I am thinking of going with B-quiet
http://www.b-quiet.com/
It seems like decent stuff.


The folks I know who do car audio use this stuff:
http://www.hushmat.com/Performance/index.htm


So I wrote to B-quiet and they emailed me back a couple of times.

Here are the emails:


Here is what the sales guys said to my emails at B-quiet:



Robert,

I would suggest B-Quiet Ultimate throughout the vehicle to control structural borne noises, such as rattles, resonances, vibrations and also to slow the propogation of road/engine/exhaust noise into the cabin.

If you're looking for an even better reduction of road/engine/exhaust noise, I would suggest a layer of Lcomp (or Vcomp) over top of the Ultimate on the floor, lower interior firewall and rear wheel well areas to absorb and block airborne noises.

I would recommend 100 sq. ft. of Ultimate and optionally 30 to 50 sq. ft. of Lcomp/Vcomp for your vehicle. You also might consider a sheet of Hliner for under the hood to further reduce engine noise levels inside the cabin.

Thank you for your interest in B-Quiet. If you have any further questions, please let us know.

Wade
--
B-Quiet Sound Deadening Materials
http://www.b-quiet.com/
877-7-B-QUIET (877-727-8438)



Another email responding to me asking about the hoodliner, called the Hliner:


Robert,

Most OEM hoodliner are primarily designed as a fire blanket (to fall and smother the flames in the event of an engine fire) so they aren't overly effective at sound control. You should remove the OEM liner, install the Hliner, the re-install the OEM one for the fire control capability.

B-Quiet Ultimate is the best choice for the headliner.

If you'll already have the interior apart for the stereo, the time to add our materials would be pretty minimal - maybe a day or so - depends on how quickly you work and if you have anyone helping.

Most customers will take a weekend to cover a vehicle, but that includes time to remove and re-install the interior pieces.

If you have any further questions, please let us know.

Regards,
Wade



So, any thoughts? Has anyone done the sound deadening in the HHR to a large degree other than just around their subs?
If so, what mat is better or are they all pretty much the same?
I do know the petrolium based ones can smell in hot weather, so they will be avoided.


The local car stereo folks say no to sound deadening material in the engine compartment. From some experiences they shy away as this can cause airflow constriction and engine overheating. I just wonder if the HHR would have any problems in this regard?

 

Man, the HHR is by far THE quietest ride I've ever had. It's much quieter than my wife's '06 Accord! How quiet do you need it?

Maybe you should consider changing tires first to quieten your ride?

 

i was thinking the same thing Mike. I was listening to the video, the volume was at 20%

i could barely hear the CGS/924 combo even when i was hitting it hard and the camera was attached to the mirror up front where it is louder.

it is quieter than our Equinox and my daughters cobalt but just barely quieter than the cobalt. it is quiet a s well.

 

I am also going to sound deaden the floor, (doors already done), hood, and possibly the headliner. Definitely allows you to turn the sound system down 3db and gives you better overall sound. I am looking at product now, this is one that allot of web audio forum guys think is great http://www.raamaudio.com/cgi-bin/index.cgi?p=hm



Joe

 

here are some more products for y'all to look at, i researched this awhile ago for my classic stang...........

I like this for the engine compartment, but haven't bought it yet

http://www.cabinsulation.com/engine.htm

This I have used for trying to keep the exhaust drone out of my passenger compartment with limited success..........mostly because on my ragtop, there is a direct sound path from the trunk to the passenger compartment.....

http://www.cascadeaudio.com/prod/dampers.html


fwiw

mud

 

I know the drone fight with the convertibles
I've been fighting my '67 Corvair for years. With the 140 four carb, air cooled, dual exhaust, it needs to breath, and breath I let it! Man are those Ford Ranger mufflers loud. Not quite Harley loud, but loud!

Our '64 ragtop has duals also, but is a much quieter machine.
While I love ragtops, I'm getting a bit worn out from the road noise. Now I usually have earplugs in. Too many semis to pass on the highway

Thanks for the link. So many choices......

 

I know, I must be overreacting to my Imco scare


Yeah, I'll be changing tires as well later on. The tires on our Saturn were Firestones too and they made quite the howl as the wore thin. I'm thinking of Yokahama Avids. Dunno yet. I'll stick with 17's. They are good enough for our family car.

Let's see, when I'm not ragtopping it ( loud with earplugs ), I have been driving Olds 98s, Buick Park Avenues, Electras, Fleetwoods, you get the drift. Large American Iron
The one that got away was the '79 Riviera. I always wanted one of those.........

These days our other daily driver is a Buick Rainier, the "Tiger Woods "car

I need things quiet and music clean and loud. Ambient noise is the enemy of all free people
I have nerve damage in one ear and need things quite in order to not have melt downs. Certain noises make the right side of my face go numb for days at a time. Most everything I hear from that ear sounds like is coming through a snare drum or has the sound of a phase shifted push button phone added to the mix. On real bad days my bad ear takes the frequencies I hear and re modulates them down in pitch enough to create a huge dissonance with the sound coming in through the other ear. The difference is almost a quarter tone. I put the giutar away during those bouts.

I get involuntary muscle spasms on my right side just thinking about sudden loud noises. Never mind when the actually do happen. Good thing I'm not a cop
So there are days and weeks on end where things just are not good. I am trying to make the times in the car more pleasant.
If I play clean music things go well. If I hear squauky midrange and no real bass/treble ( Like an old AM radio) then my teeth automatically grind and the right side of my face goes numb.

Gotta have music clean and often loud. At other times the ear is so sensitive I can hear way too much. It is all filtered through squeals of tinitus still ringing in my head from the firecracker that blew the hole in my eardrum in '78. So kids, don't think a firecracker cant screw with you, it can!. I aint been right since...............

All the doctors say is they may be able to tell more about the problem after the autopsy! Great bedside manners these folk have.........

Back to the HHR. We may as well add the sound deadening since the car will be opened up for speakers .amps, etc.

 

A bodyshop here in town uses dynamat extreme in their hot rod builds. Im sure a bulk kit of it would do the trick. http://www.dynamat.com

 

http://www.secondskinaudio.com/cgi-bin/index.cgi

by far the best... all i use