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#331746 - 24th Jun 2009 9:57am Driver given fixed penatly for loud exhaust...
StuyMac Offline

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Registered: 24th Nov 2003
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A sign of things to come...? think

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#331748 - 24th Jun 2009 10:10am Re: Driver given fixed penatly for loud exhaust... [Re: StuyMac]
BMW Joe Offline
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Registered: 30th Apr 2006
Posts: 12369
Loc: Birkenhead
Not a bad idea IMO, provided it is only enforced during certain hours i.e. 11pm-6am

However, even if your exhaust can produce 90dB+, you might not be stupid enough to drive around red lining it for it to be that loud, so a bit unfair in that sense
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#331752 - 24th Jun 2009 10:31am Re: Driver given fixed penatly for loud exhaust... [Re: BMW Joe]
diggingdeeper Offline

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Registered: 9th Jul 2008
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"Vehicle noise levels should be between 82 and 89"

Do you get fined if it is too quiet as well then??????????
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#331758 - 24th Jun 2009 11:34am Re: Driver given fixed penatly for loud exhaust... [Re: diggingdeeper]
Davey_Martin Offline
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Registered: 17th Jul 2007
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Originally Posted By: diggingdeeper
"Vehicle noise levels should be between 82 and 89"

Do you get fined if it is too quiet as well then??????????


:)) be quite interesting if that's the case

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#331760 - 24th Jun 2009 11:52am Re: Driver given fixed penatly for loud exhaust... [Re: Davey_Martin]
MattLFC Offline
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Registered: 14th Aug 2004
Posts: 22315
Loc: Moreton/Beirut/Mobile
Quote:
Not a bad idea IMO, provided it is only enforced during certain hours i.e. 11pm-6am

How the fook would you enforce it "between hours"? You'g be expected to swap your backbox over each time you wanted to go out.

To be honest, they should bring in an MOT failing blanket ban on anything louder than x dB over a certain amount.

Quite what the attraction is, ive never understood, living on a bus route, but quiet road, and being able to compare them, most loud exhausts simply sound like an Arriva bus!

But I guess loud = speed & big balls or summit lyk that.

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#331763 - 24th Jun 2009 12:25pm Re: Driver given fixed penatly for loud exhaust... [Re: MattLFC]
MGCraig Offline
AlfaHolic
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Registered: 16th Apr 2006
Posts: 5488
Loc: Spital
More than Three times the aceptable level, which in this case is apparently 89db...

Hmmm.. So Id make that over 267db! Of course he should be fined
raftl raftl raftl

Thats a bad bit of reporting there, 267db is impossible for a car, unless it had like a Jet Engine or something, and Boeing 747s only produce around 140db.

I know for a fact that these sound meters are ridiculously unreliable. Theyre used for scrutineering at Race Weekends... and never give a set level. Maybe if they inrease the allowed sound levels to around 108 db (Motorsport levels) then the problem would be solved. Older cars (Like Metros) I always rememebr being loud because of the choke etc, much louder than modern cars and most modified cars.


What if your driving a rally car around as your daily driver (Like I know some people do) What then? The car is road legel, otherwise theyd have been informed during MOTs etc.

Maybe they should ban Aftermarket exhausts on anything under a 1.8, that would stop most of these anti social Modded Corsas tease
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#331764 - 24th Jun 2009 12:25pm Re: Driver given fixed penatly for loud exhaust... [Re: MattLFC]
Pete_Robbo Offline

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Registered: 11th Aug 2008
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wow no way lol i best sort mine out lol thumbsup haha lol
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#331766 - 24th Jun 2009 12:30pm Re: Driver given fixed penatly for loud exhaust... [Re: Pete_Robbo]
Davey_Martin Offline
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Registered: 17th Jul 2007
Posts: 2888
Loc: New Ferry
summit lyk that < haha - good one!

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#331769 - 24th Jun 2009 12:43pm Re: Driver given fixed penatly for loud exhaust... [Re: Davey_Martin]
diggingdeeper Offline

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Registered: 9th Jul 2008
Posts: 9892
Loc: Birkenhead
db is a logarithmic scale .... with power everytime the power doubles it adds 3db.

3 times the limit would be 89 + 4.8 = 93.8db.

One convenient thing about db is that 10db increase is an increase of 10 times.

One of the reasons a logarithmic scale is used is to reduce the massive figures to a readable/reasonable level. The limit is 89db above the 0db reference level (which is not silence!) this is 7943282347 times louder than the reference.

Construction and use regulations used to be quite loose on modified exhausts - the manufacturer of the vehicle had a specified limit they had to meet. If you replaced your exhaust the regulations said the noise had to be no louder than the original exhaust (I think this was in the MOT as well). Comparable wasn't specified as measured by instruments or by hearing, nor was it specified as an average or a peak noise level.
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#331770 - 24th Jun 2009 12:48pm Re: Driver given fixed penatly for loud exhaust... [Re: MGCraig]
BMW Joe Offline
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Registered: 30th Apr 2006
Posts: 12369
Loc: Birkenhead
Originally Posted By: MattLFC
How the fook would you enforce it "between hours"?

The same as you would if it wasn't during restricted hours?! think


Originally Posted By: AlfaCraig
More than Three times the aceptable level, which in this case is apparently 89db...

Hmmm.. So Id make that over 267db!

no

Decibels are a logarithmic measurement, so 3 times would be more like 100dB
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#331772 - 24th Jun 2009 12:50pm Re: Driver given fixed penatly for loud exhaust... [Re: BMW Joe]
BMW Joe Offline
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Registered: 30th Apr 2006
Posts: 12369
Loc: Birkenhead
Beat me to it DD lol
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#331784 - 24th Jun 2009 1:32pm Re: Driver given fixed penatly for loud exhaust... [Re: BMW Joe]
StuyMac Offline

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Registered: 24th Nov 2003
Posts: 12002
Loc: Wirralshire
....and me raftl

200+ Db omg raftl
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#331808 - 24th Jun 2009 6:21pm Re: Driver given fixed penatly for loud exhaust... [Re: StuyMac]
peodude Offline
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Registered: 7th Nov 2007
Posts: 205
Loc: Birkenhead
If you car is any louder than the original exhaust then it is illegal, you can not change the exhaust for even a slightly louder one.

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#331814 - 24th Jun 2009 7:45pm Re: Driver given fixed penatly for loud exhaust... [Re: peodude]
Pete_Robbo Offline

Keep It Real !!
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Registered: 11th Aug 2008
Posts: 6640
Loc: Wirral
why sell them then and if your emmisions are in the legal spec it,s ok

No MOT test station tests the loudness of your car

as yet
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#331849 - 24th Jun 2009 10:41pm Re: Driver given fixed penatly for loud exhaust... [Re: Pete_Robbo]
Token Offline
Enthusiast

Registered: 13th Apr 2009
Posts: 108
Loc: Wallasey
us bikers have been dealing with these fines for years, throughout the country, and now getting loads of shit over our plates.... I'm surprised its only being enforced for cars now....

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