Sound Deadening... Is it worth it?

Josh80 · 10-29-2009, 12:11 PM

I have read through many posts about this but most of the people who have done this have done it to an EX or LX and not an Si. Basically I have been thinking about sound deadening the majority of the car i.e. trunk doors, rear deck, wheel wells and if it isnt too hard the firewall. I mainly want to eliminate road noise and improve the over all acoustics of the car and get the car to be as dead as something more like a luxury vehicle, a Lexus for example. I was planning on doing this correctly i.e. deadener, then layer of closed cell foam topped off by some mass loaded vinyl. I am wondering if it is worth my time energy and money to attempt to get my 09 Si to sound as dead as a Lexus or is this an impossible task. Thanks for all of your input.

BlueSi4 · 10-29-2009, 12:15 PM

You think you can turn your Civic into a Lexus just by using some deadener in your car? If you want to sound as a Lexus, go buy a Lexus.

White Knight · 10-29-2009, 12:17 PM

it helped my car out a lot. i used it everywhere.

blazelate · 10-29-2009, 12:24 PM

Quote:

Originally Posted by BlueSi4

You think you can turn your Civic into a Lexus just by using some deadener in your car? If you want to sound as a Lexus, go buy a Lexus.

I dont think he aspires to transform his civic into a lexus

Only to make the interior as quite as one, which i think is a great idea. sorry i dont have any experience with that stuff, but im defiantly interested im making my civics panels quieter

dgaplin · 10-29-2009, 02:02 PM

Won't all that material add significant weight to the car?

***CorSport*** · 10-29-2009, 02:05 PM

All that extra weight FTL

Josh80 · 10-29-2009, 03:18 PM

From what I can tell it will be about an extra 100lb at most, basically the weight of a naked run way model. And I don't particularly want a Lexus but if you want to give me the extra 20k over the cost of my Si I will certainly take it into consideration. All I am really looking for is whether or not sound deadening is worth my time and if it is going to make that much of a difference.

***CorSport*** · 10-29-2009, 03:20 PM

Quote:

Originally Posted by Josh80

From what I can tell it will be about an extra 100lb at most, basically the weight of a naked run way model. And I don't particularly want a Lexus but if you want to give me the extra 20k over the cost of my Si I will certainly take it into consideration. All I am really looking for is whether or not sound deadening is worth my time and if it is going to make that much of a difference.

You are going to spend lots of money, time and add tons of weight to hear less out side = you being sad in the end IMO.

You have a "sports" car, enjoy it for what it is.

dil2502 · 10-29-2009, 03:33 PM

NO thread over

asndragonboii · 10-29-2009, 03:35 PM

It's worth it in your trunk if you have a sub.

I did my doors and didnt notice a difference.

classic · 10-29-2009, 03:40 PM

Sound deadening can definitely make your Si as quiet as a luxury car. That being said, the extra weight (as you mentioned, about 100lbs) will belittle the performance of your Si - a stark contrast to the vehicle's intended purpose.

If ultimate sound deadening and acoustical environment is your primary goal, then yes, deadening is worth the time, money and the effects will certainly be obvious. Btw, Second Skin Audio makes some quality deadening products..

Kserious · 10-29-2009, 04:27 PM

I was happy after Dynamatting just the doors.

Zachary81 · 10-29-2009, 05:42 PM

Op, i can help you out a lot. I put sound deadening foam in my car it helped out a ton. And it only added about 20-30 lbs MAX to the weight. It took a full day to install and is well worth it. I happen to work for a foam fabricator, so it was pretty easy for me to get my hands on the right foam. Try to find a low density cross linked polyethylene. PM me if you have any questions.

maximus20895 · 10-29-2009, 05:59 PM

what noise got reduced? The engine, outside stuff, noises inside the car?

pks17 · 10-29-2009, 06:25 PM

you can actually make your civic as quiet, or quieter then a lexus with about 1000$ worth of properly placed deaden. Is it worth it or not, thats up to you.

Zachary81 · 10-29-2009, 06:27 PM

Quote:

Originally Posted by maximus20895

what noise got reduced? The engine, outside stuff, noises inside the car?

I have a sub and it cut out every rattle. It also reduced the road noise. The car is a lot quieter on the inside. I had a cheap blue tooth and it picked up road noise. After I installed the sound deadening the person I was talking to couldn't hear road noise. It makes a big difference. I know it sounds stupid, but the doors feel/sound more solid when you close them.

Zachary81 · 10-29-2009, 06:27 PM

Quote:

Originally Posted by pks17

you can actually make your civic as quiet, or quieter then a lexus with about 1000$ worth of properly placed deaden. Is it worth it or not, thats up to you.

$1000??? What are you buying?

thisisdudewhoru · 10-29-2009, 06:31 PM

I put it all in my trunk. Subs are louder lol. No rattles. Can't hear exhaust at all.

mike11202 · 10-29-2009, 08:08 PM

i used the really thick weatherproof carpet padding against panels/wheel well/floor and bags of polyfill with foil tape inside the wells and other holes

this is a very lightweight solution and very effective my car is really quiet now

bagsied · 10-30-2009, 03:16 AM

This is what you are looking for and you do not need to spend $1000. Look at this site www.quietcar.net

10-29-2009, 12:11 PM	#1 (permalink)
Josh80 Member Join Date: Apr 2009 Posts: 36	Sound Deadening... Is it worth it? I have read through many posts about this but most of the people who have done this have done it to an EX or LX and not an Si. Basically I have been thinking about sound deadening the majority of the car i.e. trunk doors, rear deck, wheel wells and if it isnt too hard the firewall. I mainly want to eliminate road noise and improve the over all acoustics of the car and get the car to be as dead as something more like a luxury vehicle, a Lexus for example. I was planning on doing this correctly i.e. deadener, then layer of closed cell foam topped off by some mass loaded vinyl. I am wondering if it is worth my time energy and money to attempt to get my 09 Si to sound as dead as a Lexus or is this an impossible task. Thanks for all of your input.
	Tweet

10-29-2009, 02:05 PM	#6 (permalink)
*CorSport* 8thcivic Sponsor Join Date: Oct 2005 Location: Denver, Colorado Posts: 10,204	All that extra weight FTL __________________ www.CorSportUSA.com <-- tuner specific parts, free shipping in the USA. www.VSpeedUSA.com <-- every car, tons of parts, worldwide shipping. Online Aftermarket Performance Parts, Defined.

10-29-2009, 03:40 PM	#11 (permalink)
classic Junior Member Join Date: Oct 2009 Posts: 5	Sound deadening can definitely make your Si as quiet as a luxury car. That being said, the extra weight (as you mentioned, about 100lbs) will belittle the performance of your Si - a stark contrast to the vehicle's intended purpose. If ultimate sound deadening and acoustical environment is your primary goal, then yes, deadening is worth the time, money and the effects will certainly be obvious. Btw, Second Skin Audio makes some quality deadening products.. Last edited by classic; 10-29-2009 at 03:41 PM.

Thread Tools
Show Printable Version Email this Page
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
My sound deadening project	deltatechx	I.C.E., Electrical, Security, & Navigation	33	12-18-2010 03:10 AM
Sound Deadening Question	tcd2004	I.C.E., Electrical, Security, & Navigation	6	07-17-2008 11:58 PM
sound deadening	PrEgO CaNe	I.C.E., Electrical, Security, & Navigation	8	04-21-2008 11:01 AM
Best Sound deadening?	27IVTEC	I.C.E., Electrical, Security, & Navigation	26	10-05-2007 02:45 PM
sound deadening	ameuba10	I.C.E., Electrical, Security, & Navigation	3	08-07-2007 01:52 PM

10-29-2009, 12:15 PM	#2 (permalink)
BlueSi4 Senior Member Join Date: Apr 2007 Location: Barcelona Age: 24 Posts: 42,375 Oriol	You think you can turn your Civic into a Lexus just by using some deadener in your car? If you want to sound as a Lexus, go buy a Lexus.

10-29-2009, 12:17 PM	#3 (permalink)
White Knight Senior Member Join Date: Jul 2008 Location: 1600 Pennsylvania Ave. Posts: 10,191 John	it helped my car out a lot. i used it everywhere.

10-29-2009, 02:02 PM	#5 (permalink)
dgaplin Senior Member Join Date: Jul 2009 Location: Memphis Posts: 438 David	Won't all that material add significant weight to the car?

10-29-2009, 03:18 PM	#7 (permalink)
Josh80 Member Join Date: Apr 2009 Posts: 36	From what I can tell it will be about an extra 100lb at most, basically the weight of a naked run way model. And I don't particularly want a Lexus but if you want to give me the extra 20k over the cost of my Si I will certainly take it into consideration. All I am really looking for is whether or not sound deadening is worth my time and if it is going to make that much of a difference.

10-29-2009, 03:33 PM	#9 (permalink)
dil2502 Senior Member Join Date: Aug 2007 Location: 490whp @ 13psi Age: 23 Posts: 9,429 Marcel	NO thread over

10-29-2009, 03:35 PM	#10 (permalink)
asndragonboii Senior Member Join Date: May 2006 Posts: 5,167	It's worth it in your trunk if you have a sub. I did my doors and didnt notice a difference.

10-29-2009, 04:27 PM	#12 (permalink)
Kserious Senior Member Join Date: Apr 2009 Posts: 353	I was happy after Dynamatting just the doors.

10-29-2009, 05:42 PM	#13 (permalink)
Zachary81 Senior Member Join Date: Feb 2008 Location: Houston, TX Age: 31 Posts: 351 Zach	Op, i can help you out a lot. I put sound deadening foam in my car it helped out a ton. And it only added about 20-30 lbs MAX to the weight. It took a full day to install and is well worth it. I happen to work for a foam fabricator, so it was pretty easy for me to get my hands on the right foam. Try to find a low density cross linked polyethylene. PM me if you have any questions.

10-29-2009, 05:59 PM	#14 (permalink)
maximus20895 Senior Member Join Date: Apr 2006 Location: Knoxville, TN Age: 22 Posts: 6,426 Max	what noise got reduced? The engine, outside stuff, noises inside the car?

10-29-2009, 06:25 PM	#15 (permalink)
pks17 Senior Member Join Date: Nov 2007 Posts: 2,542	you can actually make your civic as quiet, or quieter then a lexus with about 1000$ worth of properly placed deaden. Is it worth it or not, thats up to you.

10-29-2009, 06:31 PM	#18 (permalink)
thisisdudewhoru Senior Member Join Date: Feb 2007 Posts: 3,086	I put it all in my trunk. Subs are louder lol. No rattles. Can't hear exhaust at all.

10-29-2009, 08:08 PM	#19 (permalink)
mike11202 Senior Member Join Date: Nov 2006 Location: Delaware Posts: 680 Mike	i used the really thick weatherproof carpet padding against panels/wheel well/floor and bags of polyfill with foil tape inside the wells and other holes this is a very lightweight solution and very effective my car is really quiet now

10-30-2009, 03:16 AM	#20 (permalink)
bagsied Member Join Date: Sep 2009 Location: Silicon Valley - SF Bay Area Posts: 44 Ed	This is what you are looking for and you do not need to spend $1000. Look at this site www.quietcar.net

Remove Advertisements Sponsored Links
8th Generation Honda Civic Forum Advertisement