1  
Old 01-24-2013, 04:34 AM
brewder brewder is offline
Officially Welcomed to the 'Fest
Location: Allentown PA Area
 
Join Date: May 2010
Posts: 590
Mein Auto: 2011 328i xDrive
N52 Comparison

Hello,

I have an E92 and the wife an E83. Both have the N52 engine (N52B30 to be exact)....but each is tuned slightly different.

My E92 has a rated 230 HP while the E83 is rated at 260 HP IIRC...

Having both in my garage, I can say the E83 is very much more responsive.. Not much more powerful, but definitely more throttle responsiveness. That implies (at least to me) that there is a way to "tune" the E92?? Maybe this is what installing a JB would give me??

From a Wiki I also saw the statement below which may explain it straight away:

*output changes result from the omission of the variable resonance system, dual plenum intake runner system, and the variable back pressure muffler.

Any other thoughts for me to brew on?

//Brew
__________________
//Brew

('11 E92 328i xDrive - Deep Sea Blue - New to Me)
('07 E92 328xi - Space Gray - still in the family)
Reply With Quote
Ads by Google
  #2  
Old 01-24-2013, 07:01 AM
CALWATERBOY's Avatar
CALWATERBOY CALWATERBOY is offline
Officially Welcomed to the 'Fest
Location: San Francisco
 
Join Date: Aug 2009
Posts: 10,009
Mein Auto: 2009 E93 N54
Quote:
Originally Posted by brewder View Post
Hello,

I have an E92 and the wife an E83. Both have the N52 engine (N52B30 to be exact)....but each is tuned slightly different.

My E92 has a rated 230 HP while the E83 is rated at 260 HP IIRC...

Having both in my garage, I can say the E83 is very much more responsive.. Not much more powerful, but definitely more throttle responsiveness. That implies (at least to me) that there is a way to "tune" the E92?? Maybe this is what installing a JB would give me??

From a Wiki I also saw the statement below which may explain it straight away:

*output changes result from the omission of the variable resonance system, dual plenum intake runner system, and the variable back pressure muffler.

Any other thoughts for me to brew on?

Like government health care, there's little you can do.

The N52 is engineered within narrow constraints, and without very high expense, not much more output is available. At issue are emissions and fuel economy regulations.

N54 has the ability to vary intake gas pressure, therefore power - that's where you'll find better power, and if staying within EPA requirements, not a lot to do beyond varying boost. Note that advance is automatically adjusted in software - higher octane fuel has its effect but is not a tune. Though maps may be modified to accommodate higher than expected octane, they're an extension of BMW's maps. If complying with law.

Word to the wise: Non-compliance is risky - owners have been cited for emissions system modification, a criminal offense.
Reply With Quote
  #3  
Old 01-24-2013, 07:12 AM
floydarogers's Avatar
floydarogers floydarogers is offline
Pedant and Curmudgeon
Location: Renton, WA
 
Join Date: Oct 2010
Posts: 3,527
Mein Auto: 335d
Quote:
Originally Posted by brewder View Post
...I have an E92 and the wife an E83. Both have the N52 engine (N52B30 to be exact)....but each is tuned slightly different.

My E92 has a rated 230 HP while the E83 is rated at 260 HP IIRC...
You won't get any more power (or at least no more than 5-10) with any tune.
The one in the X3 has all the intake "goodies", and a "less restrictive" exhaust (which actually gives it 5 more hp than the same engine in the 2006 330i sedan). the "3.0si" on the front fenders indicates this version of the engine.

The one in the E92 is the simplified one with more hp than the "2.5" but less than the "3.0" (in the 2006 cars) due to re-tuning the engine exclusively for non-fancy-intake.

All those engines for the US/CA market are 3L (except for the CA 2.3L).
Reply With Quote
  #4  
Old 01-24-2013, 07:52 AM
brewder brewder is offline
Officially Welcomed to the 'Fest
Location: Allentown PA Area
 
Join Date: May 2010
Posts: 590
Mein Auto: 2011 328i xDrive
Thanks for the replies! I have no real desire to tune my E92.. was more looking to understand the variances. Thanks everyone!
__________________
//Brew

('11 E92 328i xDrive - Deep Sea Blue - New to Me)
('07 E92 328xi - Space Gray - still in the family)
Reply With Quote
Reply

Bookmarks


Forum Navigation
Go Back   Bimmerfest - BMW Forums > BMW Model Discussions > 3 Series / 4 Series > E90/E91/E92/E93 (2006 - 2013)
Today's Posts Search
Thread Tools
Display Modes

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 On



Forum Jump


All times are GMT -7. The time now is 10:10 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
© 2001-2011 performanceIX, Inc. All Rights Reserved .: guidelines .:. privacy .:. terms