Blacktop
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| posted on 17/8/11 at 01:20 PM |
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Catalytic core material
Does anyone know if you can buy the emission reducing material found inside of a CAT on it's own?
Also is it a rigid material or can it be rolled/re-shaped to a different size?
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cliftyhanger
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| posted on 17/8/11 at 01:33 PM |
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It is a rigid foamy type of thing. Platinum is coated over it, and it may not travel well unprotected.
There are a few places who produce motorsport catalysts, must be a better idea than trying to make one?
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britishtrident
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| posted on 17/8/11 at 01:53 PM |
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It is a rigid very hard brittle ceramic honeycomb with a very fine surface coating with particles of the catalytic material.
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Mr Whippy
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| posted on 17/8/11 at 02:00 PM |
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looking at some of the ones I have bought, there are types that appear to be made from a wound corrogated sheet rather than the orginal solid blocks.
Not that I have dismantled one before but it did look like it was a flexable material. If you are tight for space some are quite small like my
Zafira's that is only about 4 inch's in diameter.
This is the kind of core I have seen, to me this is made of sheet material -
[Edited on 17/8/11 by Mr Whippy]
Fame is when your old car is plastered all over the internet
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MikeRJ
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| posted on 17/8/11 at 04:33 PM |
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My MR2 had a big spiral sheet of corrugated "stuff". However, it wasn't very flexible, bending it would snap it.
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coyoteboy
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| posted on 17/8/11 at 04:37 PM |
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You'll probably find they're hot formed.
The one in my 3sgte was/is a solid honeycomb. No idea what the one in the renault was but it got rattled about and spat out fairly quickly in normal
use, so I'd say cheese.
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atomic
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| posted on 18/8/11 at 12:11 PM |
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There are basically two types. The one used by most oem's is a Ceramic type, which is easily damaged but relatively cheap to manufacture and the
second much more durable but more expensive type is the metal substrate, used in high performance/motorsport applications. This one comes in several
densities.
I purchase my blanks from Blackthorn. You can find more info regarding the different substrates on their website
http://www.blackthorn.eu.com/html/catalytic-converters-substrates.aspx
[Edited on 18/8/11 by atomic]
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