Catalytic Converter Question
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From: You can be my wingman anytime...., Las Vegas, US
Re: Catalytic Converter Question (acuradriva)
You won't really see gains with a high flow cat.
BUT, you will see that you need to buy a new one every 3-4 months.
BUT, you will see that you need to buy a new one every 3-4 months.
Joined: Sep 2002
Posts: 2,086
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From: i run, N.J.
Re: Catalytic Converter Question (integra707)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by integra707 »</TD></TR><TR><TD CLASS="quote">You won't really see gains with a high flow cat.
BUT, you will see that you need to buy a new one every 3-4 months. </TD></TR></TABLE>
why is that...
BUT, you will see that you need to buy a new one every 3-4 months.
</TD></TR></TABLE>why is that...
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Joined: Apr 2002
Posts: 4,604
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From: You can be my wingman anytime...., Las Vegas, US
Re: Catalytic Converter Question (teg-your-it)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by teg-your-it »</TD></TR><TR><TD CLASS="quote">
why is that...</TD></TR></TABLE>
When I had a carsound, I went through 3 in about 9 months.
Then I decided to go back to OEM.
I think other people have had similar experiences as well.
why is that...</TD></TR></TABLE>
When I had a carsound, I went through 3 in about 9 months.
Then I decided to go back to OEM.
I think other people have had similar experiences as well.
Re: Catalytic Converter Question (integra707)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by integra707 »</TD></TR><TR><TD CLASS="quote">
When I had a carsound, I went through 3 in about 9 months.
Then I decided to go back to OEM.
I think other people have had similar experiences as well.</TD></TR></TABLE>
had my SMSP/Carsound for well over a year with no problems. My brother has had his on his car for much longer. No probs at all. I know tons of other people that have run the Carsound cats with no complaints.
The reason the cats will fail is not because of bad craftsmanship....but rather from bad fuel tuning. (the owner's fault....not Carsound)
The following is a quote from a Magnaflow employee who responded to Dave's (SMSP) inquiry on their cat failure:
Originally posted by SMSP in Jun/2002
re: Cat Failure
This post is meant to be a general statement regarding Carsound cats. The following is the response I got from a Magnaflow employee concerning some question I had about the mat that surrounds the catalyst/brick. Magnaflow is a company that is part of the Car Sound Exhaust System company.
"With regard to the mat-it is designed to cushion the ceramic substrate, and is completely functional in that respect. The mat is not required to come to the edge of the substrate in order to cushion the substrate. Of possible cause for substrate failure in which the mat deteriorates is what we refer to as Thermal Failure. At excessively high temperatures, caused by rich fuel mixtures which are not completely burned in the combustion chamber and ignite in the catalytic converter, the stainless steel case expands to the point where the mat is separated from the the case. As exhaust always follows the path of least resistance, the exhaust begins to flow between the mat and the case instead of through the substrate itself. At this point the mat is exposed to exhaust flow and begins to deteriorate. After a period of time, the mat disintegrates and the substrate, which is a brittle ceramic, comes in contact with the steel case and breaks up. So in some cases, the mat disappears because of an excessive heat factor instigated by unburned fuel due to a rich fuel mixture."
The problem lies with you (or your tuner's) ability to dial in the correct a/f ratios on your engine.
When I had a carsound, I went through 3 in about 9 months.
Then I decided to go back to OEM.
I think other people have had similar experiences as well.</TD></TR></TABLE>
had my SMSP/Carsound for well over a year with no problems. My brother has had his on his car for much longer. No probs at all. I know tons of other people that have run the Carsound cats with no complaints.The reason the cats will fail is not because of bad craftsmanship....but rather from bad fuel tuning. (the owner's fault....not Carsound)
The following is a quote from a Magnaflow employee who responded to Dave's (SMSP) inquiry on their cat failure:
Originally posted by SMSP in Jun/2002
re: Cat Failure
This post is meant to be a general statement regarding Carsound cats. The following is the response I got from a Magnaflow employee concerning some question I had about the mat that surrounds the catalyst/brick. Magnaflow is a company that is part of the Car Sound Exhaust System company.
"With regard to the mat-it is designed to cushion the ceramic substrate, and is completely functional in that respect. The mat is not required to come to the edge of the substrate in order to cushion the substrate. Of possible cause for substrate failure in which the mat deteriorates is what we refer to as Thermal Failure. At excessively high temperatures, caused by rich fuel mixtures which are not completely burned in the combustion chamber and ignite in the catalytic converter, the stainless steel case expands to the point where the mat is separated from the the case. As exhaust always follows the path of least resistance, the exhaust begins to flow between the mat and the case instead of through the substrate itself. At this point the mat is exposed to exhaust flow and begins to deteriorate. After a period of time, the mat disintegrates and the substrate, which is a brittle ceramic, comes in contact with the steel case and breaks up. So in some cases, the mat disappears because of an excessive heat factor instigated by unburned fuel due to a rich fuel mixture."
The problem lies with you (or your tuner's) ability to dial in the correct a/f ratios on your engine.
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Re: Catalytic Converter Question (youngvedder)
Here are some flow rates for oem and aftermarket cats:
Stock NSX 242.1 cfm
Stock Type R 223.6 cfm
Stock Integra 218.3 cfm
Catco (metal core) 2.25" 223.8 cfm
Random Tech 2.25" 297.1 cfm
Catco (std. core) 2.25" 338.2 cfm
Car Sound 2.25" 342.7 cfm
Test Pipe 2.25" 407.1 cfm
cfm = flow capacity in cubic feet per minute
Flow test conducted at Comptech USA.
The numbers speak for themselves, you can decide from here.
If you look at the setups of the guys on here that make "good" power N/A, none of them use the oem cat. Its piping is too small and the catalyst brick is too restrictive.
Stock NSX 242.1 cfm
Stock Type R 223.6 cfm
Stock Integra 218.3 cfm
Catco (metal core) 2.25" 223.8 cfm
Random Tech 2.25" 297.1 cfm
Catco (std. core) 2.25" 338.2 cfm
Car Sound 2.25" 342.7 cfm
Test Pipe 2.25" 407.1 cfm
cfm = flow capacity in cubic feet per minute
Flow test conducted at Comptech USA.
The numbers speak for themselves, you can decide from here.
If you look at the setups of the guys on here that make "good" power N/A, none of them use the oem cat. Its piping is too small and the catalyst brick is too restrictive.
In-N-Out Burger
Joined: Apr 2003
Posts: 5,424
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From: 1320ft OC LA, XX, USA
Re: Catalytic Converter Question (BlueTeg)
Just get a Carsound in conjuction with a new upgraded exhaust setup. If you are getting it installed by a mechanic, you will save money...if you will be doing it yourself, then it will save you time and you can do both in just hours.
Carsound
Testpipe
NRG
Carsound
Testpipe
NRG
Re: Catalytic Converter Question (NightRider-gsR)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by NightRider-gsR »</TD></TR><TR><TD CLASS="quote">
Carsound
Testpipe
</TD></TR></TABLE>
agrees with him.
Carsound cat vs. Testpipe dyno.......no difference in power output.
http://mods.team-integra.net/i...t.jpg
Carsound
Testpipe
</TD></TR></TABLE>
agrees with him.Carsound cat vs. Testpipe dyno.......no difference in power output.
http://mods.team-integra.net/i...t.jpg
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