Cabin noise

LunaZ · 01-19-2011, 07:57 PM

Adding to the "it's all relative" aspect of the discussion I had the realization today that my work environment is extremely noisy. Makes my Z seem like a library in comparison.
YRMV

Guard Dad · 01-20-2011, 12:30 AM

Absolutely! Your perception of sound is, to a certain extent, relative.

ImportConvert · 01-20-2011, 12:39 AM

Quote:

Originally Posted by Guard Dad

Absolutely! Your perception of sound is, to a certain extent, relative.

+1

I never found the Z to be loud, enjoyed how it felt like it was carved from a block of billet, and in general, had no problem with how it rode. I found more to whine about regarding the clutch being more like an on/off switch.

birdmanx1 · 01-20-2011, 08:59 AM

Richarlie, Guard_Dad, thanks for the excellent posts regarding your experience with the "noise/not noise/whatever all want to call it" reduction. I ,along with many other I suspect, found those posts particularly helpful.

I agree with many in the forum who actually provide valuable info rather than opinions that sidetrack from the main point of the forum. You car, your money, your taste, your mods regardless of opposing opinions.

I too have found myself in situations where I was struggling to hold conversations in my nismo cruising at the normal 140mph (why I am talking at those speeds is not the issue, maybe I am being chased by zoombies in other sports cars, who knows

); I don't want to eliminate the sound from this sweet & mean engine since it is part of the awesome driving experience, I wouldn't mind reducing some of the slight road "noise/not noise/whatever all want to call it".

Would adding the dynamat to the doors & trunk suffice to eliminate much of the issue? Does one also need to do apply some dynamat to the floor for complete satisfaction ? I will be using the 20lbs dynamat 9 sheet pack.

RiCharlie · 01-20-2011, 03:13 PM

Quote:

Originally Posted by birdmanx1

Richarlie, Guard_Dad, thanks for the excellent posts regarding your experience with the "noise/not noise/whatever all want to call it" reduction. I ,along with many other I suspect, found those posts particularly helpful.

I agree with many in the forum who actually provide valuable info rather than opinions that sidetrack from the main point of the forum. You car, your money, your taste, your mods regardless of opposing opinions.

I too have found myself in situations where I was struggling to hold conversations in my nismo cruising at the normal 140mph (why I am talking at those speeds is not the issue, maybe I am being chased by zoombies in other sports cars, who knows

); I don't want to eliminate the sound from this sweet & mean engine since it is part of the awesome driving experience, I wouldn't mind reducing some of the slight road "noise/not noise/whatever all want to call it".

Would adding the dynamat to the doors & trunk suffice to eliminate much of the issue? Does one also need to do apply some dynamat to the floor for complete satisfaction ? I will be using the 20lbs dynamat 9 sheet pack.

I can only tell you that the doors have no sound dampening at all and when I got that done it made a big difference. I am going to have the wheel wells done next.. I had the hatch area done previously and cant say I was impressed..The sound level is better and maybe its just a combination of everything.. but the car is very different now... much MUCH better and fun to drive without the aggravation of excessive noise !! No fun driving something which is so loud I cant hear my wife's constant directions!!

SeattleLion · 01-20-2011, 03:13 PM

I've read all the noise threads and tons of reviews that complain about the 370Z noise. I've had my car for 6 months now (2010 370 Touring with sport package). I have to agree that road noise is loud. I really wasn't shocked by it. Back in the day, my 240 wasn't very quiet either.

I do agree that since I use the car as a dd, it would be nice to have less road noise. What bothers me is that many people claim no improvement with adding sound deadening to the hatch and doors. Others claim dramatic changes. There don't seem to be any objective results to analyze. It would be great if someone would measure the sound level at the driver's position before installing deadening material and then measure afterward. We could then see the difference numerically.

It's not surprising we get conflicting result reports. "Loud" and "soft" are subjective. 85db at 60mph smooth asphalt is objective.

Oil cooler issues are measurable. We all can see our oil temp and can report changes after adding a cooler. We really need to do the same thing with various sound reduction solutions.

Diesel370 · 01-20-2011, 08:34 PM

Quote:

Originally Posted by birdmanx1

Richarlie, Guard_Dad, thanks for the excellent posts regarding your experience with the "noise/not noise/whatever all want to call it" reduction. I ,along with many other I suspect, found those posts particularly helpful.

I agree with many in the forum who actually provide valuable info rather than opinions that sidetrack from the main point of the forum. You car, your money, your taste, your mods regardless of opposing opinions.

I too have found myself in situations where I was struggling to hold conversations in my nismo cruising at the normal 140mph (why I am talking at those speeds is not the issue, maybe I am being chased by zoombies in other sports cars, who knows

); I don't want to eliminate the sound from this sweet & mean engine since it is part of the awesome driving experience, I wouldn't mind reducing some of the slight road "noise/not noise/whatever all want to call it".

Would adding the dynamat to the doors & trunk suffice to eliminate much of the issue? Does one also need to do apply some dynamat to the floor for complete satisfaction ? I will be using the 20lbs dynamat 9 sheet pack.

You'll notice a difference for sure. You just have to go about it the right way.

01-19-2011, 07:57 PM	#1 (permalink)
LunaZ A True Z Fanatic Join Date: Mar 2010 Location: Vagabond Posts: 6,704 Drives: Project: a white one Rep Power: 512	Adding to the "it's all relative" aspect of the discussion I had the realization today that my work environment is extremely noisy. Makes my Z seem like a library in comparison. YRMV __________________ 2009 370Z Sport/Touring/Navigation \| see my journal for mods facebook: Be my friend... or not.

01-20-2011, 08:59 AM	#4 (permalink)
birdmanx1 A True Z Fanatic Join Date: Jun 2010 Location: Baltimore, MD Age: 96 Posts: 3,175 Drives: 370z Nismo Rep Power: 24	Richarlie, Guard_Dad, thanks for the excellent posts regarding your experience with the "noise/not noise/whatever all want to call it" reduction. I ,along with many other I suspect, found those posts particularly helpful. I agree with many in the forum who actually provide valuable info rather than opinions that sidetrack from the main point of the forum. You car, your money, your taste, your mods regardless of opposing opinions. I too have found myself in situations where I was struggling to hold conversations in my nismo cruising at the normal 140mph (why I am talking at those speeds is not the issue, maybe I am being chased by zoombies in other sports cars, who knows ); I don't want to eliminate the sound from this sweet & mean engine since it is part of the awesome driving experience, I wouldn't mind reducing some of the slight road "noise/not noise/whatever all want to call it". Would adding the dynamat to the doors & trunk suffice to eliminate much of the issue? Does one also need to do apply some dynamat to the floor for complete satisfaction ? I will be using the 20lbs dynamat 9 sheet pack. __________________ 370Z NISMO #0462 \| ClearBra \| 3M tint \| Head/Taillights \| Dynamat \| Black Roof \| Tommy Kaira HB \| CF Parts \| Berk HFCs \| FI SS \| NST Pulleys \| Takeda aFe \| K&N \| H&R Spacers \| Swift Spec R \| SPC F&R \| Zuperman M370 Nismo Vid \| Nismo Journal \| Nismo Rumble Last edited by birdmanx1; 01-20-2011 at 09:06 AM.

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01-20-2011, 12:30 AM	#2 (permalink)
Guard Dad Enthusiast Member Join Date: Aug 2010 Location: South Orange County, CA Posts: 422 Drives: 2010 370Z Silver A7 Rep Power: 15	Absolutely! Your perception of sound is, to a certain extent, relative.

01-20-2011, 03:13 PM	#6 (permalink)
SeattleLion Base Member Join Date: Sep 2010 Location: Seattle WA Posts: 226 Drives: '13 Mustang GT Prem. Rep Power: 234	I've read all the noise threads and tons of reviews that complain about the 370Z noise. I've had my car for 6 months now (2010 370 Touring with sport package). I have to agree that road noise is loud. I really wasn't shocked by it. Back in the day, my 240 wasn't very quiet either. I do agree that since I use the car as a dd, it would be nice to have less road noise. What bothers me is that many people claim no improvement with adding sound deadening to the hatch and doors. Others claim dramatic changes. There don't seem to be any objective results to analyze. It would be great if someone would measure the sound level at the driver's position before installing deadening material and then measure afterward. We could then see the difference numerically. It's not surprising we get conflicting result reports. "Loud" and "soft" are subjective. 85db at 60mph smooth asphalt is objective. Oil cooler issues are measurable. We all can see our oil temp and can report changes after adding a cooler. We really need to do the same thing with various sound reduction solutions.