BMW M3 Forum (E90 E92)

BMW Garage BMW Meets Register Search Today's Posts Mark Forums Read


Go Back   M3Post - BMW M3 Forum > E90/E92 M3 Technical Topics > Engine, Transmission, Exhaust, Drivetrain, ECU Software Modifications
 
GetBMWParts
Post Reply
 
Thread Tools Search this Thread
      04-09-2012, 08:30 PM   #1
eNCore
///M 5light
eNCore's Avatar
United_States
47
Rep
433
Posts

 
Drives: 13 MCB ///M5
Join Date: May 2008
Location: Los Angeles, 626

iTrader: (1)

Do you guys notice a rare light clanking noise under 2k RPM when the car is trying to speed up form a crawl? Can happen anywhere, but maybe more noticeable when you are climbing?

EDIT: It is most noticeable in higher gears. I am pretty sure this is normal and can be heard in all Akra Evo M3s, but since it's not very noticeable most people probably don't heard it. I think the following thread is talking about the same thing http://www.m3post.com/forums/showthread.php?t=477144&highlight=akra+noise.

Put it in higher gears (4, 5, or 6) and give it a bit more gas, you'll probably hear what I am talking about at around 2k RPM.

Last edited by eNCore; 04-10-2012 at 09:34 PM.
Appreciate 0
      04-09-2012, 09:04 PM   #2
THE TECH
BimmerPost Supporting Vendor
THE TECH's Avatar
United_States
157
Rep
13,122
Posts


 
Drives: BPMsport 2012 E92 M3
Join Date: Jun 2011
Location: Kansas

iTrader: (45)

Garage List
Send a message via AIM to THE TECH Send a message via Skype™ to THE TECH
Nope.
__________________
Appreciate 0
      04-09-2012, 09:27 PM   #3
redline9001
Captain
redline9001's Avatar
Canada
7
Rep
656
Posts

 
Drives: E92 M3, MDX, Titan
Join Date: Apr 2011
Location: Calgary, Canada

iTrader: (0)

Nope
__________________
2011 E92 M3 | JEREZ BLACK | EXTENDED BAMBOO NOVILLO | EXECUTIVE PKG | M-DRIVE | EDC | M-DCT
MODS | KW S/O | HRE P40SC | Akra Evo |ESS Akra Tune | BMC drop in | StopTech Trophies | TMS Pulley | LUX V3
Appreciate 0
      04-09-2012, 11:05 PM   #4
edu09
Major
edu09's Avatar
United_States
25
Rep
1,335
Posts

 
Drives: 2013 Frozen Black M3 ESS 650
Join Date: Dec 2010
Location: Doral, FL

iTrader: (4)

Garage List
nope
__________________
2013 M3 E93 | Frozen Black, individual interior black with red stitching, Carbon Leather trim, M Double-clutch Transmission, Enhanced Premium Sound Sys
Mods: ESS VT2 650 SC / Akrapovic GT4 Exhaust / Brembo 365 kit / HRE RB2 wheels / Toyo R888 tires / KW coilover sleeve kit / OSS V4 kit / OEM Frozen Blk Rear Lip Spoiler / BMW Performance Black Grilles / BMW Wind Deflector / FB Vorsteiner Front Spoiler / FB side gills
Appreciate 0
      04-10-2012, 12:02 AM   #5
Giggs
Major
Giggs's Avatar
United_States
23
Rep
1,131
Posts

 
Drives: R8
Join Date: Jul 2008
Location: SoCal

iTrader: (5)

Nope
Appreciate 0
      04-10-2012, 12:22 AM   #6
FrenchBoy
Major
FrenchBoy's Avatar
France
42
Rep
1,376
Posts

 
Drives: '09 E90 M3
Join Date: Mar 2006
Location: Seattle, WA

iTrader: (0)

No. Never.
__________________

2009 E90 M3 | SG | FR | 6Speed | Akrapovic Evo | JRZ RS1 | StopTech Trophy | Cantrell Brake Ducts
Appreciate 0
      04-10-2012, 12:58 AM   #7
quads
Lieutenant Colonel
29
Rep
1,646
Posts

 
Drives: bac mono
Join Date: Apr 2010
Location: racetrack

iTrader: (3)

nope
Appreciate 0
      04-10-2012, 01:04 AM   #8
avex8
Captain
avex8's Avatar
12
Rep
784
Posts

 
Drives: 11 E92 M3, 13 X3 35i, 14 650i
Join Date: May 2011
Location: San Diego

iTrader: (3)

Quote:
Originally Posted by ///M-Turismo View Post
Do you guys notice a rare light clanking noise under 2k RPM when the car is trying to speed up form a crawl? Can happen anywhere, but maybe more noticeable when you are climbing?
something is wrong with your exhaust. Sell it to me
Appreciate 0
      04-10-2012, 01:48 AM   #9
eNCore
///M 5light
eNCore's Avatar
United_States
47
Rep
433
Posts

 
Drives: 13 MCB ///M5
Join Date: May 2008
Location: Los Angeles, 626

iTrader: (1)

Quote:
Originally Posted by THE TECH View Post
Nope.
Quote:
Originally Posted by redline9001 View Post
Nope
Quote:
Originally Posted by edu09 View Post
nope
Quote:
Originally Posted by Giggs View Post
Nope
Quote:
Originally Posted by FrenchBoy View Post
No. Never.
Quote:
Originally Posted by 4sevens.com View Post
nope
http://www.m3post.com/forums/showthr...ght=akra+noise

Switch to a higher gear and give it a little more throttle then you'll hear it!
__________________
13 MCB ///M5

11 - 12 MW E92 ///M3 ZCP

08 - 11 E90 335i

Last edited by eNCore; 04-10-2012 at 03:02 AM.
Appreciate 0
      04-10-2012, 04:02 AM   #10
TomTankslely
New Member
0
Rep
6
Posts

 
Drives: aodi
Join Date: Apr 2012
Location: yop

iTrader: (0)

nope nope..
__________________
Appreciate 0
      04-10-2012, 04:44 AM   #11
TobiasMUC
Second Lieutenant
TobiasMUC's Avatar
Germany
11
Rep
204
Posts

 
Drives: BMW M3 Coupe E92
Join Date: Jul 2010
Location: Munich / Germany

iTrader: (0)

Garage List
2009 BMW M3 E92  [5.00]
Never heard.
Appreciate 0
      04-10-2012, 06:17 AM   #12
Bubbles
Brigadier General
Bubbles's Avatar
Cayman Islands
86
Rep
3,559
Posts

 
Drives: Green Bastard
Join Date: Jun 2007
Location: Bishop Bend

iTrader: (3)

intake resonance?
__________________
Appreciate 0
      04-10-2012, 12:45 PM   #13
1SIKM
Private First Class
1SIKM's Avatar
United_States
1
Rep
196
Posts

 
Drives: 2011 E92 M3
Join Date: Oct 2011
Location: Miami, FL

iTrader: (0)

Never! Not @ all...
__________________
All Thanks 2: Velos Designwerks-Wheels Boutique-IND Distribution-McKennaBMW
Mod List: | ESS VT2-625 | Velos Designwerks Tune | HRE P40S | Brembo 380mm BBK | Akrapovic Evolution Exhaust | KW V3 Coilovers | Vorsteiner GTS3 Front Bumper | Vorsteiner Rear Diffuser 2 | BMW Blue PSW | BMW Performance Spoiler | BMW GTS Door Sills | BMW Performance High Gloss Black Grills & Gills | TiKORE Industries Titanium Lug Bolts | STRI Gauges |
Appreciate 0
      04-10-2012, 01:08 PM   #14
Poofyo101
Major
Poofyo101's Avatar
23
Rep
1,227
Posts

 
Drives: e92 ///M3
Join Date: Apr 2009
Location: NC

iTrader: (9)

Garage List
1988 BMW M3  [0.00]
1988 BMW M3  [0.00]
2012 BMW M3  [0.00]
1990 BMW M3  [0.00]
nope.
__________________
12 E92 M3-AW/FR-20" BBS LM-Painted Reflectors-BMW Gloss Black Grills + Gills-BMW Performance LED Wheel-BMW Carbon Performance Spoiler-Akra Evolution-Stoptech Trophy
Appreciate 0
      04-10-2012, 01:26 PM   #15
Singletrack
4th down; 4th quarter? Renegade.
Singletrack's Avatar
United_States
43
Rep
3,819
Posts

 
Drives: 09 SSII E92 M3; 12 AW X5d
Join Date: Aug 2008
Location: Pittsburgh, PA

iTrader: (3)

Check that the front section is not making contact with anything - from the secondary o2's to the transmission area. The engine has a resonance around 2k that can cause the front section on any exhaust to vibrate. If it isn't installed properly, there is a chance it could be rattling.

I would not suspect the rear section as it is pretty damn hard to screw up that part of the installation.
Appreciate 0
      04-10-2012, 03:42 PM   #16
Dellort_M3
Lieutenant
6
Rep
431
Posts

 
Drives: 2011 E92 M3
Join Date: Dec 2011
Location: Toronto, ON

iTrader: (1)

nope
__________________
2011 Alpine White/Fox Red 6MT E92 M3 | Active Stage 2 w/Meth | KW Clubsport | OSS | Challenge Front Lip | Vorsteiner Type 2 Rear Diffuser and Bootlid | Brembo | Recaro | Akrapovic Slip-On | Challenge Race+ X-Pipe | Vossen CV3 | OEM 359M | TE37SL
Appreciate 0
      04-10-2012, 05:29 PM   #17
Mason3
Private First Class
Mason3's Avatar
United_States
3
Rep
179
Posts

 
Drives: '11.5 E92 M3 and '12 328i
Join Date: Nov 2010
Location: Phoenix, AZ

iTrader: (0)

Garage List
2012 BMW 328i  [4.67]
2011.5 BMW M3  [5.00]
my guess would be a clearance issue as stated above. Heat shield or o2 sensor, etc.

Mine is great no issues.
__________________
2011.5 M3 ZCP
ESS Tuning VT1-535
BBS CH-R 19x9/10.5
Akrapovic Evolution
Appreciate 0
      04-10-2012, 09:28 PM   #18
eNCore
///M 5light
eNCore's Avatar
United_States
47
Rep
433
Posts

 
Drives: 13 MCB ///M5
Join Date: May 2008
Location: Los Angeles, 626

iTrader: (1)

Quote:
Originally Posted by Singletrack View Post
Check that the front section is not making contact with anything - from the secondary o2's to the transmission area. The engine has a resonance around 2k that can cause the front section on any exhaust to vibrate. If it isn't installed properly, there is a chance it could be rattling.

I would not suspect the rear section as it is pretty damn hard to screw up that part of the installation.
Quote:
Originally Posted by Mason3 View Post
my guess would be a clearance issue as stated above. Heat shield or o2 sensor, etc.

Mine is great no issues.
It's more noticeable in higher gears, so it can't be parts making contact because it will then be heard in all gears. I'm pretty sure this is normal and can be heard in all Akra Evo M3s, you guys just aren't paying close enough attention. Read the thread I posted!
__________________
13 MCB ///M5

11 - 12 MW E92 ///M3 ZCP

08 - 11 E90 335i
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
Forum Jump


All times are GMT -5. The time now is 11:07 PM.




m3post
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