Has anyone insulated their car with dynamat

 

I have everything but the very back and I am going to do this winter.

 

Did it make a big differance in sound and heat

 

I did the rear only along with Vettenuts insulation and a cargo mat. Didn't notice a difference noise wise. Maybe if I did the front and doors....

 

That's some installation! If it didn't help out with the noise then I'm not sure anything would.

 

The key to killing road noise is to do the complete car. We offer the foil kit pictured above along with a thin layer of Ensolite and it makes a huge difference. Mr car has a 408 stroker, catless and is quite on the inside with no road noise. We have not had time to do my Fathers car, he drove my car last weekend and could not believe the difference in the two identical cars.
Needless to say his car is being done during Xmas with a full double din, 5 channnel arc amp, 2 of our sub boxes w/10" JL's, new component speakers, Insulation Kit and Vettebin. Whew thats a big Xmas present

You only have one Dad why not spoil em.

Oh i forgot 4 new C6 Z06 shocks.

Here are a few pics with both layers.

 

The easiest way reduce the noise is get rid of the good/craps....

 

First off... And i keep saying this... Dynamat is one of the worst things you can use for insulation! Dynamat (normal or Xtreme) is a vibration damoening material. It is designed to prevent body panels from vibrating, and creating noise. It will block some sound, but it's only a side effect, and youre paying a lot of money for a side effect.

The proper use for Dynamat and other dampening materials is in a 30-50% cover of the panel, to prevent vibration of the panel, and having the panel creating sound. Then, lay a sound barrier over the Dynamat and panel. The sound barrier has to cover 100% of the interior, otherwise the 10% that's uncovered can be almost as loud as no coverage. Common sound barrieres are closed cell foams like Ensolite. Less common sound barriers combine the closed cell foams with decoupling materials to stop vibration transmissions between layers of foam. Or you could just lay down a couple of layers of a sound barrier, and have good results for a third of the price.

I did mine just like F65MPH. It definitely helped with exhaust drone (SLP PowerFlo), and made a small difference in road noise. Much bigger difference when I did the doors.

As Marc mentioned, you sort of have to do the whole car to really help with just road noise. Imagine having a room filled with screaming babies. If you take half of the babies out, but they're all from the farthest part of the room, you probably won't notice much of a difference. The car will only be as quiet as the noisiest part. So if you dont quiet the noise coming from the doors and floor, you won't be quieting the loudest part, and you won't notice much of a difference. It's a different matter if you're trying to quiet exhaust drone, which is a combination of external noise, and vibration of the rear hatch floor.

 

Marc - I haven't heard the difference, but you might think of adding some dampening material (Dynamat Xtreme, or RaamMats BXT II) to the panel before you put down the Ensolite and insulation. Not sure if the car's a C6 or Z (with the honeycomb floor), but it's a fairly large, flat panel. With the C6 material, there's definitely potential for the floor panel to be adding noise on it's own. There have been a few members who have reported good results adding dampening materials under the floor.

 

Do the wall behind the seats this is where most of the noise comes from.
z51vett

 

I thought about doing the sound insulation but that was before I got my new Michelin's. I'm also one of the rare old farts that is happy with the stock exhaust, so no problem there either.

 

Very well said.


I'm getting ready to do my whole car this winter. I will be posting a thread about it when I'm done.

Also changing over to Michelin PS2 run flats.