Which Hi-flow cat to buy (not a pipe with the cat, JUST the cat)
#1
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Which Hi-flow cat to buy (not a pipe with the cat, JUST the cat)
So I already have a catless midpipe, I figured I might as well just buy a highflow cat and get it welded in instead of buying another pipe.
All I know I need to look for a cat with a metallic core, but which one flows really really well, and how does one know the flow (I was reading up on 300/200/100 cells per inch etc, not even sure what that means)
Any help or suggestions would be appreciated
All I know I need to look for a cat with a metallic core, but which one flows really really well, and how does one know the flow (I was reading up on 300/200/100 cells per inch etc, not even sure what that means)
Any help or suggestions would be appreciated
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#2
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I was thinking the same thing. Why but a full high flow cat when you can just buy a mid pipe and have a high flow cat welded in at a much lower cost. all you'd have to deal with are the O2 bung locations.
Magnaflow if you want to go cheap. A metallic cat wil last longer but cost a $#!7 ton more. You wcould also see what a muffler shop has. SOmetimes they can get high quality stuff if you ask for it.
Magnaflow if you want to go cheap. A metallic cat wil last longer but cost a $#!7 ton more. You wcould also see what a muffler shop has. SOmetimes they can get high quality stuff if you ask for it.
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Well I already have an O2 bung on my midpipe...so I really just need a cat.
I'm trying to find out brands of metallic cats, I don't want magnaflow if I need to keep replacing it =/
I'm trying to find out brands of metallic cats, I don't want magnaflow if I need to keep replacing it =/
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Keef: magnaflows are ceramic...looking or metal. sorry :/
TeamRX8: i am always willing to save up more and spend more if i feel the product has qualities that make it worth it
TeamRX8: i am always willing to save up more and spend more if i feel the product has qualities that make it worth it
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#9
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I am looking at the Random Technology Metal Matrix Cats (~$200USD), as well as the Metalcat (no idea on price)
But any others would be awesome.
Like I said, if the $700 cat from europe meets all emissions, out performs the other cats (depends on my whp goals I assume) it would be worth it to get it. I have until school ends til decide (because until then I have almost 0 time to do it)
But any others would be awesome.
Like I said, if the $700 cat from europe meets all emissions, out performs the other cats (depends on my whp goals I assume) it would be worth it to get it. I have until school ends til decide (because until then I have almost 0 time to do it)
Last edited by Daemos; 01-24-2008 at 07:12 PM.
#10
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What I use is a german touring car FIA racing cat that can handle 2000 degF, but with today's crappy exchange rate and the current cost of platinum it's probably more like a $1000+ now compared to when I bought mine in early 2005. So sorry, I just didn't consider the time lapse difference. I've never had any emissions issues with it, but it's not certifed as a street cat per se. IMO none of the cats being sold for the RX-8 are either, at least not per a strict interpretation of the EPA regulations.
How good a cat is dependent on it's materials. The materials needed to sustain high temperatures are expensive. The precious metals used for the gas conversion process; platinum, rhodium, etc. are also very expensive. The heavier the precious metal coating, the better the life and conversion quality, but also the more expensive it is to make. You have to pay to play if you want a quality cat converter.
I ran mine at 14.5 - 14.9 AFR under WOT for quite a while without issue. That said, with improper tuning you can burn up any cat, but a cheap cat will simply burn up sooner and easier. Even the OE cat won't take 1600 degF for very long under WOT conditions.
How good a cat is dependent on it's materials. The materials needed to sustain high temperatures are expensive. The precious metals used for the gas conversion process; platinum, rhodium, etc. are also very expensive. The heavier the precious metal coating, the better the life and conversion quality, but also the more expensive it is to make. You have to pay to play if you want a quality cat converter.
I ran mine at 14.5 - 14.9 AFR under WOT for quite a while without issue. That said, with improper tuning you can burn up any cat, but a cheap cat will simply burn up sooner and easier. Even the OE cat won't take 1600 degF for very long under WOT conditions.
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Magnaflow does make metallic cats. No info on cell count though. You may want to call and then post info here.
http://www.car-sound.com/02product/u...al/599spun.asp
http://www.car-sound.com/02product/u...al/599spun.asp
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I am looking at the Random Technology Metal Matrix Cats (~$200USD), as well as the Metalcat (no idea on price)
But any others would be awesome.
Like I said, if the $700 cat from europe meets all emissions, out performs the other cats (depends on my whp goals I assume) it would be worth it to get it. I have until school ends til decide (because until then I have almost 0 time to do it)
But any others would be awesome.
Like I said, if the $700 cat from europe meets all emissions, out performs the other cats (depends on my whp goals I assume) it would be worth it to get it. I have until school ends til decide (because until then I have almost 0 time to do it)
Team: Give up the manufacturer of your cat. I would like to talk with them.
Last edited by slavearm; 01-28-2008 at 10:15 AM.
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Am I really a tool? HJS and about 12 other manufacturers are listed on that search.
Not to mention, I have no idea which model he ordered, since they don't make just one part.
Results 1 - 10 of about 8,820 for FIA catalytic converter. (0.17 seconds
Not to mention, I have no idea which model he ordered, since they don't make just one part.
#18
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Well, I did my own search and came up with this: http://www.davesport.com/cgi-bin/davesport/DCAT100.html
It would be interesting to see a test of this one.
It would be interesting to see a test of this one.
#20
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Well, I did my own search and came up with this: http://www.davesport.com/cgi-bin/davesport/DCAT100.html
It would be interesting to see a test of this one.
It would be interesting to see a test of this one.
wish they had the dimentions of it..
here is the magnaflow.
http://www.performance-curve.com/ind...OD&ProdID=1212
i am going to have to add one soon...
i guess i am going to be the beta tester for one..
beers
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#21
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The ad does say "Specify exhaust tubing size."
I think the Magnaflow is a 300 cpi cat. It wouldn't be as free flowing as the 100 cpi. Team's cat was a 100 cpi.
here is the magnaflow.
http://www.performance-curve.com/ind...OD&ProdID=1212
i am going to have to add one soon...
i guess i am going to be the beta tester for one..
beers![Beer](https://www.rx8club.com/images/smilies/beer.gif)
http://www.performance-curve.com/ind...OD&ProdID=1212
i am going to have to add one soon...
i guess i am going to be the beta tester for one..
beers
![Beer](https://www.rx8club.com/images/smilies/beer.gif)
#23
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I emailed and recieved a reply about this cat.
I've actually sold several to rotary guys. I unfortunately have no additional facts on the cats. The manufacturer doesn't provide them. I can tell you anecdotally that my rally customers are getting several seasons on them using full anti-lag, which also raises exhaust temperatures to ridiculous levels. The farther back you can place the cat the better though - both for flow and for longevity.
Best regards,
Dave LaTourette
Davesport, LLC
Street Race Off-Road
Vehicle Preparation and Tuning
www.davesport.com
ph. 425-888-4444
fax 425-888-6444
Best regards,
Dave LaTourette
Davesport, LLC
Street Race Off-Road
Vehicle Preparation and Tuning
www.davesport.com
ph. 425-888-4444
fax 425-888-6444
#25
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well i am falling on the grernade on this one.. the davenport one will be delivered mar 3. hope to have it on by the end of that week..
it is supposedl to be a bit different that the one in the photo.. as they have changed something..
will let you know how it goes..
beers
it is supposedl to be a bit different that the one in the photo.. as they have changed something..
will let you know how it goes..
beers
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