I was looking at the Exotic Vette kit listed on that other forum:

http://www.exoticvette.com/insulation%20c4.htm

I'm going to be installing a new head unit, amp and speakers, so I'll be tearing apart a fair amout of the interior anyway, so if I'm going to do something like this, that would seem to be the optimum time. Is it worth the extra effort?

You should chat with / PM VTVette. I know he had his car all apart this summer and was showing me where there was still some of the insulation kit in the car. I guess he installed it a couple of years ago and since has taken most of it out. I forget why but assume he wasn't happy with it or it would still be in there. I have know idea what kind or style it was though .

Good-luck

here is the score with insulation:

there are two kinds - the dense thin stuff that kills vibration and resonance.

The other kind is a noise reduction insulation. The best stuff for that is the thin pink stuff used to insulate behind siding.

I plan on using frost king, or something of that nature, followed with a single layer of the pink stuff.

The frost king has a dense foam layer, with a heat reflecting cover. Then the fibreglass layer will kill road noise.

I may even put a layer of truck bed lining down first.

Yeah,

Dense material will dampen out lower frequencies and subsonic frequencies. Don't use it to kill road noise, it won't work. The recycled stuff put in from the factory works great at what it was designed for.


I put some thin fatmat underneath it but should have tried something less dense. Even with two layers on the tunnel I had a hard time fitting the seat hardware back in place. The less dense stuff is necessarily thicker, so you can't put it everywhere.

[quote]
bogus wrote:


The other kind is a noise reduction insulation. The best stuff for that is the thin pink stuff used to insulate behind siding.

quote]


Bogus, this pink stuff you speak of, is it like a fiberglass batting, or is it rigid? I am looking for something to muffle the noise in my work van.

There is a Company called E.A.R. that makes world class noise/heat reduction solutions.

They are a factory and only sell in mega-quantities but if you email them they will put you in touch with one of their distributors.

This stuff is pricey but let me tell you...there is nothing better. It is self adhesive and very pliablewhen you use the right grade.

I've done a Lifted 1991 Ford Ranger 4x4 with A/T tires and it was as quiet as my in-laws' Grand Marquis...

I also did a Lifted 1996 Grand Cherokee with Mud Tires on it and it is like a funeral home inside.

Their website is: http://www.earsc.com

I have collected all my leftover scraps and plan to do my Vette this year...I'll do all the inside body panels...doors, floors, firewall and some of the hood. Use duct tape to seal the seams and edges.


JC