Cabin noise

opera370z · 01-14-2011, 04:40 PM

I see you're from New England. I had Seamless Costom in Worcester put Lizard Skin coating all over the car. Much nicer ...
The real problem is the rear wheel wells and matting over that in the trunk and floors. They ring on course roads. The Lizard skid can be sprayed into the small supports in the wheel wells which you can't do with matting.

They also added some rear speakers at the same time. They smooth out the blast you get from having just front speakers. Nice job. Talk to Justin.

I have the base coupe with the sport package and base radio.

When the tires get old, I'll replace them with quieter ones. Thar should help as well.

Love the car....... Goodluck :-)

Dwight Frye · 01-14-2011, 06:24 PM

The Nissan 370Z fits the definition of a true GT (Gran Turismo), a high performance vehicle designed for high speed, long distance travel in comfort and style. I love my Z but find that the road noise really takes away from the comfort of mid to long cruises. You cannot even hold a conversation with a passenger at 70 MPH with the stereo off and windows up with raising your voice considerably and the excessive noise takes a lot away from the enjoyment of music regardless of how loud it is. Yes, I know it's a sports car, I've owned many. I like a good exhaust note and engine growl when pushing it, but when at speed and in 6th gear there is no excuse for the car to be as loud as it is. Nissan dropped the ball on the design. I'm also convinced that the majority of the noise is tire related, as soon as I hit a smooth patch of non-grooved asphalt on the freeway the sound drops at least 10 db.
Tire noise levels will be a major factor when it comes time to replace the OEM's.

sonic370 · 01-14-2011, 07:16 PM

the 370 is a 2 seater it's gonna have some cabin noise...
but i don't like to use the word noise or even loud...

20% is not much of an improvement using materials...

i think on the sports package which i have it the bridgestones....

even the 50 grand vettes have some road noise....

the over weight stangs and camaros are quite.... but i'll pass on those..

RiCharlie · 01-16-2011, 08:51 AM

Quote:

Originally Posted by sonic370

the 370 is a 2 seater it's gonna have some cabin noise...
but i don't like to use the word noise or even loud...

20% is not much of an improvement using materials...

i think on the sports package which i have it the bridgestones....

even the 50 grand vettes have some road noise....

the over weight stangs and camaros are quite.... but i'll pass on those..

I think i may have used the term 20% at some point but that is just a very subjective guess.. I think it would be better to say that it was enough of a sound dampening to change the entire way I view the car. Sometimes even a slight improvement is a big deal..Sometimes the TV is too loud but just turning it down a bit makes a very big deal. As I said, 20% was just a guess..it could be 40%..only a measuring device could determine how much sound was dampened but it's well worth it IMO

LunaZ · 01-16-2011, 09:21 AM

I find my cabin to be very quiet!

NitroZ · 06-05-2020, 08:25 AM

I agree. Nissan could have done a better job. It's ridiculous. I was able to quiet mine down quite a bit, probably by 50%. Although I don't like adding weight, I did use Dynamat in the cargo area under and among the spare tire. Then I sprayed the foam inside the areas I could not get to without taking everything apart. Next, I found a real piece of carpet that was very thick online and threw away the paper thing OEM carpet. This helped a lot. It even had a Z emblem right in the middle. Lastly, I pulled all the plastic molding that surrounds the back window and used sound deadening on all sides. I just cut the shapes to fit in-between the lines. After that, it's now very quite. I was surprised on how much noise was coming in from there but on my car, it was clearly and improvement

.

trainsales · 01-15-2011, 02:33 AM

Whatta scolding, GuardDad! Nevertheless, you are correct. I put some dynamat in the hatch this afternoon, and it seems to make a substantial difference. Only drove it once so far though, during rush hour and with my daughter playing the stereo.

I attach a photo taken with my cell phone, facing toward the rear of the car. One box of dynamat from Bestbuy for 70 bucks covered the whole hatch area (12 sq. ft.). Weighs less than 10 pounds. I didn't have to remove all the interior molding, clips and body panels - just took out the spare tire and slid out the big styrofoam blocks. Was a 4 hour job though, and I am exhausted.

Bodytechz · 01-18-2011, 12:45 PM

trainesales, Thanks for the info AND the Photo. Think i'll be doing that myself when my Z order comes in!

c41006 · 01-15-2011, 10:14 AM

I am still trying to figure out why road noise bothers people so much

ImportConvert · 01-19-2011, 04:52 AM

Quote:

Originally Posted by c41006

I am still trying to figure out why road noise bothers people so much

Having read OP's posts in other threads, OP wants a "point and shoot" luxury type car. Driver involvement is not something the OP seems interested in, and similarly, road feedback is just an annoyance to OP. Curious why OP did not go with a G37 except maybe style.

Having driven several 370Z's on extended test-drives, I never once was irritated by the noise, found it intrusive, or even thought about it until I started reading threads about it on this website. Same for this rumor of "harshness" in the upper rpm-band. The 370Z is a wonderfully refined car, I think.

pbs370z · 02-19-2011, 12:48 AM

Quote:

Originally Posted by c41006

I am still trying to figure out why road noise bothers people so much

I'm trying to figure out why it doesn't bother you. Little hard a hearin' are ya? Maybe a few too many rock concerts in your youth, eh?

Guard Dad · 01-15-2011, 11:30 PM

Because it's NOISE! and it is totally unnecessary, it's distracting, it's tiring, I can't hear my music and I'm ashamed to have friends in the car. I've driven commercial flat bed drywall trucks that were quieter than the Z, in 46 years on the road, no car or truck I have EVER driven much less owned has this much road noise and if one more person tries to tell me that I'm not entitled to my opinion on this matter I just might lose it!

The sweet song of the Z's V6 speaking through the the right exhaust system is not noise, it's music, but if I subjected an employee to the ambient road noise of the Z I would literally need to provide him or her with ear protection or I would be on the line for causing hearing loss. High ambient noise levels induce stress, interfere with decision making and are bad for your health-end of story-why are we even discussing this? Some folks would like the car quieter, what's the harm in that? Let's stop telling them that they are wrong and help them make it quieter. Am I irritated, you bet! This is a matter of opinion, lots of people here think the car is too loud for their taste otherwise this thread (and many others like it) would not exist. To those of you who don 't share that opinion, well that's fine too, but please stop wasting everyone's time telling us that we're wrong and you just don't get it.

RiCharlie · 01-16-2011, 08:41 AM

Quote:

Originally Posted by Guard Dad

if one more person tries to tell me that I'm not entitled to my opinion on this matter I just might lose it!

You're not entitled to your opinion!! ha! ha! ha!!

Seriously you are right. Its no fun driving a car that is so loud you cant carry on a pleasant conversation or listen to music like soft jazz or classical which needs a somewhat quiet environment.

I think roads differ greatly and if you live in an area with smooth roads then the problem is not as bad.. but here there are many roads with a rough grade to provide traction during the snow and ice and while I would never drive on snow or ice, the road itself causes lots of vibrations and noise.

I read one review in which the car was likened to a cement mixer, another said his ears bled and a third refused to take it on a long trip. Now of course these are exaggerations but lots of reviewers make the point and its interesting that sometimes you can see videos of reviewers talking as they drive the car and the background noise is awful.

The good news is that unlike a problem with the basic design of the car or the engine or transmission, this problem is easily fixed. I think the key areas are hatch, doors ( which have NO sound dampening) and rear tire wells. Dynamat those areas and you get a whole new car which is truly a joy to drive!

trainsales · 01-16-2011, 12:29 AM

So, I drove about 40 miles today with the new sound deadening material installed (second time on the road with it). Mostly freeway driving on asphalt and that grooved cement road. Big reduction in the annoying ambient noise. Stereo sounds much better. Thanks to this forum for prior advice.

Guard Dad · 01-17-2011, 10:14 AM

My gripe is that this issue is the Rodney Dangerfield of threads, "it don't get no respect". The "I just don't get/it's a sports car/deal with it/ turn up the radio/get a cat back exhaust types just don't seem to know when to quit. Every cabin nose thread is littered with put downs and dismissive commentary about the issue. Yet I cannot recall anyone posting comments like "just slow down" or "it's a street car, what do you expect" when someone posts that their oil temps are too high or that their brakes are fading at the track. But talk about too much noise in the cabin and people can't seem to control themselves.

Read this thread, those addressing the issue have taken the time to post thoughtful, helpful, well reasoned and very well written comments that are on topic and of real value to many of us. And then there are those other posts that are sarcastic and dismiss the whole subject out of hand. Everyone here knows that the Z is a sports car, and that with its emphasis on performance it will ride rougher and be louder than most cars. So why restate the obvious and in an unpleasant manner to boot? It serves no purpose and after awhile becomes rather irritating.

06-05-2020, 08:25 AM	#6 (permalink)
NitroZ Base Member Join Date: May 2016 Location: Reno, Nv Posts: 19 Drives: 2009 370Z Touring Rep Power: 10	Cabin Noise Reduction I agree. Nissan could have done a better job. It's ridiculous. I was able to quiet mine down quite a bit, probably by 50%. Although I don't like adding weight, I did use Dynamat in the cargo area under and among the spare tire. Then I sprayed the foam inside the areas I could not get to without taking everything apart. Next, I found a real piece of carpet that was very thick online and threw away the paper thing OEM carpet. This helped a lot. It even had a Z emblem right in the middle. Lastly, I pulled all the plastic molding that surrounds the back window and used sound deadening on all sides. I just cut the shapes to fit in-between the lines. After that, it's now very quite. I was surprised on how much noise was coming in from there but on my car, it was clearly and improvement.

01-15-2011, 11:30 PM	#12 (permalink)
Guard Dad Enthusiast Member Join Date: Aug 2010 Location: South Orange County, CA Posts: 422 Drives: 2010 370Z Silver A7 Rep Power: 16	Because it's NOISE! and it is totally unnecessary, it's distracting, it's tiring, I can't hear my music and I'm ashamed to have friends in the car. I've driven commercial flat bed drywall trucks that were quieter than the Z, in 46 years on the road, no car or truck I have EVER driven much less owned has this much road noise and if one more person tries to tell me that I'm not entitled to my opinion on this matter I just might lose it! The sweet song of the Z's V6 speaking through the the right exhaust system is not noise, it's music, but if I subjected an employee to the ambient road noise of the Z I would literally need to provide him or her with ear protection or I would be on the line for causing hearing loss. High ambient noise levels induce stress, interfere with decision making and are bad for your health-end of story-why are we even discussing this? Some folks would like the car quieter, what's the harm in that? Let's stop telling them that they are wrong and help them make it quieter. Am I irritated, you bet! This is a matter of opinion, lots of people here think the car is too loud for their taste otherwise this thread (and many others like it) would not exist. To those of you who don 't share that opinion, well that's fine too, but please stop wasting everyone's time telling us that we're wrong and you just don't get it. mikeschmeee likes this. Last edited by Guard Dad; 01-15-2011 at 11:33 PM.

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01-14-2011, 04:40 PM	#1 (permalink)
opera370z Base Member Join Date: Jan 2011 Location: mass Posts: 1 Drives: 370Z red coupe sport Rep Power: 15	I see you're from New England. I had Seamless Costom in Worcester put Lizard Skin coating all over the car. Much nicer ... The real problem is the rear wheel wells and matting over that in the trunk and floors. They ring on course roads. The Lizard skid can be sprayed into the small supports in the wheel wells which you can't do with matting. They also added some rear speakers at the same time. They smooth out the blast you get from having just front speakers. Nice job. Talk to Justin. I have the base coupe with the sport package and base radio. When the tires get old, I'll replace them with quieter ones. Thar should help as well. Love the car....... Goodluck :-)

01-14-2011, 06:24 PM	#2 (permalink)
Dwight Frye Enthusiast Member Join Date: Jul 2009 Location: Occupied California Posts: 423 Drives: '09 Tour/Sport/6MT Rep Power: 17	The Nissan 370Z fits the definition of a true GT (Gran Turismo), a high performance vehicle designed for high speed, long distance travel in comfort and style. I love my Z but find that the road noise really takes away from the comfort of mid to long cruises. You cannot even hold a conversation with a passenger at 70 MPH with the stereo off and windows up with raising your voice considerably and the excessive noise takes a lot away from the enjoyment of music regardless of how loud it is. Yes, I know it's a sports car, I've owned many. I like a good exhaust note and engine growl when pushing it, but when at speed and in 6th gear there is no excuse for the car to be as loud as it is. Nissan dropped the ball on the design. I'm also convinced that the majority of the noise is tire related, as soon as I hit a smooth patch of non-grooved asphalt on the freeway the sound drops at least 10 db. Tire noise levels will be a major factor when it comes time to replace the OEM's.

01-14-2011, 07:16 PM	#3 (permalink)
sonic370 A True Z Fanatic Join Date: May 2010 Location: Orange Texas Posts: 1,574 Drives: 09 370Z Sports PGK Rep Power: 19	the 370 is a 2 seater it's gonna have some cabin noise... but i don't like to use the word noise or even loud... 20% is not much of an improvement using materials... i think on the sports package which i have it the bridgestones.... even the 50 grand vettes have some road noise.... the over weight stangs and camaros are quite.... but i'll pass on those..

01-18-2011, 12:45 PM	#8 (permalink)
Bodytechz Enthusiast Member Join Date: Jan 2011 Location: Illinois Posts: 253 Drives: '11 MB NISMO #0008 Rep Power: 15	trainesales, Thanks for the info AND the Photo. Think i'll be doing that myself when my Z order comes in!

01-15-2011, 10:14 AM	#9 (permalink)
c41006 A True Z Fanatic Join Date: Oct 2010 Location: Atlanta Posts: 9,034 Drives: '10 G37 Coupe BO 7AT Rep Power: 114	I am still trying to figure out why road noise bothers people so much

01-16-2011, 12:29 AM	#14 (permalink)
trainsales Base Member Join Date: Jan 2011 Location: Hawaii Posts: 28 Drives: 370z Rep Power: 15	So, I drove about 40 miles today with the new sound deadening material installed (second time on the road with it). Mostly freeway driving on asphalt and that grooved cement road. Big reduction in the annoying ambient noise. Stereo sounds much better. Thanks to this forum for prior advice.

01-17-2011, 10:14 AM	#15 (permalink)
Guard Dad Enthusiast Member Join Date: Aug 2010 Location: South Orange County, CA Posts: 422 Drives: 2010 370Z Silver A7 Rep Power: 16	My gripe is that this issue is the Rodney Dangerfield of threads, "it don't get no respect". The "I just don't get/it's a sports car/deal with it/ turn up the radio/get a cat back exhaust types just don't seem to know when to quit. Every cabin nose thread is littered with put downs and dismissive commentary about the issue. Yet I cannot recall anyone posting comments like "just slow down" or "it's a street car, what do you expect" when someone posts that their oil temps are too high or that their brakes are fading at the track. But talk about too much noise in the cabin and people can't seem to control themselves. Read this thread, those addressing the issue have taken the time to post thoughtful, helpful, well reasoned and very well written comments that are on topic and of real value to many of us. And then there are those other posts that are sarcastic and dismiss the whole subject out of hand. Everyone here knows that the Z is a sports car, and that with its emphasis on performance it will ride rougher and be louder than most cars. So why restate the obvious and in an unpleasant manner to boot? It serves no purpose and after awhile becomes rather irritating.