E90Post
 


 
BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > 2007 Engine Tech: How the N54 works (must read!!!)



Reply
 
Thread Tools Search this Thread
      12-06-2006, 12:30 PM   #1
ksfrogman
Major General
ksfrogman's Avatar
United_States
570
Rep
6,750
Posts

Drives: E90 330i 6MT
Join Date: Nov 2005
Location: Torrance, CA

iTrader: (12)

Garage List
2006 330i  [0.00]
2006 330i  [0.00]
Post 2007 Engine Tech: How the N54 works (must read!!!)

Interesting reading:

PDF Files:

2007 Engine Introduction (right-click-save-as)
2007 Engine Management (right-click-save-as)
2007 Engine Mechanical (right-click-save-as)
2007 Engine Technology (right-click-save-as)



ENGINE INTRODUCTION
Attached Images
       
__________________

Last edited by ksfrogman; 12-08-2006 at 09:46 AM..
Appreciate 2
Vivek.1363.50
      12-06-2006, 12:30 PM   #2
ksfrogman
Major General
ksfrogman's Avatar
United_States
570
Rep
6,750
Posts

Drives: E90 330i 6MT
Join Date: Nov 2005
Location: Torrance, CA

iTrader: (12)

Garage List
2006 330i  [0.00]
2006 330i  [0.00]
ENGINE MANAGEMENT
Attached Images
          
__________________
Appreciate 3
RAZEx0.00
Vivek.1363.50
      12-06-2006, 12:33 PM   #3
ksfrogman
Major General
ksfrogman's Avatar
United_States
570
Rep
6,750
Posts

Drives: E90 330i 6MT
Join Date: Nov 2005
Location: Torrance, CA

iTrader: (12)

Garage List
2006 330i  [0.00]
2006 330i  [0.00]
continued...
Attached Images
    
__________________
Appreciate 6
      12-06-2006, 12:38 PM   #4
NaViT
Banned
NaViT's Avatar
United_States
69
Rep
3,404
Posts

Drives: 04 M3/E92 335i
Join Date: Sep 2006
Location: N.Florida

iTrader: (11)

lol ur the man.. rename this to... "N54 engine for dummies" or "Turbo for dummies"
Appreciate 1
      12-06-2006, 12:38 PM   #5
Carnage
Lieutenant General
Carnage's Avatar
United_States
341
Rep
16,407
Posts

Drives: people insane
Join Date: Jun 2005
Location: classified

iTrader: (2)

good stuff, thanks for posting it.
Appreciate 0
      12-06-2006, 01:01 PM   #6
Ninjaneer
Shadow Warrior
Ninjaneer's Avatar
United_States
139
Rep
2,095
Posts

Drives: '07 335i Sedan
Join Date: Aug 2006
Location: Florida

iTrader: (0)

__________________
335i E90 / Arctic / Gray / Burl Walnut / Steptronic / ZPP / ZSP / Paddles / CA / Nav / PDC / OEM Spoiler
Mods:
PIAA Angel Eyes, Rear Fog Switch, Escort X50 Blue hardwire, 30% Charcoal Llumar
Installing soon: Rear Power Outlets (Happy Robot mod!)
Appreciate 0
      12-06-2006, 04:32 PM   #7
daisy16905
Second Lieutenant
10
Rep
246
Posts

Drives: 2014 M235i
Join Date: Jul 2006
Location: Olympia, WA

iTrader: (1)

I would love to see something on the intercooler efficiency rating. Anybody seen it???????
__________________
M235i (Black) Auto, JB 4 (Stage 2 / Map 7 with EWG & FF wires) ER DP, resonator delete, running E35, BMW Performance LSD, Hankook Ventus R-S3's (255/35/18 & 235/40/18) ATE Super Blue Racing brake fluid, 35% tint, black grills!
Appreciate 0
      12-06-2006, 06:47 PM   #8
williamf
Audi Convert
United_States
9
Rep
362
Posts

Drives: Past: 335i Now: TTRS stage 2+
Join Date: Nov 2006
Location: Houston

iTrader: (0)

The intercoolers look quite small. Anybody thinking about upgrading thier's?
Appreciate 0
      12-06-2006, 10:22 PM   #9
Crawlings
New Member
6
Rep
22
Posts

Drives: The Danger Ranger
Join Date: Jun 2006
Location: Rocket City, USA

iTrader: (0)

Frogman, that is one SUPERB FIND you have there. That is absolutely the end all be all to N54 Turbocharger questions.

You da man!
Appreciate 0
      12-07-2006, 05:24 AM   #10
remmib
General
remmib's Avatar
Norway
1566
Rep
29,202
Posts

Drives: 2013 F10 520d M-Sport
Join Date: Feb 2006
Location: Norway

iTrader: (0)

Great find, thanks
__________________

F10 520d M-Sport Alpine White | HRE P43SC 20x9+20x11 | Michelin PSS 255/35+295/30 | KW V3 Coilover | M5 Front Sway Bar + M550d Rear Sway Bar | 3DDesign Front Lip | BMW M Performance CF Spoiler | BMW M Performance Diffuser | BMW M Performance Black Grills | BMW M Performance Pedals |
Appreciate 0
      12-08-2006, 09:41 AM   #11
sstarch1
From Russia With Boost
sstarch1's Avatar
36
Rep
1,076
Posts

Drives: E92 335i - Vroom
Join Date: Jul 2006
Location: Alexandria, VA

iTrader: (0)

Garage List
2007 335i  [0.00]
Anyway we can get a PDF?
__________________
2007 BMW 335i - Delivered 9/8/06
Sparkling Grpahite with Black Leather/Aluminum Trim
Premium Package, Sports Package, Comfort Access.
Appreciate 0
      12-08-2006, 09:45 AM   #12
ksfrogman
Major General
ksfrogman's Avatar
United_States
570
Rep
6,750
Posts

Drives: E90 330i 6MT
Join Date: Nov 2005
Location: Torrance, CA

iTrader: (12)

Garage List
2006 330i  [0.00]
2006 330i  [0.00]
Quote:
Originally Posted by sstarch1
Anyway we can get a PDF?
PDF FILES:

Attached Images
File Type: pdf 2007 ENGINE INTRODUCTION.pdf (405.5 KB, 30740 views)
File Type: pdf 2007 ENGINE MANAGEMENT.pdf (1.11 MB, 31740 views)
File Type: pdf 2007 ENGINE MECHANICAL.pdf (528.2 KB, 27642 views)
File Type: pdf 2007 ENGINE TECHNOLOGY.pdf (333.1 KB, 22655 views)
__________________
Appreciate 4
      12-12-2006, 11:13 PM   #13
Vinobien
The 3 Day Diet!
Vinobien's Avatar
United_States
19
Rep
630
Posts

Drives: Space Gray e92, 88 911 Cab
Join Date: Sep 2006
Location: Conshohocken, PA

iTrader: (0)

Garage List
.

Much obliged Mr Frogman
Appreciate 0
      12-14-2006, 03:38 PM   #14
Turbo Squid
Model
Turbo Squid's Avatar
United_States
23
Rep
283
Posts

Drives: Fast and Loud
Join Date: Nov 2006
Location: San Francisco, CA

iTrader: (0)

Garage List
Sweet.:rocks:

__________________
“No man has the right to be an amateur in the matter of physical training. It is a shame for a man to grow old without seeing the beauty and strength of which his body is capable.” ~ Socrates
Appreciate 0
      12-15-2006, 02:41 PM   #15
OpenFlash
United_States
1733
Rep
17,960
Posts

Drives: A Lot
Join Date: Sep 2006
Location: SF Bay, CA

iTrader: (0)

Garage List
Awesome info.
Appreciate 0
      12-27-2006, 07:21 AM   #16
Panoz
Lieutenant Colonel
Panoz's Avatar
82
Rep
1,575
Posts

Drives: E92 Space Grey 335i ,Aero Kit
Join Date: Nov 2006
Location: EU

iTrader: (0)

There is also a BMW 3D-video presenting all of these things in an impressive way. Displays in 3D enviroment the fuel that travels through the pipes to the cylinders ,the "explosion" inside them and then the way to turbines ,and out to exhaust.

I'm trying to convice my friend who works on BMW to give it to me.
Then you know what will happens ,don't you?
__________________

Procede V4 , Catless DPs, Forge FMIC, Injen Intake, VK Oilcooler, Hartge Quads Exhaust, Modded CDV, Synapse BOV Kit, BMW Performance 335i SSK Kit, P3 vent boost gauge

Space Grey 335i -> See more pics HERE

Last edited by Panoz; 12-27-2006 at 07:40 AM..
Appreciate 0
      12-27-2006, 03:57 PM   #17
2007/335i/coupe
Falling in Love with German Boost
2007/335i/coupe's Avatar
22
Rep
298
Posts

Drives: 335i, E350, Accord EX, GSXR750
Join Date: Dec 2006
Location: California

iTrader: (0)

Garage List
Thanks for posting ksfrogman, especially with the downloaded PDFs.
Appreciate 0
      12-30-2006, 03:33 PM   #18
cybermaster
Ruby
cybermaster's Avatar
United_States
4
Rep
64
Posts

Drives: 335i, 335d
Join Date: Sep 2006
Location: California

iTrader: (0)

Thank you very much
Appreciate 0
      01-10-2007, 05:30 PM   #19
Shawn_speed
Private First Class
United_States
7
Rep
173
Posts

Drives: e90 335i 6Sp.
Join Date: Jul 2006
Location: Phoenix

iTrader: (2)

Personally and a number of forum members have experienced High Pressure fuel pump failures. There is a BMW SIB (SI B 12 55 06) that deals with symptoms and warranty work procedures. The Engine management PDF file has a great section and schematic of the pump as well as a great explanation of the role of the high pressure fuel system that makes the second generation DI system possible with precise fuel metering and up to 200 bar rail fuel pressure. It really helps to understand the role of the HPP and it's complexity that obviously caused the early pumps (N54's manufactured between 6/06 to 9/06) to be prone to failure.

Before my car's HPP was replaced, I experienced two episodes that were very different from each other. The first incident at 3500 miles was a case of RPM dropping briefly below 600 at idle and engine running very very rough. Since I was at a light when it happened, I pulled over, rebooted (stop engine, restart) and the problem went away.

The second incident happened around 3800 miles. I was coming up a long incline (6% grade over four miles) and the engine felt like a Honda's. It wasn't rough, just no turbo boost. Again a reboot made the problem go away.

Limp home mode is discussed on page 28 of engine management system which includes complete deactivation of the turbochargers via wastegate valves. I believe I experienced this up that incline.

Around page 8 of the Engine Management PDF file, the explanation of Bank 1 & Bank 2blow off valves give a great insight to another major reason for lack of turbo lag beside the bi turbos and because of the DI. The main purpose of the blow off valves are to prevent pumping action and fluid dynamic problems downstream of the throttle body when driver lets go of the gas pedal suddenly, but engine management also uses them for another purpose. When the engine is idling, engine management spools up the turbos but the additional boost is relieved through the blow off valves. When power is demanded, the blow off valves are closed and the boost is already there. Viola, reduced turbo lag. This would not be possible without DI. The intake manifold downstream of the throttle body has only air in it and no gasoline, hence the blow off of compressed air back to the intake system.

There is an ongoing discussion, which I don't know of the resolution about one or two oil coolers in manual vs. auto cars. Picus in Canada is especially ticked. It is interesting that the PDF files make no distinction between oil coolers in manual vs. auto cars. However, they do talk about two gear box oil coolers for the auto as well as a heat exchanger between the radiator and primary gear box oil cooler in auto cars.

Shawn
Phoenix
Appreciate 0
      02-25-2007, 06:47 AM   #20
ibd12nv
Chief Warrant Officer 4
ibd12nv's Avatar
53
Rep
726
Posts

Drives: 335I, E46 M3, X5M
Join Date: Feb 2007
Location: Back in the US

iTrader: (0)

Garage List
2007 E90 335i  [10.00]
Thanks for posting the PDF files. This give me an opportunity to learn the engine before trying to bolt on things like a BOV.
Appreciate 0
      03-11-2007, 10:55 PM   #21
Spazdoc
Major
Spazdoc's Avatar
42
Rep
1,217
Posts

Drives: 2020 C63S, 2001 S4
Join Date: Jan 2007
Location: Earth

iTrader: (9)

Garage List
2007 335i  [0.00]
Good info. One question I have is how is the current 335/N54 engine related to the 328 and older 330 engine? Is the 335 simple a tuned, turbocharged version of the others, or a completely new engine altogether?
Appreciate 0
      03-12-2007, 01:05 AM   #22
JoJoGunn
Private First Class
4
Rep
121
Posts

Drives: ****
Join Date: Dec 2006
Location: FL

iTrader: (0)

Good find,
Thanks
Appreciate 0
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



All times are GMT -5. The time now is 12:08 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