E90Post
 


Evolve Automotive
 
BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N55 Turbo Engine Tuning and Exhaust Modifications - 335i Tuning > N55



Reply
 
Thread Tools Search this Thread
      09-02-2009, 03:38 PM   #23
gqmd
Chemo Doc
 
Drives: e92 335i 6MT
Join Date: Jun 2006
Location: Maryland/DC

Posts: 468
iTrader: (0)

I just have a bad feeling that BMW is going to go all out to make the N55 series as tune-unfriendly as possible. We'll just have to see.
__________________
jet black 335i, 6MT manual, black interior with silver aluminum trim, PP, SP.
gqmd is offline   United_States
0
Reply With Quote
      09-02-2009, 03:44 PM   #24
David1
Colonel
 
David1's Avatar
 
Drives: 09 E92 09 X5
Join Date: Mar 2007
Location: City With No Room For Ludicris Speed!

Posts: 2,543
iTrader: (0)

Quote:
Originally Posted by gqmd View Post
I just have a bad feeling that BMW is going to go all out to make the N55 series as tune-unfriendly as possible. We'll just have to see.
You can be sure of that. They have learned alot in the past couple of years.
__________________
09 335i Coupe LBM - Black Dakota/Glacier aluminum-6spd|Nav|M-Sport|Premium|Logic7|Heated Seats|CA|BMW Performance Suspension & M3 Control Arms|M3 lip spoiler|Avant Garde M510 Wheels
07 335 coupe - Sold
David1 is offline   United_States
0
Reply With Quote
      09-02-2009, 03:55 PM   #25
alq80
Lieutenant
 
alq80's Avatar
 
Drives: E92 335i
Join Date: Dec 2007
Location: PA / Kuwait

Posts: 437
iTrader: (3)

Send a message via MSN to alq80
Quote:
Originally Posted by gqmd View Post
I just have a bad feeling that BMW is going to go all out to make the N55 series as tune-unfriendly as possible. We'll just have to see.
if there's a will, there's a way!
__________________
335i . Montego Blue . HKS Exhaust .
alq80 is offline   United_States
0
Reply With Quote
      09-02-2009, 03:56 PM   #26
scheherazade
Major
 
Drives: 09 GTR (& 93' accord!)
Join Date: Sep 2008
Location: DC metro area

Posts: 1,467
iTrader: (8)

Quote:
Originally Posted by Kelvin1000 View Post
Bigger single Turbo could improve Top End no?
To minimize latency, you'd want to pick the smallest single that will do the job right.

Single doesn't necessitate 'big', just 'big enough'.

If BMW's goal is no-lag, then they need a single turbo that is as small as possible, while still able to produce 300 hp before efficiency collapses.

What they end up choosing will dictate how much more top end you can get out of that setup.

It could be a little more efficient if it's 'just big enough'... or a lot better if it's got plenty of headroom.

I'm basically saying that just because it's a single, we shouldn't assume it's some 30R or whatever.

-scheherazade
scheherazade is offline  
0
Reply With Quote
      09-02-2009, 04:09 PM   #27
cstavaru
Brigadier General
 
cstavaru's Avatar
 
Drives: 2009 335i M Sport Sedan 6MT
Join Date: Aug 2008
Location: Bucharest, Romania

Posts: 3,235
iTrader: (0)

Quote:
Originally Posted by David1 View Post
You can be sure of that. They have learned alot in the past couple of years.
It may be so, but at the same time this engine would not have been such a success without the tuning options.
cstavaru is offline  
0
Reply With Quote
      09-02-2009, 04:37 PM   #28
GreenPlease
Lieutenant Colonel
 
GreenPlease's Avatar
 
Drives: BMW 335i e92
Join Date: Feb 2008
Location: Orlando Florida

Posts: 1,635
iTrader: (2)

Fully variable valve timing systems such as valvetronic work miracles with forced induction and low end response so I'm holding out hope for a "modestly" sized turbo. With that said, the N55 is very likely to be very tune unfriendly.
GreenPlease is offline   United_States
0
Reply With Quote
      09-02-2009, 04:54 PM   #29
kjrulz
Mastermind
 
kjrulz's Avatar
 
Drives: girls krazy
Join Date: Jan 2009
Location: your mother

Posts: 1,361
iTrader: (5)

Quote:
Originally Posted by cstavaru View Post
It may be so, but at the same time this engine would not have been such a success without the tuning options.
i completely agree. would have got something else if it wasn't so easy to tune when my warranty expires.
kjrulz is offline  
0
Reply With Quote
      09-02-2009, 05:13 PM   #30
Eazy-e
Dope-like a pound or a key
 
Eazy-e's Avatar
 
Drives: e82 135i
Join Date: Mar 2008
Location: Diego of the San

Posts: 223
iTrader: (0)

I wonder how durable will the "new" HPFP will be
Eazy-e is offline  
0
Reply With Quote
      09-02-2009, 05:32 PM   #31
SLCGoonski
Brigadier General
 
SLCGoonski's Avatar
 
Drives: 2008 335i
Join Date: Dec 2007
Location: SLC, UT

Posts: 4,221
iTrader: (4)

I've heard rumors of all digital and encrypted communication on the N55...rather than the 'simple' analog communication in the N54. The tuners will be tested...
__________________
SLC Goonski
08 335i e90 TiAg/Black, Premium, Sport, Step, Cold Weather, BMW Perf. shifter/e-brake, M3 lip spoiler, blacklines, aFe intake, VMR 710s, Gloss black vinyl trim, black 3.5" DiMisa tips, Procede V5, ar Design OCC, ETS 5" intercooler (black), MTech wheel, rear bumper, and side skirts, Stett CP, Forge DVs, LUX 5.1, Ground Control Coil-overs, OEM split armrest, Raceland catless DPs, BIM Coded...
SLCGoonski is offline  
0
Reply With Quote
      09-02-2009, 08:13 PM   #32
Kelvin1000
Major
 
Drives: 2008 E92 335i Space Gray
Join Date: Sep 2007
Location: Miami, FL

Posts: 1,190
iTrader: (4)

Quote:
Originally Posted by scheherazade View Post
To minimize latency, you'd want to pick the smallest single that will do the job right.

Single doesn't necessitate 'big', just 'big enough'.

If BMW's goal is no-lag, then they need a single turbo that is as small as possible, while still able to produce 300 hp before efficiency collapses.

What they end up choosing will dictate how much more top end you can get out of that setup.

It could be a little more efficient if it's 'just big enough'... or a lot better if it's got plenty of headroom.

I'm basically saying that just because it's a single, we shouldn't assume it's some 30R or whatever.

-scheherazade
Agreed, but if you look at the pictures, it looks pretty big compared to the little snails. Not to mention, the placement and the fact that its just one Turbo which will help to make it easier to retrofit aftermater Turbos.

Kelvin1000 is offline   United_States
0
Reply With Quote
      09-02-2009, 08:22 PM   #33
GreenPlease
Lieutenant Colonel
 
GreenPlease's Avatar
 
Drives: BMW 335i e92
Join Date: Feb 2008
Location: Orlando Florida

Posts: 1,635
iTrader: (2)

Unless tuners can break valvetronic, all other tuning will essentially be for not.

Quote:
I've heard rumors of all digital and encrypted communication on the N55...rather than the 'simple' analog communication in the N54. The tuners will be tested...
Maybe my idea of a standalone ECU wasn't so over the top after all.
GreenPlease is offline   United_States
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 07:02 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