Adding Sound Dampening (DIY instructions, with photos)

[Eggman]

Then most of the noise must be wind at highway speeds.

[Daox]

I'd agree. As you increase speed, less noise is coming from the chassis and more from the air. A lot of those high end cars have pretty good aerodynamics probably mainly because of noise issues.

[BRagland]

I'd agree. As you increase speed, less noise is coming from the chassis and more from the air. A lot of those high end cars have pretty good aerodynamics probably mainly because of noise issues.

This is what I think too. The bulk of the noise at higher speeds after dampening was wind noise. Though to a lesser extent, it was still very prominent at freeway speeds at or above 65mph.

[Daox]

How much weight did you add to the car through this?

[BRagland]

How much weight did you add to the car through this?

5 rolls of Peel & Stick plus some carpet padding.

The Peel and Stick is anywhere between 7-10 pounds a roll, and I put in 2 square meters of carpet padding, at 10 pounds each.

So total was about 60-70 pounds max. Didn't notice any difference when driving it.

[Daox]

If you were to do it again do you think you could get away with adding less, or would you opt to add more?

[cyclopathic]

Then most of the noise must be wind at highway speeds.

Not exactly:


https://www.fhwa.dot.gov/environment...uide/tnm22.cfm

[cyclopathic]

5 rolls of Peel & Stick plus some carpet padding.

The Peel and Stick is anywhere between 7-10 pounds a roll, and I put in 2 square meters of carpet padding, at 10 pounds each.

So total was about 60-70 pounds max. Didn't notice any difference when driving it.

P&S 6"x25' shipping weight 4lbs per roll.

[BRagland]

I like how this graph confirms my decibel readings were fairly "average". I guess the app isn't so bad, after-all.

I still stand by my observation though. Tire noise, has been quelled very well.

Wind noise, has not be quelled much at all by sound dampening.

Not exactly:


https://www.fhwa.dot.gov/environment...uide/tnm22.cfm

[BRagland]

P&S 6"x25' shipping weight 4lbs per roll.

That's good, but the two rolls I weighed were 7.2 lbs, and the other, 8.1 pounds. That's why I've been giving a range of 7-10 pounds. Seems to vary.

It's asphalt based, and because of "wrinkles" in the foil, the amount of asphalt varies considerably. I guess I got some heavy rolls haha.

Either way: Weight added was very small, so I'm pleased with it.