E90Post
 


ECS BMW
 
BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N55 Turbo Engine Tuning and Exhaust Modifications - 335i Tuning > Just bought an N55...need help/advice.



Reply
 
Thread Tools Search this Thread
      06-06-2014, 01:13 AM   #1
MAD335i
Enlisted Member
 
Drives: 2011 335i Msport
Join Date: Feb 2012
Location: CA

Posts: 33
iTrader: (0)

Garage List
2008 335i  [0.00]
Just bought an N55...need help/advice.

Hey guy, I had an N54 for a long time and just got an N55.....don't know much about this engine/car. Can anyone hook me up with the good to know info on it? Does the N55 respond as well to performance mods as N54? Thanks
MAD335i is offline   United_States
0
Reply With Quote
      06-06-2014, 01:26 AM   #2
MAD335i
Enlisted Member
 
Drives: 2011 335i Msport
Join Date: Feb 2012
Location: CA

Posts: 33
iTrader: (0)

Garage List
2008 335i  [0.00]
Sorry it's an E90 N55
MAD335i is offline   United_States
0
Reply With Quote
      06-06-2014, 07:30 AM   #3
Akbubba47
Awd crew
 
Drives: 2011 e92 montego blue 335i
Join Date: May 2014
Location: Fort lee nj

Posts: 10
iTrader: (0)

Search search search. There's a million threads
Akbubba47 is offline  
0
Reply With Quote
      06-06-2014, 07:45 AM   #4
Everfly
Lieutenant Colonel
 
Everfly's Avatar
 
Drives: 2012 135i M sport.
Join Date: Apr 2011
Location: Indianapolis

Posts: 1,878
iTrader: (27)

http://www.1addicts.com/forums/showthread.php?t=344186
__________________
Everfly is offline  
0
Reply With Quote
      06-06-2014, 07:50 AM   #5
snaimpally
Second Lieutenant
 
Drives: 2011 335i MT
Join Date: Mar 2014
Location: Austin, TX

Posts: 278
iTrader: (3)

Garage List
2011 BMW 335i  [0.00]
Quote:
Originally Posted by MAD335i View Post
Hey guy, I had an N54 for a long time and just got an N55.....don't know much about this engine/car. Can anyone hook me up with the good to know info on it? Does the N55 respond as well to performance mods as N54? Thanks
Check the marketplace. Dozens of forum sponsors are selling all kinds of N55 performance mods:
http://www.e90post.com/forums/forumdisplay.php?f=204

I have purchased from Mike at N54Tuning.com as he is very responsive. Despite the name, he carries a wide range of N55 mods. Also check Burger Motorsports - N55 JB4, N55 charge pipe, etc. Just exactly how much money do you have to spend?
snaimpally is offline   United_States
0
Reply With Quote
      06-06-2014, 08:01 AM   #6
Sidewinderpb
Chef don't judge
 
Drives: 2011 e92 335i xDrive 6MT
Join Date: Nov 2013
Location: Norwalk, CT

Posts: 710
iTrader: (4)

Modding is modding. There's always some gremlins that will come along with it. Well worth it though. Start with a JB4 ASAP!
Sidewinderpb is offline  
0
Reply With Quote
      06-06-2014, 08:12 AM   #7
JETmn
First Lieutenant
 
Drives: 2011 335i xDrive Msport
Join Date: Apr 2013
Location: Minneapolis

Posts: 376
iTrader: (0)

Turbo on the N55 is quite a bit smaller, so that is the limiting factor. Tune is still a huge jump in power (JB4 is the choice right now or AP protune) but after that you won't see as big of gains. Max on stock turbo seems to be 370-380whp. The pure stage 1 turbo has been showing very good gains and will probably get you close to N54 stock turbo levels.
JETmn is offline   United_States
0
Reply With Quote
      06-06-2014, 08:52 AM   #8
MAD335i
Enlisted Member
 
Drives: 2011 335i Msport
Join Date: Feb 2012
Location: CA

Posts: 33
iTrader: (0)

Garage List
2008 335i  [0.00]
Quote:
Originally Posted by JETmn View Post
Turbo on the N55 is quite a bit smaller, so that is the limiting factor. Tune is still a huge jump in power (JB4 is the choice right now or AP protune) but after that you won't see as big of gains. Max on stock turbo seems to be 370-380whp. The pure stage 1 turbo has been showing very good gains and will probably get you close to N54 stock turbo levels.
Thanks all! I had a few mods on my 08 and had done tons of research about N54s so I'm not completely new. I guess I should have been a little more specific in my question/post. Just heard that I wouldn't come close to the same power with the N55. I have a 5 day return and got worried so what better place to get quick, awesome, answers....
Not sure if there was plus side or neg side to N55 vs N54. Kinda was looking for the answer JETmn gave. Thank you again to everyone!
MAD335i is offline   United_States
0
Reply With Quote
      06-06-2014, 10:01 AM   #9
Subaru335i
Private
 
Drives: 2011 335i 6MT
Join Date: Mar 2014
Location: Minneapolis

Posts: 71
iTrader: (0)

Garage List
2011 335i  [0.00]
Basically what JETmn said. Turbo is the limiting factor compared to N54. It is still a great engine imo.
If you are dead set on 400+whp then return it but I don't really understand all the shit-talk against the N55.
There is a lot of potential in the platform and the benefits of the new engine outweigh the drawbacks by far in my book.

Although I have a track car with a big turbo to satisfy my top end desires
Subaru335i is offline  
0
Reply With Quote
      06-06-2014, 10:58 AM   #10
Knobi
Captain
 
Knobi's Avatar
 
Drives: 2011 E90 335i
Join Date: Jan 2009
Location: Weston, FL

Posts: 398
iTrader: (2)

Garage List
Although the N54 has more potential (power-wise) at the moment, the N55 is a more reliable engine with newer technology including Valvetronic and a state of the art transmission. The N55 is the current production engine in the 1, 2, 3, 4 & 5 series and has lots of potential. There's already a tested Stage 2 turbo upgrade showing 477whp, a Stage 1 showing great results up top in the rev line, and a couple more coming soon. I'm dying to make more power but i would never trade my N55 for a N54. My .02
__________________
2011 BMW 335i (N55) | Jet Black | M-Sport | Premium | Navigation | Comfort Access
JB4 Stage ll FlexFuel | BMW PPK | BMW Performance Exhaust | AA Race FMIC | AR DP | ER CP | BMS Intake
LUX V4 | CF M3 Trunk Spoiler | DEPO | HPB LED Kit | 3M 20% Tint | 10mm/12mm BMS Spacers | BMW Type 193 (Anthracite) | BMW Performance Shift Knob
Knobi is offline   United_States
0
Reply With Quote
      06-06-2014, 12:50 PM   #11
MAD335i
Enlisted Member
 
Drives: 2011 335i Msport
Join Date: Feb 2012
Location: CA

Posts: 33
iTrader: (0)

Garage List
2008 335i  [0.00]
Cool thanks guys! I guess I'll just wait it out for new toys(upgrades) that come out for the N55. I appreciate all the input/info
MAD335i is offline   United_States
0
Reply With Quote
      06-06-2014, 01:04 PM   #12
Manoah
Lieutenant
 
Manoah's Avatar
 
Drives: 335i, LE R1
Join Date: Apr 2011
Location: San Antonio, TX

Posts: 558
iTrader: (0)

N55 hasnt been out as long as N54 (obviously), thats why there isnt a huge aftermarket following for it. tuners have only recently started playing with the turbos to see what they can do. going FBO with JB4 is about the best you can do right now, without dropping 5K+ on new turbo upgrades. given enough time, ive read that the tuners expect as much HP out of the N55 as the N54. ( im not a tuner, thats just what ive read on here.)
__________________
Manoah is offline  
0
Reply With Quote
      06-06-2014, 01:35 PM   #13
Knonsense
Private
 
Drives: 335xi.
Join Date: Feb 2014
Location: Atlanta

Posts: 61
iTrader: (0)

The n54 has twin turbos; the n55 has a dual-turbine, single-compressor turbo, which rotates counter to the standard rotation - this is why the turbo is the primary limitation to power potential. it's a hybrid, which is fantastic for general driveability, but it runs out of steam ~6.5k RPMs. the counter-rotation, along with the turbine being integrated into the exhaust manifold, is why it's such a goddamn bitch to upgrade the forced induction. systems exist, they're expensive.

Cobb + ProTuningFreaks is easiest to reach maximum power, unless you're OK with ethanol, then JB4 is your ticket. I'm relatively sure the JB4 does better with ethanol/methanol, and Cobb does better with octane.

Cooling isn't as big an issue in the n55 and the n54; you won't NEED an oil cooler, but if you're going FBO, do include it in your FBO specs along with charge pipe, intercooler, intake (or at least drop-in filter), dp, and exhaust. there is a companion exhaust mod for the n55 (straight pipes w/in muffler instead of perforated pipes) - it is fucking jawdroppingly sexy sound w/o a catalytic converter.

if you have the 6at, get the Alpina TCU flash; this really isn't even worth discussing. it'll be ~$100 and i'd be fine paying 3-4x that much. makes slush box into zoom box.

also, the n55 doesn't have the carbon caking problem or oil getting everywhere inside the engine problem. walnut blasting is every 85k or so, not 50k. catch cans go 15k miles and catch nothing.
Knonsense is offline  
0
Reply With Quote
      06-06-2014, 02:53 PM   #14
MAD335i
Enlisted Member
 
Drives: 2011 335i Msport
Join Date: Feb 2012
Location: CA

Posts: 33
iTrader: (0)

Garage List
2008 335i  [0.00]
Is the tranny the same as the n54? I bought a nice race clutch that I never used...
MAD335i is offline   United_States
0
Reply With Quote
      06-06-2014, 03:15 PM   #15
Dark_Knight_335
Came to the N55 Darkside
 
Dark_Knight_335's Avatar
 
Drives: 2011 335 E93 M-Sport
Join Date: May 2010
Location: NY/NJ

Posts: 9,602
iTrader: (25)

No the transmissions are different- that's why you can't use the Alpina TCU flash with an N54.
Dark_Knight_335 is online now   United_States
0
Reply With Quote
      06-06-2014, 04:47 PM   #16
MAD335i
Enlisted Member
 
Drives: 2011 335i Msport
Join Date: Feb 2012
Location: CA

Posts: 33
iTrader: (0)

Garage List
2008 335i  [0.00]
Quote:
Originally Posted by Dark_Knight_335 View Post
No the transmissions are different- that's why you can't use the Alpina TCU flash with an N54.
Ok cool thanks.
MAD335i is offline   United_States
0
Reply With Quote
      06-06-2014, 06:11 PM   #17
mike@x-ph.com
BimmerPost Supporting Vendor

 
mike@x-ph.com's Avatar
 
Drives: 2007 e92 335i
Join Date: Sep 2013
Location: Las Vegas

Posts: 7,524
iTrader: (2)

Quote:
Originally Posted by MAD335i View Post
Hey guy, I had an N54 for a long time and just got an N55.....don't know much about this engine/car. Can anyone hook me up with the good to know info on it? Does the N55 respond as well to performance mods as N54? Thanks

Its unfair to compare it to the N54 since the N54 is one of these rare cases where you can get couple hundreds Hp without much effort or money.
But to answer you question yes the N55 reacts good to modding and increased boost.
mike@x-ph.com is offline   United_States
0
Reply With Quote
      06-06-2014, 06:20 PM   #18
JETmn
First Lieutenant
 
Drives: 2011 335i xDrive Msport
Join Date: Apr 2013
Location: Minneapolis

Posts: 376
iTrader: (0)

Quote:
Originally Posted by Dark_Knight_335 View Post
No the transmissions are different- that's why you can't use the Alpina TCU flash with an N54.
Where did you see that? Only the very early 2008's can't do the flash. Other N54's can do it just fine. 6AT N54 and N55 are the same, just a different control module on the early '08's.
JETmn is offline   United_States
0
Reply With Quote
      06-06-2014, 06:29 PM   #19
bk335ilci
Private
 
Drives: 2011 335i Alpine White
Join Date: May 2013
Location: Brooklyn NY

Posts: 69
iTrader: (0)

Quote:
Originally Posted by Dark_Knight_335 View Post
No the transmissions are different- that's why you can't use the Alpina TCU flash with an N54.
The alpina flash works for both n54 and n55
bk335ilci is offline  
0
Reply With Quote
      06-06-2014, 07:25 PM   #20
Dark_Knight_335
Came to the N55 Darkside
 
Dark_Knight_335's Avatar
 
Drives: 2011 335 E93 M-Sport
Join Date: May 2010
Location: NY/NJ

Posts: 9,602
iTrader: (25)

Sorry MAD...I guess I was wrong - somebody done lied to me then, I was told it was incompatible with N54
Dark_Knight_335 is online now   United_States
0
Reply With Quote
      06-06-2014, 11:25 PM   #21
MAD335i
Enlisted Member
 
Drives: 2011 335i Msport
Join Date: Feb 2012
Location: CA

Posts: 33
iTrader: (0)

Garage List
2008 335i  [0.00]
Quote:
Originally Posted by Dark_Knight_335 View Post
Sorry MAD...I guess I was wrong - somebody done lied to me then, I was told it was incompatible with N54
Cool, np... I have a 6sd manual. Hope I can use the clutch I bought for my n54. I'll have to try and call or look it up tomorrow. Thanks for the info guys.
MAD335i is offline   United_States
0
Reply With Quote
      06-09-2014, 09:09 AM   #22
Knonsense
Private
 
Drives: 335xi.
Join Date: Feb 2014
Location: Atlanta

Posts: 61
iTrader: (0)

Quote:
Originally Posted by Dark_Knight_335 View Post
Sorry MAD...I guess I was wrong - somebody done lied to me then, I was told it was incompatible with N54
I think the B3 used the n54.
http://www.alpina-automobiles.com/en...e90919293.html
Knonsense 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 04:36 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