Time to lower the road noise / NVH sound level - my DIY sound deadening material install project

[jlatigo]

This weekend i decided to tackle the higher than used to road noise levels on our 2 door. After gutting the interior i am surprised that other than the carpet there is nothing to help keep outside noise at bay.

Taking the interior apart was fairly easy and took under 2 hours to get it done, after a good cleaning of all the panels it was time to lay some killmat down followed by some silex foam, and some sound absorbing felt material on the plastic panels and wheel well cavity. The rear wheels line up pretty close to your ears on the 2 door, i was surprised that there is nothing there to help with the road and tire noise. All the panel clips were lines with tesa tape before reinstalling. I still have the doors to get done(ran out of material) ,but even now the drop in road noise is very noticeable, and the bronco feels more solid.

As long as we had the interior apart we also replaced some of the speakers, the B&O is lacking and the Infinity speakers made it sound much much better.

Overall a good rainy weekend project

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[CheekyOldMan]

Too bad you didn’t download a decibel meter app to compare.

 

[604Bronco]

Did you do any sound level readings before/during/after your project? Would be great to see them.

Well done!

Edit: Damn you @CheekyOldMan !

 

[jlatigo]

Too bad you didn’t download a decibel meter app to compare.

i agree, it's a bad habit of mine, at least on this project i took some pictures lol

 

[jlatigo]

Did you do any sound level readings before/during/after your project? Would be great to see them.

Well done!

Edit: Damn you @CheekyOldMan !

i wish it had crossed my mind to get some readings, but going from no insulation to a couple of layers, it's a noticeable difference. Top wind noise stands out a little more though.

 

[CheekyOldMan]

It’s never too late to rip it out and take some measurements!

 

[jlatigo]

It’s never too late to rip it out and take some measurements!

I'm sure I'll be helping a friend do the same to his in the near future, he actually thinks things through much better than me, he will take some readings.

 

[AK007]

This weekend i decided to tackle the higher than used to road noise levels on our 2 door. After gutting the interior i am surprised that other than the carpet there is nothing to help keep outside noise at bay.

Taking the interior apart was fairly easy and took under 2 hours to get it done, after a good cleaning of all the panels it was time to lay some killmat down followed by some silex foam, and some sound absorbing felt material on the plastic panels and wheel well cavity. The rear wheels line up pretty close to your ears on the 2 door, i was surprised that there is nothing there to help with the road and tire noise. All the panel clips were lines with tesa tape before reinstalling. I still have the doors to get done(ran out of material) ,but even now the drop in road noise is very noticeable, and the bronco feels more solid.

As long as we had the interior apart we also replaced some of the speakers, the B&O is lacking and the Infinity speakers made it sound much much better.

Overall a good rainy weekend project

That looks great! I hope to do the same when my Wiltrak comes in, but I'd like to swap the carpet for the rubberized floor and add sound deadening to the hardtop panels as well!

 

[jlatigo]

That looks great! I hope to do the same when my Wiltrak comes in, but I'd like to swap the carpet for the rubberized floor and add sound deadening to the hardtop panels as well!

the carpet looks like it will be fine if it gets wet, it's bonded to a closed cell foam underlayment, just need to add the drain plugs

 

[2020FordRaptor]

i wish it had crossed my mind to get some readings, but going from no insulation to a couple of layers, it's a noticeable difference. Top wind noise stands out a little more though.

Well if you get a reading now I'm sure some other 2 door owner will get you there stock rating.

 

[2020FordRaptor]

This weekend i decided to tackle the higher than used to road noise levels on our 2 door. After gutting the interior i am surprised that other than the carpet there is nothing to help keep outside noise at bay.

Taking the interior apart was fairly easy and took under 2 hours to get it done, after a good cleaning of all the panels it was time to lay some killmat down followed by some silex foam, and some sound absorbing felt material on the plastic panels and wheel well cavity. The rear wheels line up pretty close to your ears on the 2 door, i was surprised that there is nothing there to help with the road and tire noise. All the panel clips were lines with tesa tape before reinstalling. I still have the doors to get done(ran out of material) ,but even now the drop in road noise is very noticeable, and the bronco feels more solid.

As long as we had the interior apart we also replaced some of the speakers, the B&O is lacking and the Infinity speakers made it sound much much better.

Overall a good rainy weekend project

Definitely considering this when my Wildtrak comes in.

 

[Duke460]

Did you put any killmat in the doors?

 

[Blaven]

I guess my ears aren't so sensitive yet at the young age of 44. But I notice really no road noise in mine. And I love the sound with the doors and top off. I even had someone ask me if the Bronco was electric. But nice project if it helps you.

 

[Ksjrb03]

The doors made the biggest difference for me. My FE had a decent layer of sound absorption under the carpet though. The hardtop wind noise is a different beast.

 

[83XLT]

I'm considering something similar...just to dampen the hollow sound going over bumps with the top on. Curious why you used kilmat and silex. I assume you used the felt on the plastic because it's lighter weight?

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