Noise reduction.

[am1w]

I am not happy with the level of tyre/road noise I get on certain types of tarmac. It is especially awful driving on the M4 to Heathrow.
Tyres are Bridgestones on 18" Monza Shadows.
Is there anything I can do to reduce this apart from changing the tyres?

[Steve30]

It's a diffiicult one to achive that one? The only thing to do would be put 17s on with better tyres!!
Maybe snoopy would do sound insulation ie more spoonges

[Exonian]

I would think all the waxoyling Snoopy has done would act as a sound barrier. Might be an option with dual benefits......

[am1w]

Thanks lads.
Just wait for Snoops to take this up!

[Snoopy]

I know what you meen about the bridgestones mine are noisy too.
To reduce noise.
Sound absorbing foam (felt etc like you fit as underlay in homes). Theres some under the carpet already but no harm in adding more.
Also to stop resonance, damping matt,  also as a side benifit in moving the frequency most dominent with noise and reducing noise peaks is products like dynamat, brownbread, etc that the car audio guys use. http://www.caraudiodirect.co.uk/deadening.html 

I do actually know some of the tricks that companys like ford, alfa, nissan use in there 'press fleet' cars they send to the magazines

[am1w]

I know what you meen about the bridgestones mine are noisy too.
To reduce noise.
Sound absorbing foam (felt etc like you fit as underlay in homes). Theres some under the carpet already but no harm in adding more.
Also to stop resonance, damping matt,  also as a side benifit in moving the frequency most dominent with noise and reducing noise peaks is products like dynamat, brownbread, etc that the car audio guys use. http://www.caraudiodirect.co.uk/deadening.html 
I do actually know some of the tricks that companys like ford, alfa, nissan use in there 'press fleet' cars they send to the magazines

Thanks Snoops. Very useful site.
I will try and do a 1/3 Octave band or narrower analysis with my B&K Sound Level Meter and Filters and then also find out the main source of noise and vibration. It is a pain in the arse. I hate the drumming noise I get when on certain Motorway Tarmac.

[Snoopy]

Thanks Snoops. Very useful site.
I will try and do a 1/3 Octave band or narrower analysis with my B&K Sound Level Meter and Filters and then also find out the main source of noise and vibration. It is a pain in the arse. I hate the drumming noise I get when on certain Motorway Tarmac.

Please do and let me see the results 

[am1w]

Thanks Snoops. Very useful site.
I will try and do a 1/3 Octave band or narrower analysis with my B&K Sound Level Meter and Filters and then also find out the main source of noise and vibration. It is a pain in the arse. I hate the drumming noise I get when on certain Motorway Tarmac.

Please do and let me see the results 

I will try my best.
Will get one of my work colleagues to help whilst I drive myself round the bend!
One of the reasons I did not get a sunroof is also because of noise. One can really hear the wind rushing over one's head at speed. Have to drive with the blind drawn which defeats the whole purpose.

[Snoopy]

Not noticed it myself. I do have a habit of driving with the roof tilted in daily use, with the sunroof im yet to even switch the heater unit from off mode. 

[R32UK]

I had the bridgstones on 17" and they were still very noisy. Changing tyres is probably the only option