what are you guys doing for noise deadening?

[severous01]

i'm lookin to buy 16's with a 205/45/16 so noise shouldnt be comin from tires with that setup. i'm hearing most of my noise from where my feet are in the cab...by the pedals. and also comin from the rear...where the shocks are apparently.

i want to soften the sound, not eliminate. so i'm wondering what all you guys are doing to make the care quieter....not silent.

where did you put the dynomat or whatever material you're using? floorboard? doors? firewall? freakin roof?

what had the most effect? where would you start if you had to do it again on a new yaris HB?

[talnlnky]

Originally Posted by severous01

i'm lookin to buy 16's with a 205/45/16 so noise shouldnt be comin from tires with that setup. i'm hearing most of my noise from where my feet are in the cab...by the pedals. and also comin from the rear...where the shocks are apparently.

i want to soften the sound, not eliminate. so i'm wondering what all you guys are doing to make the care quieter....not silent.

where did you put the dynomat or whatever material you're using? floorboard? doors? firewall? freakin roof?

what had the most effect? where would you start if you had to do it again on a new yaris HB?

If you have subs in the hatch you'd want to deaden that part too. Even if you don't have subs, i'd say to put 1 layer of mat down in the back. The firewall, floorboards, and wheel wells seem to be the main culprits in the HB. The foot area behind the front seats is VERY Flimsy, I actually put 3 layers of mat, then a layer of ensolite foam, and honestly, I still feel it could be better (but its good enough).

In my setup I put at least 2 layers on all the floor
1 layer on the wheel wells
At least 1 layer on the side panels (behind the doors.
And 1 layer of foam everywhere.

When I have subs in, they are only dual 8's so I don't cause any rattles in the hatch. Driving around I notice most of the noise comes from up front... I need to hit the wheels a bit more, the firewall for sure.. the front doors... and possibly even the front floor a bit more.

Since you drive in the front... i'd focus most on the front of the car for noise.


as a side note... i'm really starting to think about ripping the dash apart and matting and foaming it... because at 27k miles i'm not getting dash rattle... I'll talk to the dealership... it may be covered... there's a TSB on it...

[WolfWings]

Originally Posted by talnlnky

The firewall, floorboards, and wheel wells seem to be the main culprits in the HB. The foot area behind the front seats is VERY Flimsy, I actually put 3 layers of mat, then a layer of ensolite foam, and honestly, I still feel it could be better (but its good enough).

Very, VERY true. I'll verify this as someone else that's damped out most of their HB, had various audio-philes crawl around the bare-metal vehicle while I rolled over a gravel driveway, one was daring enough to let me take it for a brief spin on the highway and back so he could listen for road-noise spots.

Rear wheel wells and the floorpan under the rear seats are big culprits. The rear hatch itself is actually quite worth laying a good layer of mat inside, though due to needing to get into the guts for lights I don't recommend fully sealing it like a door.

My 3-door Yaris hatchback/liftback has between 1 and 5 layers of RaamMat across everything behind the B-pillar, the 5 layers are on the rear quarter panels behind the rear speakers. That part is just so friggin' flimsy it took that much material to get it to stop going 'ting' when I rapped the sheetmetal on the outside with my knuckles. Most of it's only 2 layers, just one or two spots on the big flat expanse about 3-6 inches below the 'crease' in the bodywork acted like a tom-tom drum.

I subscribe to the 'stop the metalling ting' approach to dampening first though, aiming just to reinforce and stop white-noise from penetrating but still wanting distinct outside noises to be able to punch through. More akin to a Lexus or Benz than a DB Drag Race style, less 'complete seal' and more 'not THAT was a satsifying door to slam' and 'oh crap, what did I just run over?' type.

[talnlnky]

Originally Posted by WolfWings

Very, VERY true. I'll verify this as someone else that's damped out most of their HB, had various audio-philes crawl around the bare-metal vehicle while I rolled over a gravel driveway, one was daring enough to let me take it for a brief spin on the highway and back so he could listen for road-noise spots.

Rear wheel wells and the floorpan under the rear seats are big culprits. The rear hatch itself is actually quite worth laying a good layer of mat inside, though due to needing to get into the guts for lights I don't recommend fully sealing it like a door.

My 3-door Yaris hatchback/liftback has between 1 and 5 layers of RaamMat across everything behind the B-pillar, the 5 layers are on the rear quarter panels behind the rear speakers. That part is just so friggin' flimsy it took that much material to get it to stop going 'ting' when I rapped the sheetmetal on the outside with my knuckles. Most of it's only 2 layers, just one or two spots on the big flat expanse about 3-6 inches below the 'crease' in the bodywork acted like a tom-tom drum.

I subscribe to the 'stop the metalling ting' approach to dampening first though, aiming just to reinforce and stop white-noise from penetrating but still wanting distinct outside noises to be able to punch through. More akin to a Lexus or Benz than a DB Drag Race style, less 'complete seal' and more 'not THAT was a satsifying door to slam' and 'oh crap, what did I just run over?' type.

I actually only did 1 layer.. and then another partial layer over those rear panels. I then laid a layer of ensolite foam over the mat, and loaded that entire gap up with some 2" foam skins (kinda like open cell with a rubber like barrier on one side). I don't run rear fill, so I didn't feel that i needed to do anything more than prevent roadnoise from entering in that panel... If I had speakers mounted there... yeah... prolly would've done 2-3layers on the entire panel.