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


Go Back   ZPOST > BMW Z4 Technical Talk > Engine, Exhaust, Drivetrain Modifications
  TireRack

SUPPORT ZPOST BY DOING YOUR TIRERACK SHOPPING FROM THIS BANNER, THANKS!
Post Reply
 
Thread Tools Search this Thread
      01-29-2013, 09:03 PM   #1
Gt4
Captain
Gt4's Avatar
Canada
53
Rep
880
Posts

Drives: 2006 E46 M3 Estoril blue 6mt
Join Date: Jan 2012
Location: Montreal

iTrader: (5)

My custom OEM section 1 cats with EGT & o2 sensors bungs

Just want to share some pics so you guys know how your OEM cats look like without the sheet metal.

Here is what it look like:









I fabricated the bungs. The o2 sensors bungs are Vibrant 45deg bungs. The EGT sensor bung is a M14X1.5 screws (or a VW wheel bolt) that I drilled in the center to a 7.45mm ID, 25mm long.

http://vibrantperformance.com/catalo...dfb81ec55a927d



Here is the final result:





Hope you enjoy!


Last edited by Gt4; 10-27-2013 at 01:34 PM..
Appreciate 0
      01-29-2013, 09:09 PM   #2
kennyfrc
First Lieutenant
kennyfrc's Avatar
18
Rep
376
Posts

Drives: 2008 Z4MC
Join Date: Aug 2010
Location: ATL GA

iTrader: (1)

Did you replace the heat shield?
__________________
Toy: 2008 Silver Z4MC 300WHP/241TQ

Mods: OEM Euro Headers, RPI Scoop

Daily: 2010 Tacoma Double Cab
Appreciate 0
      01-29-2013, 10:37 PM   #3
onebluemcm
Captain
onebluemcm's Avatar
39
Rep
631
Posts

Drives: '07 Z4MC
Join Date: Apr 2010
Location: Richmond, VA

iTrader: (0)

nice thread, nice pics of the system without the shields. I wonder if the mid pipe could be reworked with these cats and followed up by resonators such as AR20s or the like, all in the rearward section of the midpipe?

Nice welding BTW!
Attached Images
 
__________________
<img src=http://i284.photobucket.com/albums/ll30/onebluemcm/RG63_08-1-1.jpg border=0 alt= />
|=.-._.-._.-._.-._.-._.-._.-._.-._.-._.-._.-.=|
Silbergrau A08 / Sepang Brown LSD6 / Carbon Leather 4MY (1 of 3, this combo)
RAC RG63 | Conti EC-DW | GC/Koni-Dinan | Rogue RSM | Arqray | Autosolutions | BMW brace | Pinnacle tint

Last edited by onebluemcm; 01-29-2013 at 10:45 PM..
Appreciate 0
      01-29-2013, 11:58 PM   #4
beta
Lieutenant Colonel
80
Rep
1,663
Posts

Drives: 2006 M Roadster
Join Date: Mar 2011
Location: CA

iTrader: (2)

Wow great job, that looks oem.
__________________
Appreciate 0
      01-30-2013, 05:14 AM   #5
Gt4
Captain
Gt4's Avatar
Canada
53
Rep
880
Posts

Drives: 2006 E46 M3 Estoril blue 6mt
Join Date: Jan 2012
Location: Montreal

iTrader: (5)

No I decided to install wihout the heat shield. I put some exhaust wrap instead
Appreciate 0
      01-30-2013, 05:19 AM   #6
Gt4
Captain
Gt4's Avatar
Canada
53
Rep
880
Posts

Drives: 2006 E46 M3 Estoril blue 6mt
Join Date: Jan 2012
Location: Montreal

iTrader: (5)

Quote:
Originally Posted by onebluemcm View Post
nice thread, nice pics of the system without the shields. I wonder if the mid pipe could be reworked with these cats and followed up by resonators such as AR20s or the like, all in the rearward section of the midpipe?

Nice welding BTW!
It's possible to to a custom S pipe with resonators in it. But the exhaust flow will hit those resonators before the cats (cats are near the X pipe flange)
Appreciate 0
      01-31-2013, 02:25 PM   #7
Jumbosock
Captain
Jumbosock's Avatar
75
Rep
987
Posts

Drives: 2007 M coupe
Join Date: Apr 2011
Location: San Diego

iTrader: (0)

Great job! As an FYI to anyone the Euro cats are twice as long as the North American secondary cats. The euro cats extend almost all the way to the flange and fill out the entire area under the heat shields.
__________________

CSL headers*Euro cats*Arqray exhaust*DKF hangers*Evolve Tune*Genuine CSL rims*10mm Macht Schnell front spacers*modified Hamann bumper*Tekarbon 2X2 CF spoiler*Turner CF grills*AS SSK*KWV3*OEM Strut bar*Rogue RSM*Polyurethane anti-roll bar bushings*Deka ETX30L battery*Nav Video module*front & rear cameras*Ipod module*stubby antenna*R-Dash LED license lights*LED Ziza interior lights
Appreciate 0
      01-31-2013, 05:49 PM   #8
Gt4
Captain
Gt4's Avatar
Canada
53
Rep
880
Posts

Drives: 2006 E46 M3 Estoril blue 6mt
Join Date: Jan 2012
Location: Montreal

iTrader: (5)

Quote:
Originally Posted by Jumbosock View Post
Great job! As an FYI to anyone the Euro cats are twice as long as the North American secondary cats. The euro cats extend almost all the way to the flange and fill out the entire area under the heat shields.
Exact. US cats must be less restrictive than the Euro version in that case.
Appreciate 0
      02-01-2013, 12:27 AM   #9
johanness
Banned
56
Rep
1,739
Posts

Drives: 2008 Z4MC
Join Date: Aug 2010
Location: Seattle, Vancouver

iTrader: (3)

Garage List
Quote:
Originally Posted by Gtfour
No I decided to install wihout the heat shield. I put some exhaust wrap instead
Nice job, however I don't think it's wise running around w/o the heat shield. Is the wrap a temporary thing?
Appreciate 0
      02-01-2013, 04:42 AM   #10
Gt4
Captain
Gt4's Avatar
Canada
53
Rep
880
Posts

Drives: 2006 E46 M3 Estoril blue 6mt
Join Date: Jan 2012
Location: Montreal

iTrader: (5)

Quote:
Originally Posted by johanness View Post
Nice job, however I don't think it's wise running around w/o the heat shield. Is the wrap a temporary thing?
Why? Almost all aftermarket section 1 with cats or not don't have heat shield.
Appreciate 0
      02-02-2013, 01:01 AM   #11
johanness
Banned
56
Rep
1,739
Posts

Drives: 2008 Z4MC
Join Date: Aug 2010
Location: Seattle, Vancouver

iTrader: (3)

Garage List
Quote:
Originally Posted by Gtfour
Why? Almost all aftermarket section 1 with cats or not don't have heat shield.
I'm just thinking about your secondary O2 wires, but it depends how you ran them. Theres not a lot of room and its gonna get HOT, but hope it works out.
Appreciate 0
      02-02-2013, 09:38 AM   #12
Gt4
Captain
Gt4's Avatar
Canada
53
Rep
880
Posts

Drives: 2006 E46 M3 Estoril blue 6mt
Join Date: Jan 2012
Location: Montreal

iTrader: (5)

I have an asbestos wire protector on the o2 sensors
Appreciate 0
      09-15-2013, 09:41 PM   #13
xelerator
New Member
0
Rep
6
Posts

Drives: 2003 E46 M3
Join Date: Mar 2013
Location: SC

iTrader: (0)

I'm looking for a OEM cat section 1, who wants to sell it to me?
Dented heat shield is no problem.
Thanks,
Chris
Appreciate 0
      09-16-2013, 12:07 PM   #14
nekky
Wagon life
nekky's Avatar
Canada
39
Rep
991
Posts

Drives: '16 328d M Sport Touring
Join Date: May 2011
Location: Vancouver

iTrader: (2)

Quote:
Originally Posted by xelerator View Post
I'm looking for a OEM cat section 1, who wants to sell it to me?
Dented heat shield is no problem.
Thanks,
Chris
He is already selling this to me
Appreciate 0
      09-16-2013, 01:20 PM   #15
itdnwiwbp
Major
76
Rep
1,443
Posts

Drives: 330iZHP
Join Date: Jun 2012
Location: Long Beach, CA

iTrader: (10)

Quote:
Originally Posted by Gtfour View Post
I have an asbestos wire protector on the o2 sensors
Where did you get the wire protector. I'd like to go the same route just to make sure everything is ok down below.
__________________
Appreciate 0
      09-16-2013, 01:36 PM   #16
StickMon
My other car is on Mars
StickMon's Avatar
United_States
635
Rep
3,124
Posts

Drives: 2006 MR
Join Date: Feb 2011
Location: Lo-Cal

iTrader: (1)

I've used "Fire Sleeve" for similar applications.
__________________
Warning: May contain traces of nuts.
Appreciate 0
      09-16-2013, 02:42 PM   #17
Gt4
Captain
Gt4's Avatar
Canada
53
Rep
880
Posts

Drives: 2006 E46 M3 Estoril blue 6mt
Join Date: Jan 2012
Location: Montreal

iTrader: (5)

Quote:
Originally Posted by itdnwiwbp View Post
Where did you get the wire protector. I'd like to go the same route just to make sure everything is ok down below.
You can route the wires like this (took the pics in crfine88 build up thread). You don't need to modify the o2 sensors wires, they are long enough if you reroute them on the driver side of the transmission tunnel.





Appreciate 0
      09-16-2013, 03:02 PM   #18
itdnwiwbp
Major
76
Rep
1,443
Posts

Drives: 330iZHP
Join Date: Jun 2012
Location: Long Beach, CA

iTrader: (10)

I was going to do what Jumbosock did in his videos and write up. I noticed he said that due to having just enough wire to reach the post cat locations he was considering a heat shield of some sort since he wasn't able to pin one of the wires up away from the exhaust. I'm just looking for a good product to use. Thanks for the fire sleeve recommendation, StickMon.
__________________
Appreciate 0
      09-16-2013, 03:05 PM   #19
itdnwiwbp
Major
76
Rep
1,443
Posts

Drives: 330iZHP
Join Date: Jun 2012
Location: Long Beach, CA

iTrader: (10)

I have no experience with the stuff but it says its good for up to 500* continuous. The headers and section 1 will be ceramic coated. Is the fire sleeve adequate for the temps produced by our exhaust, even if ceramic coated?
__________________
Appreciate 0
      09-16-2013, 03:56 PM   #20
Gt4
Captain
Gt4's Avatar
Canada
53
Rep
880
Posts

Drives: 2006 E46 M3 Estoril blue 6mt
Join Date: Jan 2012
Location: Montreal

iTrader: (5)

The fire sleeve will be able to support the heat of your section 1. But make sure they are not directly in contact with with the pipe. There is long enough of wires if you route them on the driver side of the transmission tunnel.
Appreciate 0
      09-16-2013, 05:23 PM   #21
itdnwiwbp
Major
76
Rep
1,443
Posts

Drives: 330iZHP
Join Date: Jun 2012
Location: Long Beach, CA

iTrader: (10)

Ok, thanks. Now, one last question for you guys who have been down under there. What size fire sleeve would you buy? Will it be possible to slip it over the O2 sensor and slide it up to the appropriate place on the wire or would it be necessary to slice it and retape it with fire tape?
__________________
Appreciate 0
      09-16-2013, 06:15 PM   #22
beta
Lieutenant Colonel
80
Rep
1,663
Posts

Drives: 2006 M Roadster
Join Date: Mar 2011
Location: CA

iTrader: (2)

If you route it the OEM way, the cables drop down right to where you need them. Take a look at my mod thread as I have lots of pictures.

__________________
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 06:29 AM.




zpost
Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, 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