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Re: Product to Reduce Road Noise-Jeremy R ? Posted by SPG Jr [Email] (#1830) [Profile/Gallery] (more from SPG Jr) on Tue, 15 Dec 2020 08:22:51
In Reply to: Product to Reduce Road Noise-Jeremy R ?, Roger D [Profile/Gallery] , Mon, 14 Dec 2020 07:37:13 Members do not see ads below this line. - Help Keep This Site Online - Signup
There have been some posts about this topic, I'll post a link to the one i remember, but I'm not sure how much can really be accomplished in a Viggen, assuming a tuned suspension, and whether the result is worth the DIY time investment. Stiff suspension and poly bushings, esp motor/trans mounts, are going to transfer a lot of vibration into a frame and body that simply isn't engineered or beefy enough or to absorb it.
I think Dynamat or similar would be the type of product you're referring to. To really do it up, you need to get into the doors, line the floor boards, etc. It's heavy, adhesive backed, you cut it to conform to the wheel wells or whatever then place it while heating it with a heat gun to mold it to the shape. I took the opportunity of removing rear seats and hatch carpet to place some leftover Dynamat on the wheel wells and some spots in the hatch. I suppose it helps a bit but nothing dramatic.
Don't overlook your tires in this quest. My car came with Pirelli P-Zero Neros on Ronal 17" steel wheels and, no exaggeration, I would have to almost shout to have a conversation with someone in the car. Replaced with some lightly used P7000s, also really noisy (and terrible performance, but i digress). Now running Continentals ContiSports and it really has been night and day improvement. Even my snow tires on double-y winter wheels are much quieter than those Pirellis.
sound proofing thread
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