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Dynamat/Noise reduction
#495540
02/12/2007 17:15
02/12/2007 17:15
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Redd
Unregistered
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Redd
Unregistered
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has anyone tried dynamat or noise reduction materials/foams in their coop. has it made any difference?
redd
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Re: Dynamat/Noise reduction
[Re: ]
#495565
02/12/2007 18:25
02/12/2007 18:25
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flyingcustard
Unregistered
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flyingcustard
Unregistered
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Bunflash on here has,the faster he goes the quieter it gets
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Re: Dynamat/Noise reduction
[Re: sugerbear]
#495650
02/12/2007 21:53
02/12/2007 21:53
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warnysouth
Unregistered
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warnysouth
Unregistered
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You can put the sound deadening everywhere. I'm planning
Inside Doors Boot floor Boot sides Boot lid Under reat seats Under carpet Under headlining
In that order, (easy->hard)
Last edited by warnysouth; 02/12/2007 21:53.
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Re: Dynamat/Noise reduction
[Re: ]
#495666
02/12/2007 22:26
02/12/2007 22:26
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Joined: Dec 2005
Posts: 241 Sidmouth, Devon
alex1982
Club Member 653
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Club Member 653
Making a profit
Joined: Dec 2005
Posts: 241
Sidmouth, Devon
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I have done Under Headlining Boot Floor Tailgate Rear 3/4 panels Doors Under Carpet. Its made the car alot quieter at all speeds, however it probably has made it weigh about 2 tons.
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Re: Dynamat/Noise reduction
[Re: alex1982]
#495674
02/12/2007 22:42
02/12/2007 22:42
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Joined: Dec 2005
Posts: 21,071 Chertsey in the Thames
bockers
Hon Club Member 007
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Hon Club Member 007
Forum Fossil
Joined: Dec 2005
Posts: 21,071
Chertsey in the Thames
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I have done as Warney has said, even did the spare wheel bay But yet to do the roof and under the carpet. Doors were easy and i did outer and inner skin. The rear quarter panels are a doddle too as is the boot lid. Bought 30sq ft or edead from ebay, still have some left. Remember that covering 50% of the panel gives 90% of the benefit, so I did lots of squares of the stuff.
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Re: Dynamat/Noise reduction
[Re: bockers]
#495689
02/12/2007 23:29
02/12/2007 23:29
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Matty
Unregistered
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Matty
Unregistered
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And after you've done the doors you'll actually enjoy shutting them, they sound so much more solid.
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Re: Dynamat/Noise reduction
[Re: Kelv27]
#496012
03/12/2007 18:08
03/12/2007 18:08
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Redd
Unregistered
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Redd
Unregistered
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ive done the boot floor before in another car and it didnt give any noticeable improvement. bear in mind that there's usually already a layer of rubberised sound deadening material on the boot.
also did the roof on my 156 which already had a few small strips of sound deadening material from factory. i pretty much dynamated the whole roof - no difference.
im also thinking under rear seat is a waste of time as the fuel tank is there already.
thinking of doing the floor, doors, rear 3/4 panels and boot lid.
redd
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Re: Dynamat/Noise reduction
[Re: ]
#496028
03/12/2007 18:32
03/12/2007 18:32
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warnysouth
Unregistered
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warnysouth
Unregistered
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I reckon Redd is probably right. Most of the road noise surely comes from the floor, doors, rear quarter panels and also from the bulkhead area. Sounds logical.
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Re: Dynamat/Noise reduction
[Re: ]
#496056
03/12/2007 19:33
03/12/2007 19:33
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Joined: Dec 2005
Posts: 2,033 I WANT F40
S1MMA
Competition Level
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Competition Level
Joined: Dec 2005
Posts: 2,033
I WANT F40
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that's what I love about ICE, 99% of the forum is based on how to get more performance from a 20VT - yet the ICE section is more concerned in weighing the car down!
But then we enjoy the car more in traffic jams.......
On the subject of sound deadening, you can save a lot of $$$ by using roof flashing tape (I used to get a big roll from B&Q), although I'd recommend using a heat gun (i.e. paint stripper) to heat each strip/square up before applying it, and it'll bond so hard it'll never come off! Just be careful not to burn yourself, and don't heat it up too much, and you'll be fine.
Just applying the stuff cold is the biggest mistake you can make, any condensation - or in cold weather and it can come off. Even if it's not 100% bonded onto the surface, then you're not getting the full value of it.
Sideways a LOT
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Re: Dynamat/Noise reduction
[Re: Kelv27]
#496121
03/12/2007 21:29
03/12/2007 21:29
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Joined: Dec 2005
Posts: 2,033 I WANT F40
S1MMA
Competition Level
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Competition Level
Joined: Dec 2005
Posts: 2,033
I WANT F40
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it certainly does the job, Gouki on here used dynamat/brown bread on one door on one of his old cars, and used the B&Q flashing tape on the other one and asked me to see which door I thought was better. After plenty of knocking on the doors (probably denting them in the process) and listening to the sound from each door, I concluded (without knowing which was which) that the door with the flashing tape was better!(it resonated less, and had a deeper "thud" when knocking it). And you can line the whole panel with it because it's cheap.
It is slightly thinner than dynamat, but then even using twice as much of it sill still probably cost 25% of using 1/2 the dynamat. Per sq inch it's lighter also.
Sideways a LOT
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Re: Dynamat/Noise reduction
[Re: S1MMA]
#496198
03/12/2007 23:31
03/12/2007 23:31
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Redd
Unregistered
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Redd
Unregistered
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thanks for the tip simma! ill see if i can get roof flashing tape here. im not too fussed about weight. a box of dynamat weights 10kgs top. if i need the extra milliseconds ill empty the washer fluid and run with a half tank. and head to the gym - i weigh a fair bit. besides, the coop is a turbo. ill dial up another 0.1 bar of boost and the weight gain is irrelevant. but the comfort from reduced road noise for a daily driver makes a huge diff. redd
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Re: Dynamat/Noise reduction
[Re: ]
#496217
03/12/2007 23:49
03/12/2007 23:49
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warnysouth
Unregistered
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warnysouth
Unregistered
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Warning: roof flashing tape stinks! (well the stuff I bought does :)). Although I am reliably informed that the smell goes away....
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Re: Dynamat/Noise reduction
[Re: ]
#496318
04/12/2007 01:59
04/12/2007 01:59
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carlt
Unregistered
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carlt
Unregistered
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Why carnt you all use normal car dead sheet? Super cheap, self adhesive and exactly what all manufactures use as needed.
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Re: Dynamat/Noise reduction
[Re: ]
#496322
04/12/2007 02:05
04/12/2007 02:05
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The_Silver_Fox
Unregistered
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The_Silver_Fox
Unregistered
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Can you be more specific, google brings up nothing.
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Re: Dynamat/Noise reduction
[Re: ]
#496323
04/12/2007 02:08
04/12/2007 02:08
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carlt
Unregistered
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carlt
Unregistered
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Ill take some pics of what we use. Not sure how thick dynamat is etc but this stuff ought to do the job. Sticky backed too May only be available to trade not sure. Ill get some details tomorrow.
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Re: Dynamat/Noise reduction
[Re: ]
#496336
04/12/2007 02:17
04/12/2007 02:17
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The_Silver_Fox
Unregistered
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The_Silver_Fox
Unregistered
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Re: Dynamat/Noise reduction
[Re: ]
#496343
04/12/2007 02:32
04/12/2007 02:32
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Joined: Dec 2005
Posts: 7,705 Harpenden
sugerbear
Je suis un Coupé
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Je suis un Coupé
Joined: Dec 2005
Posts: 7,705
Harpenden
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Ill take some pics of what we use. Not sure how thick dynamat is etc but this stuff ought to do the job. Sticky backed too May only be available to trade not sure. Ill get some details tomorrow. Group buy !!!
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Re: Dynamat/Noise reduction
[Re: sugerbear]
#497996
06/12/2007 16:26
06/12/2007 16:26
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Joined: Dec 2005
Posts: 2,033 I WANT F40
S1MMA
Competition Level
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Competition Level
Joined: Dec 2005
Posts: 2,033
I WANT F40
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flashing tape is just bitumin tape, and it's adhesive on one side. It's used on roofs.
Is that similar to the stuff you're talking about carl?
Sideways a LOT
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Re: Dynamat/Noise reduction
[Re: ]
#502185
14/12/2007 00:23
14/12/2007 00:23
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Redd
Unregistered
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Redd
Unregistered
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had a look at the doors today. how do u get dynamat inside the doors without ripping off the white plastic sheeting that prevents water from getting into the car?
redd
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Re: Dynamat/Noise reduction
[Re: Kelv27]
#502376
14/12/2007 04:58
14/12/2007 04:58
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pag
Unregistered
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pag
Unregistered
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How does the price of these compare to other stuff available/flashing tape? sound deadening pads
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Re: Dynamat/Noise reduction
[Re: ]
#502383
14/12/2007 05:20
14/12/2007 05:20
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Joined: Jun 2007
Posts: 4,607 Malaysia..Glasgow at heart
Kelv27
Forum is my job
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Forum is my job
Joined: Jun 2007
Posts: 4,607
Malaysia..Glasgow at heart
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Hey Paul..the link doesn't seem to work
Nevermind ..found it.. I'm not too sure how these would perform but seems quite expensive for the size you are getting. Flashing tape is loads cheaper but you would probably need to use more layers of tape in order to get the same performance as that one or dynamat.
I spent about £7 on a roll of flashing tape and used the whole roll for 1 door. Thats with me applying about 3 to 4 layers of it.
Last edited by Kelv27; 14/12/2007 05:30. Reason: found it
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Re: Dynamat/Noise reduction
[Re: Kelv27]
#502425
14/12/2007 12:00
14/12/2007 12:00
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Joined: Jun 2006
Posts: 32,122 Cumbria
stan
Dr. Frankenstan
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Dr. Frankenstan
Forum Demigod
Joined: Jun 2006
Posts: 32,122
Cumbria
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I spent about £7 on a roll of flashing tape and used the whole roll for 1 door. Thats with me applying about 3 to 4 layers of it. Kelv, not trying to be funny but that is just overkill and is likely to cause you issues in the future The whole theory of sound proofing is to change the frequency at which the metal panels resonate. You can achieve this with a single layer and by only doing 50% of the panel. I'm sure Barnacle or Bockers did a good write-up on this recently.
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