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Dynamat - Yay or Nay

Discussion in 'Classic Mustangs' started by CV355, Jan 9, 2019.

  1. CV355

    CV355 I make my own breakfast Established Member

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    I am looking at filling up the year with inexpensive (all relative) but labor-intensive projects for my Mach 1- keeps me occupied but lets me build back up the funds after 2018's weekly tooth-kicks. The end goal for the car is cruise-in shows and that's about it, but I'd like it to be comfortable and quiet on the interior.

    I love the idea of doing a full Dynamat kit on the interior, but I'm concerned if it's "too permanent." I know you can tear it off but it's a mess. If I dynamat the car properly, will it detract from value at all? Any negatives?
     
  2. 98 svt

    98 svt Well-Known Member Established Member

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    Unless it is a cool concours restoration, I say go for it. I used it on my daily driver Fusion (doors and floor) and it made a big difference. Quiets down the interior, the doors close with a deep "thud"... no more tinny sound, and it even helped the sound on my stereo.
     
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  3. CV355

    CV355 I make my own breakfast Established Member

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    Interior is 99% concours. Engine bay is light restomod.

    The engine has a pretty nasty cam, which shakes the piss out of the car at idle. I liked that sort of thing when I was younger, now I just want kids off my lawn haha. Fuel pump is atrociously loud too (Holley Red).
     
  4. PaxtonShelby

    PaxtonShelby Betty White....mmmmmm Established Member

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    I forgot you had a Mach. So cool! Q or R code? Top loader or C6? Rear gear? How many miles a year do you put on it?

    I don’t think you have to cover the entire interior. I’m no expert but I thought you could strategically cover certain areas to eliminate resonance. All that being said, wow do new cars spoil us when it comes to quiet interiors!

    Can you change to an in-tank pump? That would cut down the noise significantly.
     
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  5. SID297

    SID297 OWNER/ADMIN Staff Member Administrator

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    It makes a big difference. I did my Lightning interior with a different brand, but Dynamat is better product.

    Also, I have a ton of it here in sheets if you want buy some.
     
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  6. CV355

    CV355 I make my own breakfast Established Member

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    I'm looking at the die-cut kits, but I appreciate the offer! Glad to hear it makes such a difference.

    It's a Q-code, C6, 4.11s. I put 3 miles on it in 2017, and 20 miles on it in 2018. I've thought about an in-tank pump, but I'm still working out future plans for the car. I am planning on taking out the original engine, preserving it, and putting in a side oiler of which I haven't spec'd out yet. Last year was entirely uncooperative due to virtually everything we own breaking and needing to be fixed/replaced. This year is panning out a hell of a lot better so far, so I might be able to do peripherals leading up to a 2020/2021 engine build. I plan on doing all but the shortblock myself.

    And you're totally right. My Volvo is dead quiet inside. My wife's F150, even with the straight Borla exhaust, is whisper quiet too. I get in the Mach 1 and it's oil-can city. Not quite as bad as when I tinned-out my '00 GT race car, but close. I DD'd a car with no interior but a dash, cage, and single seat for about 6 months and it was an unbearable experience
     
    Last edited: Jan 10, 2019
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  7. Revvv

    Revvv Infinity Poster Established Member

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    You will add a small amount of weight, but not enough to matter. It will reduce vibration, exterior noise, and make driving the car more enjoyable.

    At some point I look forward to adding some form of sound damper material to the interior of the old GT.

    Sent from my SM-G900V using Tapatalk
     
  8. Revvv

    Revvv Infinity Poster Established Member

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    That's what makes that car cool.

    Sent from my SM-G900V using Tapatalk
     
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  9. CV355

    CV355 I make my own breakfast Established Member

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    Haha, it's cool but it also makes me feel like the thing is going to fall apart.
     
  10. Mojo88

    Mojo88 "Hammer" Time Established Member

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    I've used Dynamat on every car lately, sometimes very liberally. The three cars in my avatar pic were all dynamat'd. That stuff works.

    My last usage for Dynamat was on my forced hot air heating system in the basement. I was hearing a lot of fan motor whine, amplified by the metal ducting, very annoying. So I applied a bunch of Dynamat Extreme and got rid of virtually all the whine. :)
     
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  11. Revvv

    Revvv Infinity Poster Established Member

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    That is your eardrums disintegrating.

    Sent from my SM-G900V using Tapatalk
     
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