E90Post
 


 
BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > NA Engine (non-turbo) / Drivetrain / Exhaust Modifications > Upgrading Canadian 323i to Euro 325i



Reply
 
Thread Tools Search this Thread
      12-07-2007, 10:01 AM   #67
epiphone3
Lieutenant Colonel
 
Drives: 2013 BMW X3 35i
Join Date: Oct 2005
Location: Calgary

Posts: 1,647
iTrader: (0)

Quote:
Originally Posted by clairvoyant View Post
The 2006 323i and the 2007 323i have the same components just different hp outputs.
Sorry dude, I am a skeptic. I take bus to work so I don't drive my car during the weekdays, therefore I volunteer to reflash the ECU. Plus, I use my company corporate UPS account to ship the ECU, so I technically have nothing to lose but time trying to figure out how to extract that ECU.

Are you saying, we can squish 231 hp out of these puppies just by reflashing the ECU?
Any link to substantiate your finding? Thank You
Actually the 2006 323i and 2007 323i do not have the same components! They even have a different moniker... 2006 323i has engine moniker "N52" and the 2007-2008 323i have the engine moniker "N52N."

When BMW updated to the new N52N engines, they did a number of changes:
- new engine management
- different pistons
- new exhaust valves with thicker valve stems
- and I think some other minor changes like the black engine cover, etc.

Another example of the N52N motors are those that are in the Z4 3.0si, X3 3.0si, and X5 3.0si. The 3.0si engine makes 262hp and is the N52N version of the 255hp N52 engine from the first E90 330i's. Confusing, I know.

As for getting 231hp out the 2006 323i... I don't think we will make it quite that high because the catalyst in the exhaust manifolds of our Canadian cars is a bit more restrictive than the one from the Eurospec 325i. However, the Euro Software tuners (like G-Power, for example) have gotten about 13hp additional out of the Eurospec 325i (218hp stock) with software tuning... this leads me to believe that our 2006 323i should make it to somewhere just above 220hp with our more restrictive exhaust. I would imagine that the 2007/2008 323i would be tunable to some higher power like 230hp with the European 325i N52N spec software.
epiphone3 is offline  
0
Reply With Quote
      12-08-2007, 07:02 PM   #68
clairvoyant
Major
 
clairvoyant's Avatar
 
Drives: Bavarian Manure Wagon (BMW)
Join Date: Oct 2007
Location: 4519′20″N, 7550′0″W

Posts: 1,033
iTrader: (5)

Garage List
2007 335i  [2.62]
Question Battery blues

Freezing my n*ut$ outside trying to remove that darn ECU.
Good news: ECU is relatively easy to remove.
Bad news: disconnecting the battery terminal is very trivial. It's like a maze removing the battery terminals in the trunk. I don't want to use force. I'll PM you see if you can help. I'll try again tomorrow. The last chance and I hope it works.
Thank You
clairvoyant is offline   No_Country
0
Reply With Quote
      12-08-2007, 07:26 PM   #69
epiphone3
Lieutenant Colonel
 
Drives: 2013 BMW X3 35i
Join Date: Oct 2005
Location: Calgary

Posts: 1,647
iTrader: (0)

Quote:
Originally Posted by clairvoyant View Post
Freezing my n*ut$ outside trying to remove that darn ECU.
Good news: ECU is relatively easy to remove.
Bad news: disconnecting the battery terminal is very trivial. It's like a maze removing the battery terminals in the trunk. I don't want to use force. I'll PM you see if you can help. I'll try again tomorrow. The last chance and I hope it works.
Thank You
I emailed you... do you already have the ECU out? Disconnecting the battery is more of a safety precaution than anything... let me know if I can help ... send me a picture or something.

In the DIY I linked you to from Turner Motorsports, does it say that you must remove the battery? I don't recall. Don't worry about using a bit of force in there... things are pretty robust. Just avoid grounding out either of the batteries poles.
epiphone3 is offline  
0
Reply With Quote
      12-09-2007, 04:20 AM   #70
Wai328
Major
 
Wai328's Avatar
 
Drives: F31/E90 328i/M3
Join Date: Mar 2007
Location: YVR/HKG

Posts: 1,004
iTrader: (1)

Quote:
Originally Posted by epiphone3 View Post
I just looked on realoem.com. It looks to me like there was in fact a European 325i version of the N52N motor that is in the 2007 323i. And it was with Valvetronic still, not with DI.

The Canadian 200hp 323i also definately appears to have the 3-stage intake manifold whereas other national versions don't appear to. They even quote the additional DISA adjuster unit for "National Canada" version.

From this information it looks like 2007 and 2008 Canadian 323i owners should be able to improve their engine power from 200hp to 231+ hp with a software-only modification.

If you are interested in doing this, I have a good Canadian contact for you.
Wai328 is offline   Hong Kong
0
Reply With Quote
      12-09-2007, 10:52 AM   #71
epiphone3
Lieutenant Colonel
 
Drives: 2013 BMW X3 35i
Join Date: Oct 2005
Location: Calgary

Posts: 1,647
iTrader: (0)

Clairevoyant... I just emailed you.
epiphone3 is offline  
0
Reply With Quote
      12-09-2007, 05:43 PM   #72
epiphone3
Lieutenant Colonel
 
Drives: 2013 BMW X3 35i
Join Date: Oct 2005
Location: Calgary

Posts: 1,647
iTrader: (0)

well, Kudos to clairvoyant!

he sent got his ECU out and sent it off today!

woohoo... hopefully this mod works the way I think it will!
epiphone3 is offline  
0
Reply With Quote
      12-11-2007, 09:11 AM   #73
epiphone3
Lieutenant Colonel
 
Drives: 2013 BMW X3 35i
Join Date: Oct 2005
Location: Calgary

Posts: 1,647
iTrader: (0)

Clairvoyant... we need you to write on here the second you get your ECU back!
epiphone3 is offline  
0
Reply With Quote
      12-11-2007, 10:49 AM   #74
clairvoyant
Major
 
clairvoyant's Avatar
 
Drives: Bavarian Manure Wagon (BMW)
Join Date: Oct 2007
Location: 4519′20″N, 7550′0″W

Posts: 1,033
iTrader: (5)

Garage List
2007 335i  [2.62]
Angry Stuck on the US Customs

The ECU hasn't made it there yet. It is still stuck in the US Customs waiting for clearance.
I hate the US Customs wholeheartedly as a US citizen living abroad after spending $200 on Fedex and dilligently pay my tax to US IRS annually.
There is a fundemental reason why I moved to Canada.

Quote:
Originally Posted by epiphone3 View Post
Clairvoyant... we need you to write on here the second you get your ECU back!
clairvoyant is offline   No_Country
0
Reply With Quote
      12-11-2007, 10:58 AM   #75
epiphone3
Lieutenant Colonel
 
Drives: 2013 BMW X3 35i
Join Date: Oct 2005
Location: Calgary

Posts: 1,647
iTrader: (0)

yeah... customs are lame... especially at this time of year!
epiphone3 is offline  
0
Reply With Quote
      12-15-2007, 10:29 AM   #76
epiphone3
Lieutenant Colonel
 
Drives: 2013 BMW X3 35i
Join Date: Oct 2005
Location: Calgary

Posts: 1,647
iTrader: (0)

Clairvoyant says he got his ECU back... can't wait to hear driving impressions from him... although I hear it is pretty wintery in his area right now.
epiphone3 is offline  
0
Reply With Quote
      12-15-2007, 06:27 PM   #77
epiphone3
Lieutenant Colonel
 
Drives: 2013 BMW X3 35i
Join Date: Oct 2005
Location: Calgary

Posts: 1,647
iTrader: (0)

I just got an email from Clairvoyant and he got the car running and everything.

He says that he definately feels more power in his 323i now following the reflash. He figures by a rough count that he is about half way between 6 and 7 seconds to 60mph... that is pretty good sign because the stock 2006 174hp 323i did 0-60 in 7.2 seconds or so at best.

Here is the big question: He wants to do a dyno run and is curious if anyone here knows of a good place in Ottawa that does dyno runs for a reasonable price so he can see what the power looks like. Anyone know of a place???

He says he needs to get it out on the highway to do some more testing once the snow storm blows thru and runs its course.
epiphone3 is offline  
0
Reply With Quote
      12-17-2007, 09:26 PM   #78
vincmo
Second Lieutenant
 
Drives: e90
Join Date: Nov 2007
Location: Montreal

Posts: 227
iTrader: (0)

Are any of you guys are worried about long term damage to the engine if we boost HPs? I'd like to keep my car for at least 5-6 years more and would not like to have to re-do the engine after 3 years cause I tried to gain 10 or 20 hp! What do you guys think?
vincmo is offline   Canada
0
Reply With Quote
      12-18-2007, 04:58 AM   #79
dagjohnsen
Second Lieutenant
 
Drives: BMW E92 325dM Coupe
Join Date: Jun 2007
Location: Norway

Posts: 276
iTrader: (0)

Quote:
Originally Posted by vincmo View Post
Are any of you guys are worried about long term damage to the engine if we boost HPs? I'd like to keep my car for at least 5-6 years more and would not like to have to re-do the engine after 3 years cause I tried to gain 10 or 20 hp! What do you guys think?
I think you underestimate the durability of a BMW

Your car will probably come standard from BMW with 20 hp more soon
dagjohnsen is offline  
0
Reply With Quote
      12-18-2007, 09:14 AM   #80
epiphone3
Lieutenant Colonel
 
Drives: 2013 BMW X3 35i
Join Date: Oct 2005
Location: Calgary

Posts: 1,647
iTrader: (0)

Quote:
Originally Posted by vincmo View Post
Are any of you guys are worried about long term damage to the engine if we boost HPs? I'd like to keep my car for at least 5-6 years more and would not like to have to re-do the engine after 3 years cause I tried to gain 10 or 20 hp! What do you guys think?
If you read the thread, we are basically just getting the engine up to the spec to which it is sold already in Europe by BMW.

If BMW sells this motor with this power in Europe from the factory, I am definately not concerned about reliability... especially when very high quality tuners are used (as were in this case).

Clairvoyant wants to dyno his car... anybody know a good place to go in the Ottawa area? After emailing with him, its sounds to me like this worked so I am likely going to be throwing my hat in the ring for this in the spring time. When I do it, I will for sure do a before and after dyno at the same place.

Oh, and by the way, we are actually look at more like a 40 hp gain here, not 20.
epiphone3 is offline  
0
Reply With Quote
      12-18-2007, 09:47 AM   #81
Excellence
G-STAR
 
Excellence's Avatar
 
Drives: E90 to A5
Join Date: Dec 2006
Location: Richmond, BC

Posts: 1,899
iTrader: (0)

Very nice. 40 more hp gain?! I'm going to do this with my 07' 323i at 200HP. If I'm able to get 20-30 more I would definately be interested. Let me know!!!!
Excellence is offline  
0
Reply With Quote
      12-18-2007, 09:51 AM   #82
epiphone3
Lieutenant Colonel
 
Drives: 2013 BMW X3 35i
Join Date: Oct 2005
Location: Calgary

Posts: 1,647
iTrader: (0)

Quote:
Originally Posted by Excellence View Post
Very nice. 40 more hp gain?! I'm going to do this with my 07' 323i at 200HP. If I'm able to get 20-30 more I would definately be interested. Let me know!!!!
If you look a little bit in the middle of the thread, I had discussed this with Slke46.... 2006 323i should gain about 40+ to get to Eurospec. The 2007 323i should gain at most 30hp going to Eurospec. The 325i was available for a short time as N52KP (or N52N as some call it) and made 231hp from the factory.

I'll pass you my buddy's email... his all canadian website is opening at the end of this month finally.
epiphone3 is offline  
0
Reply With Quote
      12-18-2007, 01:29 PM   #83
vincmo
Second Lieutenant
 
Drives: e90
Join Date: Nov 2007
Location: Montreal

Posts: 227
iTrader: (0)

Quote:
Originally Posted by epiphone3 View Post
If you look a little bit in the middle of the thread, I had discussed this with Slke46.... 2006 323i should gain about 40+ to get to Eurospec. The 2007 323i should gain at most 30hp going to Eurospec. The 325i was available for a short time as N52KP (or N52N as some call it) and made 231hp from the factory.

I'll pass you my buddy's email... his all Canadian website is opening at the end of this month finally.
Keep me in the loop! I'm very interested about this mod. The idea of bringing 174HP to 214HP is very pleasing!

By the way...I don't know if any of you guys heard about it but there seems to be a problem with 323i 2006 engines...apparently the engine head have a problem (ever heard a clacking sound when you start the engine and it's cold? Sounds like a lifter discharge.) My BMW mechanic made me take an appointment at the dealership and if the problem is not solved with minor tweaking, they'll have to replace the engine. Just wanted to share that with you guys cause if you ever ear that kind of sound....you might get a brand new engine for free!

Bad news is that they are going to replace it with another 174HP ...I asked for the new 200HP engine but they said no!
vincmo is offline   Canada
0
Reply With Quote
      12-18-2007, 03:00 PM   #84
epiphone3
Lieutenant Colonel
 
Drives: 2013 BMW X3 35i
Join Date: Oct 2005
Location: Calgary

Posts: 1,647
iTrader: (0)

Quote:
Originally Posted by vincmo View Post
Keep me in the loop! I'm very interested about this mod. The idea of bringing 174HP to 214HP is very pleasing!

By the way...I don't know if any of you guys heard about it but there seems to be a problem with 323i 2006 engines...apparently the engine head have a problem (ever heard a clacking sound when you start the engine and it's cold? Sounds like a lifter discharge.) My BMW mechanic made me take an appointment at the dealership and if the problem is not solved with minor tweaking, they'll have to replace the engine. Just wanted to share that with you guys cause if you ever ear that kind of sound....you might get a brand new engine for free!

Bad news is that they are going to replace it with another 174HP ...I asked for the new 200HP engine but they said no!
The problem you speak of isn't limited to only the 323i 2006 engines. It was pretty much any N52 engine in the 3-series line up (I don't think it was effecting anything in the 2007+ model years). Anyway, it is the infamous metallic ticking noise that showed up on some cars when starting cold, especially. There was a valve lifter bleed procedure that didn't seem to solve the issue... apparently there is a modified cylinder head out for affected units.

I haven't had any such issues with my 323i (knock wood) and it is now 2 years old and has over 40,000 kms on it. I would imagine that you would get a new head and not a new engine.

Vincomo, I can connect you with the guy I know... you may want to wait until the valve tick thing is resolved for you before you consider messing with any software mods, though!
epiphone3 is offline  
0
Reply With Quote
      12-19-2007, 04:04 PM   #85
new2u
First Lieutenant
 
Drives: 2006 X3 3.0i
Join Date: Sep 2006
Location: Vancouver, BC

Posts: 371
iTrader: (2)

I knew there was something wrong with the engine!
(Cold start, metal clicking noise...)
Thanks for sharing info, and I'm too very excited to hear about this possible engine tweaking.
__________________
2006 X3 3.0i / Exterior: .. / Interior: ..
new2u is offline   Canada
0
Reply With Quote
      12-19-2007, 05:13 PM   #86
epiphone3
Lieutenant Colonel
 
Drives: 2013 BMW X3 35i
Join Date: Oct 2005
Location: Calgary

Posts: 1,647
iTrader: (0)

Quote:
Originally Posted by new2u View Post
I knew there was something wrong with the engine!
(Cold start, metal clicking noise...)
Thanks for sharing info, and I'm too very excited to hear about this possible engine tweaking.
PM me if you'd like details. Clairvoyant did it and says he feels the difference so I'd be interested to see what others think.

I still haven't heard if he has found a dyno in Ottawa area yet to test though... however he didn't do the before dyno so we will get a good idea of where he is at but not the full detailed effect.
epiphone3 is offline  
0
Reply With Quote
      12-20-2007, 02:51 PM   #87
epiphone3
Lieutenant Colonel
 
Drives: 2013 BMW X3 35i
Join Date: Oct 2005
Location: Calgary

Posts: 1,647
iTrader: (0)

I just got another email from Clairvoyant... he says his fuel economy has improved a bit...
epiphone3 is offline  
0
Reply With Quote
      12-23-2007, 08:06 PM   #88
clairvoyant
Major
 
clairvoyant's Avatar
 
Drives: Bavarian Manure Wagon (BMW)
Join Date: Oct 2007
Location: 4519′20″N, 7550′0″W

Posts: 1,033
iTrader: (5)

Garage List
2007 335i  [2.62]
Lightbulb I am still a skeptic

This is the dyno used by D&R auto far in Richmond, ON. They use Turner dynapack software, I still can't believe the figures here.
I guess the only way to tell is to run this thing in a closed motor sport training circuit.
I can not go hog wild on the highways specially when po-po/5-O are on which-hunts for speed demons.
By the way, BMW engines are solid diamonds, above 7000 rpm all day no problem if you read some of those endurance races in Europe.
The catch is you have to pour >93 octane
Attached Images
 
clairvoyant is offline   No_Country
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 05:45 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