Composition of the exhaust manifold catalytic converters
Does anyone know the construction composition of the primary catalytic converters, the one integral to the exhaust manifolds, as shown?
Specifically, are they metallic or are they ceramic? Thanks - DM http://986forum.com/forums/uploads02...1486218904.jpg |
They are a ceramic honey comb which is coated or impregnated with metals such as platinum which fosters the desired chemical reaction to reduce pollutants in the exhaust stream.
|
Interesting, thank you!
So the manifold cats are made of ceramic, while the secondary cats further back are metallic-core based?
|
Quote:
Why are you asking? |
I recently cut open a secondary cat that some guy had tried to gut, apparently using something like a crow bar and a sledge hammer.
These cat cores are made of metal, so that his efforts to break up the core simply bent it all into a metallic lump. Presumably had the core been ceramic, it is brittle enough so to break up into small chunks under such crow bar force. My original question was out of curiosity, simply to wonder if the manifold cats were also made of the same metallic construction. Seems to me that a ceramic core would hold up better under the higher heat exposure so close to the engine. Thanks - DM http://986forum.com/forums/uploads02...1486302931.jpg http://986forum.com/forums/uploads02...1486302952.jpg http://986forum.com/forums/uploads02...1486302972.jpg |
Stealth cat delete pipes :)
|
Funny, I just pulled mine.
Now I understand the "restriction" thing... Next item on the list: high flow exhaust headers! |
Quote:
Both the manifold and the secondary cats are identical in construction materials, and both are made of a non-ceramic metallic honeycomb. So you can't bust a thru hole via brute force, a crowbar, and a sledge hammer. Like someone - not me - tried to do, as shown in the picture which I posted here earlier. DM |
All times are GMT -8. The time now is 05:05 AM. |
Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2024, vBulletin Solutions, Inc.
Content Relevant URLs by vBSEO 3.6.0
Copyright 2024 Pelican Parts, LLC - Posts may be archived for display on the Pelican Parts Website