[W126 Coupe] Cat mods

[Richard Hogarth]

Take off the cats and bring them to a muffler shop and they will be able to
make you thru pipes that will bolt right in. 
- axlehead at bellsouth.net 

-----Original Message-----
From: mbcoupes-bounces at mbcoupes.com [mailto:mbcoupes-bounces at mbcoupes.com]
On Behalf Of Shayegan, Richard
Sent: Thursday, August 25, 2005 11:18 PM
To: Mercedes Coupes Mailing Lists
Subject: RE: RE: [W126 Coupe] Fuel Ratio

That was going to be my next question actually. The cats on my car are bolt
on so it wouldn't be difficult to swap them out with a pipe, then swap the
cat back in for inspection time. Anybody know what dimension stuff I need?
Richard

-----Original Message-----
From: mbcoupes-bounces at mbcoupes.com
[mailto:mbcoupes-bounces at mbcoupes.com] On Behalf Of dolans1 at verizon.net
Sent: Friday, August 26, 2005 12:01 AM
To: Mercedes Coupes Mailing Lists
Subject: Re: RE: [W126 Coupe] Fuel Ratio

Cut the cats off!, Then get a 10:1 euro motor like mine...And mine is a
1986...






>From: "Shayegan, Richard" <rishayegan at davidson.edu>
>Date: Thu Aug 25 22:05:15 CDT 2005
>To: Mercedes Coupes Mailing Lists <mbcoupes at mbcoupes.com>
>Subject: RE: [W126 Coupe] Fuel Ratio

>
>I dunno, fooling around with fuel mixtureI was able to drop a full
second on the 0-60 times so there is definitely powerto be had. I think with
the 86 and later engines your options to eek out freepower are much more
limited than the pre-86 since the pre-86 have basicallymechanical injection
and the computer just adjusts timing by a constant amountfor a given engine
rpm, so if I advance the base timing by 3 degrees, which Ishould have room
to do since the car only asks for 87 and I run 93 I should beable to drop a
few tenths on the 1/4 (I don?t know why I haven?tgotten around to this yet,
I guess because I don?t want to buy a timinglight). But for the sake of
checking my O2 voltage, does anybody know whatports you use to check the O2
sensor voltage on the CIS (no, it?s not thesame as the CIS-E, so Dan?s guide
doesn?t help).
>The question isn?t how can I getmore power by spending gobs of money,
the question is what power can be extractedfor under $100.
>Richard
>?
>From:mbcoupes-bounces at mbcoupes.com
[mailto:mbcoupes-bounces at mbcoupes.com] On Behalf Of John Piekarczyk Jr
>Sent: Thursday, August 25, 200510:09 PM
>To: mbcoupes at mbcoupes.com
>Subject: [W126 Coupe] Fuel Ratio
>?
>I raced 2 stoke?Karts for years. Leaner will make more power, buttoo
lean will sieze the engine. On a 4 stroke too lean will hole a piston.
>?
>? I would stay rich, as long as you pass emisions. On a stockengine
your not going to make a lot more HP by running it lean. But you willruin an
engine.
>?
>? My 560 at 13.7 shows no CO at idle, goes like hell when I get onit.
>?
>? You will not gret more power,by the Lambda, you would need ahole new
program, new computor, new everything.
>? 
>? Put a 119 in like Satish.
>?
>John
>
>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.
The MB Coupes Website!
W126 SEC Mailing List
Postings remain property of MB Coupes, L.L.C.