BMW 1 Series Coupe Forum / 1 Series Convertible Forum (1M / tii / 135i / 128i / Coupe / Cabrio / Hatchback) (BMW E82 E88 128i 130i 135i)
 





 

Post Reply
 
Thread Tools Search this Thread
      12-14-2015, 02:19 PM   #23
AlexR6
Private
AlexR6's Avatar
Italy
20
Rep
80
Posts

Drives: BMW E82 125i
Join Date: Jul 2015
Location: Italy

iTrader: (0)

Quote:
Originally Posted by smellthebeans View Post
Power and torque are increased across the entire range. Intake resonance changes based on engine speed.

The N52 US intake is not optimized at the high end. I assume that's why North American N52s found in the sedans are referred to as Medium Output.

The 3 stage intake with a tune is an excellent modification.
US N52s are referred as medium output because N52s come in different power outputs: 218hp - 230hp - 258/265hp - 272hp

Anyway you are right, 3 stage intake + tune is an excellent mod but catess headers + tune is a little bit better. That's what a local tuner showed me by letting me look at some dyno graph results. He got 264 hp at the crank on a 128i with supersprint exhaust and custom tune.
My 125i with tune is stuck at 260hp with stock exhaust (and in Europe we do not have secondary cats!).

Last edited by AlexR6; 12-14-2015 at 04:32 PM..
Appreciate 0
      12-25-2015, 09:28 AM   #24
smellthebeans
Lieutenant Colonel
smellthebeans's Avatar
United_States
52
Rep
1,572
Posts

Drives: LPCs
Join Date: Dec 2006
Location: Tide Water Region

iTrader: (2)

Garage List
1990 325i  [0.00]
Quote:
Originally Posted by AlexR6 View Post
US N52s are referred as medium output because N52s come in different power outputs: 218hp - 230hp - 258/265hp - 272hp

Anyway you are right, 3 stage intake + tune is an excellent mod but catess headers + tune is a little bit better. That's what a local tuner showed me by letting me look at some dyno graph results. He got 264 hp at the crank on a 128i with supersprint exhaust and custom tune.
My 125i with tune is stuck at 260hp with stock exhaust (and in Europe we do not have secondary cats!).
You also get better quality fuel in Europe than we do in the U.S. In Europe both primary and secondary cats are less restrictive because there is no need to burn off excess sulfur in Europe.

http://www.usatoday.com/story/news/n...rules/5970907/
__________________
Appreciate 0
      02-22-2016, 04:55 PM   #25
Booey1979
Private First Class
4
Rep
126
Posts

Drives: 2010 128i m-sport BBK 2piece
Join Date: Aug 2011
Location: Ventura, Ca

iTrader: (0)

Any place sells the s3 manifold?
Appreciate 0
      03-09-2016, 03:35 PM   #26
louie12345
Enlisted Member
3
Rep
40
Posts

Drives: BMW 128i
Join Date: Oct 2015
Location: Florida

iTrader: (2)

car-part.com i got mine for 260 out the door from an X3 with 24k miles. I was lucky enough find it locally. Plus AA tune is around 400. Or you can new manifold for about 1100.
Appreciate 0
Post 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 02:54 PM.




1addicts
Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2020, 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