Sound proofing a C4
Thread Starter
Advanced
Joined: Feb 2002
Posts: 99
Likes: 0
From: Central NJ
Sound proofing a C4
Has anyone tried dynamat or similar product? I was thinking of putting some under the carpetting of my 1996 Coupe. Are there any places inside the car that I should definitely do? I was going to start with the rear cargo area.
Thanks :cheers:
Bruce
1996 CE Lt1
Thanks :cheers:
Bruce
1996 CE Lt1
Team Owner
Joined: Apr 2002
Posts: 43,370
Likes: 0
Re: Sound proofing a C4 (New N96)
Okay dude, http://www.sounddeadeningmaterial.com
It's the supply company for Dynamat, and lots cheaper. It WORKS VERY, VERY WELL. Definately recommended. :cheers:
EDIT: Get the blue stuff. The other things are for other purposes.
[Modified by GDP, 8:58 PM 7/14/2002]
It's the supply company for Dynamat, and lots cheaper. It WORKS VERY, VERY WELL. Definately recommended. :cheers:
EDIT: Get the blue stuff. The other things are for other purposes.
[Modified by GDP, 8:58 PM 7/14/2002]
Burning Brakes
Joined: May 1999
Posts: 999
Likes: 1
From: Gardner KS
Cruise-In II Veteran
Re: Sound proofing a C4 (New N96)
I Dynamat'd everything I could when going back together with the '85. I don't think it is as effective as it is on sheet metal since 'glass isn't as resonative but it certainly seemed to help. One thing I did pay special attention to was all the "moving" pieces inside the doors. IMO, GM did a s*** job with C4 doors all the way from the door panel retention (especially at the top) to the internal working pieces and after just a couple years a C4 door sounds like a POS when you shut it. I cushioned all the linkage rods with foam tape and padding and made sure everything was nice and tight and it made a BIG difference on the sound quality of the doors. You get out of it what you put into it so don't be bashful - go for it. -Jeff
Team Owner
Joined: Apr 2002
Posts: 28,747
Likes: 41
From: Frankenstein never scared me. Marsupials do, because they're fassst…and they DART, THAT'S crazy!
St. Jude Donor '03 thru '26
Re: Sound proofing a C4 (New N96)
I put 70 sq. ft. of Brown-Bread in my Vette, I paid about $100 for it on ebay. I put 4 layers on the door frame and 4 layers on the door panel. I also put 4 to 5 layers in the hatch area, under the seats and up the firewall. I also have 1/4" foam padding between the door panel and the door frame.
Here are a few pics:
It’s a long tedious job to do it right but well worth it in the end. :yesnod:
Here are a few pics:
It’s a long tedious job to do it right but well worth it in the end. :yesnod:
Team Owner
Joined: Apr 2002
Posts: 28,747
Likes: 41
From: Frankenstein never scared me. Marsupials do, because they're fassst…and they DART, THAT'S crazy!
St. Jude Donor '03 thru '26
Re: Sound proofing a C4 (joe ciechanowski)
"OK" i give up - what's brown-bread???
Team Owner
Joined: Apr 2002
Posts: 43,370
Likes: 0
Re: Sound proofing a C4 (New N96)
Thank you GDP. I just ordered a roll.
Looks like a great product at a great price.....I'll post results.
:cheers:
Bruce
1996 CE LT1
Looks like a great product at a great price.....I'll post results.
:cheers:
Bruce
1996 CE LT1
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer
Brett Foote
10 Things Every Corvette Owner Needs (2026 Edition)
Michael S. Palmer
8 Most "Only Corvette Owners Understand" Quirks and Problems
Pouria Savadkouei
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years
Joe Kucinski
How Much Horsepower Every Corvette Engine "LOST" in 1972
Joe Kucinski
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!
Michael S. Palmer
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!
Joe Kucinski
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter
Joe Kucinski
8 Coolest Corvette Pace Cars (and Replicas) of All Time
Verdad Gallardo
Team Owner
Joined: Apr 2002
Posts: 43,370
Likes: 0
Re: Sound proofing a C4 (Rearview)
Does it make a big Difference and would 70 sq Ft enough for 1995 corvette
Wouldn't that butt a lot of extra weight to the car? I'd be very against that. But, that is whats important to me....
[Modified by GDP, 12:53 AM 7/18/2002]
Advanced
Joined: Jul 2001
Posts: 72
Likes: 1
From: Baltimore MD
Re: Sound proofing a C4 (GDP)
Just out of curiousity (as I don't think I have the motivation right now to do something like this)... To the folks that undertook such a project, were you successful at reducing the exhaust noise and resonances? I was just wondering how well the soundproofing worked as these low freq noises are particularly hard to dampen. I love my car and how it sounds...BUT, you know, sometimes it'd be nice to go for a 3 hour drive and retain the low to mid portion of my hearing...
Jim
Jim
Team Owner
Joined: Apr 2002
Posts: 43,370
Likes: 0
Re: Sound proofing a C4 (TealBlueEyes)
Just out of curiousity (as I don't think I have the motivation right now to do something like this)... To the folks that undertook such a project, were you successful at reducing the exhaust noise and resonances? I was just wondering how well the soundproofing worked as these low freq noises are particularly hard to dampen. I love my car and how it sounds...BUT, you know, sometimes it'd be nice to go for a 3 hour drive and retain the low to mid portion of my hearing...
Jim
Jim
Team Owner
Joined: Apr 2001
Posts: 54,204
Likes: 180
From: S.W. Ohio. . . . . . NRA Life Member
Re: Sound proofing a C4 (GDP)
I had extremely good results on my C5 using a product make by Frost King, and the sound dampening spray made by Cascade.
If interested, here is my web page detailing it:
mikemercury.home.att.net/sound.htm
[Modified by Mike Mercury, 9:00 PM 7/20/2002]
If interested, here is my web page detailing it:
mikemercury.home.att.net/sound.htm
[Modified by Mike Mercury, 9:00 PM 7/20/2002]
Melting Slicks
Joined: Apr 2002
Posts: 2,546
Likes: 0
From: Orlando FL
Re: Sound proofing a C4 (New N96)
i dynamatted my car.. pulled all carpet, seats, door panels.. used the roll's and spray.. worked great.. turned out awesome.. Made my stereo sound a lot better, but i have since removed it :crazy: It sitting on the floor in bedroom :jester
Team Owner
Joined: Apr 2002
Posts: 43,370
Likes: 0
Re: Sound proofing a C4 (quiksilver458)
i dynamatted my car.. pulled all carpet, seats, door panels.. used the roll's and spray.. worked great.. turned out awesome.. Made my stereo sound a lot better, but i have since removed it :crazy: It sitting on the floor in bedroom :jester
Team Owner
Joined: Apr 2002
Posts: 28,747
Likes: 41
From: Frankenstein never scared me. Marsupials do, because they're fassst…and they DART, THAT'S crazy!
St. Jude Donor '03 thru '26
Re: Sound proofing a C4 (TealBlueEyes)
To the folks that undertook such a project, were you successful at reducing the exhaust noise and resonances? I was just wondering how well the soundproofing worked as these low freq noises are particularly hard to dampen.
Jim
Jim
Also my interior is so air tight I have to crack a window just to close the door or hatch! :lol:
I recommend at least 4 layers everywhere. :yesnod:
Team Owner
Joined: Apr 2001
Posts: 54,204
Likes: 180
From: S.W. Ohio. . . . . . NRA Life Member
Re: Sound proofing a C4 (CowboyNVette)
To the folks that undertook such a project, were you successful at reducing the exhaust noise and resonances? I was just wondering how well the soundproofing worked as these low freq noises are particularly hard to dampen.
Anyways, with the Frost King treatment these expansion joint repairs are totally silent. Now you can "feel" them, but not hear them.
But the one thing the Frost King material (which BTW is only 1/8" thick... and it lays down very nicely) didn't help with much was tire noise. The Cascade spray in the rear fenderwells made a very slight improvement in tire noise (maybe 10 percent at best); and I'd guess that the Frost King material made about another 20 percent additional improvenment in reducing tire noise.
Team Owner
Joined: Apr 2001
Posts: 54,204
Likes: 180
From: S.W. Ohio. . . . . . NRA Life Member
Re: Sound proofing a C4 (Mike Mercury)
BTW, I came to the conclusion that the rushing/roaring tire noise is "leaking" into the interior somehow; and is not being conducted inside by nearby surfaces.
I was going to use the Cascade/Dynomat products; but I am a cheap guy :yesnod: and didn't want to spend $200 plus for the same surfaced interior treatment using the name brand "mat" offerings.
I was going to use the Cascade/Dynomat products; but I am a cheap guy :yesnod: and didn't want to spend $200 plus for the same surfaced interior treatment using the name brand "mat" offerings.