Sound Deadening Options? |
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Sound Deadening Options? |
ThinAir |
Nov 25 2015, 04:16 PM
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#1
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Best friends Group: Members Posts: 2,542 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.
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. |
Bulldog9 |
Nov 27 2015, 12:03 PM
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#2
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Senior Member Group: Members Posts: 705 Joined: 21-August 13 From: United States Member No.: 16,283 Region Association: MidAtlantic Region |
I'm in the middle of soundproofing my car (912E).
I had stripped the entire car down to bare metal, all soundproofing/tar strips out and MAN was it loud. My plan is to cover the entire rear seat and deck area (over the engine and trans) with hushmat, then about 50% coverage for the floorboards and other panels to quell vibration. I will then cover as much as possible with a 3/8" self adhesive foam mat from super sound proofing. I am sourcing my carpet set from classic 9 leather shop and going for the poly foam backing which Rob says is quieter than the OEM style backing. So far the Hushmat and SSP foam combined has added about 17 pounds of weight. Not sure on the carpet set weight. So far, I have covered the whole rear deck and seat area and passenger side floor, and there is a marked improvement. I can not hear tire noise over the engine/trans ;-). Some say it is a waste to cover the entire area with the dynamat type materials because they are primarily vibration and resonance inhibitors, but I've seen a real reduction in sound coming through the engine firewall. LOTS of options, but being budget conscious, I got the hushmat on a firesale from Eastwood last year, and the SSP is fairly cheap IMO. http://www.supersoundproofingsales.com/SSP...o/09-42720-PSA/. The Pelican forums also have some extensive sound proofing threads. |
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