Dynomat Extreme ? ANy experienced users here?
Melting Slicks
Joined: Sep 2004
Posts: 2,847
Likes: 439
From: Spring Texas
http://www.onlinecarstereo.com/CarAu...roductID=12655
Drifting
Joined: Oct 2005
Posts: 1,903
Likes: 0
From: NC
This stuff is great and WAY cheaper than Dynamat:
http://www.edesignaudio.com/edv2/pro...products_id=52
If you type "forum" in the search on that site, you can get it for $1.28 a sq. ft. Hard to beat that!
I used a good deal of it in my wife's xB and it made a HUGE difference. No door rattle and the speakers came to life.
http://www.edesignaudio.com/edv2/pro...products_id=52
If you type "forum" in the search on that site, you can get it for $1.28 a sq. ft. Hard to beat that!
I used a good deal of it in my wife's xB and it made a HUGE difference. No door rattle and the speakers came to life.
Team Owner
Joined: Feb 2000
Posts: 51,504
Likes: 6
From: Sacramento CA
Edead is garbage, it's cost innefective and has poor adhesion. Experience speaking here. I decided to go 'cheap' and that lead me to learning a lot about damping in a short amount of time.
GOOD alternatives are:
Raamat BXT from Raamaudio - This is what I use now. Good stiff foil backing, decent butyl layer. VERY sticky. $1.90 a square foot, and WELL worth it.
SecondSkinAudio Damplifier. - Widely regarded as the best on the market, more expensive than BXT.
Rick @ Raamat has the best customer service skills I've ever encountered. That guy is on it. Anthony @ SecondSkin is a good man too. I get my acoustic barrier stuff from him (luxury liner.)
Anyway...
It can make some impact in road noise, but not a lot. You pretty much have to put it everywhere. The main goal of damping material is to reduce panel resonance and structure borne noise.
For road noise... What really did it for me was this material called Luxury Liner. It's a thick open cell foam with a vinyl barrier layer. I put 36lbs of it in my car this last weekend... Made panels hard to fit, but made a nice reduction in road noise.
GOOD alternatives are:
Raamat BXT from Raamaudio - This is what I use now. Good stiff foil backing, decent butyl layer. VERY sticky. $1.90 a square foot, and WELL worth it.
SecondSkinAudio Damplifier. - Widely regarded as the best on the market, more expensive than BXT.
Rick @ Raamat has the best customer service skills I've ever encountered. That guy is on it. Anthony @ SecondSkin is a good man too. I get my acoustic barrier stuff from him (luxury liner.)
Anyway...
It can make some impact in road noise, but not a lot. You pretty much have to put it everywhere. The main goal of damping material is to reduce panel resonance and structure borne noise.
For road noise... What really did it for me was this material called Luxury Liner. It's a thick open cell foam with a vinyl barrier layer. I put 36lbs of it in my car this last weekend... Made panels hard to fit, but made a nice reduction in road noise.
Last edited by Kale; Oct 24, 2007 at 10:57 AM.
Racer
Joined: Sep 2007
Posts: 261
Likes: 4
From: CLT NC
I went with a combination of (B-Quiet + Crazy Cowboy). I installed 50 sq. ft. of the B-Quiet Extreme all over the entire car. The weight of this stuff is awesome. The entire roll came in at about 16lbs. It is very tacky and can be trimmed easily.
Here is a comparison chart they have for some more info:
http://www.b-quiet.com/compare.html
The Cowboy insulation is awesome too. It is very lightweight (about 5lbs to do entire car) and it help cut down on not only the interior noise level, but also on the heat that comes through the firewall and tranny.
http://forums.corvetteforum.com/show...t=crazy+cowboy
Overall, I've very satisified with this combo set-up and it seems to offer 3 benefits:
1) It didn't add alot of weight (about 20lbs total).
2) It definitely cut down on road noise and helped clean up the acoustics of the car.
3) It also cut down on the interior heat levels.
Here is a comparison chart they have for some more info:
http://www.b-quiet.com/compare.html
The Cowboy insulation is awesome too. It is very lightweight (about 5lbs to do entire car) and it help cut down on not only the interior noise level, but also on the heat that comes through the firewall and tranny.
http://forums.corvetteforum.com/show...t=crazy+cowboy
Overall, I've very satisified with this combo set-up and it seems to offer 3 benefits:
1) It didn't add alot of weight (about 20lbs total).
2) It definitely cut down on road noise and helped clean up the acoustics of the car.
3) It also cut down on the interior heat levels.
Thread Starter
Safety Car
Joined: May 2002
Posts: 4,659
Likes: 82
From: Toronto ontario
Appreciate the responses guys. If you guys can help me out some and tell me generally how I should do it I would be in your debt. it's a 93 C4 coupe. I basically want to quiten down the car considerably and also have the sound system sound much cleaner. I also want to have some heat reflection on the floor and trans tunnel because of the headers which radiate alot of heat. I plan on covering the doors, the floor and tunnel with the console removed and the rear compartment. I want to cover the doors too.
Should I be using Dynomat extreme everywhere? I know there are cheaper alternatives but I prefer to use dynomat because of their track record. Some people say the other stuff is just as good but lets face it how many people cover their cars twice. I'm not too concerned about the weight as my new 375 ci 520 rwhp LT4 stroker will make up for it
ANy thoughts or suggestions would be appreciated. I'm sure there are some of you who have done it and would do it differently 2nd time around please share !
Should I be using Dynomat extreme everywhere? I know there are cheaper alternatives but I prefer to use dynomat because of their track record. Some people say the other stuff is just as good but lets face it how many people cover their cars twice. I'm not too concerned about the weight as my new 375 ci 520 rwhp LT4 stroker will make up for it
ANy thoughts or suggestions would be appreciated. I'm sure there are some of you who have done it and would do it differently 2nd time around please share !
Thread Starter
Safety Car
Joined: May 2002
Posts: 4,659
Likes: 82
From: Toronto ontario
Ok everything I can dip up says B-quiet Ultimate is just as good and 1/2 the cost. ANyone used B-quiet Ultimate before?
Forgot to add I plan on using the cowboy material on top of whatever product I use first so 2 layers. Cowboy sells his kits precut which I like and its thin so i can only imagine it'll add a little quietness.
Forgot to add I plan on using the cowboy material on top of whatever product I use first so 2 layers. Cowboy sells his kits precut which I like and its thin so i can only imagine it'll add a little quietness.
Last edited by 5abivt; Oct 24, 2007 at 05:18 PM.
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
Former Vendor
Joined: Nov 2005
Posts: 8,995
Likes: 2
From: Spring Texas
St. Jude Donor '08
consider this site:
http://www.sounddeadenershowdown.com/
I'd reccomend Second Skin's Damplifier Pro. It's more massive than dynamat extreme (which is a good product but the SS stuff is superior IMO) It's also less expensive.
It's only downfall is that it's slightly less sticky. However if you clean the surface to be adhered to with rubbing alcohol, there's plenty of stick. I HIGHLY reccomend using a roller to apply it. I believe Home depot or lowes makes a two handed roller for maximum pressure.
http://www.sounddeadenershowdown.com/
I'd reccomend Second Skin's Damplifier Pro. It's more massive than dynamat extreme (which is a good product but the SS stuff is superior IMO) It's also less expensive.
It's only downfall is that it's slightly less sticky. However if you clean the surface to be adhered to with rubbing alcohol, there's plenty of stick. I HIGHLY reccomend using a roller to apply it. I believe Home depot or lowes makes a two handed roller for maximum pressure.
Team Owner
Joined: Feb 2000
Posts: 51,504
Likes: 6
From: Sacramento CA
Appreciate the responses guys. If you guys can help me out some and tell me generally how I should do it I would be in your debt. it's a 93 C4 coupe. I basically want to quiten down the car considerably and also have the sound system sound much cleaner. I also want to have some heat reflection on the floor and trans tunnel because of the headers which radiate alot of heat. I plan on covering the doors, the floor and tunnel with the console removed and the rear compartment. I want to cover the doors too.
Should I be using Dynomat extreme everywhere? I know there are cheaper alternatives but I prefer to use dynomat because of their track record. Some people say the other stuff is just as good but lets face it how many people cover their cars twice. I'm not too concerned about the weight as my new 375 ci 520 rwhp LT4 stroker will make up for it
ANy thoughts or suggestions would be appreciated. I'm sure there are some of you who have done it and would do it differently 2nd time around please share !
Should I be using Dynomat extreme everywhere? I know there are cheaper alternatives but I prefer to use dynomat because of their track record. Some people say the other stuff is just as good but lets face it how many people cover their cars twice. I'm not too concerned about the weight as my new 375 ci 520 rwhp LT4 stroker will make up for it
ANy thoughts or suggestions would be appreciated. I'm sure there are some of you who have done it and would do it differently 2nd time around please share !
dynamat is good... but it's outdated, there are better products available now.
Cybercowboy kit will probably be more reduction, but mostly high frequencies. It doesn't have the thickness or mass needed for lower frequencies. I dont know if he offers one for the C4 or not.
Luxury Liner is probably the best you can get for noise reduction. I'm using it in my C5. It makes it very hard to get interior panels back on, and it has to cover EVERYTHING.
Think of sound like water... Are you going to float by building a boat with holes in it? No.
Last edited by Kale; Oct 24, 2007 at 05:59 PM.
Thread Starter
Safety Car
Joined: May 2002
Posts: 4,659
Likes: 82
From: Toronto ontario
I'll admit I have been to that site before and read the whole comparo. i completely forgot about the products in it. Is it safe to say Damplifier pro will do a great job for me? I like the fact that they describe it as a heat barrier as well which I really want for my floor and trans tunnel . I'm thinking to use the luxury liner on top of the damplifier pro on the doors to help the noise there.
One thing c4s are known for are extreme resonance. my car in particular would make anyones head explode. Im certain alot of the resonance would be removed with matting in the rear hatch but I was also thinking to add some under the car on the bottom side of the hatch/trunk area. Does this make any sense or do these absorb more than actually reflect any sound ?
One thing c4s are known for are extreme resonance. my car in particular would make anyones head explode. Im certain alot of the resonance would be removed with matting in the rear hatch but I was also thinking to add some under the car on the bottom side of the hatch/trunk area. Does this make any sense or do these absorb more than actually reflect any sound ?
Drifting
Joined: Oct 2005
Posts: 1,903
Likes: 0
From: NC
I've also tried both eDead and RAAMat. I found both to be quite similar and just went with the eDead for the price.
Both are 60Mil thickness and both use Butyl core for their dampening.
The RAAMat did have a bit more rigid feel to it, which I thought made it a big harder to apply. I didn't have any adhesion issues with either product. Not sure why the guy above did, but I've used it on my wife's xB and my old Mustang and had great results.
Either way, both are good products, it just comes down to your own preference.
The bottom line is, you can find deadening material online that is just as good if not better than Dynamat, and for a fraction of the cost. So whatever you go with that people have mentioned here, you'll save a good deal of cash and have good results.
Just to show you, here's a couple pics of the process on my wife's xB:
Door before:
Door after:
Also did the rear hatch interior, the rear corners where the speakers are, and under the rear deck where the sub is.
Both are 60Mil thickness and both use Butyl core for their dampening.
The RAAMat did have a bit more rigid feel to it, which I thought made it a big harder to apply. I didn't have any adhesion issues with either product. Not sure why the guy above did, but I've used it on my wife's xB and my old Mustang and had great results.
Either way, both are good products, it just comes down to your own preference.
The bottom line is, you can find deadening material online that is just as good if not better than Dynamat, and for a fraction of the cost. So whatever you go with that people have mentioned here, you'll save a good deal of cash and have good results.
Just to show you, here's a couple pics of the process on my wife's xB:
Door before:
Door after:
Also did the rear hatch interior, the rear corners where the speakers are, and under the rear deck where the sub is.
Team Owner
Joined: Feb 2000
Posts: 51,504
Likes: 6
From: Sacramento CA
The rigid part is a big part of what makes the Raamat so much better than the edead.
Here's a pic of my edead, a few months old. Notice that not only is the edead falling off, but the stupid plastic layer is coming off too:
I peeled the edead out of my doors. A little bit of Raamat did a better job of reducing door resonances than the large amount of edead I had on it...
Here's a pic of my edead, a few months old. Notice that not only is the edead falling off, but the stupid plastic layer is coming off too:
I peeled the edead out of my doors. A little bit of Raamat did a better job of reducing door resonances than the large amount of edead I had on it...
Last edited by Kale; Oct 24, 2007 at 10:57 PM.
Team Owner
Joined: Feb 2000
Posts: 51,504
Likes: 6
From: Sacramento CA
In a c4, I think 63 will pretty much do all of these areas.
double up in the flattest, largest areas.
Former Vendor
Joined: Nov 2005
Posts: 8,995
Likes: 2
From: Spring Texas
St. Jude Donor '08
I used 80 sq feet and covered the following:
- Entire cargo area
- Doors (outer, inner and panel)
- Wall behind the seats
- Floor boards
- sides of the tunnel
I did not deaden the following areas:
- Any parts of the roof
- The far forward part of the floor board
Drifting
Joined: Oct 2005
Posts: 1,903
Likes: 0
From: NC
I got 75 sq feet and was able to do:
Wife's xB:
- Driver door
- Passenger door
- Rear hatch
- Rear quarter panels
- Under rear storage area
My first Corvette:
- Driver door
- Passenger door
And I had a bit left over, and put it on pretty heavy in the xB.
Wife's xB:
- Driver door
- Passenger door
- Rear hatch
- Rear quarter panels
- Under rear storage area
My first Corvette:
- Driver door
- Passenger door
And I had a bit left over, and put it on pretty heavy in the xB.
Safety Car
Joined: Jan 2006
Posts: 3,566
Likes: 4
From: Mt Laurel NJ
St. Jude Donor '06-'07
How do you gentlemen feel about the paint on products like Firewall , Firewall sludge, liquid Edead, etc? Is it worth the time and money, or just a waste?
Last edited by RandyJ75; Oct 27, 2007 at 08:37 PM.
Team Owner
Joined: Feb 2000
Posts: 51,504
Likes: 6
From: Sacramento CA
I heard spectrum sludge VERY thick works best... Ant (the man himself, right?) said its best on one side, with mat on the other.