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 :)

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.

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 =/

Are you willing to spend $700 for the best?

why don't u try mazsport, i think they have a cat, not sure if its high flow

Or 50 bucks for a new magnaflow one I have sitting in my garage...

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 :)

yea i want a high flow too SUPERCAT?

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)

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.

yikes $1000 on a cat =/ that would be painful =/

after you go through several lower priced cats you may develop a different viewpoint on the value of it

I had my doubts initially, but would do it again

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/universal/599spun.asp

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)

Melted both. Enjoy. The random lasted about 5 months, the Metal cat about 3 weeks.

Team: Give up the manufacturer of your cat. I would like to talk with them.

yikes $1000 on a cat =/ that would be painful =/

ask mazda how much they're selling their stock cat for.

Team: Give up the manufacturer of your cat. I would like to talk with them.

Stop being a tool and google "FIA catalytic converter" He's given you ALL the info you need.

Am I really a tool? HJS and about 12 other manufacturers are listed on that search.


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.

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.

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.

call billy boat racing and see if they carry the cat or if they can get it.. they are listed as the usa distributer for it...

btw, team did not get it there..

beers :beer:

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.

good find,

wish they had the dimentions of it..

here is the magnaflow.

http://www.performance-curve.com/index.asp?PageAction=VIEWPROD&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:

good find,

wish they had the dimentions of it..

The ad does say "Specify exhaust tubing size."

here is the magnaflow.

http://www.performance-curve.com/index.asp?PageAction=VIEWPROD&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: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.

$138 = junk for a rotary application

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

not better for emissions though :rolleyes:

there is no US distributor for what you need ...

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 :beer:

My advice, go further back than the stocker.

My advice, go further back than the stocker.


yep,

got that covered.

beers :beer:

Awesome :) Let us know how that one goes Swoope :)

Interesting swoope make sure you post some pics up

Hey Swoope, did you get it yet?

yep,

it is small and well for sure 100 cell count.. it is going to be interesting.. dont expect anything to happen till the weekend after next..


beers :beer:

If that thing does work, I'll be cutting up a midpipe.

Hey swoope I am sure you thought about this, but when I was under my car I thought about something.... don't go back too far. I am not sure you want that cat sitting right next to the gas tank either.

Whats wrong wit the RP super cat?

Whats wrong wit the RP super cat?

cell count.

beers:beer:

Hey swoope I am sure you thought about this, but when I was under my car I thought about something.... don't go back too far. I am not sure you want that cat sitting right next to the gas tank either.

dee dee dee.

no it will go back as far as the stock o2 sensor will reach.. another foot or 3 will not make that much difference...

beers :beer:

Oh! can you take pictures and post them? :) (with measurements too) if you have time :)

Thanks

Has anyone checked with random technologies about their metal matrix racing cats?

I believe canzoomer and SR used them in their midpipes without success - but I though both of them were using the ceramic cats instead of metal...

I munched mine pretty quick. It was nice the way the element broke loose and then welded itself to the back of the chamber effectively blocking almost all of the flow.

I munched mine pretty quick. It was nice the way the element broke loose and then welded itself to the back of the chamber effectively blocking almost all of the flow.

O_o nice self welding material

moving it too far will cause other problems, within a reasonable range won't make much difference temp wise

I recently posted the info on my cocktail shaker (what swoope calls it :p: )

http://www.rx8club.com/showthread.php?t=139860

I know where you can buy plug & play O2 sensor harness extensions

moving it too far will cause other problems, within a reasonable range won't make much difference temp wise

I recently posted the info on my cocktail shaker (what swoope calls it :p: )

http://www.rx8club.com/showthread.php?t=139860

I know where you can buy plug & play O2 sensor harness extensions

very expensive hi temp cocktail shaker!!!! :)

beers :beer:

Any updates swoope?

photos.

right now it might be a week or two. i think i am going to not just replace what i have with this..

a new double secret probation center section might be made.

will let you know..

beers :beer:

Has anyone checked with random technologies about their metal matrix racing cats?

I believe canzoomer and SR used them in their midpipes without success - but I though both of them were using the ceramic cats instead of metal...

For reference I did talk with Random Tech and they don't want to touch our cars with any of their products with a 10 1/2 foot pole... they don't like how rich and hot our cars run at all :eyetwitch

For reference I did talk with Random Tech and they don't want to touch our cars with any of their products with a 10 1/2 foot pole... they don't like how rich and hot our cars run at all :eyetwitch

At least they are saying that now. When I talked with them a couple years ago they swore up and down their cat would last and last and last in our car. Didn't take me long to turn it into a useless heap.

*bump* updates? I want to buy this...hopefully it's durable...

dropped it off at the shop doing the work on fri. it is getting a shinny resonator to go with it..

hope to pick it up friday.

beers :beer:

I'm getting itchy to order one...haha...

dropped it off at the shop doing the work on fri. it is getting a shinny resonator to go with it..

hope to pick it up friday.

beers :beer:

If you get your custom unit back from our buddy before I get my order - you owe me a shot of Ultimate when I'm down there - whenever that will be that is...

my money is on melted and failed

I hope not, I would like to see it's condition after a thousand miles.

my money is on melted and failed

i would tend to agree. but who knows..


beers :beer:

Any update yet?

think we are waiting on silencers.. :)

beers :beer:

sounds like you should have ordered the silencers from the US and the cat from Europe instead :lol:

I've gone through three different Random Tech units...now they don't want to talk to me when I phone ;)

in testing..

beers :beer:

I just got a new midpipe supposedly with a 3" high-flow 5zigen cat. The supplier told me that his cost was 400$ and it was special order from Japan. I got a three year warranty so I'm curious to see how long it will last.

I just got a new midpipe supposedly with a 3" high-flow 5zigen cat. The supplier told me that his cost was 400$ and it was special order from Japan. I got a three year warranty so I'm curious to see how long it will last.

pm

beers :beer:

I just got a new midpipe supposedly with a 3" high-flow 5zigen cat. The supplier told me that his cost was 400$ and it was special order from Japan. I got a three year warranty so I'm curious to see how long it will last.

Care to share more details? Where did you get it, type of cat, etc? I'm a big fan of 5Zigen's products (minus the big heavy wheels).

I'm still waiting for the dude to email me the specs then I will post the details. I tried to look it up at the 5zigen website but couldn't find it. I guess it is an 'exoticspeed' midpipe product that comes with a resonator and a cat they get from 5zigen. Hopefully he sends me the specs soon.

Anyways, it quieted down my exhaust a tiny bit and took some smell away. I also switched from the exoticspeed dual muffler catback to a big single one.

btw,

did 198 whp on the dyno yesterday with it on...

beers :beer:

moving it too far will cause other problems, within a reasonable range won't make much difference temp wise

I recently posted the info on my cocktail shaker (what swoope calls it :p: )

http://www.rx8club.com/showthread.php?t=139860

I know where you can buy plug & play O2 sensor harness extensions

team,

a pm with the pnp o2 ext harness extentions would be helpful.

beers :beer:

anyone know what cat pettit is using with their stage II CS supercharger?

btw,

did 198 whp on the dyno yesterday with it on...

beers :beer:Is this with the cat that I pointed out? How many miles are on it now, if it is?

Is this with the cat that I pointed out? How many miles are on it now, if it is?

yep,

not many. ~ 300. did well on dyno.. :)

as i said it is still in the testing stage.. so far so good.

am going to pull it at 1k miles. and look and see how it is doing. hope to put a track day on it mid july.


beers :beer:

anyone know what cat pettit is using with their stage II CS supercharger?

i never got an answer from moon on that. maybe someone could put up a photo of it!

beers :beer:

I'll be welding a Dynatech metal substrate catalytic into a TurboXS race pipe this week. Will post results.

I'll be welding a Dynatech metal substrate catalytic into a TurboXS race pipe this week. Will post results.

photos of cat? please!! :) before install.

where did you get it.. it is sooooooooooo nice to have a cat back on my car!

beers :beer:

photos of cat? please!! :) before install.

where did you get it.. it is sooooooooooo nice to have a cat back on my car!

beers :beer:

This is it:

http://www.afabcorp.com/AFCO_Dynatech_USbrake/merchant.mvc?Screen=CTGY&Store_Code=Dynatech&Category_Code=Cat-conv

3" unit:
http://www.afabcorp.com/AFCO_Dynatech_USbrake/merchant.mvc?Screen=PROD&Store_Code=Dynatech&Product_Code=79-400300&Category_Code=Cat-conv


You can get it at Summit or Jegs.


We'll see how it goes.

Here's a pic of the cat. It's the best I could do while I was at the gas station, but if I get a chance to get my car up again, I'll take a better one.

sweet this thread lives! lets get some durability results =)

interested on results 2!!

team,

a pm with the pnp o2 ext harness extentions would be helpful.

beers :beer:


recently bought one from their online store, nice quality

http://www.casperselectronics.com/mm5/merchant.mvc?Screen=CTGY&Store_Code=CEI&Category_Code=MAZDA

Dynatech is low cost which is a good thing because you'll need to change it often ...

recently bought one from their online store, nice quality

http://www.casperselectronics.com/mm5/merchant.mvc?Screen=CTGY&Store_Code=CEI&Category_Code=MAZDA

Dynatech is low cost which is a good thing because you'll need to change it often ...

Based on your experience with it?

recently bought one from their online store, nice quality

http://www.casperselectronics.com/mm5/merchant.mvc?Screen=CTGY&Store_Code=CEI&Category_Code=MAZDA

Dynatech is low cost which is a good thing because you'll need to change it often ...


wow,

thx mark..

that solves the issue at hand..

beers :beer:

Based on your experience with it?


dont feel bad..

i think my project is doomed, but i gave it a whirl, but so far so good.. so far is survived the dyno...

the rotary is a cat killer.. :)

beers :beer:

dont feel bad..

i think my project is doomed, but i gave it a whirl, but so far so good.. so far is survived the dyno...

the rotary is a cat killer.. :)

beers :beer:

Why is your project doomed? O2 bung location affecting your sensor readings?

As for Team, his "if it ain't expensive and hard to source- it's crap" attitude applies for most everything- from endlinks to coilover to exhaust component selection. Reminds me of the Mike Myers SNL "Welcome to All Things Scottish - if it's not Scottish, it's craaaapp!!" skits. Just substitute "Scottish" with "used by TeamRX8." :lol:

Like I said, I'm willing to try the Dynatech cat out to see how it holds up. Dynatech makes decent products which I'm familiar with (coming from the LS1 world). If it works, it works. If it fails, I'll post up the failure.

ah,

smart like tuna, read between the lines.

the truth is i doubt like team anything at that price point will hold up.

i have not seen photos of the core of what your are using.. but what is in mine is very open... as the dyno showed..

the hi flow cat i had before lasted about 20k miles, and was not so hi flow..

as to the o2 bung. i am thinking outside the box.. :)

would love to see a photo of the core of your cat.

beers :beer:




Why is your project doomed? O2 bung location affecting your sensor readings?

As for Team, his "if it ain't expensive and hard to source- it's crap" attitude applies for most everything- from endlinks to coilover to exhaust component selection. Reminds me of the Mike Myers SNL "Welcome to All Things Scottish - if it's not Scottish, it's craaaapp!!" skits. Just substitute "Scottish" with "used by TeamRX8." :lol:

Like I said, I'm willing to try the Dynatech cat out to see how it holds up. Dynatech makes decent products which I'm familiar with (coming from the LS1 world). If it works, it works. If it fails, I'll post up the failure.

ah,

smart like tuna, read between the lines.

the truth is i doubt like team anything at that price point will hold up.

i have not seen photos of the core of what your are using.. but what is in mine is very open... as the dyno showed..

the hi flow cat i had before lasted about 20k miles, and was not so hi flow..

as to the o2 bung. i am thinking outside the box.. :)

would love to see a photo of the core of your cat.

beers :beer:

http://home.att.net/~carlos.ramirez1/wsb/media/116212/site1183.jpg


Here's a photo of the Dynatech catalytic. Its core is rather standard. If I get 20K miles out of it, I'm a happy man.

Where did you have your O2 sensor mounted? I'm going to try to mimic the RP Supercat pipe's cat and O2 sensor location with my setup (though anything other than stock O2 sensor to cat to header collector location relationship is less than ideal).

http://rx7.com/store/rx8/images/rx8supercat_large.jpg

How well does it tone down the sound and smell?

http://home.att.net/~carlos.ramirez1/wsb/media/116212/site1183.jpg


Here's a photo of the Dynatech catalytic. Its core is rather standard. If I get 20K miles out of it, I'm a happy man.

Where did you have your O2 sensor mounted? I'm going to try to mimic the RP Supercat pipe's cat and O2 sensor location with my setup (though anything other than stock O2 sensor to cat to header collector location relationship is less than ideal).

http://rx7.com/store/rx8/images/rx8supercat_large.jpg

yea,

if you could send me a photo big style to my screen name@gmail.com of the inside.

but from the photos you have flow is going to be an issue..

if you go back in this thread a bit you will see a big difference.

but who knows what will live!!

beers :beer:

As for Team, his "if it ain't expensive and hard to source- it's crap" attitude applies for most everything- from endlinks to coilover to exhaust component selection. Reminds me of the Mike Myers SNL "Welcome to All Things Scottish - if it's not Scottish, it's craaaapp!!" skits. Just substitute "Scottish" with "used by TeamRX8." :lol: You have to remember, Team is a hard core racer. Price isn't an object, if it will improve your performance enough to beat the other guys. I have the same mentality. I just don't have a fat checkbook to support it.

I'm afraid in this instance you either pay up front...or pay later when they burn out and you end up buying the expensive one anyway.

If you are price conscious...run without one..or gut a cheap one so it looks like there is one..and put up with the smell

You have to remember, Team is a hard core racer. Price isn't an object, if it will improve your performance enough to beat the other guys. I have the same mentality. I just don't have a fat checkbook to support it.



Apologies on my end to Team, alnielsen, and to the forum for anything I may have written which is not in character with the forum's manner.

Carlos.

More than two months have passed.

Swoope and SouthFL, how are your cats holding up?

just passed 4k miles. so far so good.

testing happens at 5k miles..

beers :beer:

I'd question whether it actually flows anymore than the factory cat converter :dunno: it looks small and the lack of tapering transistion isn't going to help

I'd question whether it actually flows anymore than the factory cat converter :dunno: it looks small and the lack of tapering transistion isn't going to help

http://www.rx8club.com/showthread.php?t=136242&page=3

:)

beers :beer:

well it ain't no cocktail shaker for sure :lol2:

subscribing for future use.

didn't Slavearm try the Dynatech and burnt it out rightaway?

anymore updates?

anymore updates?

getting close to 5k miles. pm works!

beers :beer:

So it's been a few months...just bumping to see for updates so hopefully the whole rx8 community can learn =D

Thanks for the bump. I didn't bookmark the website I found that cat at.

update.

over 10k miles.. 8 20 min track sessions. seems to still be going strong.. :)

sorry i was offline for a couple of days.

beers :beer:

^whoa so this sub $150 cat could be the wondercat we're looking for?

maybe.

but it is mounted in a very unconventional way.. and until i pull the mid pipe / cat i cant say for sure. thought i was going to happen this weekend.. but i have no garage and my tranny is not going to get changed...

but i have no cel.. and everything is running fine.. power is down a bit, but that is a motor / compression issue. am working on it.

i would say if you have a midpipe. well stick it in.. :)

beers :beer:

just wondering how are your guys cats holdong up

barely
http://i274.photobucket.com/albums/jj278/xxdozer32/catholdingon.jpg

http://www.myrockyhill.com/images/Cat-holdup.jpgjust wondering how are your guys cats holdong up

just wondering how are your guys cats holdong up


post 100.

beers :beer:

swoope: Any pictures of your unconventional mounting?

backwards.

send pm.


beers :beer:

for those that have been pming me about this, if you have not got an update about this send me a pm..

beers :beer:

for those that have been pming me about this, if you have not got an update about this send me a pm..

beers :beer:


:squint:

post it up :dunno:

23 k miles.

7 track days. one private, lots of time..

still going strong for the little cat that could..

mounted non conventional.

beers :beer:

is it OK if I use salt & pepper with eating my hat?

is it OK if I use salt & pepper with eating my hat?

nope,

i think it is related to what you got.. the borescope of the front at 18k miles was shocking.. not perfect on the front side, but really, really close.

but you have to recall. the mounting is not the norm.

we all learn together. risk is good.

sharing is what makes it work..

beers :beer:

Wouldn't sharing imply posting some details on your "unconventional" mounting?

I tried doing this the super secret handshake way with a PM, but your inbox is full.

Wouldn't sharing imply posting some details on your "unconventional" mounting?

I tried doing this the super secret handshake way with a PM, but your inbox is full.

some room now.

add 70 min of more really ugly track time.. just over a mile long. all second gear.. from 4200 rpm to just before fuel cut off.

beers :beer:

::: bump :::

Any pics 12+ months later?

How is it holding up SwoopE? We are still waiting on pics.

::: bump :::

Any pics 12+ months later?

How is it holding up Swoop? We are still waiting on pics.

really,

Spensemuffin.

well for you spelling,,

cant get my name right, cant help you..

btw, i have email photos to all that have asked..


beers :beer: