SV: Stainless Steel Muffler Assembly Inquiry ... FELLOW MEMBERS PLEASE RESPOND

Bo Strander · Jan 29, 2007

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David,
I have had the same experience
as you with stainless systems. Therefore I phoned one of my customers who
produces such systems and asked him about his opinion.
He claims two reasons:
First is that a stainless system will keep the interior much cleaner compared
to a conventional system. Mild steel corrodes ash and debris from the fumes
sticks to the interior and makes a good sound insulation after a few miles. 
Second reason is that stainless
steel is more “solid” and less plastic then mild steel, and therefore
transfers more of the vibrations (sound) to the exterior.
One way to overcome the
problem is to wrap an extra layer of steel over a thin layer of rock-wool or
glass fibre insulation on the outside of the muffler.
I did this with my
muffler, even thou it is a standard mild steel system, and the result is very
obvious!! Less heat in the engine bay and much less noice!


V?nliga h?lsningar / Best
regards
Bo Strander
AK OPTIK AB

-----Ursprungligt
meddelande-----

Fr?n: amphicar-lovers@yahoogroups.com
[mailto:amphicar-lovers@yahoogroups.com] F?r David
Chapman

Skickat: den 28 januari 2007 00:41

Till:
amphicar-lovers@yahoogroups.com

?mne: Re: [amphicar-lovers]
Stainless Steel Muffler Assembly Inquiry ... FELLOW MEMBERS PLEASE RESPOND

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Although I've had a stainless
exhaust system on my Amphi for more than 10 years (custom made by a local
specialist) I probably wouldn't do it again. Stainless makes a lot of sense
under a normal car but I don't think it is really necessary inside an Amphi.
Biggest problem is stainless steel always seemsmore noisy - not sure why
asthe design is the same as a mild steel original.



What I'd like to see isa steel
muffler that issuper quiet and super cool - so it would be much large
diameter - maybe 6 or 7 inches -and much longer. It would have proper welded
brackets but be far enough from the engine so it will work in a 1300. Also a
custom J pipe for the 1300 as well as 1147. Finally the outlet angle should be
correct so it looks original from the outside and also the chrome outside bit
fits properly - and the outside bit works better if it's chrome, as well as not
looking better the chrome doesn't tarnish as badly as stainless from water
splashes. 



David C

Bo Strander · Jan 29, 2007

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<div class="Section1">

David,
I have had the same experience
as you with stainless systems. Therefore I phoned one of my customers who
produces such systems and asked him about his opinion.
He claims two reasons:
First is that a stainless system will keep the interior much cleaner compared
to a conventional system. Mild steel corrodes ash and debris from the fumes
sticks to the interior and makes a good sound insulation after a few miles. 
Second reason is that stainless
steel is more “solid” and less plastic then mild steel, and therefore
transfers more of the vibrations (sound) to the exterior.
One way to overcome the
problem is to wrap an extra layer of steel over a thin layer of rock-wool or
glass fibre insulation on the outside of the muffler.
I did this with my
muffler, even thou it is a standard mild steel system, and the result is very
obvious!! Less heat in the engine bay and much less noice!


V?nliga h?lsningar / Best
regards
Bo Strander
AK OPTIK AB

-----Ursprungligt
meddelande-----

Fr?n: amphicar-lovers@yahoogroups.com
[mailto:amphicar-lovers@yahoogroups.com] F?r David
Chapman

Skickat: den 28 januari 2007 00:41

Till:
amphicar-lovers@yahoogroups.com

?mne: Re: [amphicar-lovers]
Stainless Steel Muffler Assembly Inquiry ... FELLOW MEMBERS PLEASE RESPOND

<div id="ygrp-mlmsg">
<div style="float:left;z-index:1" id="ygrp-msg">
<div id="ygrp-text">



Although I've had a stainless
exhaust system on my Amphi for more than 10 years (custom made by a local
specialist) I probably wouldn't do it again. Stainless makes a lot of sense
under a normal car but I don't think it is really necessary inside an Amphi.
Biggest problem is stainless steel always seemsmore noisy - not sure why
asthe design is the same as a mild steel original.



What I'd like to see isa steel
muffler that issuper quiet and super cool - so it would be much large
diameter - maybe 6 or 7 inches -and much longer. It would have proper welded
brackets but be far enough from the engine so it will work in a 1300. Also a
custom J pipe for the 1300 as well as 1147. Finally the outlet angle should be
correct so it looks original from the outside and also the chrome outside bit
fits properly - and the outside bit works better if it's chrome, as well as not
looking better the chrome doesn't tarnish as badly as stainless from water
splashes. 



David C

SV: Stainless Steel Muffler Assembly Inquiry ... FELLOW MEMBERS PLEASE RESPOND

Bo Strander

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Bo Strander

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