Cabin noise

Zoren 370 · 03-19-2012, 11:43 AM

Quote:

Originally Posted by chops

i drive a 2006 corolla as a daily driver and the road noise was killer with high performance tires and lowering springs (compared to the cheapo tires it came with). i coated all the wheel wells as well as the doors and road noise was reduced dramatically. although it was pricey, i think i paid like 60bucks for a gallon of the stuff. im thinking of using the leftovers to do the trunk area once the weather warms up (much easier to apply when the weather is warmer)

Hey Chops any update on the noise level after you coated the trunk area? I might just do that... have my Z wheel wells coated by 3M not only it would protect my car from rust and stone chips it would probably lower down the road noise.

Raw_Shark · 03-19-2012, 01:10 PM

Quote:

Originally Posted by Bonzo

Sorry, but there is no way, no way you got it all done in 1 hour. Either you only did a very small portion of the back, or you didn't do a very good job doing it. Heck, unless you've done it all before and are experienced doing it, it takes 10-15 minutes alone to take out all the panels, foam, and spare tire, and another 10-15 minutes to put it all back in. So according to you it only takes 1/2 hour to put in the sound deadening material? You need to buy yourself a watch that works my friend.

I may have taken a lot of time to do it properly and nicely, but even scottIN took 4 hours and he self proclaimed that he did a sloppy job. This is at least a 4 - 10 hour job depending on how picky you are and how many patience you have.

Wow, you must be fun at parties. I was just trying to help people out guy, no need to get your pretty little pink panties in a wad.

If you actually read my post, you'd see that my install was uber simple and I did the bare minimum. My car didn't have spare tire, foam, tools, etc to deal with. I already took that crap out a long time ago. So for me, it was just a matter of removing the trunk panels and slapping the 12 sq ft of B-quiet down and then laying corrugated foam on top of that. So YES, it took me roughly an hour. Maybe it was an hour and 21.50894 minutes? A couple hours? No idea. Next time I'll keep track down to the millisecond.

The point I was making is that you don't have to go all out and dynamat the whole car to get good results. It can be done on the cheap, and quickly. I apologize again for making you PMS so hard.

Switch to decaf, my friend.

Raw_Shark · 03-19-2012, 01:40 PM

Quote:

Originally Posted by Bonzo

I just don't want anyone to be mislead if they are thinking about doing this. It's a royal pain to do, and it takes a while. It's not a wham bam thank you mam job. I think people here considering this should know reality. I know I would.

I'm not misleading anybody. If you only do a small (12 sq. ft) portion of the trunk, it IS a wham bam thank you ma'am job.

Even a very small amount of dynamat/bquiet/etc makes a pretty big difference in these cars.

AndreDekolta · 03-19-2012, 08:03 PM

Just my 2 cents on the noise level. It's a sports car. Not a high-end sports car...but a good one with great lines. It's NOT a stuffy Z4. Or, Audi TT. Etc., etc. There were several things I didn't even consider when I bought mine.

STEREO - I turned it off. I wanted to hear the engine.

ROAD NOISE - Didn't care. Was too busy enjoying a great sports car!

GAS MILEAGE - Didn't care! Ok, when I fill it up...and really only VERY briefly! I forget all about it when I drive away...

It's a gritty car. One with tons of history and fans. I honestly don't even notice the road noise. I'm too busy trying to wipe the smile off my face.

Again...just my thoughts!

Bonzo · 03-20-2012, 09:31 AM

Quote:

Originally Posted by Raw_Shark

Wow, you must be fun at parties. I was just trying to help people out guy, no need to get your pretty little pink panties in a wad.

No panties in a wad here. Sorry you can't handle hearing the truth. You are "one of those" I guess. I'd say you are the one getting your panties in a bunch.

Quote:

If you actually read my post, you'd see that my install was uber simple and I did the bare minimum. My car didn't have spare tire, foam, tools, etc to deal with. I already took that crap out a long time ago. So for me, it was just a matter of removing the trunk panels and slapping the 12 sq ft of B-quiet down and then laying corrugated foam on top of that.

Well for you, doing the bare minimum might have been good enough, and that's great for you. Seriously, I wish that were the case for everyone. Others here felt dynamatting the entire back did nothing at all, and it was only after doing the doors that it made a difference. So one thing this thread has proven is that people have different tolerances for different things when it come to this noise issue. If YOU had read all my posts here, you would know that my ONLY noise issue is the pebbles tinking the inside of the fender wells. Your minimalistic approach would have done about 1% to fix my issue, which basically means it would have done totally nothing; a total waste of time.

Quote:

So YES, it took me roughly an hour. Maybe it was an hour and 21.50894 minutes? A couple hours? No idea. Next time I'll keep track down to the millisecond.

And just who do you think is being the total jack arse here???

Quote:

The point I was making is that you don't have to go all out and dynamat the whole car to get good results. It can be done on the cheap, and quickly.

I think a lot of people here aren't normally all that adventurous in regards to removing panels etc. I know every single one of my friends that saw my car were like, are you crazy? You are an exception. Most people have not torn out all the foam and tire for other reasons etc like you. Most people aren't going to rip all that stuff out only to do a quick fix. Most people, after going through the nervousness of all the panel removal, are going to take the time to do the full blown fix, to get all the improvements they can. I'm glad you are happy with your results, and that's awesome. Again, I think you are an exception, not the norm. I for one did the entire trunk and I'm still not sure about it. If a month from now I don't notice the pebbles I'll be good.

Your 1 hour is not the norm, it's the exception. 4 - 8 hours is the norm.

Quote:

I apologize again for making you PMS so hard.

Me thinks it's you who is a bit over sensitive. Take a chill pill man.

Quote:

Switch to decaf, my friend.

Don't drink coffee, only beer.

Quote:

I'm not misleading anybody. If you only do a small (12 sq. ft) portion of the trunk, it IS a wham bam thank you ma'am job.

Your post I was quoting was misleading. It only mentions that the job takes 1 hour, and without referencing again that you only did a very small portion, becomes misleading. 4-8 hours is the norm, and that's what the ordinary Joe people should know.

Quote:

Even a very small amount of dynamat/bquiet/etc makes a pretty big difference in these cars.

Again, and I mean this sincerely, I'm glad the amount you did made all the difference for you. I'm sure there are others that will agree. But from what I've read here, there are many that will not.

For all,
what I found doing this is that you HAD to cover everything. Using your fingers and knuckles, you can rap on the metal to see where it sound's plinky. Before you start, almost everywhere sounds this way. But even after I covered the entire left half of the flat bottom area, the right was totally plinky sounding, like I had done nothing. Just putting down 1 piece in the middle of an area did not fix the problem either. I had to do everything to eliminate the plink. I do not agree with Raw_Shark.

So to what level you choose to do this is up to you. After doing this myself, I'd say going through all the trouble to yank everything out, if someone isn't willing to spend a measly $100-$200 to do it right, they are just being cheap. They aren't poor because they have this $30,000+ impractical car. I myself was being cheap, because I didn't want to spend $200 to do it. But now after I spent 8-9 back breaking hours doing it, the money seems irrelevant. My advice is not to skimp with stuff from Lowes (and rumors of the potential smell issue don't make me thrilled either), but to buy the best automotive industry made stuff you can find. That doesn't mean more expensive is always better, so I'd search around for a brand you find comfortable with, then buy their highest dampening stuff they have. If you want to do the entire trunk area including the fenders and back wall, it's going to take 9-10 sheets @ 18" x 36". Do less if you want, that's up to you.

Cheers --- Bonzo

RiCharlie · 03-20-2012, 09:46 AM

Bonzo do you ever check your personal messages?

Bonzo · 03-20-2012, 10:21 AM

Quote:

Originally Posted by RiCharlie

Bonzo do you ever check your personal messages?

Sometimes. Message Sent......

Guard Dad · 03-20-2012, 10:25 AM

Just a heads up, I had the wheels off the car yesterday and I checked the rear wheel wells to see how "noisy" they were when tapped with a knuckle. I found that the outer half of the driver side wheel well had a distinct ring to it when tapped. The passenger side rear wheel well was not nearly as bad, probably because the gas filler pipe changes the shape of the wheel well liner. This was after I had done a fairly extensive Dynamat job on the car (see my prior posts early in this thread). I had some rubberized undercoating in the garage so I applied a heavy coating on the outer half of both wheel wells which seemed to make a modest improvement, this should help with "pebble noise" too. My advice would be to include a heavy application of undercoating in the rear wheel wells to complement the application of Dynamat in the interior of the car.

'10Anamoly · 03-20-2012, 11:01 AM

A couple of things to consider..

Dynamat on the inside of the front wheel liners on the front (black plastic) made a substantial difference in volume.
Dynamat (three strips spread evenly) on the metal heat shield above the muffler area stopped all the clangy vibration there.
Dynamat on the doors is a very substantial difference too, more than the floor of the hatch I believe.

gy954 · 03-20-2012, 12:00 PM

MB has a technology that samples the sounds in the cockpit, processes them, and puts out noise cancellation through the audio system that removes road noise, wind, etc. Apparently this technology is smart enough to NOT cancel out normal speech

And you may know that the new BMW M5 produces artificial performance-engine sounds through the audio system to make up for the lame I6 sound it really makes.

Bonzo · 03-20-2012, 02:05 PM

Quote:

Originally Posted by Guard Dad

Just a heads up, I had the wheels off the car yesterday and I checked the rear wheel wells to see how "noisy" they were when tapped with a knuckle. I found that the outer half of the driver side wheel well had a distinct ring to it when tapped. The passenger side rear wheel well was not nearly as bad, probably because the gas filler pipe changes the shape of the wheel well liner. This was after I had done a fairly extensive Dynamat job on the car (see my prior posts early in this thread). I had some rubberized undercoating in the garage so I applied a heavy coating on the outer half of both wheel wells which seemed to make a modest improvement, this should help with "pebble noise" too. My advice would be to include a heavy application of undercoating in the rear wheel wells to complement the application of Dynamat in the interior of the car.

THANK YOU!!!! This is what I have been saying about the pebble noise issue from the beginning. If what I've done so far doesn't help me ignore the pebbles a month from now, I'm going to paint them with rubber stuff too. Glad to hear it makes a difference.

Thanks again --- Bonzo

RiCharlie · 03-21-2012, 07:42 AM

Quote:

Originally Posted by gy954

MB has a technology that samples the sounds in the cockpit, processes them, and puts out noise cancellation through the audio system that removes road noise, wind, etc. Apparently this technology is smart enough to NOT cancel out normal speech

And you may know that the new BMW M5 produces artificial performance-engine sounds through the audio system to make up for the lame I6 sound it really makes.

Damn man did you read that story about the cars of the future I wrote where everything is fake? This thing with the BMW fake engine sounds like that nightmare come true!

New Story

rebe945 · 03-21-2012, 08:27 AM

Just a point. I went to a business that details cars. Installs stereos, everything. They showed a sample of Dynamat to me. It was aluminized on one side, thin with an adhesive gray on the other side. So I went to Lowes and found a product that looked totoally identical but twice as thick. It is made for dampining vibrations and insulating metal ductwork. It was less costly and i cannot imagine what superior material Dynamat uses inside the product that would be substantially different from Frost King. [I]t worked for me and was cheaper.

Evil Sports · 03-22-2012, 05:46 AM

Frost King worked for me too and so far no so called smell.

rebe945 · 03-22-2012, 06:50 AM

Quote:

Originally Posted by Evil Sports

Frost King worked for me too and so far no so called smell.

Smell. Theres no smell.

03-20-2012, 10:25 AM	#443 (permalink)
Guard Dad Enthusiast Member Join Date: Aug 2010 Location: South Orange County, CA Posts: 422 Drives: 2010 370Z Silver A7 Rep Power: 14	Just a heads up, I had the wheels off the car yesterday and I checked the rear wheel wells to see how "noisy" they were when tapped with a knuckle. I found that the outer half of the driver side wheel well had a distinct ring to it when tapped. The passenger side rear wheel well was not nearly as bad, probably because the gas filler pipe changes the shape of the wheel well liner. This was after I had done a fairly extensive Dynamat job on the car (see my prior posts early in this thread). I had some rubberized undercoating in the garage so I applied a heavy coating on the outer half of both wheel wells which seemed to make a modest improvement, this should help with "pebble noise" too. My advice would be to include a heavy application of undercoating in the rear wheel wells to complement the application of Dynamat in the interior of the car. __________________ 2010 Brilliant Silver, Base w/Sport Package, AT7, Katzkin leather, upgraded audio and lots of Dynamat and a bunch of small stuff.

03-20-2012, 11:01 AM	#444 (permalink)
'10Anamoly Track Member Join Date: May 2010 Location: GA Posts: 882 Drives: 2010 370Z BS M6 Rep Power: 15	A couple of things to consider.. Dynamat on the inside of the front wheel liners on the front (black plastic) made a substantial difference in volume. Dynamat (three strips spread evenly) on the metal heat shield above the muffler area stopped all the clangy vibration there. Dynamat on the doors is a very substantial difference too, more than the floor of the hatch I believe. __________________ 2013 Ford Mustang GT 374rwhp, 360rwtq SAE / GT500 Axle-Backs / Brembo Pack / Track Pack / Recaros / 6spd

03-20-2012, 12:00 PM	#445 (permalink)
gy954 Base Member Join Date: Mar 2012 Location: Sonoma County, CA Posts: 163 Drives: 2011 370Z Rep Power: 181	Do It Electronically? MB has a technology that samples the sounds in the cockpit, processes them, and puts out noise cancellation through the audio system that removes road noise, wind, etc. Apparently this technology is smart enough to NOT cancel out normal speech And you may know that the new BMW M5 produces artificial performance-engine sounds through the audio system to make up for the lame I6 sound it really makes.

03-21-2012, 08:27 AM	#448 (permalink)
rebe945 Enthusiast Member Join Date: Mar 2010 Location: middleburg hts, ohio Posts: 491 Drives: 2009 370Z black 7at Rep Power: 15	Lowes Frost King product Just a point. I went to a business that details cars. Installs stereos, everything. They showed a sample of Dynamat to me. It was aluminized on one side, thin with an adhesive gray on the other side. So I went to Lowes and found a product that looked totoally identical but twice as thick. It is made for dampining vibrations and insulating metal ductwork. It was less costly and i cannot imagine what superior material Dynamat uses inside the product that would be substantially different from Frost King. [I]t worked for me and was cheaper.

03-22-2012, 05:46 AM	#449 (permalink)
Evil Sports Base Member Join Date: May 2011 Location: Mass Posts: 187 Drives: 11-370z-Blue-M6-ST Rep Power: 13	Frost King worked for me too and so far no so called smell. __________________ My current Rice stable, Lexus RX 330, Nissan 370z, Honda Aquatrax turbo, Yamaha 212SS

03-19-2012, 08:03 PM	#439 (permalink)
AndreDekolta Base Member Join Date: Nov 2011 Location: Bonaire, GA Posts: 45 Drives: 11 370Z Tr/Spt MB AT Rep Power: 13	Just my 2 cents on the noise level. It's a sports car. Not a high-end sports car...but a good one with great lines. It's NOT a stuffy Z4. Or, Audi TT. Etc., etc. There were several things I didn't even consider when I bought mine. STEREO - I turned it off. I wanted to hear the engine. ROAD NOISE - Didn't care. Was too busy enjoying a great sports car! GAS MILEAGE - Didn't care! Ok, when I fill it up...and really only VERY briefly! I forget all about it when I drive away... It's a gritty car. One with tons of history and fans. I honestly don't even notice the road noise. I'm too busy trying to wipe the smile off my face. Again...just my thoughts!

03-20-2012, 09:46 AM	#441 (permalink)
RiCharlie Track Member Join Date: Oct 2010 Location: Johnston RI Posts: 857 Drives: 370 Touring Spt A/t Rep Power: 15	Bonzo do you ever check your personal messages?

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