Dude, I have converted three cars for members on this board not mentioning that I have also done the poor mans and the full version on my car before going to a T04. I'm actually doing one tomorrow for someone. I'll get video and we will see how much difference in sound anyone here on the board can tell from the video. You guys must be ******* bats because I have never noticed any audible difference. NONE AT ALL!!!! Maybe you guys don't know what the hell to listen for and yoru actually hearing exhaust leaks, i don't know what your problems are..
How many cars have you converted to non sequential?????

 

boosts, its totally louder in non sequential
nobody is a retard but you just didnt notice I guess. even the poormans is louder because you wire open the precontrol door.

turn the car on and sit under it and open and close the precontrol door and youll hear it

 

people.. i hear that running non sequential is very hard on the primary turbo due to it always spining at or near max. levels.

Is this true or only applicable to certain ways of the sequential mod? (e.g. poor man's way, full-sequential, etc...)

 

Anyone who knows better. BTW, your batting average is pretty low today. Would you care to explain how the baffles in a catalytic converter work?

I said basically the same. When you remove the internal gates, it's probably louder at higher rpm too.

I was non-sequential 7 years ago. Where were you?

 

Three.

 

i was a freshman in highschool

btw, you are right dude

my friends fd with a dp, stock cat and greddy ti exhaust is WAYYY lower than my dp, stock cat and trust exhaust both idling..could be the exhaust but its a big difference..he is seq and im non..

there you go, no need to extend this argument..

 

well continuing to argue about 2 completely different cars being louder or not is useless, arguing about how did what, when, why and how long ago is also useless. I started this whole loudness conversation 2 pages ago by asking if someone could please TECHNICALLY EXPLAIN what makes it louder, just because some of you say "It was louder on so and so's non-seq car than on my sequential car" really means dick to me. Being devils advocate I could come up with 3 million reasons for why someones car was louder than another.

I'm doing the conversion on my car tomorrow so I'll find out first hand what's louder and what isn't for MY car. I've only heard one car immediately before and after at tri-point in cali that had the conversion done and I couldn't tell the difference with the naked ear. But who knows, maybe like everything else its something on a car to car basis.

I've read some people hint at things that could be a reason for increased volume but to me they don't seem to be logical enough to cause a dramatic increase in volume.

So seriously now, can anyone here come up with some technically sound reasoning for why a non-seq car would be night and day different in noise level than a seq car? That's all I really want to know. I like facts not hearsay.

 

It results in a less restrictive exhaust path.

 

Boy are you going to have egg on your face. Jim is right on about this. I'm most curious about how you'll try to back out of this after you find out you mucked up, not to mention you had an attitude about it insulting others to top it off.

Kevin T. Wyum

 

what the crap is simplified aequential? 26 hoses? that doesnt sound that simplifed to me

 

[QUOTE=jpandes]jpandes im curious as to who built and tuned your motor?

 

Damn, I didn't mean to start a fight here. I'll probably do Simplified Sequential, so you guys can stop fighting now.

Amel

 

Well yeah, that's obvious but as to how that translates into some large sound difference is still unexplained. The best I could figure out is that it might cause a minimal amplification of sound

 

? it's obvious. the more restricted an exhaust, the quieter it will be. it's like having a muffler vs a straight pipe. i don't know why people are having such a tough time understanding this.

 

I don't know. I converted Jon's car to non sequential earlier today and we had one hell of a time distinguishing any noticeable difference in the sound from before to after the conversion. Jim I think you need to change the batteries in your hearing aid. I think once again this is one of those disagreements that doesn't amount to **** in the real world but many of you like to pick **** apart just for the sake of winning an argument. I went at it today with an open mind and tried my hardest to hear something that would make me have the impression "hey that is louder that before" Sorry It just didn't happen. I understand the mechanics of non-sequential completely. The added air flow is just not audible to me. I don't see what all the fuss is over. Seems alot of the same people want to argue boost lag too. I'm just calling it like I see it. Sorry if that isn't the popular opinion.

 

As of today I am up to five so I am two up on you bud.

 

Not really.

I was at the bars spending time with all the pretty young females, I was 21. You were like what 58 and waiting on Viagra to be released?

Just kidding with you there Jimmy, loosen up the collar.

 

Are you actually cutting the gates out or are you just tying the levers open? If you're doing the real thing and cutting the gates out and you're claiming you can't hear a difference you're full of crap. The fact that it gets louder has been a given for almost 10 years.

 

Good for you. How many of those have you done right?

Damn close. 28 and managing development on the Windows team.

If he's doing conversions in one day, he must be wiring the gates. Next he'll probably try to tell us that naturally aspirated rotaries aren't louder than turbocharged rotaries.

 

Ok lets assume equal mods:

DP
MP
Cat back
CAI
Power FC

From my uneducated standpoint, I can see the Non-seq only being significantly louder at idle, due to the removed flappers allowing much better flow on the exhaust. But after 4500rpm, I would think they are approximately equal in sound levels, because they are flowing almost the same exhaust (flappers are open on sequential). Now, I dont have any first hand experience...yet....to say either way. But in the next couple months I think I am going to do a full Non-Seq mod on my car, and then Ill know for sure.

 

As Dave said, he did my car yesterday. We talked about the loudness factor at length beforehand, and went in with an open mind. I had my next door neighbor, fiancée, soon-to-be mother-in law, and my friend Ryan listen to my car before and after. The consensus was that they thought the tone was different but in no way shape or form was it “significantly louder”. As I said before I'll give you guys the fact that it may be a decibel or two louder with the change in exhaust flow but it certainly was not something where I was like "Oh my god its so much louder".

I like how you all rag on Dave and what work he does when you guys obviously have no substance to back it up. Dave's worked on my car for a while now and honestly it's running better now than ever, he works quickly, explains **** as he goes and most importantly it's all done correctly. If you’ve never had Dave work on your car or an acquaintances car how can you really voice an opinion on that person? I've come to understand from reading this post that some of you guys, like jimlab, are probably a bit older than most here but with the way you talk **** with no basis you honestly to me come off sounding like every other young punk that’s out there.

I for one don’t open my mouth on something unless I’m damn sure I have legitimate factual information to justify my beliefs of another individual.

 

Were your turbos removed during the process? Does this picture look familiar? If not, then your turbos aren't really non-sequential.



As far as no substance to back it up, Kevin was one of the first to have a true non-sequential car in 1996 or earlier. I was true non-sequential in mid-1997, and at that time, there were maybe 3 or 4 others. It's been common knowledge for years that true non-sequential is significantly louder than sequential below 4.5k rpm. Do you see the gaping hole in the exhaust manifold above where the gate used to be? That's why true non-sequential is louder than sequential.

Dave wired a couple gates open and thinks he's an expert on the subject. Sorry, but I'm not even the slightest bit impressed with Dave or his opinions or his knowledge of the car.

 

Wow, I must have you confused someone then. Did you not have a company called N-tech?

Yes the last one I did was the poor mans version, I had the door wired back and I did not remove it from the manifold. However I did full version to my car two years ago and I did not notice any difference. But I ported and rebuilt my engine at the same time hence the reason for not noticing any difference. Jim, I have done all of them right. I grew up working on cars. My father ran a successful company down in south Texas for over fourteen years and my mothers side has owned and operated Appletons Harley Davidson in Nashvillle Tn for over twenty years. It's not as though I don't have the experience. Don't make your self look like a complete *** by assuming I am not experienced in a garage. You arogant jackass. I read into this post as one stating that the car would be signiigantly louder with non sequential. I didn't not distinguish as to weather or not we were discussing wether or not we removed the flapper door or wired it back. My statement is true to if you are looking at non -sequentail. That being said. I still have my boubts as to the actual noise increase after removing the door. Like I said. when I did mine (BTW Who did your the first time Jim, You or no?) I ported teh engine so It was louder anyway. There was no way to distinguish how much noise was caused by the removal of the door. Jim, I am no way impressed that you did it seven years ago. Get overyourself. You act as though we shoudl be impressed that you followed someones leads a few years before I did. Whoopty ****** doo. Mypoint is that the poor mans version of non sequential is NOT noticeably louder that the sequential. I also state that I doubt that removing the door alltogether increases the noise level to a considerable amount. However I agree that I cannot say this in certainty without once again completing the full version on someones (Jon you interested?) car and taking note of the changes. Now Jim you ******* elitist wannabe., "True non sequential" is a nice little cathc phrase you came up with but the fact is that the poormans version opperates the twins in tandem which is non sequetial. Wether I removed all the parts or wired teh door back the **** is still non sequentail. REALLY, HOW **** CAN YOU GET?
"It's not true non-sequential" LOL Give me a ******* break!..



If I ever get around to converting someone elses car to the completed full non sequential again and I do notice an excessive incress in noise levels then I will be back for my humble pie. Until that day comes.

 

No, and I've never lived in Florida. That's Nick Reifner.

That's arrogant, by the way, and I don't really care what your credentials are. If you can't figure out that removing the restriction of the gates makes the car louder, then it doesn't matter how long you've been able to hold a wrench in your hand.

 

Aside from the non sequentail topic here. I had you confused with him.