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Thread: Noise Deadening/Sound Proofing Signum

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    Default Noise Deadening/Sound Proofing Signum

    I am sick of the constant roadnoise/drone that (seems to) come from the rear of the Signum on any road surface above 40mph - on good surfaces its acceptable, on poor road surfaces its unbearable.

    Tyres, alignment, bearings etc all been checked and all are OK - just seems to be noisy, particulary for those in the rear.

    I am thinking about sound deadening the boot area as this seems quite easy (from under the raer seats, back through the wheel well)

    Anyone done this, and how did it work out? The way I see it is I have nothing to loose...

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    Regular Member videodoctor's Avatar
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    I put 2 layers of felt underlay in the boot of my Vectra and also removed the side covers over the rear shocks and sound deadened them.I cannot say it made much difference..The only thing that cured it for me was to replace all four tyres from the Bridestone Turansas to Michelin Premacy's.It cost me a few hundred quid but the results were much reduced road noise.

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    Regular Member lee gsi's Avatar
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    Had this a few times at work and 9 times out of 10 its to do with the tyres.

    If you have different make tyres on the front try swapping front to back.

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    East Scotland Regional Organiser signumboy's Avatar
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    try lining you boot with self adhesive lead flashing son has done that to stop the roar off his exhaust and says it works ...still sound loud to me

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    Ex Vec-C Admin Deztroyer's Avatar
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    Quote Originally Posted by lee gsi View Post
    Had this a few times at work and 9 times out of 10 its to do with the tyres.

    If you have different make tyres on the front try swapping front to back.

    i tend ti agree with Lee - i've never experienced any issues with the sound from the rear of either of my siggys - what make/model of tyre have you got on the rears? are they different to the fronts - can you swap front to rear and see if the noise improves or changes locations



    then again it might be a bearing

    0-Large smile ......every time it's driven

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    Thanks all

    At the moment I have x4 vredestein ultrc sessantas on – all 4 area nearly shot.

    I didn’t really notice a change (i.e drop) in noise when these were put on to replace the worn out, NCT5’s. I’m looking at Kumho KH31’s as replacements. Wheel alignment has been checked (and adjusted slightly) every 10k miles. No noticeable change in noise before and after adjustment

    The trouble I have with using, or relying on tyres is that I have no guarantees that the tyre I buy (whether it is 50 or 150) is quiet, and whatever tyre I buy I am stick with for 12 – 24 months. I have heard good things about Primacy HP, but 4 are going to set me back over 400, which is a lot to find out that they are as noisy as a set of 4 Kumhos at 250.

    Sound proofing is somewhat of a guarantee that I will get reduced road noise

    deztroyer – what tyre have you used on your Signum, and which model was your Signum? (mine is 1.9cdti Design (sports suspension))

    Lee - have you found any particular tyre to be quiet on the Signum?

    Thanks

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    Full Member Big Sig's Avatar
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    Dynamat or what ever it's called, line the boot with it.

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    Regular Member mark_647's Avatar
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    Dynamat is supposed to be very good. Pretty pricy though lol

    Type "car sound proofing" in ebay, theres plenty of choice, not too badly priced. I often think about this. I dont have any real sound issues, but think it would be nice to make it a little quieter and tighten up some odd rattles.

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    Quote Originally Posted by snapsnap View Post
    Thanks all

    At the moment I have x4 vredestein ultrc sessantas on all 4 area nearly shot.

    I didnt really notice a change (i.e drop) in noise when these were put on to replace the worn out, NCT5s. Im looking at Kumho KH31s as replacements. Wheel alignment has been checked (and adjusted slightly) every 10k miles. No noticeable change in noise before and after adjustment

    The trouble I have with using, or relying on tyres is that I have no guarantees that the tyre I buy (whether it is 50 or 150) is quiet, and whatever tyre I buy I am stick with for 12 24 months. I have heard good things about Primacy HP, but 4 are going to set me back over 400, which is a lot to find out that they are as noisy as a set of 4 Kumhos at 250.

    Sound proofing is somewhat of a guarantee that I will get reduced road noise

    deztroyer what tyre have you used on your Signum, and which model was your Signum? (mine is 1.9cdti Design (sports suspension))

    Lee - have you found any particular tyre to be quiet on the Signum?

    Thanks

    Hi Mate,

    i've had a 2.0t elegance which ran goodyear optigrips on standard guise (16's) then i uprated to bilstein b6's with eibach pro springs and had 18"s which ran on pirelli rosso's (very quiet) and federal ss595's which were a little noisy - but not bad for a 65 tyre

    then the 2.8v6t elite had cheap budget sunni's on when i bought it which were a little noisy (and not very grippy) and i replaced these with the Neuton's which are a budget tyre from neobros BUT very good performance

    Hth

    regards
    Dez

    0-Large smile ......every time it's driven

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