in cabin road noise deadening

Discussion in 'Prius c Accessories and Modifications' started by jz13prius, Feb 20, 2014.

  1. jz13prius

    jz13prius Junior Member

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    Hi all

    Was wondering if anyone here has taken out the carpet and added dyno mat or fat mat yet. If so does this make a big difference in road noise? Or very little? My C2 seems pretty loud on the freeway.

    Thanks for the help and info
     
  2. flotowngtm

    flotowngtm Junior Member

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    Someone here has done this on a C. Cant remember who..... Looking for it..
     
  3. jdenenberg

    jdenenberg EE Professor

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    My son-in-law dynomatted his 2005 Prius under the carpet and in the trunk, but didn't do the doors. I measured about a 5 dBa reduction. Changing the tires can also help.

    DoctorD
     
  4. B2FiNiTY

    B2FiNiTY Active Member

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    There are some threads in the audio forum of members who have done this. All have reported improved sound quieting.
     
  5. jz13prius

    jz13prius Junior Member

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    Thanks guys for the info. I'll check the audio section
     
  6. kingnba6

    kingnba6 Active Member

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    dont forget, extra weight means less MPG. but it shouldnt impact it that much.
     
  7. ztanos

    ztanos All-around Geek!

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    150lbs of dynomat is what the aforementioned user had... I don't think that will affect the MPGs much.
     
  8. jz13prius

    jz13prius Junior Member

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    Thanks for the info. Would you happen to know any threads that have some pics and detailed info on installing front speakers and tweeters?

    Thanks
     
  9. Ken Scheinker

    Ken Scheinker Junior Member

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    Used Dynomat years ago in a Nissan Hardbody. Didn't really help.
     
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  10. otbiker

    otbiker New Member

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    I know this sounds like a smart nice person answer, but if you enjoy music, upgrade the OEM audio system. I've tired quieting a few econoboxes in my lifetime. Thin materials including carpet, metal, and glass are nearly impossible to get ahead of...
     
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  11. Max Taiwan

    Max Taiwan Active Member

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    I found doing the pillar seals and door lower seal helped a bit for road noise. But on highway the engine low hum is there always. If you would like some photos I'll be happy to post some for you
     
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  12. priustexasbob

    priustexasbob Member

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    yeah that would be great, thanks
     
  13. Max Taiwan

    Max Taiwan Active Member

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    What it does is complete the seal from the original door seals.
     

    Attached Files:

  14. padroo

    padroo Senior Member

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    The road surface is a big factor in road noise. I have one road where they switched to a different grade of blacktop and the noise changes drastically.
     
  15. Kenichi

    Kenichi New Member

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    Where'd did you get those seals from?
     
  16. Max Taiwan

    Max Taiwan Active Member

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    I got them fitted here in another city, but if you want its a easy DIY job. I just have a lot on my plate these days and money was a tool to solve my problems so I paid to have them done. The parts is roughly $80 for the whole vehicle. If you are interested I can have it shipped to you. They have 3M adhesive backing I think and all you need is rubbing alcohol to clean the areas and off you go. They don't interfere with the original seals of the car and no water problems after heavy rain.
     
  17. Kenichi

    Kenichi New Member

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    Gotcha, I appreciate your offer. I'll take a raincheck for now! If it was a simple item I would've given it a try, but not a top priority currently for me.
     
  18. Max Taiwan

    Max Taiwan Active Member

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    Cool no problem. Just shoot me a message when you want.
     
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