Home  |  Forums  |  914 Info  |  Blogs
 
914World.com - The fastest growing online 914 community!
 
Porsche, and the Porsche crest are registered trademarks of Dr. Ing. h.c. F. Porsche AG. This site is not affiliated with Porsche in any way.
Its only purpose is to provide an online forum for car enthusiasts. All other trademarks are property of their respective owners.
 

Welcome Guest ( Log In | Register )

2 Pages V  1 2 >  
 Reply to this topicStart new topic
> Sound Deadening Options?
ThinAir
post Nov 25 2015, 04:16 PM
Post #1


Best friends
****

Group: Members
Posts: 2,531
Joined: 4-February 03
From: Flagstaff, AZ
Member No.: 231
Region Association: Southwest Region
This is me, picking up my freshly repainted 914 from PMB Performance.

Attached Image

Now that it's home, it's time to start putting things back together.

I'm looking for sound deadening solutions for the floor and interior back panel. I'm planning on keeping the interior back panel, but figured this would be a good time to enhance it with some sound deadening capability.

My searches haven't been very successful. I'd appreciate it you guys could offer some advice or point me to previous threads on the subject.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Cairo94507
post Nov 25 2015, 04:20 PM
Post #2


Michael
*****

Group: Members
Posts: 9,703
Joined: 1-November 08
From: Auburn, CA
Member No.: 9,712
Region Association: Northern California
I have a roll of Dynamat for my car when it comes together. If I recall it is about 1/8" thick of a semi-sticky black tar-like substance with a heavy foil backing. No odor no glue required. Just cut and using a smallish roller lay it out and roll it nice and smooth and flat. I like to color and the paint job looks to be top drawer.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
gfg3
post Nov 25 2015, 04:24 PM
Post #3


Never Too Old
**

Group: Members
Posts: 117
Joined: 5-January 15
From: Southern Virginia
Member No.: 18,295
Region Association: None
QUOTE(Cairo94507 @ Nov 25 2015, 05:20 PM) *

I have a roll of Dynamat for my car when it comes together. If I recall it is about 1/8" thick of a semi-sticky black tar-like substance with a heavy foil backing. No odor no glue required. Just cut and using a smallish roller lay it out and roll it nice and smooth and flat. I like to color and the paint job looks to be top drawer.

(IMG:style_emoticons/default/agree.gif)

I've used Dynamat in several cars; most recently my 914 and '61 TBird resto. A little pricey, but good stuff.

George
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
aircooledtechguy
post Nov 25 2015, 04:36 PM
Post #4


The Aircooledtech Guy
***

Group: Members
Posts: 1,966
Joined: 8-November 08
From: Anacortes, WA
Member No.: 9,730
Region Association: Pacific Northwest
I've used FatMat on several cars over the years with terrific results. It's virtually the same as Dynamat Extreme without the high price.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Andyrew
post Nov 25 2015, 04:37 PM
Post #5


Spooling.... Please wait
**********

Group: Members
Posts: 13,376
Joined: 20-January 03
From: Riverbank, Ca
Member No.: 172
Region Association: Northern California
I have these two options on my list.

Sound deadener (Heavy)
50 Sq Ft Noico Self-adhesive Foil & Butyl Mat 50 Mil (Same basic product as Dynomat, however much cheaper and in easily workable squares) NOTE: They do sell this in 80 mil, but state that the 50mil is the best weight to results.
http://www.amazon.com/gp/product/B00URR4O5..._dp_o_pC_nS_ttl


Heat/sound barrier (Light)
EZ Cool Automotive Insulation
http://www.lobucrod.com/



Basically i'll use the Sound deadener sparingly on large flat panels and over gaps to help deaden the tinny noises. I will cut small strips and place them on every piece of metal to make it more "heavy". From there I will use the heat/sound barrier (lightweight) over that and create a full barrier as this will be my total seal, doubled up at the engine firewall.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
76-914
post Nov 25 2015, 04:49 PM
Post #6


Repeat Offender & Resident Subaru Antagonist
**********

Group: Members
Posts: 13,485
Joined: 23-January 09
From: Temecula, CA
Member No.: 9,964
Region Association: Southern California
Looks very nice Ernie. (IMG:style_emoticons/default/smilie_pokal.gif)
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
ThinAir
post Nov 25 2015, 04:55 PM
Post #7


Best friends
****

Group: Members
Posts: 2,531
Joined: 4-February 03
From: Flagstaff, AZ
Member No.: 231
Region Association: Southwest Region
Eric & Gene did a wonderful job on the car. Here it is after I got it home to Flagstaff.

Attached Image
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Grelber
post Nov 25 2015, 05:24 PM
Post #8


Insert favorite Don Rickles joke here.
***

Group: Members
Posts: 690
Joined: 30-May 06
From: McKinney, Texas
Member No.: 6,107
Region Association: Southwest Region
+1 on the FatMat. A lot cheaper than DynaMat and just as good.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
BIGKAT_83
post Nov 25 2015, 05:29 PM
Post #9


Senior Member
***

Group: Members
Posts: 1,798
Joined: 25-January 03
From: Way down south Bogart,GA
Member No.: 194
Region Association: South East States
(IMG:style_emoticons/default/agree.gif)

I used a 50sq ft roll of 80mil on my 914. Made a big difference .


Bob
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
AZ914
post Nov 25 2015, 05:31 PM
Post #10


914 Dumbass
***

Group: Members
Posts: 1,459
Joined: 6-January 03
From: Sunny Tucson
Member No.: 98
Region Association: Southwest Region
QUOTE(aircooledtechguy @ Nov 25 2015, 03:36 PM) *

I've used FatMat on several cars over the years with terrific results. It's virtually the same as Dynamat Extreme without the high price.


(IMG:style_emoticons/default/agree.gif) I bought FatMat a few years back, cheaper than Dynamat.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Shadowfax
post Nov 25 2015, 06:20 PM
Post #11


Show us the meaning of haste
***

Group: Members
Posts: 509
Joined: 19-January 15
Member No.: 18,340
Region Association: South East States
Another vote here for Fatmat.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
r_towle
post Nov 25 2015, 07:25 PM
Post #12


Custom Member
***************

Group: Members
Posts: 24,560
Joined: 9-January 03
From: Taxachusetts
Member No.: 124
Region Association: North East States
Lots of good info here and online.

My two cents.
Sound deadening is about stopping both sound waves and vibration.

Certain materials stop certain sound waves.
Product like dynamat at rubber-foil which blocks two types of sound waves.
It also builds up the thickness of the metal to reduce vibration.

I would suggest a multi prongs approach.
Ceramic spray on sound deadened on the engine bay side.( lizard skin is on product)
1/2 inch foil faced mat on the engine bay side (914 rubber has that)
Dynamat on the inside.
Then both blocked more types of sound waves, but reduced vibration twice.

After all of that, the window is really loud.
A double pain would fix that..

In the end, a loud stereo or earplugs work really well.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Elliot Cannon
post Nov 25 2015, 07:36 PM
Post #13


914 Guru
*****

Group: Retired Members
Posts: 8,487
Joined: 29-December 06
From: Paso Robles Ca. (Central coast)
Member No.: 7,407
Region Association: None
I wear these on the highway when I have the roof off and the windows down (which is usually all the time). Really cuts down on the fatigue factor on long trips.


Attached image(s)
Attached Image
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
shoguneagle
post Nov 25 2015, 08:43 PM
Post #14


shoguneagle
***

Group: Members
Posts: 1,180
Joined: 3-January 03
From: CA, OR, AZ (CAZOR); New Mexico
Member No.: 84
Region Association: Northern California
Hi Ernie,

Just had to say hello and the car does look great. It has been a couple of years since we moved to Oregon.

I have used Dynamite and the only thing is that it is expensive; I believe I will go the Fatmate or what Andyrew suggests. I personally want to stay away from the spray ons since over time they appear to collect rust. Underneath I have used rubberized adhesive paint.

Again, the car looks great.

Steve Hurt
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
ThinAir
post Nov 25 2015, 11:12 PM
Post #15


Best friends
****

Group: Members
Posts: 2,531
Joined: 4-February 03
From: Flagstaff, AZ
Member No.: 231
Region Association: Southwest Region
QUOTE(r_towle @ Nov 25 2015, 06:25 PM) *

I would suggest a multi prongs approach.
Ceramic spray on sound deadened on the engine bay side.( lizard skin is on product)
1/2 inch foil faced mat on the engine bay side (914 rubber has that)
Dynamat on the inside.

Even if it would be helpful, no treatment on the engine side for me. I just finished paying to fix rust in the firewall so we're not going there again.

I have pretty reasonable expectations of how quiet a 914 can be so I think I'll be fine with interior treatments only.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
r_towle
post Nov 26 2015, 10:02 AM
Post #16


Custom Member
***************

Group: Members
Posts: 24,560
Joined: 9-January 03
From: Taxachusetts
Member No.: 124
Region Association: North East States
Earplugs, like Elliot said, work wonders, especially on the highway next to trucks.

Rich
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
saigon71
post Nov 26 2015, 10:02 AM
Post #17


Senior Member
***

Group: Members
Posts: 1,995
Joined: 1-June 09
From: Dillsburg, PA
Member No.: 10,428
Region Association: MidAtlantic Region
Your car looks great! (IMG:style_emoticons/default/beerchug.gif)

I went with Fat Mat Rattle Trap and installed an aftermarket heat/noise pad from 914 rubber (that won't hold water) on the engine side of the firewall. I am very happy with the noise level in my teener:

http://www.amazon.com/FatMat-Self-Adhesive...rds=rattle+trap
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
matthepcat
post Nov 26 2015, 10:37 AM
Post #18


Meat Popsicle
***

Group: Members
Posts: 1,462
Joined: 13-December 09
From: Saratoga CA
Member No.: 11,125
Region Association: Northern California
I suggest not one huge sheet on the floor boards. Leave the channels on the floors open, so if moisture collects in them, it can dry out.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
xperu
post Nov 26 2015, 11:39 AM
Post #19


TEXAS
***

Group: Members
Posts: 597
Joined: 13-June 06
From: League City Texas
Member No.: 6,213
Region Association: None
[quote name='ThinAir' date='Nov 25 2015, 04:16 PM' post='2269580']
This is me, picking up my freshly repainted 914 from PMB Performance.

Attached Image

Now that it's home, it's time to start putting things back together.

I'm looking for sound deadening solutions for the floor and interior back panel. I'm planning on keeping the interior back panel, but figured this would be a good time to enhance it with some sound deadening capability.

My searches haven't been very successful. I'd appreciate it you guys could offer some advice or point me to previous threads on the subject.
I used the same as CAIRO (Dynamate), it is very easy to work with and dampens any vibration I was having. And yes my dynamite came with a handy roller. I used heavy 2" AC foil duct tape at the seams and it really came out nice. I like you choice of color. Nice car. Mike
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
xperu
post Nov 26 2015, 11:42 AM
Post #20


TEXAS
***

Group: Members
Posts: 597
Joined: 13-June 06
From: League City Texas
Member No.: 6,213
Region Association: None
[quote name='ThinAir' date='Nov 25 2015, 04:16 PM' post='2269580']
This is me, picking up my freshly repainted 914 from PMB Performance.

Attached Image

Now that it's home, it's time to start putting things back together.

I'm looking for sound deadening solutions for the floor and interior back panel. I'm planning on keeping the interior back panel, but figured this would be a good time to enhance it with some sound deadening capability.

My searches haven't been very successful. I'd appreciate it you guys could offer some advice or point me to previous threads on the subject.

I used the same as CAIRO (Dynamate), it is very easy to work with and dampens any vibration I was having. And yes my dynamite came with a handy roller. I used heavy 2" AC foil duct tape at the seams and it really came out nice. I like you choice of color. Nice car. Mike
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
« Next Oldest · 914World Garage · Next Newest »
 

2 Pages V  1 2 >
Reply to this topicStart new topic
1 User(s) are reading this topic (1 Guests and 0 Anonymous Users)
0 Members:

 

Display Mode: Standard · Switch to: Linear+ · Switch to: Outline

Track this topic · Email this topic · Print this topic · Subscribe to this forum

- Lo-Fi Version Time is now: 20th April 2024 - 01:30 AM
Invision Power Board v9.1.4 © 2024  IPS, Inc.
All rights reserved 914World.com © since 2002
914World.com is the fastest growing online 914 community!
We have it all, classifieds, events, forums, vendors, parts, autocross, racing, technical articles, events calendar, newsletter, restoration, gallery, archives, history and more for your Porsche 914 ...