CT B-Pipe Update
06-18-2003, 01:56 PM
#41
boosted is best
Thread Starter
Good point. Something I didn't consider. I've been bugging CompTech for SC'd and non-SC'd dyno charts for the b-pipe. If what you said turns out to be true, then I'd wait on the b-pipe until I install the SC. Anyone else who doesn't want to install a SC probably should forget about the b-pipe - if it's going to degrade low-end torque.
Thanks for catching this...
"Keep in mind that the b-pipe is the longest exhaust component (about 6-7 ft. total length including the y portion of the pipe) and may be the biggest bottle neck..."
Maybe it's more like this from biggest bottle neck to least:
1) Headers
2) Cat
3) Cat-back
4) Axle-back
But until we see some dyno numbers, it's purely speculative for now...
Thanks for catching this...
"Keep in mind that the b-pipe is the longest exhaust component (about 6-7 ft. total length including the y portion of the pipe) and may be the biggest bottle neck..."
Maybe it's more like this from biggest bottle neck to least:
1) Headers
2) Cat
3) Cat-back
4) Axle-back
But until we see some dyno numbers, it's purely speculative for now...
Originally posted by t-rd
Get ready for some massive low end torque loss if you N/A guys are getting this. You need that extra low end power from an SC to compensate for this. There are countless 2.5" catbacks made for 3.0 V6 Accord, a lot of guys eventually sold their catbacks because the top end gain was not worth the low end torque loss. I sold my piece of shit 2.5" catback system because I was actually lagging behind stock Accords off the line! Anything below 3k RPM will cause a slowdown in exhaust gas flow rate because of the larger piping diameter. And YES, stock Honda/Acura Y-pipe is already stainless steel, it is just not polished with a shiny finish. Also with a larger b-pipe, prepare for a louder exhaust note. Those who thought just the Comptech mufflers were loud and had to use a quiet insert tip, scratch this off the list now.
And NO, the b-pipe is not the biggest bottleneck of the Honda/Acura V6's, it is the exhaust manifold. That's why the headers give so much gain over exhaust or intake mods.
Get ready for some massive low end torque loss if you N/A guys are getting this. You need that extra low end power from an SC to compensate for this. There are countless 2.5" catbacks made for 3.0 V6 Accord, a lot of guys eventually sold their catbacks because the top end gain was not worth the low end torque loss. I sold my piece of shit 2.5" catback system because I was actually lagging behind stock Accords off the line! Anything below 3k RPM will cause a slowdown in exhaust gas flow rate because of the larger piping diameter. And YES, stock Honda/Acura Y-pipe is already stainless steel, it is just not polished with a shiny finish. Also with a larger b-pipe, prepare for a louder exhaust note. Those who thought just the Comptech mufflers were loud and had to use a quiet insert tip, scratch this off the list now.
And NO, the b-pipe is not the biggest bottleneck of the Honda/Acura V6's, it is the exhaust manifold. That's why the headers give so much gain over exhaust or intake mods.
06-18-2003, 02:58 PM
#42
Originally posted by t-rd
Get ready for some massive low end torque loss if you N/A guys are getting this. You need that extra low end power from an SC to compensate for this. There are countless 2.5" catbacks made for 3.0 V6 Accord, a lot of guys eventually sold their catbacks because the top end gain was not worth the low end torque loss. I sold my piece of shit 2.5" catback system because I was actually lagging behind stock Accords off the line! Anything below 3k RPM will cause a slowdown in exhaust gas flow rate because of the larger piping diameter. And YES, stock Honda/Acura Y-pipe is already stainless steel, it is just not polished with a shiny finish. Also with a larger b-pipe, prepare for a louder exhaust note. Those who thought just the Comptech mufflers were loud and had to use a quiet insert tip, scratch this off the list now.
And NO, the b-pipe is not the biggest bottleneck of the Honda/Acura V6's, it is the exhaust manifold. That's why the headers give so much gain over exhaust or intake mods.
Get ready for some massive low end torque loss if you N/A guys are getting this. You need that extra low end power from an SC to compensate for this. There are countless 2.5" catbacks made for 3.0 V6 Accord, a lot of guys eventually sold their catbacks because the top end gain was not worth the low end torque loss. I sold my piece of shit 2.5" catback system because I was actually lagging behind stock Accords off the line! Anything below 3k RPM will cause a slowdown in exhaust gas flow rate because of the larger piping diameter. And YES, stock Honda/Acura Y-pipe is already stainless steel, it is just not polished with a shiny finish. Also with a larger b-pipe, prepare for a louder exhaust note. Those who thought just the Comptech mufflers were loud and had to use a quiet insert tip, scratch this off the list now.
And NO, the b-pipe is not the biggest bottleneck of the Honda/Acura V6's, it is the exhaust manifold. That's why the headers give so much gain over exhaust or intake mods.
06-18-2003, 03:29 PM
#43
Suzuka Master
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Originally posted by t-rd
Get ready for some massive low end torque loss if you N/A guys are getting this.
Get ready for some massive low end torque loss if you N/A guys are getting this.
Smitty
06-18-2003, 03:29 PM
#44
boosted is best
Thread Starter
Originally posted by fuzzy02CLS
I agree with this. Every guy I have talked to about this subject all say the same thing. Bigger pipes, & even headers will kill some torque. That is the 2nd biggest reason I have the stock exhaust. I was weary to get the headers for fear of this, & by my dyno's it looks like it may be true, on my car at least. I had headers & exhaust on my trucks, & loss the low end too.
I agree with this. Every guy I have talked to about this subject all say the same thing. Bigger pipes, & even headers will kill some torque. That is the 2nd biggest reason I have the stock exhaust. I was weary to get the headers for fear of this, & by my dyno's it looks like it may be true, on my car at least. I had headers & exhaust on my trucks, & loss the low end too.
Also, I've heard some people say on this forum they noticed some power and torque gains after installing the CT exhaust. Could you folks who installed the CT exhaust report on this?
thanks...
06-18-2003, 03:36 PM
#45
Senior Moderator
as long as you retain the factory cat, low end torque loss should be little or none. i'm running full cat back w/ large diameter piping and i haven't noticed low end power loss. but i have noticed gains from 3500 rpm on up.
i'll know for sure once i hit the strip.
i'll know for sure once i hit the strip.
06-18-2003, 03:37 PM
#46
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I have seen the CT exhaust in person and I have to say that I am disappointed.. they are about half the size of stock and I was not fond of the round tips.. I like the 03 tips better since they take up more bumper molding gap... plus I noticed rust all around the welds and the seem of the exhaust... I guess that stainless welds rust but not stainless steel... From my understanding, it all depends on what type of Stainless you use to make the product...
06-18-2003, 03:42 PM
#47
Senior Moderator
CT mufflers are head and shoulders better looking and sounding than the stocks. mine never had rust on any part of them, including welds.
06-18-2003, 04:00 PM
#48
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They are smaller than Stock.. no doubt about that... I never said anything about the sound, they did sound really good... Just not worth the money per pony ratio, if you got an 03 in my opinion..
Smitty
p.s. I always wanted them but since I seen them in person that changed my mind completely
Smitty
p.s. I always wanted them but since I seen them in person that changed my mind completely
06-18-2003, 05:43 PM
#50
boosted is best
Thread Starter
I would like to apologize to everyone for misinforming you about "Mike B" at CompTech. He is still with Comptech but doesn't maintain the forum any longer due to a management decision to streamline their efforts in disseminating information and to provide a consistent message. It turned out that many people who posted to the forum also called them so it was becoming a redundant issue and wasting resources.
Again, sorry for starting a rumor.
Again, sorry for starting a rumor.
06-18-2003, 07:13 PM
#51
Revving at 9K...
Originally posted by Smitty
I have seen the CT exhaust in person and I have to say that I am disappointed.. they are about half the size of stock and I was not fond of the round tips.. I like the 03 tips better since they take up more bumper molding gap... plus I noticed rust all around the welds and the seem of the exhaust... I guess that stainless welds rust but not stainless steel... From my understanding, it all depends on what type of Stainless you use to make the product...
I have seen the CT exhaust in person and I have to say that I am disappointed.. they are about half the size of stock and I was not fond of the round tips.. I like the 03 tips better since they take up more bumper molding gap... plus I noticed rust all around the welds and the seem of the exhaust... I guess that stainless welds rust but not stainless steel... From my understanding, it all depends on what type of Stainless you use to make the product...
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