Noise isolation - Toyota Camry, 2.4 L, 2008
In general, the Camry's insulation is not even bad at all. According to my feelings, I can say with confidence that the Camry's sound insulation has only one weak point - this is the wheel arches. Road noise is very clearly audible, especially in winter, on studded tires.
Osbo it did not bother me, and I decided to do soundproofing only because of the installation of acoustics.
It is done with a complete disassembly of the cabin, within two days. All cavities and parts of the cabin were pasted over with noise-insulating materials. Feels like after soundproofing, the cabin is dull, like in a tank, acoustic comfort has become at the level of a Mercedes S class. When you knock on the metal doors and smash the outside of the car, the feeling is that you are knocking on metal 3 mm. In general, the emotions are only positive, the only negative is the greatly increased mass of doors, which are not placed on the opening lock when the car is parked with one side driving into the bardur. They simply open to full disclosure, really, these are only the front doors, with the rear ones, as it was, they are fixed differently.
Hmm. How interesting has the car become?
I read somewhere that a business class car itself is better than others, a lower class due to the very body structure of a business class car. Thicker metal, more stiffeners, better assembly. Therefore, the Camry's insulation is better in itself than that of lower class cars.
I had to see what's inside the Camry's doors - bare metal and plastic holes. That is, it does not exist at all. Maybe there is a small piece of thin felt between the walls of the door. sheet.
… My perceptions regarding sound insulation:
- when driving on water or snow - noise is heard under the bottom and in the rear arches;
- when you accelerate while driving - you can hear enough how the engine works;
- you can hear splashes from puddles hitting the doors when cars drive past through the puddles; and raindrops hitting the roof ...
- you can hear the work of the suspension ... over bumps and joints.
... Therefore, I think insulation is needed not only for arches ...
... That is, if I understood correctly, after this work - it became much better?
I completely agree with you, in business class cars, sound insulation is achieved not by soundproofing materials, but by the body structure. At the plant, the entire body is not rolled with bituminous materials, since, in my opinion, this will greatly complicate the production process. In the doors of the Camry, everything is really exactly like that, only here is a felt mat, not for sound insulation, but for thermal insulation.
"... My perceptions regarding noise insulation:
- when driving on water or snow - noise is heard under the bottom and in the arches at the rear;
- when you gas while driving - you can hear enough of the engine running;
- you can hear splashes from puddles hitting the doors when passing by cars pass through the puddles; and raindrops hitting the roof ...
- you can hear the work of the suspension ... over bumps and joints. "- here I also agree with you, only now I did not pay much attention to it, I was more annoyed by the noise of the wheel arches, which manifests itself in the knocks of the suspension and the noise of water and snow, and especially The
weight of the car, I can say for sure, has increased by about forty kilograms, so much the set of soundproofing materials weighs.
,,,, In general, I think that Shumka is needed where there is not enough of it!
... I say, the acoustic comfort, as in a Mercedes S class, the road is not audible at all, the engine is audible only at rpm above average, and that is very solid, dull. No extraneous road noise annoys, you can not hear any spikes and water or stones. I personally very satisfied.