E90Post
 


ECS BMW
 
BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > NA Engine (non-turbo) / Drivetrain / Exhaust Modifications > N51 vs n52 with AA tune



Reply
 
Thread Tools Search this Thread
      04-25-2011, 12:24 PM   #1
joots
Private
0
Rep
58
Posts

 
Drives: e90 328xi
Join Date: Nov 2010
Location: ks

iTrader: (0)

N51 vs n52 with AA tune

Is there any difference between n51 and n52 when tuned with AA? HP and torque gains? Butt o meter gains? Trottle sensitivity?
Appreciate 0
      04-25-2011, 01:44 PM   #2
Wlew
Major
Wlew's Avatar
United_States
22
Rep
1,046
Posts

 
Drives: E90 330i
Join Date: Sep 2009
Location: Charlotte, NC

iTrader: (11)

should be the exact same.
__________________
2006 330i |premium package | Sports package | BMS Power Box | AA Tune | K&N Drop in | Charcoal Delete | Mforce Design Air Scoops | MMW CS Exhaust w/ second cat delete | Resonator Delete | Eibach Pro-kit | Koni Yellows | Mtec fogs | Mtec v2 Angel eyes | M3 Tri-stitched steering wheel | BMW Strut Bar | 19" Avant Garde M310's | Cooper Zeon 2xs | OEM Blacklines | WTB: Dinan High Flow Throttle Body
Appreciate 0
      04-25-2011, 02:04 PM   #3
berserkerx
Private First Class
berserkerx's Avatar
United_States
2
Rep
164
Posts

 
Drives: 2006 330i
Join Date: Jan 2011
Location: Utah

iTrader: (0)

The N52 will have a higher compression still. N52 has a 10.7 while the N51 has a 10. But there was a difference in the head on the N51 like a different combustion chamber shape or something like different sized valves.

If I remember correctly I believe you need to add the 3 stage intake manifold on the N51 where the 330i N52 came with it.
Appreciate 0
      04-25-2011, 04:47 PM   #4
joots
Private
0
Rep
58
Posts

 
Drives: e90 328xi
Join Date: Nov 2010
Location: ks

iTrader: (0)

Quote:
Originally Posted by berserkerx View Post
The N52 will have a higher compression still. N52 has a 10.7 while the N51 has a 10. But there was a difference in the head on the N51 like a different combustion chamber shape or something like different sized valves.

If I remember correctly I believe you need to add the 3 stage intake manifold on the N51 where the 330i N52 came with it.
Does the 328 n52 have the 3 stage intake manifold?
Appreciate 0
      04-25-2011, 05:00 PM   #5
guerilla twang
I do my crosswords in pen.
guerilla twang's Avatar
United_States
8
Rep
751
Posts

 
Drives: OEM+ 330i
Join Date: Feb 2010
Location: KCMO

iTrader: (6)

Quote:
Originally Posted by joots View Post
Does the 328 n52 have the 3 stage intake manifold?
Nope
__________________
GRUPPE TITAN Midwest
Appreciate 0
      04-25-2011, 05:04 PM   #6
PhillyNate
ENTHUSIAST
PhillyNate's Avatar
United_States
25
Rep
2,038
Posts

 
Drives: 2014 Toyota GT-86
Join Date: Apr 2011
Location: Philadelphia

iTrader: (0)

Garage List
The N51 has the 3 stage intake though.
__________________

"what I'm driving here...is an ending." Jeremy Clarkson
2014 Whiteout Toyota GT-86 6mt(Presently enjoying WAY more than anticipated)
2011 Alpine White BMW M3 6mt ZCP Coupe(forced retirement 06/06/14)
2008 Alpine White BMW 328i 6mt Coupe(retired 06/21/11
)
Appreciate 0
      04-25-2011, 08:17 PM   #7
tamster00
Uhh, Hi =)
United_States
2
Rep
279
Posts

 
Drives: 11' E90 335i, 12' Fit Sport
Join Date: Apr 2011
Location: Daly City

iTrader: (2)

Send a message via MSN to tamster00
Quote:
Originally Posted by PhillyNate View Post
The N51 has the 3 stage intake though.
Is the 2008 328i a n52 or n51? And would that have the 3stage intake? I was reading somewhere that my car is a SULEV and it may have it..

Last edited by tamster00; 04-25-2011 at 08:18 PM. Reason: addon
Appreciate 0
      04-25-2011, 08:51 PM   #8
Juan.sidarta
Banned
Indonesia
17
Rep
1,040
Posts

 
Drives: ex-e92
Join Date: Jan 2010
Location: Berkeley, CA

iTrader: (8)

Quote:
Originally Posted by tamster00 View Post
Is the 2008 328i a n52 or n51? And would that have the 3stage intake? I was reading somewhere that my car is a SULEV and it may have it..
Mine is SULEV too, 2007. I think that it is N51, and therefore it should have it. If we do add a stage 3 intake manifold, does it make it much faster than the N52's?
Appreciate 0
      04-25-2011, 09:02 PM   #9
PhillyNate
ENTHUSIAST
PhillyNate's Avatar
United_States
25
Rep
2,038
Posts

 
Drives: 2014 Toyota GT-86
Join Date: Apr 2011
Location: Philadelphia

iTrader: (0)

Garage List
Quote:
Originally Posted by Juan.sidarta View Post
Mine is SULEV too, 2007. I think that it is N51, and therefore it should have it. If we do add a stage 3 intake manifold, does it make it much faster than the N52's?
First off guys, if you have a SULEV 328i you have the N51. The N52 is ULEV. Secondly it's my understanding that EVERY N51 sold in America has the 3 stage intake manifold. My car certainly has it.
__________________

"what I'm driving here...is an ending." Jeremy Clarkson
2014 Whiteout Toyota GT-86 6mt(Presently enjoying WAY more than anticipated)
2011 Alpine White BMW M3 6mt ZCP Coupe(forced retirement 06/06/14)
2008 Alpine White BMW 328i 6mt Coupe(retired 06/21/11
)
Appreciate 0
      04-25-2011, 09:28 PM   #10
tamster00
Uhh, Hi =)
United_States
2
Rep
279
Posts

 
Drives: 11' E90 335i, 12' Fit Sport
Join Date: Apr 2011
Location: Daly City

iTrader: (2)

Send a message via MSN to tamster00
Quote:
Originally Posted by PhillyNate View Post
First off guys, if you have a SULEV 328i you have the N51. The N52 is ULEV. Secondly it's my understanding that EVERY N51 sold in America has the 3 stage intake manifold. My car certainly has it.
So we wouldn't have to buy a 3stage intake manifold, and the only diff is compression, compared to the 330i, am I right?
Appreciate 0
      04-26-2011, 06:54 AM   #11
PhillyNate
ENTHUSIAST
PhillyNate's Avatar
United_States
25
Rep
2,038
Posts

 
Drives: 2014 Toyota GT-86
Join Date: Apr 2011
Location: Philadelphia

iTrader: (0)

Garage List
Quote:
Originally Posted by tamster00 View Post
So we wouldn't have to buy a 3stage intake manifold, and the only diff is compression, compared to the 330i, am I right?
Right. Slightly lower compression to accommodate a different piston crown design. Someone on this board stated that you can get 270hp out of this engine with the right tune and that it's been done. That may be optimistic but I do believe the HP and torque numbers from the N52 high output can be achieved. 255 and 220 respectively.
__________________

"what I'm driving here...is an ending." Jeremy Clarkson
2014 Whiteout Toyota GT-86 6mt(Presently enjoying WAY more than anticipated)
2011 Alpine White BMW M3 6mt ZCP Coupe(forced retirement 06/06/14)
2008 Alpine White BMW 328i 6mt Coupe(retired 06/21/11
)
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
Forum Jump


All times are GMT -5. The time now is 04:30 AM.




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