I see that all of these car t.v. shows like Overhaulin and so on always use a modern insulation like Dynamat. I bought the original type flooring insulation, which is way cheaper on Rick's site. Is anyone else using original? Is it worthless or just not very good?

I have never been in a car with modern insulation so I'm just wondering why it is so popular vs the old stuff.

Should I just eat the $ that I spent on original or go with modern? Opinions needed.

the old stuff is mostly a vibration dampener. The new stuff works to reduce noice and vibration (sometimes as well as heat) in the car. It's expensive and has the potential to add an additional 100 pounds to the car. When I do mine I'll use a product called lizardskin. Its a roll on that costs the same as dynamat and is lighter.

David

On the other hand, if you didn't mind the noice level before, just stick with the old stuff. It comes down to preference.

I don't understand the need for such noise dampening insulation. We install big thumping cams, ground shaking exhaust and then don't want to hear it while we're cruising down the road! Hell, I don't even want to hear the radio!

Mike

I did it more to control vibration and rattling than noise.

I used this stuff from JC Whitney, it's like half inch thick with foil on one side. It does a decent job, and is cheap. I used the original style jute padding with under the carpet on top of it.

I used dynamat inside the cavities where my speakers are, and under the subwoofer box. Stuff is worthless, expensive, and wieghs a ton.

bearcat44 tell me more about the lizard skin stuff,heard about it a little,does it do a good job on heat and noise...how does it apply,hows the clean up prossess etc

Well, I guess I'm not missing out on too much. I won't be putting in an Overhaulin type stereo, maybe some coaxials in the front/rear and a two knobber Kenwood.

Thanks.

67pat, I haven't used it yet since i'm a ways from that stage of the project. But from what I hear its great. Its lightweight and you can apply as much or as little as you want (unlike the adhesive stuff that only allows a certain thickness. It is two-stage but you can only do one of them if you want. The first is a heat reducer which also does minimal sound and vibration dampening. The second is the opposite and they work great when used with eachother. Also, you can either spray or roll it on. I believe it's $200 to get enough for an entire car and it comes in plastic buckets... Thats all I really know about it.
As for Mike, I love to hear my car while I'm outside it but would prefer to keep my hearing and be able to talk to someone with out yelling while driving down the road. And after about an hour on the highway the loud droning can get a tad annoying. As I stated earlier its merely preference.

David

The products you guy need to look into are made by Cascade Audio Engineering. The guy that started the company used to work for NASA or a contractor of NASA and he used alot of the things he learned working on the space shuttle to design his products. The products he makes actually work and use some unusual techniques to avoid the weight gains you get with stuff like Dynamat.

Dynamat is a petroleum based product and works on the principle of weight meaning if something is heavier it is less likely to vibrate or make noises. It does very little for actual sound blockage except for the fact that there is more material for the sound to transfer through.

CAE makes various products such as spray on materials, stick-on, and various other materials for specific applications. These guys really know their stuff and can help you any way you need it. CAE is hands down the best company I have ever worked with for these types of products. Don't take my word on this though, visit their website and check them out. www.cascadeaudio.com

You have to look past the f**d Rustang on their website.:D

I have an insulation product that I have personally used and highly recommend. It is a closed cell polyethylene core with pure polished aluminum on both sides. It will not collect moisture and mildew like some other products. It is a great radiant heat barrier and noise deadener. It is lightweight and priced right. You can get more info at www.lobucrod.com.