Is sound deadening worth it

[Jay Bamrah 29]

Hi I’m going to put foam in the rear parcel shelf of my BRZ to prevent break light rattles and then got thinking. The BRZ you can hear when small debris hits the bottom of the car etc so would sound deadening the boot under the spare wheel ...under the carpets and also the door panels be worth it? 

Has anyone here done it for advice?

im upgrading my speakers soon as well so it will help with vibrations I assume. The only vibration it won’t fix is the one that sounds like it’s from the glove box which I can’t find a way to fix.

any replies always appreciated

 

link to Amazon budget sound deadening :

 

https://www.amazon.co.uk/Noico-deadening-Automotive-Insulation-dampening/dp/B00URUIKAK/ref=mp_s_a_1_1_sspa?dchild=1&keywords=noico+sound+deadening&qid=1609386222&sprefix=nioco+so&sr=8-1-spons&psc=1&spLa=ZW5jcnlwdGVkUXVhbGlmaWVyPUFUNEVVMEk0SlZBQ0omZW5jcnlwdGVkSWQ9QTAzOTI2MzBRT0RBS0FFTDYyQ0MmZW5jcnlwdGVkQWRJZD1BMDM1Mzg5MTJJQzdZUUxKSThESlAmd2lkZ2V0TmFtZT1zcF9waG9uZV9zZWFyY2hfYXRmJmFjdGlvbj1jbGlja1JlZGlyZWN0JmRvTm90TG9nQ2xpY2s9dHJ1ZQ==

[Varelco 211]

This subject has been covered a lot so I would recommend doing a search, but ultimately yes it makes a big difference as the car has next to none from the factory. The most effective areas for sound deadening are the rear quarters, rear seats and the doors, the boot is well isolated by the seat back rest so in my opinion its pointless putting any in there.

[Lordyboi 5]

I'm currently in the process of doing this my self, currently only have some CCF and a little sound deadening mat. Nothing rattles now but road noise is unbearable, so im going to put in MLV in under the carpet and door cards in the summer when its warmer.

Here are some good links I've been using, might as well save you the time:

https://www.ft86club.com/forums/showthread.php?t=53511

https://www.flickr.com/photos/86194869@N08/sets/72157633425405068/with/8711031372/

https://www.ft86club.com/forums/showthread.php?t=35604

materials:

https://uk.rs-online.com/web/p/acoustic-insulation/8814557/

https://www.carinsulation.co.uk/product/car-heavy-layer-insulation-3mm-5kg-car-heavy-layer-deadening-5m-roll

https://www.amazon.co.uk/Yaheetech-Proofing-Deadening-Insulation-Adhesive/dp/B01MDUB6T6/ref=sr_1_7?crid=1PRW4Y2I9IIF8&dchild=1&keywords=closed+cell+foam&qid=1610298378&sprefix=closed+cel%2Caps%2C170&sr=8-7

These aren't the cheapest materials so do look around but they'll give you a feel.

In sort different materials block different wave length of sound (vibrations, road noise, wind noise all have different wave lengths) there is no one material fits all unfortunately. The forums I linked above do a good job of explaining what materials should be used where.

Do note that they will add weight, MLV will add the most mass by a mile but it the best a blocking road noise and worth it to stop my ears from bleeding.

Also I have the focal speaker package, Kenwood head unit as well as some better 3 1/2 inch speakers in the rear, great sound and more powerful but they cause my door cards to vibrate and rattle when a song with bass comes on. So the door cards they're coming off in the summer to address this. Just food for thought.

Finally when you have the door cards off tape/glue/wedge something in between the housing of the window controls and housing they sit in. You'll thanks me later.

Hope this all helps 

[Jay Bamrah 29]

2 hours ago, Lordyboi said:

I'm currently in the process of doing this my self, currently only have some CCF and a little sound deadening mat. Nothing rattles now but road noise is unbearable, so im going to put in MLV in under the carpet and door cards in the summer when its warmer.

Here are some good links I've been using, might as well save you the time:

https://www.ft86club.com/forums/showthread.php?t=53511

https://www.flickr.com/photos/86194869@N08/sets/72157633425405068/with/8711031372/

https://www.ft86club.com/forums/showthread.php?t=35604

materials:

https://uk.rs-online.com/web/p/acoustic-insulation/8814557/

https://www.carinsulation.co.uk/product/car-heavy-layer-insulation-3mm-5kg-car-heavy-layer-deadening-5m-roll

https://www.amazon.co.uk/Yaheetech-Proofing-Deadening-Insulation-Adhesive/dp/B01MDUB6T6/ref=sr_1_7?crid=1PRW4Y2I9IIF8&dchild=1&keywords=closed+cell+foam&qid=1610298378&sprefix=closed+cel%2Caps%2C170&sr=8-7

These aren't the cheapest materials so do look around but they'll give you a feel.

In sort different materials block different wave length of sound (vibrations, road noise, wind noise all have different wave lengths) there is no one material fits all unfortunately. The forums I linked above do a good job of explaining what materials should be used where.

Do note that they will add weight, MLV will add the most mass by a mile but it the best a blocking road noise and worth it to stop my ears from bleeding.

Also I have the focal speaker package, Kenwood head unit as well as some better 3 1/2 inch speakers in the rear, great sound and more powerful but they cause my door cards to vibrate and rattle when a song with bass comes on. So the door cards they're coming off in the summer to address this. Just food for thought.

Finally when you have the door cards off tape/glue/wedge something in between the housing of the window controls and housing they sit in. You'll thanks me later.

Hope this all helps 

Hey, thanks so much flr all that. I have sound deadened the entire car now except the headliner which I’m not going to do, and then I haven’t done the doors yet as il do them while upgrading the speaker system. Can you try reword what you mean by the window controls, I have heard about this but do you just tighten the screws holding it in or put foam between the controls and the door??

thanks

[Lordyboi 5]

1 minute ago, Jay Bamrah said:

Hey, thanks so much flr all that. I have sound deadened the entire car now except the headliner which I’m not going to do, and then I haven’t done the doors yet as il do them while upgrading the speaker system. Can you try reword what you mean by the window controls, I have heard about this but do you just tighten the screws holding it in or put foam between the controls and the door??

thanks

It's a little hard to explain, I discovered what was buzzing after searching "gt86 door rattle and watching the video I linked, go to 1:40 they show what I mean. In the video they somehow remove it from the plastic piece that screws into the door card. I was too scare of breaking the clips when I tried to remove it so just wrapped mine in a load of electrical tape which seem to have done the trick for now but I think I'm just going to glue it in place when I next have the door cards off but its up to you what you choice to do.

The tolerance in the two plastic pieces is shocking and when the volume of the speakers is even moderately loud the control box vibrates like mad making an irritating buzzing sound. Make sure you do the window controls on both door cards as they both vibrate.  

I'll try and explain better if this still isn't enough

[Jay Bamrah 29]

11 hours ago, Lordyboi said:

It's a little hard to explain, I discovered what was buzzing after searching "gt86 door rattle and watching the video I linked, go to 1:40 they show what I mean. In the video they somehow remove it from the plastic piece that screws into the door card. I was too scare of breaking the clips when I tried to remove it so just wrapped mine in a load of electrical tape which seem to have done the trick for now but I think I'm just going to glue it in place when I next have the door cards off but its up to you what you choice to do.

The tolerance in the two plastic pieces is shocking and when the volume of the speakers is even moderately loud the control box vibrates like mad making an irritating buzzing sound. Make sure you do the window controls on both door cards as they both vibrate.  

I'll try and explain better if this still isn't enough

Oh no I see where he put the foam now okay thankyou! I will do that when I get my speakers changed all together, either that or when I wrap the door handles satin black

[Rich196 103]

I have done the above, i wrapped it in electrical tape until it was a tight fit, rattle gone.

[Jay Bamrah 29]

4 hours ago, Rich196 said:

I have done the above, i wrapped it in electrical tape until it was a tight fit, rattle gone.

Thanks for the idea bro. I finished every sound deadening in my car just the doors left officially from like an hour ago! Il let u guys know how I ended up doing it