exhaust - Page 7 - ZR-1 Net Registry Forums

XfireZ51 · 08-20-2014

Here's probably a better video showing the difference between open and closed actuators and what exhaust sounds like both ways.

Schrade · 08-20-2014

Sounds reasonable from outside... But so does mine.

I don't have cutouts to seal off (or open even, if they would muffle the drone).

I got some more sections wrapped and clamped. (minus the clamp marking tape)

Those straight sections might take sheet cork, with another layer of wrap, once I put an IR thermometer to them...

Next, leftover wrap onto the tail sections at the muffler, then the spare tire space.

Anyone ever open the PE mufflers?

edram454 · 08-20-2014

thanks for all your comments on exhaust. In the beginning I was trying to be prudent with my exhaust and accepting my flowmaster system as just fine. It is a good exhaust but... if you want more sound changes need to be made. After i changed mufflers I realized that it still was not enough sound and the drone was not that bad. I wanted more.. Now I am all in on maximum noise.

I want my zr1 experience to be wild and out there. I want the look, the performance and the sound. Most guys say.. what is so special about that lt5 motor?? I want them to hear me coming. When I punch it I want them to hear ther revs in full blast mode. Like I have said before, I dont spend alot of time driving around my zr1. When I choose to drive it I want it to fill my senses so it will last me till next time. I really like to drive alone just so I can take it all in and enjoy my drive. this is a very selfish hobby on my part but I dont care. I worked for it and now I want to enjoy it. My wife understands. The first two did not and that is why they are ex's. I thought about the electric cutouts and I decided I just dont want more electronics on my car. It has enough. I will install an x pipe and remove my resonators and hope it has the raucous sound I want.

ed ramos #3028

KILLSHOTS · 08-20-2014

Quote:

Originally Posted by edram454

thanks for all your comments on exhaust. In the beginning I was trying to be prudent with my exhaust and accepting my flowmaster system as just fine. It is a good exhaust but... if you want more sound changes need to be made. After i changed mufflers I realized that it still was not enough sound and the drone was not that bad. I wanted more.. Now I am all in on maximum noise.

I want my zr1 experience to be wild and out there. I want the look, the performance and the sound. Most guys say.. what is so special about that lt5 motor?? I want them to hear me coming. When I punch it I want them to hear ther revs in full blast mode. Like I have said before, I dont spend alot of time driving around my zr1. When I choose to drive it I want it to fill my senses so it will last me till next time. I really like to drive alone just so I can take it all in and enjoy my drive. this is a very selfish hobby on my part but I dont care. I worked for it and now I want to enjoy it. My wife understands. The first two did not and that is why they are ex's. I thought about the electric cutouts and I decided I just dont want more electronics on my car. It has enough. I will install an x pipe and remove my resonators and hope it has the raucous sound I want.

ed ramos #3028

Hey Ed,

Does your car have headers? Before I went to the Corsa system, I had straight pipes...the stock '90 manifolds with cats ran into the stock ZR-1 exhaust pipes, with the resonator replaced by an H-pipe and the mufflers replaced by LT1-tip muffler eliminators. The only "mufflers" were the stock cats. I LOVED, absolutely LOVED the sound the car made and I highly recommend it. It sounds like it may be the sort of sound you want. The only reason I changed to my current setup is because I wanted headers and I knew when I did that, I'd have no "mufflers" at all and I'd be pissing off the neighbors and getting tickets. That's why I got the Corsa when I did headers. If you have stock manifolds and want AWESOME, cheap sound and don't care about drone, I highly recommend straight pipes. Jon Porter (Rex Ruby) will tell you the same thing.

Good luck!

edram454 · 08-20-2014

Yes Chris I have headers. The only mufflers I have besides the resonators is the two chamber flowmaster pieces. I expect a good sound without the resonators. I will have them installed next week. A good sound is something that is not very easy to attain. Most exhaust systems dont have that real mean sound because it needs to appeal to the masses. I am sure your exhaust using the cats as the mufflers sounded great but like you said you wanted the benefits of long tube headers for performance gains. I think I will get that sound since headers are loud and no resonators makes the system louder with a higher pitch and some crackling. cant wait.

mike100 · 08-21-2014

Quote:

Originally Posted by Schrade

You got vids posted of your hardware's sound too there Mike?

I posted the entire process at the other forum, but you saw it here first (2-3 months ago) if you are a member and get the newsletter.

here's the video link where the audible resonance can actually be heard by my camera mic.
http://vid29.photobucket.com/albums/...ps97199d80.mp4

mike100 · 08-21-2014

Quote:

Originally Posted by edram454

... I will install an x pipe and remove my resonators and hope it has the raucous sound I want.

ed ramos #3028

I x-piped a stock pipe and muffler set and while still quite pleasant compared to some sets out there, it definitely got more grumble. If headers, x-pipe, no cats, and flowmasters aren't loud enough for you, I would recommend seeing a hearing specialist

XfireZ51 · 08-22-2014

Forgot about this video. Its more along the lines of mike100s video w a better
audio track I think.

Schrade · 08-22-2014

Quote:

Originally Posted by Schrade

Anyone ever open the PE mufflers?

One person has opened up the tips, that I know of here...

Open:

and closed:

edram454 · 09-02-2014

I finally modified my exhaust and now have long tube headers going to a 4 inch y pipe then out to two 2.5 inch duals exiting into 2 2-chamber flowmaster mufflers. I will tell you that removing those flowmaster resonators have given my car a tremendous performance seat of the pants feel. It is felt very hard after 4k rpm's. It almost feels like it wants to break the tires loose. The sound is tremendous!!! All hell is breaking loose back there while in wot. I would love to be able to follow my car as someone floored it. There is serious drone at 2k rpms. It is bad but I dont care. The car makes a statement even at idle. Being a black menacing car and now with that sound and after tearing off my window films so you can see my roll bar inside, it looks like a very serious Corvette not to be messed with. This is just what the Doctor ordered. It will stay this way.

08-20-2014	#61
XfireZ51 Join Date: May 2007 Location: Chicagoland, IL Posts: 9,664	Re: exhaust Here's probably a better video showing the difference between open and closed actuators and what exhaust sounds like both ways. __________________ [SIGPIC][/SIGPIC]Former Membership Chairman Former ZR-1 Registry - BOD 1972 Corvette 4speed base Coupe SOLD long time ago 1984 Corvette Z-51/4+3 SOLD 1992 Corvette ZR-1 Aqua/Gray #474 SOLD 1992 Corvette ZR-1 Black Rose/Cognac #458 2014 Honda VFR Interceptor DX

08-20-2014	#62
Schrade Join Date: Dec 2012 Location: NC Posts: 1,786	Re: exhaust Sounds reasonable from outside... But so does mine. I don't have cutouts to seal off (or open even, if they would muffle the drone). I got some more sections wrapped and clamped. (minus the clamp marking tape) Those straight sections might take sheet cork, with another layer of wrap, once I put an IR thermometer to them... Next, leftover wrap onto the tail sections at the muffler, then the spare tire space. Anyone ever open the PE mufflers? __________________ I'm getting my snappics / threads removed blindly as fast as I can, to get in compliance with copyright / license TOS on the boards here (lots of FSM pages and other copyright / license violations on my part; sorry guys). And thanks to all the guys who didn't whine when I posted those FSM copyrighted / licensed stuff in my threads... ( :thumbsup: [b]and to think I complied with a mod's request to delete a pic of him in a Challenge Car in NCM Museum, so he wouldn't get in hot water)[/b] Thanks to several guys here for sending parts FREE; BearlyFlying, WeGone, Geezer, GoldCylon, and more there, TonyD, mike100, fletchusmc... 1990 #2794; 4L60e Stage V by RPM Transmission, TCI Dedicated TCM, OBX Stainless, Power Effects 3" [IMG]https://lh5.googleusercontent.com/-GHpfzty7DVU/UQn-0Ru2xAI/AAAAAAAAA14/08mz1p4QLD4/s445/Screenshot-5.png[/IMG]

08-20-2014	#63
edram454 Join Date: Nov 2013 Location: .. Posts: 693	Re: exhaust thanks for all your comments on exhaust. In the beginning I was trying to be prudent with my exhaust and accepting my flowmaster system as just fine. It is a good exhaust but... if you want more sound changes need to be made. After i changed mufflers I realized that it still was not enough sound and the drone was not that bad. I wanted more.. Now I am all in on maximum noise. I want my zr1 experience to be wild and out there. I want the look, the performance and the sound. Most guys say.. what is so special about that lt5 motor?? I want them to hear me coming. When I punch it I want them to hear ther revs in full blast mode. Like I have said before, I dont spend alot of time driving around my zr1. When I choose to drive it I want it to fill my senses so it will last me till next time. I really like to drive alone just so I can take it all in and enjoy my drive. this is a very selfish hobby on my part but I dont care. I worked for it and now I want to enjoy it. My wife understands. The first two did not and that is why they are ex's. I thought about the electric cutouts and I decided I just dont want more electronics on my car. It has enough. I will install an x pipe and remove my resonators and hope it has the raucous sound I want. ed ramos #3028

08-20-2014	#65
edram454 Join Date: Nov 2013 Location: .. Posts: 693	Re: exhaust Yes Chris I have headers. The only mufflers I have besides the resonators is the two chamber flowmaster pieces. I expect a good sound without the resonators. I will have them installed next week. A good sound is something that is not very easy to attain. Most exhaust systems dont have that real mean sound because it needs to appeal to the masses. I am sure your exhaust using the cats as the mufflers sounded great but like you said you wanted the benefits of long tube headers for performance gains. I think I will get that sound since headers are loud and no resonators makes the system louder with a higher pitch and some crackling. cant wait.

08-22-2014	#68
XfireZ51 Join Date: May 2007 Location: Chicagoland, IL Posts: 9,664	Re: exhaust Forgot about this video. Its more along the lines of mike100s video w a better audio track I think. __________________ [SIGPIC][/SIGPIC]Former Membership Chairman Former ZR-1 Registry - BOD 1972 Corvette 4speed base Coupe SOLD long time ago 1984 Corvette Z-51/4+3 SOLD 1992 Corvette ZR-1 Aqua/Gray #474 SOLD 1992 Corvette ZR-1 Black Rose/Cognac #458 2014 Honda VFR Interceptor DX Last edited by XfireZ51; 08-22-2014 at 11:22 AM.

09-02-2014	#70
edram454 Join Date: Nov 2013 Location: .. Posts: 693	Re: exhaust I finally modified my exhaust and now have long tube headers going to a 4 inch y pipe then out to two 2.5 inch duals exiting into 2 2-chamber flowmaster mufflers. I will tell you that removing those flowmaster resonators have given my car a tremendous performance seat of the pants feel. It is felt very hard after 4k rpm's. It almost feels like it wants to break the tires loose. The sound is tremendous!!! All hell is breaking loose back there while in wot. I would love to be able to follow my car as someone floored it. There is serious drone at 2k rpms. It is bad but I dont care. The car makes a statement even at idle. Being a black menacing car and now with that sound and after tearing off my window films so you can see my roll bar inside, it looks like a very serious Corvette not to be messed with. This is just what the Doctor ordered. It will stay this way.