Sound Deadening 101
Thread Starter
Team Owner
Joined: Feb 2000
Posts: 51,504
Likes: 6
From: Sacramento CA
Premium Supporting Vendor
Joined: Nov 2003
Posts: 6,852
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From: www.EXOTICVETTE.com - FL Cruise-In VI, VII, & VIII
Cruise-In V Veteran
St. Jude's Donor '05-'06-'07-'08-'09-'10-'11-'12-'13-'14-'15-'16
One of the few posts I've read on sound deadening that I agree with 
Not just blowing smoke out your donkey 
Not just blowing smoke out your donkey
Racer
Joined: Mar 2007
Posts: 278
Likes: 2
From: Wellington Florida
DPG, actually the Koolmat is pretty expensive. The fron kit cost me about $380. I do note on there website they now have a kit for the back but it is $459. How does this compare with the other products in cost. Also noticed they have a kit for the C5 now. Would love to take a look at that other product if you find the link/thread.
Former Vendor
Joined: Nov 2005
Posts: 8,995
Likes: 2
From: Spring Texas
St. Jude Donor '08
Jesus, Radio Flyer it is quite clear you have forgotten more about sound deadening, etc. than I am ever going to know. Great info. Let me elaborate on my setup a little more to make sure I understand your recommendations. The rear area of a c3 is much like the picture of your c5 except the bottom is flat. There is a vertical wall at the very back though, like yours. I have dynamatted this area entirely already, but if I understand you correctly, you would advocate putting these other products on the these areas, right? The mufller setup I have exits at the rear of the car. It is 3" with flowmaster delta flows. The mufflers are tilted at about a 45 degree angle under the very back of the car and tucked up underneath. The gas tank is right above them and behind them and the compartment we are talking about is behind the gas tank.
Keep in mind I am not familiar with the products you are talking about. Do they spray on, are they self adhesive sheet type. Please elaborate. Also is there something I should spray above and around the fiberglass shell over the mufflers. Thanks again.
Keep in mind I am not familiar with the products you are talking about. Do they spray on, are they self adhesive sheet type. Please elaborate. Also is there something I should spray above and around the fiberglass shell over the mufflers. Thanks again.
I reccomend Second Skin's overkill pro foam on top of the dynamat. Use a spray on adhesive ("misty" upolstry adhesive a good glue) to attach the foam to the dynamat.
here's a link: http://www.secondskinaudio.com/cgi-b....cgi?p=ps&pg=3
the foam can be easily cut with regular scissors and if you want to mark on it, a sharpie will work.
Le Mans Master
Joined: Aug 2005
Posts: 7,201
Likes: 0
From: DP(oh you know where) IL
St. Jude Donor '06
your mufflers are at the perfect angle to project sound directly into the car. I used to have similar mufflers on my truck (2 SI/SI Flowmasters in 2.5") but they were mounted under the bed and the silverado had a good deal of stock insulation.
I reccomend Second Skin's overkill pro foam on top of the dynamat. Use a spray on adhesive ("misty" upolstry adhesive a good glue) to attach the foam to the dynamat.
here's a link: http://www.secondskinaudio.com/cgi-b....cgi?p=ps&pg=3
the foam can be easily cut with regular scissors and if you want to mark on it, a sharpie will work.
I reccomend Second Skin's overkill pro foam on top of the dynamat. Use a spray on adhesive ("misty" upolstry adhesive a good glue) to attach the foam to the dynamat.
here's a link: http://www.secondskinaudio.com/cgi-b....cgi?p=ps&pg=3
the foam can be easily cut with regular scissors and if you want to mark on it, a sharpie will work.
Irish here is the stuff I was looking for. Thanks RadioFlyer
and its a lot cheaper than the koolmat.
Racer
Joined: Mar 2007
Posts: 278
Likes: 2
From: Wellington Florida
