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Author Topic: High-Flow versus 3-Way Cat  (Read 965 times)

Offline Ryan Cheung

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High-Flow versus 3-Way Cat
« on: January 15, 2004, 04:14:28 pm »
i want a high flow cat but i am afraid i will exceed HC emission AirCare limits by doing so... i have a 1998 Eclipse Spyder GST... any thoughts?
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Offline Fraser Cassells

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High-Flow versus 3-Way Cat
« Reply #1 on: January 15, 2004, 04:28:41 pm »
The high flow cats work great, they flow tons and I have not heard of anyone failing Aircare as a result of installing one, properly tuned motor being a given as well.

btw- curious if you confused this forum with some sort of dating service?
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Offline Kevin Standeven

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High-Flow versus 3-Way Cat
« Reply #2 on: January 15, 2004, 04:36:15 pm »
Quote from: "Fraser Cassells"
btw- curious if you confused this forum with some sort of dating service?


bwuhaha!


back to topic, what's a 3-way cat?
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Offline Ryan Cheung

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High-Flow versus 3-Way Cat
« Reply #3 on: January 15, 2004, 04:36:38 pm »
u dissing my pic?? haha

its ok, i aint offended
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Offline Ryan Cheung

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High-Flow versus 3-Way Cat
« Reply #4 on: January 15, 2004, 04:45:20 pm »
no gurlies to impress-- oh wellz-- here's another avatar pic of my fave hangout
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Offline Marty van den Bosch

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High-Flow versus 3-Way Cat
« Reply #5 on: January 15, 2004, 04:51:06 pm »
Funny pic

too large tho.
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Offline Ryan Cheung

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How a 3-Way Cat Works
« Reply #6 on: January 15, 2004, 04:53:46 pm »
A catalytic converter is a device that uses a catalyst to convert three harmful compounds in car exhaust into harmless compounds.

The three harmful compounds are:

Hydrocarbons (in the form of unburned gasoline)
Carbon monoxide (formed by the combustion of gasoline)
Nitrogen oxides (created when the heat in the engine forces nitrogen in the air to combine with oxygen)
Carbon monoxide is a poison for any air-breathing animal. Nitrogen oxides lead to smog and acid rain, and hydrocarbons produce smog.
In a catalytic converter, the catalyst (in the form of platinum and palladium) is coated onto a ceramic honeycomb or ceramic beads that are housed in a muffler-like package attached to the exhaust pipe. The catalyst helps to convert carbon monoxide into carbon dioxide. It converts the hydrocarbons into carbon dioxide and water. It also converts the nitrogen oxides back into nitrogen and oxygen.

taken from "http://www.howstuffworks.com/question66.htm"
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Offline Kimyee Lai

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High-Flow versus 3-Way Cat
« Reply #7 on: January 15, 2004, 05:12:20 pm »
Quote from: "Fraser Cassells"
btw- curious if you confused this forum with some sort of dating service?


What the?????  It's not?????  

Back to the cat, I would suggest that if you make allowances for switching back to the stock cat, it won't be a problem regardless.
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Offline John Hartman

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High-Flow versus 3-Way Cat
« Reply #8 on: January 15, 2004, 10:30:59 pm »
with my high flow monolithic cat, I passed aircare with extremely good results. I even had 0.00 on 2 scores.

Course that was with stock injectors, pump, regulator and no SAFC, and only mild MAF work.

we shall see about this year :(
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Offline Aaron Moore

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High-Flow versus 3-Way Cat
« Reply #9 on: January 15, 2004, 10:31:01 pm »
Quote from: "Kimyee Lai"
Back to the cat, I would suggest that if you make allowances for switching back to the stock cat, it won't be a problem regardless.


I agree, I'm a straight pipe kinda guy.  That reminds me, aircare is coming up :evil:
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Offline Ryan Cheung

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High-Flow versus 3-Way Cat
« Reply #10 on: January 17, 2004, 08:24:51 am »
Quote from: "John Hartman"
with my high flow monolithic cat, I passed aircare with extremely good results. I even had 0.00 on 2 scores.

Course that was with stock injectors, pump, regulator and no SAFC, and only mild MAF work.

we shall see about this year :(


what brand of high-flow cat are u using?
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Offline John Hartman

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High-Flow versus 3-Way Cat
« Reply #11 on: January 17, 2004, 01:18:45 pm »
dunno, ask Lowell.

I could crawl under there if you really need me too, but I'm clean now :)
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91 Eagle Talon TSi 5spd awd.  GT-12, TriFlow Cams, 850s, Tial, JIC, Jackal, sticky rubber.
86 Merkur XR4Ti 5spd, rwd, turbo, 91,381km.  Original paint, heated leather. intercooled, big VAM, Full 3" exhaust, Cossie sway bar, 16" tires.
06 Mazdaspeed6 6spd awd, DISI turbo, heated leather HIDs, Corksport, Cobb, Konig, Centric...
2018 VW Golf Alltrack turbo Tornado Red, 6mt, some free mods

Offline Ernie Turner

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High-Flow versus 3-Way Cat
« Reply #12 on: January 17, 2004, 01:52:12 pm »
I have a Buscher high flow cat and i've passed Air Care wit it nicely.  Well that was 2 years ago.  I failed this time cause i was getting a rebuild and i went thru rite after the rebuild and the cat wasn't warmed up enough yet.  You can't use a non-used Cat thru air care.  Won't work.  So i gotta conditional pass.  Should be interesting to see how i go thru this year tho.
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Offline Andreas Zervas

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« Reply #13 on: January 17, 2004, 02:40:23 pm »
Aircare? what's that? :twisted:

i love the sunshine coast
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Offline Jesse Veitch

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High-Flow versus 3-Way Cat
« Reply #14 on: January 17, 2004, 06:01:56 pm »
heh, Vancouver Island too man, anyone who does any modifications to their cars removes the cat pretty quick, and never put it back in = )
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