tyre advice

gnc · Sep 15th, 2018, 08:30

hello, i have a 2004 t5 gt convertable, at the moment i have bridgstone adrenalin tyres with 4mm of tread left, they seem to be getting noisier by the day. i read that maybe michilin PR3 or pireli cinturato P7 may be qiueter.
any suggestions please.

volvoid · Sep 15th, 2018, 10:13

Whitewalls

gnc · Sep 15th, 2018, 10:35

strangly i hadnt considered those

volvoid · Sep 15th, 2018, 18:00

you could simply drive slower and/or turn the radio up.
At least until the existing rubber is worn out

Bonefishblues · Sep 15th, 2018, 19:33

Just take a look at the quoted dB ratings that the online guys like Camskill all quote. Because it's a logarithmic scale a couple of dB either way is noticeable.

volvoid · Sep 15th, 2018, 21:11

its an EU rule/regulation/law. ALL tyres sold in EU must display noise and grip info. Nowhere will we find anything about longevity.
A tyre is a compromise, between price, noise, grip, lifespan.
You cant have a good result in all categories.

XC90Mk1 · Sep 15th, 2018, 21:14

Quote:

Originally Posted by volvoid

its an EU rule/regulation/law. ALL tyres sold in EU must display noise and grip info. Nowhere will we find anything about longevity.
A tyre is a compromise, between price, noise, grip, lifespan.
You cant have a good result in all categories.

Whilst the longevity of a tyre will not be advertised, or certainly does not need to be, I did believe all tyres by law had to have a wear rating, it’s a three digit number....

Can’t say I know that much about it as I am only really interested in wet weather grip and noise, the cost of something being changed at 14,000 or 16,000 never really bothered me....

AndyV7o · Sep 15th, 2018, 21:24

Sorry to pee on anybody's strawberries, but the tyre lable noise values relate to external noise experienced by the outside world. It may or may not resemble interior noise, as one way to reduce exterior noise is to direct the sound inwards which can make it louder inside...

Bonefishblues · Sep 15th, 2018, 21:33

Quote:

Originally Posted by AndyV7o

Sorry to pee on anybody's strawberries, but the tyre lable noise values relate to external noise experienced by the outside world. It may or may not resemble interior noise, as one way to reduce exterior noise is to direct the sound inwards which can make it louder inside...

How would a tyre be designed to do that?

AndyV7o · Sep 15th, 2018, 21:50

Its to do with how the grooves of the tread pattern deflect the noise, the noise of a tyre is caused by air being compressed and expelled by the tread pattern and road surface, how the tread pattern is formed influences where and how this noise is emitted. I dont know more than that, but its a thing. The thing about deflecting tyre noise inward was said by someone in the industry, and Im repeating it.

Sep 15th, 2018, 08:30	#1
gnc Junior Member Last Online: Apr 24th, 2019 12:39 Join Date: Mar 2018 Location: spalding	tyre advice hello, i have a 2004 t5 gt convertable, at the moment i have bridgstone adrenalin tyres with 4mm of tread left, they seem to be getting noisier by the day. i read that maybe michilin PR3 or pireli cinturato P7 may be qiueter. any suggestions please.

Sep 15th, 2018, 10:13	#2
volvoid Monster Raving Loony Last Online: Nov 12th, 2018 20:03 Join Date: Oct 2013 Location: hitchin	Whitewalls __________________ 1994 850 2.0 bought at 32,000 miles used daily now 45,000. Still like a nearly-new car 2004 filthy polluting diesel VW

Sep 15th, 2018, 18:00	#4
volvoid Monster Raving Loony Last Online: Nov 12th, 2018 20:03 Join Date: Oct 2013 Location: hitchin	you could simply drive slower and/or turn the radio up. At least until the existing rubber is worn out __________________ 1994 850 2.0 bought at 32,000 miles used daily now 45,000. Still like a nearly-new car 2004 filthy polluting diesel VW

Sep 15th, 2018, 21:11	#6
volvoid Monster Raving Loony Last Online: Nov 12th, 2018 20:03 Join Date: Oct 2013 Location: hitchin	its an EU rule/regulation/law. ALL tyres sold in EU must display noise and grip info. Nowhere will we find anything about longevity. A tyre is a compromise, between price, noise, grip, lifespan. You cant have a good result in all categories. __________________ 1994 850 2.0 bought at 32,000 miles used daily now 45,000. Still like a nearly-new car 2004 filthy polluting diesel VW

Sep 15th, 2018, 10:35	#3
gnc Junior Member Last Online: Apr 24th, 2019 12:39 Join Date: Mar 2018 Location: spalding	strangly i hadnt considered those

Sep 15th, 2018, 19:33	#5
Bonefishblues Premier Member Last Online: Today 23:06 Join Date: Oct 2014 Location: Near Bicester, Oxon	Just take a look at the quoted dB ratings that the online guys like Camskill all quote. Because it's a logarithmic scale a couple of dB either way is noticeable.

Sep 15th, 2018, 21:24	#8
AndyV7o Premier Member Last Online: Jun 21st, 2021 20:47 Join Date: Jun 2018 Location: Creswell	Sorry to pee on anybody's strawberries, but the tyre lable noise values relate to external noise experienced by the outside world. It may or may not resemble interior noise, as one way to reduce exterior noise is to direct the sound inwards which can make it louder inside...

Sep 15th, 2018, 21:50	#10
AndyV7o Premier Member Last Online: Jun 21st, 2021 20:47 Join Date: Jun 2018 Location: Creswell	Its to do with how the grooves of the tread pattern deflect the noise, the noise of a tyre is caused by air being compressed and expelled by the tread pattern and road surface, how the tread pattern is formed influences where and how this noise is emitted. I dont know more than that, but its a thing. The thing about deflecting tyre noise inward was said by someone in the industry, and Im repeating it.

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