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Thread: Noisy inside cabin - Sound proofing

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    Default Noisy inside cabin - Sound proofing

    Long story short - my Vecci is noisy as hell inside on the motorway. I mean LOUD. when I am on the motorway I need to crank the tunes to even hear them. Now, there has been many discussions about sound proofing, but has anyone here actually gone to the extend to do all the doors and boot and changed speakers to improve sound? Is it worth it. I have been in a Corolla and on the motorway there is just no comparing the two! Sooooo much more quiet.

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    Vehicle : Vectra

    Trim : Elite Auto

    Engine : 2.2 Direct Petrol

    Year : 2006

    Default

    A couple of things:

    - On the facelift, they removed (cost cutting??) most of the soundproofing from the rear wells. You can add some dynamat to improve this.

    - Do you still have Goodyear NCT5s on your car? These are extremely noisy tyres (esp on motorway concrete) and combined with the above, DOES make the cabin very very noisy.

    Solution: add some soundproofing and go for some quieter tyres.

    I changed my Goodyears for some Pirelli 6000s recently and the noise has gone down bigtime. Still not as quiet as my dad's old Nissan Almera but hey ho...

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    Regular Member Al 22 dti's Avatar
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    Vehicle : 57 zafira 1.9 cdti design

    Trim : design

    Engine : 1.9 cdti

    Year : 2008

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    i wonder if he's mistaking the noise for wheel drone?

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    Regular Member Dan_BlackSRi's Avatar
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    Vehicle : Vectra SRi

    Trim : XP NAV

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    Year : 2007

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    Quote Originally Posted by Al 22 dti View Post
    i wonder if he's mistaking the noise for wheel drone?
    Possibly... he could have some Federal Super Steels fitted

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    Vehicle : vectra c

    Trim : ls

    Engine : 1800

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    check the make of tyres on the car and the tread

    because i had the same problem and i thought it was a bearing
    but i solved it and it was the tyres

    i bought 2x goodyear excellence noise gone
    very quiet now
    http://ssl.delti.com/cgi-bin/reifenb...153195&dsco=10

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    I think dynamatting the boot will be a good start.

    BTW not running NCTs. I have Conti Premium Contact 2s mounted and they tend to be OKish.

    I might just toss in some new shocks and springs to be on the safe side...

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    Regular Member Das's Avatar
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    Vehicle : Lada

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    Year : 1954

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    Quote Originally Posted by ShamusUK View Post

    - Do you still have Goodyear NCT5s on your car? These are extremely noisy tyres (esp on motorway concrete) and combined with the above, DOES make the cabin very very noisy.
    I have NCT5's on mine and find them very quiet tbh, and 75% of my driving is motorway.

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    Quote Originally Posted by Al 22 dti View Post
    i wonder if he's mistaking the noise for wheel drone?
    Hope not. noticed that the suspension and steering are not at their best. Noticed some pulling to the left too. Even the wife complained - good excuse to go and spend some money.

    Thinking:
    - Bilstein B6 all around
    - Eibach springs.
    - good helping of Dynamat or Brown Bread
    - maybe some new speakers while I am in the doors anyway
    - new bushes where I can get to them (droplinks etc.)

    Sounds like a busy week ahead specing them and ordering

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    I did a full dyanmat of the boot (including the foam overlay stuff). Not worth it IMO

    Changing the old worn out tyres made a bigger difference.

    Im not convinced that the NCT's are a noisy tyre outright; they are a noisy tyre when worn out (as are most, I imagine)

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    Quote Originally Posted by snapsnap View Post
    I did a full dyanmat of the boot (including the foam overlay stuff). Not worth it IMO

    Changing the old worn out tyres made a bigger difference.

    Im not convinced that the NCT's are a noisy tyre outright; they are a noisy tyre when worn out (as are most, I imagine)
    Unfortunately they are almost brand new - Unless 10k on a set is old now...

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