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fitment of cat converter ?

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seagull Compulsive Aussie Vee Dubber

4,979 posts · joined Dec 2003 ·

#246748
is there a lenth where you should place a cat conveter ?? I have all ways done my own thing , just asking all who may know :party

this a lenth from a Y piece if its a flat donk

[Edited on 15-10-2004 by seagull]
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VWCOOL 23 Windows of Awesome

5,158 posts · joined Jun 2003 ·

#246825
as close as possible to the engine/exhaust ports - they like heat
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seagull Compulsive Aussie Vee Dubber

4,979 posts · joined Dec 2003 ·

#246855
ok cheers :beer
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Baja Wes V6 Baja Pioneer

3,119 posts · joined Aug 2002 ·

#247021
yeah, that's right. You should mount it as close as possible to the engine, so straight after your merge.

Catalytic convertors don't actually start working until they've reached the correct operating temperature (which is freakin hot). So the closer to the engine, the quicker it will get up to temp.

When the cat is cold the exhaust gases are much more harmful than when it's hot and operating properly. I've also heard cat's are useless after 1-2 yrs of use anyway. Don't know how true that is, or if it's just a conspiracy theory...
Wes - www.offroadvw.net - 200HP Quad Cam V6 in a VW Baja - with climate control... 🙂
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type2nut Officially Full-On Dubber

223 posts · joined Jan 2003 ·

#247044
I will be running my EJ25 on LPG. Is it still advisable to use a CAT?

seagull Compulsive Aussie Vee Dubber

4,979 posts · joined Dec 2003 ·

#247251
well the fine is $2500.00 with out one !

I post some photos of mine on sunday , looks very nice :bounce
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type2nut Officially Full-On Dubber

223 posts · joined Jan 2003 ·

#247290
$2500 :o :o :o

seagull Compulsive Aussie Vee Dubber

4,979 posts · joined Dec 2003 ·

#247339
the guy at the cat converter shop told me so
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speedster356 Plastic not Classic Racing

1,624 posts · joined Aug 2002 ·

#247399
I've been advised to have the cat placed at the original distance from the engine on the exhaust so as to meet the original emissions when built.
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