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DIY sound deadening continued...

Discussion in 'Gen 3 Prius Accessories and Modifications' started by M One, Oct 10, 2020.

  1. M One

    M One Member

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    DIY sound deadening weekend project continued...

    The logic is every extra bit of material should reduce vibration and/ or reduce external sounds.

    NOT pro, not even semi pro. So appreciate understand that this is a true DIY project.
    Also NO scientific measurements taken, cos I believe enjoyment cannot be measured scientifically. :)

    What I did: as advised by many internet gurus, cover some percentage of area with sound deadening material, then top up with cotton sheet to help absorb sounds.

    Result: as expected, a little quieter than before.

    Next step: the floorboards. Maybe next week. 247402229.jpeg 362915111.jpeg 719628822.jpeg 1957245244.jpeg 425728221.jpeg 1826745520.jpeg 1850464967.jpeg 1263977685.jpeg 1129335755.jpeg

    Posted via the PriusChat mobile app.
     
    #1 M One, Oct 10, 2020
    bisco, BrianStranded and Steph1972 like this.
  2. BrianStranded

    BrianStranded Member

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    Any update on this @M One ?
     
    #2 BrianStranded, Apr 30, 2021
  3. M One

    M One Member

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    sorry for not updating.

    I did remove the seats and dis the same sound deadening on the floor (as much as I could without removing carpet out of car).

    I can say the car definitely sounds quieter and the stereo sounds much better. Not sure on which part made the most difference. I guess they all worked a little bit.

    Meanwhile, added a used BOSE spare wheel subwoofer. That really helped the sound and I am sure the sound deadening helped to reduce the resonance which would otherwise be quite bad in car like the Prius
    Posted via the PriusChat mobile app.
     
    #3 M One, May 5, 2021
  4. bisco

    bisco cookie crumbler

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    inside the doors is supposed to be a big one, and wheel wells iirc
     
    #4 bisco, May 5, 2021
  5. Grit

    Grit Senior Member

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    sounds like you did a before and after comparison then?
     
    #5 Grit, May 5, 2021
  6. M One

    M One Member

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    Did that right at the start
    Posted via the PriusChat mobile app.
     
    #6 M One, May 6, 2021
  7. M One

    M One Member

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    Not a scientific one. Just what I felt personally and from friends travelling in car.
    Posted via the PriusChat mobile app.
     
    #7 M One, May 6, 2021
  8. black_jmyntrn

    black_jmyntrn Senior Member

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    #8 black_jmyntrn, May 22, 2021
  9. kungfuaddict

    kungfuaddict Junior Member

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    I'm interested in installing on my ProHow much weight do you think this added to your Prius? Did you notice any hit on MPG?
     
    #9 kungfuaddict, Dec 8, 2021
  10. black_jmyntrn

    black_jmyntrn Senior Member

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    maybe 10ls if that, no hit to mpg
     
    #10 black_jmyntrn, Dec 10, 2021
    kungfuaddict likes this.
  11. kungfuaddict

    kungfuaddict Junior Member

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    What is the white 3M material used for this mod?
     
    #11 kungfuaddict, Dec 10, 2021
  12. tony_2018

    tony_2018 Member

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    3m cotton car mat I believe.
     
    #12 tony_2018, Dec 25, 2021
  13. kungfuaddict

    kungfuaddict Junior Member

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    Awesome - thanks! Slowly installing this in mine. Completed the rear, rear seat and driver's side door.
     
    #13 kungfuaddict, Jan 3, 2022
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