estomax
Posts: 104
Joined: Fri Jan 20, 2017 9:23 pm
Delivery Date: 21 Jan 2017
Location: Seattle

sound insulation for highway

Sun Feb 26, 2017 10:15 pm

hey guys,

I am quite happy with the new (to me) leaf, but I expected it to be a bit quieter on the highway. My main complaint is noise from the tires probably, as I cannot hear wind noise like I can hear in my other cars. Has anyone done any testing to add insulation (like dynamat) to reduce interior noise at freeway speeds?

changing out tires with good tread is not a good economical choice either, rocking the stock Michelin energy saver a/s right now on 17s.

cheers
Marko
2013 Leaf SL Premium
27k, 93% SoH, 2/17
32k, 96% SoH, 6/17
37k, 92% SoH, 9/17

LeftieBiker
Posts: 7180
Joined: Wed May 22, 2013 3:17 am
Delivery Date: 31 May 2013
Location: Upstate New York, US

Re: sound insulation for highway

Sun Feb 26, 2017 10:50 pm

Tires do seem to be the main variable when it comes to road noise. I'm not sure it makes sense to try to insulate the whole car from tire noise. Try experimenting with different tire pressures.
2013 "Brilliant Silver" SV with Premium Package and no QC, and 2009 Vectrix VX-1 with 18 Leaf cells.

The most offensive, tasteless phrase in use here is "Pulled the trigger." I no longer respond to posts that use it.

alozzy
Posts: 668
Joined: Fri Jan 20, 2017 4:25 pm
Delivery Date: 18 Jan 2017
Location: Vancouver, BC
Contact: Website

Re: sound insulation for highway

Mon Feb 27, 2017 1:11 am

Or turn up the radio, lol
Vancouver, CA owner of a 2013 Ocean Blue SV + QC, purchased 01/2017 in WA
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andyson
Posts: 8
Joined: Wed Feb 08, 2017 8:27 am
Delivery Date: 08 Feb 2017
Leaf Number: 2245

Re: sound insulation for highway

Tue Feb 28, 2017 8:07 pm

My buddy has a car audio shop and he uses dynamat for sound deadening. Fatmat is another good material

estomax
Posts: 104
Joined: Fri Jan 20, 2017 9:23 pm
Delivery Date: 21 Jan 2017
Location: Seattle

Re: sound insulation for highway

Thu Jul 27, 2017 7:26 am

cool plan, please post some pictures / before and after results if you can. maybe capture sound levels on the highway with your phone before and after for the sake of science too :) Coming from Audis and Lexuses I wouldn't mind making this thing quieter on the highway.

cheers,
Marko
2013 Leaf SL Premium
27k, 93% SoH, 2/17
32k, 96% SoH, 6/17
37k, 92% SoH, 9/17

Andrejun
Posts: 20
Joined: Sat Jan 16, 2016 1:33 pm
Delivery Date: 16 Jan 2016

Re: sound insulation for highway

Thu Sep 28, 2017 6:38 pm

I put Dynamite equivalent in all 4 of my doors when I did speakers. road noise isn't hugely improved, but perceived interior quality (tinnieness) improved notably.

RonDawg
Posts: 2696
Joined: Sat Jan 12, 2013 3:46 am
Delivery Date: 11 Jan 2013
Leaf Number: 027089
Location: SoCal

Re: sound insulation for highway

Thu Sep 28, 2017 9:25 pm

It seems that the quietness of the powertrain led Nissan to totally cheap out on the sound deadening. Of course that does nothing for other noise sources like tires. I noticed that if I play the stereo even at a moderate volume, even with the doors shut and windows rolled up I could easily hear the lyrics while standing outside the car.

Andrejun wrote:I put Dynamite equivalent in all 4 of my doors when I did speakers. road noise isn't hugely improved, but perceived interior quality (tinnieness) improved notably.


Hopefully you mean "DynaMat" and not "dynamite." The latter would actually make the interior very loud, albeit for fractions of a second :lol:
Blue Ocean 2012 Leaf SV, lost that 1st bar on 11/21/2015 at 26,435 miles.
Lease returned on 12/23/2015. Final LeafStat figures: 225 Gids, 17.44 kWH, SOC 91.89%, SOH 82.36%, 69.49% HX, 54.57 Ahr, battery temp 61.8 F
Now driving a 2015 VW eGolf SEL

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