[W126 Coupe] Cat replacement

[jflyer2 at aim.com]

Terry and Kelly,
I took mine to a muffler shop that I can't name on here, but it was recommended by another local SEC owner. If you want more power, but still want to be legal, look at the new high flow cats from FlowMaster. As for the question of back pressure, I'd ask Jonathan, as he has experimented with different set-ups on his machines.
Long Boat Ket GTG... I'm trying to get a consensus on what weekend in late September everyone would like. Only posted on BenzWorld so far.
Jay

-----Original Message-----
From: Terry Ratliff <Terry at MyMBSEC.com>
To: 'Mercedes Coupes Mailing Lists' <mbcoupes at mbcoupes.com>
Sent: Tue, 7 Aug 2007 11:34 am
Subject: Re: [W126 Coupe] Cat replacement




Hey – Jay – I took my car to a muffler shop to ask about removing the cats. The owner told me he would NOT remove them because of a $10,000 fine for removing them if caught. Also he told me that even though we no longer have inspection stations that Florida Hwy Patrol does check for cats on routine stops. Not sure what the fine is for the driver.

 

I told him I was looking for a better sound from the car. He recommended removing the resonators only and told me under NO circumstances should I use anything but the MB muffler as it was tuned for proper backpressure to assure proper running. I haven’t removed the resonators yet. 

 

When’s our next get together? - Terry

 



Web site: http://MyMBSEC.com 



 




From: mbcoupes-bounces at mbcoupes.com [mailto:mbcoupes-bounces at mbcoupes.com] On Behalf Of jflyer2 at aim.com
Sent: Tuesday, August 07, 2007 11:17 AM
To: mbcoupes at mbcoupes.com
Subject: Re: [W126 Coupe] Cat replacement


 

After taking the cat off of mine, I noticed a slight increase in fuel economy, a very noticeable difference in acceleration, and no difference in noise at idle. However, when floored, there is a moderate increase in sound, but not anywhere near as loud as these ricers with their coffee can mufflers. I'm still running the stock resonators and muffler.
Jay 
'91 560SEC


-----Original Message-----
From: KBF <560sec at comcast.net>
To: 'Mercedes Coupes Mailing Lists' <mbcoupes at mbcoupes.com>
Sent: Tue, 7 Aug 2007 9:32 am
Subject: Re: [W126 Coupe] Cat replacement




Can you take the Catalytic Converter off will the car run OK? And how loud would it be.  Faster I would guess?



 



Thank Kelly



1988 560 sec



 





From: mbcoupes-bounces at mbcoupes.com [mailto:mbcoupes-bounces at mbcoupes.com] On Behalf Of Markus Meyer
Sent: Tuesday, August 07, 2007 8:38 AM
To: Mercedes Coupes Mailing Lists
Subject: Re: [W126 Coupe] Cat replacement





 




Rick,





 





Take a look at the following diagram, does it look like yours?





 





http://www.timevalve.com/cat/us/p19c2.html

Markus Meyer
mfm at meyerprobateproperties.com
www.meyerprobateproperties.com
Meyer Probate & Properties, LLC
484-919-9762











-------- Original Message --------
Subject: Re: [W126 Coupe] Cat replacement
From: Richard Hesek <Richard_Hesek at raytheon.com>
Date: Tue, August 07, 2007 8:16 am
To: mbcoupes at mbcoupes.com

Hello,
My new catalytic converter showed up last night and I have a question
regarding the twin pipe connections at the center muffler.
This is an 87 560SEC US (non-Calif) cat, one pipe from the engine into the
cat and 2 pipes out to the back.

The two pipes out have a different connection to the center muffler. One
is flared and has the 2 bolt flange captivated. The other pipe is straight
and appears to simply slip into the corresponding mate at the center
muffler.
The diagram in job 49-100 looks as though this connection is a
compression type where the seal ring is squeezed between flanges and
compresses down against the pipe.

I s this standard?

Thanks,
Rick Hesek


The MB Coupes Website!
W126 SEC Mailing List
Postings remain property of MB Coupes, L.L.C.






The MB Coupes Website!

W126 SEC Mailing List

Postings remain property of MB Coupes, L.L.C.



size=2 width="100%" align=center> 

Check Out the new free AIM(R) Mail -- Unlimited storage and industry-leading spam and email virus protection.





The MB Coupes Website!
126 SEC Mailing List
ostings remain property of MB Coupes, L.L.C.


________________________________________________________________________
Check Out the new free AIM(R) Mail -- Unlimited storage and industry-leading spam and email virus protection.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://www.pairlist.net/pipermail/mbcoupes/attachments/20070808/2ab70d48/attachment.html>