Idk, my dynomax super turbo is huge... biggest one I could get. At idle, its quiet just a hair above stock. Which is exactly what I wanted. I had it on my last one and was super pleased with that one even only being on a 2.5" system. The 3" sounds deeper and better. I dont forsee myself ever changing to a different muffler.
-Z Yaaaa- wrote:well novaracer, cobalt ss's are supposed to make 205hp on an engine dyno. so... factoring in the restrictive exhaust, you would think they'd be down somewhere around 175whp but that just isnt the case. im pretty sure they actually dyno around 210whp iirc. so that tells me the muffler flows good to over 200whp. n/a cars and blown cars this muffler should be pretty good.
well the sssc was a bit under rated should have been rated at 235 anyway the muffler should do better than our 140hp muffler makes sense but still cant touch the aftermarket stuff. to me i like the chambered sound but the large turbo mufflers get it done and dont sound that bad.
see ya!
Hey guys thanks for all the input. Just to let ya know I still have my factory exhaust on this is something I've been trying to upgrade for a while but always have other stuff come up. Am expecting a kid in next few days which is the reason I'm looking for something quietier but don't have the factory exhaust anymore neither do I want it back on lol that's why I asked at the moment am not trying to get the most performance out of the muffler which I see everyone has there opinion on this matter.. But I was thinking this dynomax muffler was quieter, what I got now can barly hear my supercharger with all the noise...
anyone ever try a resonated tip? do they even work?
I choose the technology built for land speed records... not the technology built to save on emissions and gas mileage.
-Z Yaaaa- wrote:anyone ever try a resonated tip? do they even work?
had one on my 2.5" and it gave it a whistle sound as well as didnt kill any noise at all.
Mine works i got mine from orileys it kill alot of rasp
see ya!
BuiltNBoosted wrote:-Z Yaaaa- wrote:anyone ever try a resonated tip? do they even work?
had one on my 2.5" and it gave it a whistle sound as well as didnt kill any noise at all.
This sounds about right... you aren't really doing much noise control after the muffler...
Anyway,
Once again, i have to disagree with the whole "OE Manufactuers Makes Junk" Myth stated above... OE Manufactures spend a lot more money in research and development than the aftermarket, and in this case, GM designed a muffler to handle the flow needed considering there is a supercharger forcing air in to the engine.... Anyone that has ever used an LSJ muffler will agree the flow is there, especially on an N/A application (in which this forum (the N/A Performance Forum) is based on)
I don't have the dyno proof at this time.... but I've personally seen back to back dyno runs with the same WHP Output, with only the muffler swapped at the flange in between pulls.
In some cases, OE is better than aftermarket... and for those who still refuse to believe me... the fast and the furious called... they want their myth back...
My proof of flow with the cobalt SS muffler was after install I got an o2 inefficiency code. wound up being the it was flowing to the point the o2 wasnt getting hot enough and had to swap in a heated o2 sensor.
Kyle i work for GM powertrain toledo operations as a sub team leader and as far as mufflers go on the older chit boxes as long as it fit and meets EPA db requirements and didnt kill mpg they went as cheap as they could. Peformance was not the goal.
see ya!
while a cobalt certainly is a "chit box" its still a performance vehicle in this case.
I choose the technology built for land speed records... not the technology built to save on emissions and gas mileage.
True that was when GM was super cheap now i can say we are building alot better stuff and we have alot more say as far as quality of the components goes. The new cruze ss will be a very good car. With that being said i dont like the sonic turbo auto trans it is not the same unit that we put in the cruze nothing is shared other than the output seals lol. I can tell u now we take pride in that we build and its starting to show.
Oh yeah damn near any turbo car muffler would do a better job than a sssc muffler a evo or sti would work preety dam well
see ya!
We're going to have to agree to disagree here... I stand by my statement that those who have used the LSJ muffler will agree it flows very well, (see all the comments in this thread from other people who have used it).
I've been trying REALLLY hard to overlook you bypassing the language filter (which is now twice in this thread, and now once by Brad, =P). I looked at your user record, and you were warned for this already once in the past...
i didnt bypass @!#$.
I choose the technology built for land speed records... not the technology built to save on emissions and gas mileage.
Oh God... words are hurting adults again.
Chr >!<s
'02 Z-24 Supercharged
13.7 @102.45 MPH Third Place, 2007 GMSC Bash SOLD AS OF 01MAR08
Taetsch Z-24 wrote:Oh God... words are hurting adults again.
Chr >!
Rules are rules... I didn't make the rules, but i have to enforce them... Have a complaint??? shoot an email to dave@gmenthusiast.org, he will be more than happy to listen to any complaint you may have against the rules... lol...
... and any analyst would know this is not over port 443... kinda not hard to 'crack'...
I kinda think of it as "laws" They have to be enforced to matter...
Ergo you are the one being questioned bitch-ed (like the female dog...) out by people.
Just sayŃ
Chris
'02 Z-24 Supercharged
13.7 @102.45 MPH Third Place, 2007 GMSC Bash SOLD AS OF 01MAR08
I'm fighting some exhaust leaks right now so my car isn't as quiet as it could be, but with my cherry bomb turbo (when exhaust is fully sealed) it is very quiet at idle and up to 3 grand or so, I wouldn't expect with a newborn you'd be that high up in the rpms... and when your driving by yourself, 3-5 grand sounds amazing. this is also without a resonator or glasspack, just cat and 2.5 piping. stock sized pipe will be quieter...
Have a nice day.
So the people with no proof are bashing the one guy who knows what he is talking about. Lol, classic. And now they are butthurt and looking for pathetic reasons to get "back on top". Gotta love the JBO.
Hell, I will be very surprised if my post is still here in the morning and I DON'T have at-least a warning. Oh and Kyle if you want to threaten him with "breaking the rules" you should realize that you are "breaking" rules 4, 5, & 6 just as much as he is "bypassing the language filter". Yes i know that i am "breaking" the same rules. Have a nice power trip.
Tinkles(KGM) wrote:So the people with no proof are bashing the one guy who knows what he is talking about. Lol, classic. And now they are butthurt and looking for pathetic reasons to get "back on top". Gotta love the JBO.
Hell, I will be very surprised if my post is still here in the morning and I DON'T have at-least a warning. Oh and Kyle if you want to threaten him with "breaking the rules" you should realize that you are "breaking" rules 4, 5, & 6 just as much as he is "bypassing the language filter". Yes i know that i am "breaking" the same rules. Have a nice power trip.
Wow... so I have no proof, although i witnessed back to back dyno runs?? For the record, no one has actually done an air flow test on the muffler itself, therefore we are all speculating. Novaracer is speculating the level of flow due he put these cars together during GM's low quality age, and I am speculating flow due to myself witnessing dyno back to back dyno runs. Brad and Cory are also speculating due to volume and O2 issues. In my opinion, all sides have a valid point, and the topic is worth discussing, and being that this is a discussion forum, this would be place to do it.
Now as to 4, 5, and 6... Really man???
Lets start with 6... No one is fighting here. There isn't one post where anything has gotten "Personal", as opposed to the many threads you yourself have been involved with. In fact, you've been warned three times by three different mods over the last three years for doing just this.
number 5..... the respect is there...however, it's impossible to have a discussion if all those who disagree with a topic don't ever post... Usually the majority of posters will have "got it right", and this will show throughout the life of the thread.. (this isn't always the case, but generally it is the case), E.G. usually when a topic of how something works comes up, the majority of the posters have used the item and a general consensus (either positive or negative) will be posted up. There will always be people who go against the status quo.
Number 4... show me some pornography contained in this thread (this is not an invitation to post some... SAC is back in AG, go there), with that said, there is nothing here that is immature or gross. Once again, we are having a discussion... I believe that everyone who has posted in this thread has held a high moral standard.
Which moves me right along to "Power Trip." For the record, no one has been warned/banned for posts in this thread. I over looked a language filter violation the first time it happened, even though another mod had already warned him for it several months ago, and I didn't mention anything until he bypassed it again, and then brad quoted it. However, for the record i'm not the only mod that comes in to Performance, and they can warn at their own discretion.
Now, Kyle, if you have a problem with me being a Mod, you can contact dave@gmenthusiast.com and let him know your concerns.
Additionally, If anyone has any issues with the rules, you can contact Dave... there's a remote chance he'll consider changing the rule... or you can terminate your account and leave... This is a discussion forum, and there are rules that govern this place...
Edited 1 time(s). Last edited Sunday, September 30, 2012 4:24 AM
This has been a good discussion with its ups and downs but it needed to happen even if we dont agree but we can agree to disagree. I have been on here for 8+ years and i am just trying to keep the j-bodies rolling.
see ya!
