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Re: Clogged cat?

Hi Huw,
The catalytic converter certainly does reduce CO. I work in R & D of a large
company that designs and manufactures catalyts. The CO reduction we see is
about 99.8 % removal when averaged thru all the phases of the test.  (This
is reducing  percent level CO emissions to less than a hundred ppm). BTW,
once heated after starting, well made catalysts will actually remove 100 %
of the CO an engine makes during regular driving modes.

But they certainly don't make your turbo very happy...or make you fast.

Joel Stetina  91 200tqa,87tq,  79 323i (No Cat, PERIOD).
-----Original Message-----
From: Huw Powell <human@nh.ultranet.com>
To: quattro group <quattro@coimbra.ans.net>
Date: Sunday, January 31, 1999 6:28 PM
Subject: Re: Clogged cat?

>> >  Running without a converter in a modern motor vehicle is against
>> > Federal law, and derives little, if any, HP benefit
>> I was shocked at how much difference the lack of cats makes when driving
>> traffic in Ireland this summer.  Always had that car enthusiasts
>> for that big hunk of metal on my exhaust, until I started noticing how
>> nasty the exhaust from following even a few cars was, and how then a few
>> more cars in traffic meant big CO headaches...  For the first time I am
>> glad we are a hauling those groovy little ceramic screens around.
>the cat doesn't affect CO ...
>Huw Powell
>82 Audi Coupe; 85 Coupe GT