soundproofing
Rennlist Member
Joined: Jan 2016
Posts: 603
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From: TN
You posted this in May of 21. is the installer still in business in Cleveland, OH??
https://rennlist.com/forums/992/1249...f-992-a-3.html
https://rennlist.com/forums/992/1249...f-992-a-3.html
Rennlist Member
Joined: Oct 2002
Posts: 5,237
Likes: 6,291
From: Fairfax County, Virginia
The reason Porsche doesn't use heavy soundproofing is weight of the material, Your car probably picked up close to 50 lb. Probably a Mercedes SL is a better choice if you want quiet.
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Thread Starter
Burning Brakes
Joined: Apr 2018
Posts: 936
Likes: 536
From: Cleveland, Ohio
You posted this in May of 21. is the installer still in business in Cleveland, OH??
https://rennlist.com/forums/992/1249...f-992-a-3.html
https://rennlist.com/forums/992/1249...f-992-a-3.html
Contact Ralph or Craig at Auto Sound Security & Access
Willoughby, Ohio
Thread Starter
Burning Brakes
Joined: Apr 2018
Posts: 936
Likes: 536
From: Cleveland, Ohio
Rennlist Member
Joined: Sep 2009
Posts: 2,095
Likes: 503
From: Ontario Canada
Funny….I was all bent out of shape with my GT3T being too loud…not motor noise mind you but rear end roar…and I swapped out the OEM Pirelli with Michelin PS4 and it was night an day…awesome problem solved…...and as I was waiting for my wife’s 992 Targa, I subscribed to every thread about noise reduction because having come from a bunch of 99x cars over the years, it was annoying the tire roar but low and behold, upon delivery, I find the 992 reasonably quiet in fact …so much so that I haven’t felt the need to swap the OEM rubber for PS4 s as yet…but will when time for a change of rubber for sure which I suspect will be even better. I am a big fan of Harry but he was pretty hard on the 992 that review which I suspect had to do more with rubber and road surface in the area rather then an inherent problem of the car. My opinion only of course.
Instructor
Joined: Mar 2016
Posts: 106
Likes: 35
From: Texas
The 2017 C2 that I just picked up has the Pirellis and "I" feel they are too noisy. I look forward to replace them in the future
Last edited by wquiles; Aug 14, 2022 at 01:15 PM.
Racer
Joined: Jan 2021
Posts: 309
Likes: 158
From: Texas
Porsche is already using cheap bonded cotton behind trim panels as an absorber. Newer absorbers like 3M SM600L weigh even less and are more effective down to lower frequencies.
As far as dampeners like Dynamat, they could use 3M EDM 1029.
Dynamat: 0.66lb / sqft
3M EDM 1029: 0.28lb / sqft
Porsche doesnt need to cover every inch of the interior like you see in aftermarket installs. They can just target key areas like wheel wells, rear quarter panels, doors. 10lbs of EDM 1029 placed by an engineer could do wonders for the 992.
Last edited by DriverDaily; Sep 9, 2022 at 04:54 PM.
Rennlist Member
Joined: Jun 2022
Posts: 2,660
Likes: 2,812
From: Edmond, OK
The higher levels of NVH in the 992 are not a weight issue.
Porsche is already using cheap bonded cotton behind trim panels as an absorber. Newer absorbers like 3M SM600L weigh even less and are more effective down to lower frequencies.
As far as dampeners like Dynamat, they could use 3M EDM 1029.
Dynamat: 0.66lb / sqft
3M EDM 1029: 0.28lb / sqft
Porsche doesnt need to cover every inch of the interior like you see in aftermarket installs. They can just target key areas like wheel wells, rear quarter panels, doors. 10lbs of EDM 1029 placed by an engineer could do wonders for the 992.
Porsche is already using cheap bonded cotton behind trim panels as an absorber. Newer absorbers like 3M SM600L weigh even less and are more effective down to lower frequencies.
As far as dampeners like Dynamat, they could use 3M EDM 1029.
Dynamat: 0.66lb / sqft
3M EDM 1029: 0.28lb / sqft
Porsche doesnt need to cover every inch of the interior like you see in aftermarket installs. They can just target key areas like wheel wells, rear quarter panels, doors. 10lbs of EDM 1029 placed by an engineer could do wonders for the 992.
Last edited by dixonk; Sep 10, 2022 at 03:40 PM.