I see there have been many discussions on eliminating road noise, including the obvious dynamat on floor to the unique foam on the rear shelf for 2019 amd older models.
However, and somebody who is very engaged in audio science, I took a very different look and approach and it has worked!
So what different did I do?
If you see any speaker, you will see that the foundation of sound reproduction is designing the box. A speaker without a box is barely audible. Put that driver in a box and voila!
With that in mind my hypothesis was that the frunk and the trunk well are acting the same as speaker boxes and amplifying the road noise.
To test it out, I went down the path of insulating and isolating the frunk and the trunk well with simple bubble wrap on the floor of both the frunk and trunk well. On top of the bubble wrap, I placed the rubber mats to keep them down.
I then waited for my wife to take the car out to shopping and who had no idea of what I was doing in the garage.
After she came back from running her errands and shopping, she remarked over dinner that the car was very quiet today and almost no road noise, even over the rough worn out concrete roads outside the neighborhood. She then stared into my eyes and asked “What did you do?”
Then I also took out the car for a ride and yes! The car is almost as quiet as my mercedes S class.
I hope this helps anybody who is interested in reducing road noise on their Model 3.
By the way, this is the bubble wrap I used that I had some in my garage.
Double Bubble Reflective Thermal Aluminum Foil Radiant Heat Vapor Barrier Insulation: (24" X 10 Ft) Heavy Duty (Water Proof No Tear): Walls Windows Garages Attics Air Ducts HVAC Vehicle Etc https://a.co/d/iH9Pemw
However, and somebody who is very engaged in audio science, I took a very different look and approach and it has worked!
So what different did I do?
If you see any speaker, you will see that the foundation of sound reproduction is designing the box. A speaker without a box is barely audible. Put that driver in a box and voila!
With that in mind my hypothesis was that the frunk and the trunk well are acting the same as speaker boxes and amplifying the road noise.
To test it out, I went down the path of insulating and isolating the frunk and the trunk well with simple bubble wrap on the floor of both the frunk and trunk well. On top of the bubble wrap, I placed the rubber mats to keep them down.
I then waited for my wife to take the car out to shopping and who had no idea of what I was doing in the garage.
After she came back from running her errands and shopping, she remarked over dinner that the car was very quiet today and almost no road noise, even over the rough worn out concrete roads outside the neighborhood. She then stared into my eyes and asked “What did you do?”
Then I also took out the car for a ride and yes! The car is almost as quiet as my mercedes S class.
I hope this helps anybody who is interested in reducing road noise on their Model 3.
By the way, this is the bubble wrap I used that I had some in my garage.
Double Bubble Reflective Thermal Aluminum Foil Radiant Heat Vapor Barrier Insulation: (24" X 10 Ft) Heavy Duty (Water Proof No Tear): Walls Windows Garages Attics Air Ducts HVAC Vehicle Etc https://a.co/d/iH9Pemw