cat converter question
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cat converter question
Im piecing together a custom 2.5" exhaust for my ITR/eg hybrid. When it comes to the cat has anyone tried those carsound resonated CATs?
94406 is the 2.5" resonated version
95306 is the 2.5" one SMSP uses
It looks as if the one SMSP uses is rated to flow more but am I really going to notice a differnece between the 2 aside from noise?
Also would I have enough room on the B-pipe to run the new 26" 2.5" magnaflow resonator or do I need to stick to the 22"
94406 is the 2.5" resonated version
95306 is the 2.5" one SMSP uses
It looks as if the one SMSP uses is rated to flow more but am I really going to notice a differnece between the 2 aside from noise?
Also would I have enough room on the B-pipe to run the new 26" 2.5" magnaflow resonator or do I need to stick to the 22"
Re: (93eg6)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 93eg6 »</TD></TR><TR><TD CLASS="quote">i think you should use the JDM ITR cat, it's shorter and will last you longer and it flows really good...</TD></TR></TABLE>
Why cause its "JDM"???
It may flow a little better than the usdm stock cat but it won't even come close to the CFM of the Carsound cat. I'd stick with the one that SMSP offers. I have one of his cats in my car and the sound change was barely audible at all.
Why cause its "JDM"???
It may flow a little better than the usdm stock cat but it won't even come close to the CFM of the Carsound cat. I'd stick with the one that SMSP offers. I have one of his cats in my car and the sound change was barely audible at all.
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Re: (BlueTeg)
My Carsound experiences (which currently continue) are mixed, but as long as you get a good one, i.e. one without bricks that break loose, you should be alright.
Re: (BlueTeg)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by BlueTeg »</TD></TR><TR><TD CLASS="quote">
Why cause its "JDM"???
It may flow a little better than the usdm stock cat but it won't even come close to the CFM of the Carsound cat. I'd stick with the one that SMSP offers. I have one of his cats in my car and the sound change was barely audible at all.</TD></TR></TABLE>
No because it lasts longer and wont clunk on you in 3 months...
Why cause its "JDM"???
It may flow a little better than the usdm stock cat but it won't even come close to the CFM of the Carsound cat. I'd stick with the one that SMSP offers. I have one of his cats in my car and the sound change was barely audible at all.</TD></TR></TABLE>
No because it lasts longer and wont clunk on you in 3 months...
Re: (93eg6)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 93eg6 »</TD></TR><TR><TD CLASS="quote">
No because it lasts longer and wont clunk on you in 3 months...</TD></TR></TABLE>
I've 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.
No because it lasts longer and wont clunk on you in 3 months...</TD></TR></TABLE>
I've 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.
Re: cat converter question (KRiS1)
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.
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.
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