Police say Im too loud!!!!!!

Police say Im too loud!!!!!!

Author
Discussion

stevieturbo

17,260 posts

247 months

Wednesday 21st January 2015
quotequote all
stubbsey said:
Well,
Ive driven by and overtaken 8 Police cars since Sunday and not one of them even blinked!! Sundays amn must have been bored!!
Not bored, probably just an asshole

StefanVXR8

3,603 posts

198 months

Thursday 22nd January 2015
quotequote all
stubbsey said:
Well,
Ive driven by and overtaken 8 Police cars since Sunday and not one of them even blinked!! Sundays amn must have been bored!!
Don't know what he was on about mate, you and I had a perfectly good conversation across two lanes whilst travelling up the M3 one morning!

wink

Stef

newvxr8rcy

8 posts

114 months

Thursday 22nd January 2015
quotequote all
Hi mate I was pulled in July by one of these spot checks.
I have a switchable exhaust fitted by Monkfish which was on load
at the time.
I turned it to quit and sat their smug in the thought I had got away
with it.
They checked all my documents all in order, they then said we want to
check your exhaust.
pc plod said here in Plymouth the db limit is 80, but as their are a lot
of modified cars they will let you go if no higher than 90db.
I had to rev it to 4000 rpm twice, with about 10 cops stood behind the car.
They said the first run it was 110db & the second run was 111db.
O fxxk I thought, I am now on their watch list & have to be have myself till
next July.
Pc said if they pull me in again they may crush the car
I would hate to think what the db reading would be on loud.
When I was just about to pull away the cop did say it sounded bloody gorgeous.

ARAF

20,759 posts

223 months

Thursday 22nd January 2015
quotequote all
newvxr8rcy said:
Hi mate I was pulled in July by one of these spot checks.
I have a switchable exhaust fitted by Monkfish which was on load
at the time.
I turned it to quit and sat their smug in the thought I had got away
with it.
They checked all my documents all in order, they then said we want to
check your exhaust.
pc plod said here in Plymouth the db limit is 80, but as their are a lot
of modified cars they will let you go if no higher than 90db.
I had to rev it to 4000 rpm twice, with about 10 cops stood behind the car.
They said the first run it was 110db & the second run was 111db.
O fxxk I thought, I am now on their watch list & have to be have myself till
next July.
Pc said if they pull me in again they may crush the car
I would hate to think what the db reading would be on loud.
When I was just about to pull away the cop did say it sounded bloody gorgeous.
No way is your car that loud in quiet mode. They weren't using their equipment correctly. As for the dB limit being 80 in Plymouth, unless they have left the UK and EC, they have to abide by the higher authority. Below in an excerpt from an EC proposal for NEW vehicles, proposed in 2012.

[quote=transport&environment]5. An absolute not-to-exceed limit of 90 decibels under any driving conditions must be added to the
‘additional sound emissions provision’ (ASEP) to protect the public.xiv This is needed to ensure
these vehicles do not create disturbing and damaging levels of extreme noise. The ASEP as
currently proposed would legalise high powered vehicles to produce extreme noise over 100
decibels - such as during hard acceleration. A not-to-exceed limit will be easy to measure and
straightforward for public authorities to check and enforce;
The current UK legislation says "CONTROL OF EMISSIONS
Silencers

54.—(1) Every vehicle propelled by an internal combustion engine shall be fitted with an exhaust system including a silencer and the exhaust gases from the engine shall not escape into the atmosphere without first passing through the silencer.
(2) Every exhaust system and silencer shall be maintained in good and efficient working order and shall not be altered so as to increase the noise made by the escape of exhaust gases." and refers to an EC directive 77/212.

Basically, the law is 89dB at 2/3 of maximum rev range, unless the car was louder than this in original manufactured condition.

When I used to race (bikes) the static test was 95dB at 50cm from the exhaust tip, at a 45 deg angle from the outlet, in an open area - which equated to 85dB dynamic at 20 or 30 metres (I can't remember which), which was the actual regulation.

Built up areas and even people will reflect noise (so the 10 coppers standing near your car would have affected your result) and if the meter probe had caught any of your gas pulses, it would have seriously affected the result.

hsvgts454

117 posts

111 months

Thursday 22nd January 2015
quotequote all
ARAF said:
The current UK legislation says "CONTROL OF EMISSIONS
Silencers

54.—(1) Every vehicle propelled by an internal combustion engine shall be fitted with an exhaust system including a silencer and the exhaust gases from the engine shall not escape into the atmosphere without first passing through the silencer.
(2) Every exhaust system and silencer shall be maintained in good and efficient working order and shall not be altered so as to increase the noise made by the escape of exhaust gases." and refers to an EC directive 77/212.

Basically, the law is 89dB at 2/3 of maximum rev range, unless the car was louder than this in original manufactured condition.

When I used to race (bikes) the static test was 95dB at 50cm from the exhaust tip, at a 45 deg angle from the outlet, in an open area - which equated to 85dB dynamic at 20 or 30 metres (I can't remember which), which was the actual regulation.

Built up areas and even people will reflect noise (so the 10 coppers standing near your car would have affected your result) and if the meter probe had caught any of your gas pulses, it would have seriously affected the result.
Whs ^^^




Wyld Stallyn

2,056 posts

128 months

Friday 23rd January 2015
quotequote all
Chances are that this is what's being used to measure loudness:



If so er Sorry I had a hand in it's development. getmecoat


If I were to be taking the measurements to get something meaningful:

I'd be measuring at a 45 Degree angle at a distance of 1 metre in an open area with the equipment mounted in an isolated cradle.

Yes, nearby objects and buildings will have an impact on the readings.



Ambient Noise levels should be taken into consideration and when measuring Noise levels for Public Performance they are -Roadside measurements would be a joke imho.

With the XL2 units the Menu Structure is not User Friendly and is very easy to alter settings in error - Changing the weightings will alter the reading below 1kHz.

I doubt that an inexperienced user with limited training could come up with meaningful measurements consistently, let alone understand how a log scale works and what it means.

The units and microphone will require calibrating as a matched pair - the mic is often forgotten when it comes to calibration wink




IIRC Monaro isn't fully type approved for the UK (not sure about VXR8s etc) and therefore could be counted at the higher 'import' level of 99dB








hman

7,487 posts

194 months

Friday 23rd January 2015
quotequote all
The point is :-


Every exhaust system and silencer shall be maintained in good and efficient working order and shall not be altered so as to increase the noise made by the escape of exhaust gases."


If you have modified your exhaust and it has made it the noise of escaping gas louder then you are in contravention of this.



S59's are for exactly this (and scrotacrossers riding where they shouldnt)

Bibbs

3,733 posts

210 months

Friday 23rd January 2015
quotequote all
hman said:
The point is :-

Every exhaust system and silencer shall be maintained in good and efficient working order and shall not be altered so as to increase the noise made by the escape of exhaust gases."

If you have modified your exhaust and it has made it the noise of escaping gas louder then you are in contravention of this.

S59's are for exactly this (and scrotacrossers riding where they shouldnt)
Okay, but what if the new exhaust is a complete swap, and it's louder than OEM.

It's in working order, and I've not "altered the exhaust" at all (I've not drilled holes, or welded a whistle in the end).

stevieturbo

17,260 posts

247 months

Friday 23rd January 2015
quotequote all
newvxr8rcy said:
Hi mate I was pulled in July by one of these spot checks.
I have a switchable exhaust fitted by Monkfish which was on load
at the time.
I turned it to quit and sat their smug in the thought I had got away
with it.
They checked all my documents all in order, they then said we want to
check your exhaust.
pc plod said here in Plymouth the db limit is 80, but as their are a lot
of modified cars they will let you go if no higher than 90db.
I had to rev it to 4000 rpm twice, with about 10 cops stood behind the car.
They said the first run it was 110db & the second run was 111db.
O fxxk I thought, I am now on their watch list & have to be have myself till
next July.
Pc said if they pull me in again they may crush the car
I would hate to think what the db reading would be on loud.
When I was just about to pull away the cop did say it sounded bloody gorgeous.
You need to report a complaint about the harassment. Also, if they try and force some sort of penalty against you, they'd need to state and comply with a very specific test procedure. They would need to prove the test meter they are using is calibrated and approved for such use in the UK ( to my knowledge none are yet for their purposes )

But making threats like crushing the car...again that is bullst and such aggressive tactics should be treated as harassment and you need to lodge a complaint about their attitudes and behaviour to whoever you make complaints too within your local police.

Plus as others say about the bullst claims that somehow their local region has different rules and laws from the rest of the UK.

Cops like that should not be tolerated and allowed to get away with it

H5V VE

611 posts

203 months

Friday 23rd January 2015
quotequote all
Bibbs said:
Okay, but what if the new exhaust is a complete swap, and it's louder than OEM.

It's in working order, and I've not "altered the exhaust" at all (I've not drilled holes, or welded a whistle in the end).
You wouldnt have a leg to stand on.

I would imagine that the argument goes something like "its not the OEM exhaust, therefore it is altered". The fact is that you have not just altered a part of the OEM one, you have altered the whole thing by replacing it with something non-OEM.

ArnieVXR

2,449 posts

183 months

Friday 23rd January 2015
quotequote all
So is the officer in the story really saying that a fully OEM set-up car which is in good working order will be crushed if it has an exhaust that is noisier than 80 (or 90) decibels? I really can't see that happening. It would be interesting to get a stock Monaro and VXR8 tested, to see how noisey they are.

That said, I agree that really loud exhausts are a nuisance and that there is no need for them. I've never felt inclined to buy something that shakes my neighbours out of their beds in the morning. Bit too antisocial for my liking.

Must get the VT2 tested...

ArnieVXR

2,449 posts

183 months

Friday 23rd January 2015
quotequote all
Worth noting that turbos are great for robbing exhaust gases of their kinetic energy. Just an added plus of forced induction...saving the world from noise polution.

Magic919

14,126 posts

201 months

Friday 23rd January 2015
quotequote all
My standard VXR8 was low eighties on the meter at Thundar Road.

r8black

1,405 posts

129 months

Friday 23rd January 2015
quotequote all
Magic919 said:
My standard VXR8 was low eighties on the meter at Thundar Road.
She's not anymore

Magic919

14,126 posts

201 months

Friday 23rd January 2015
quotequote all
Yeah, that went out the window once I changed the exhaust.

ArnieVXR

2,449 posts

183 months

Friday 23rd January 2015
quotequote all
ARAF said:
Basically, the law is 89dB at 2/3 of maximum rev range, unless the car was louder than this in original manufactured condition.
So, if I had a switchable rev limiter set at 3000rpm they'd have to do the test at 2000rpm?


R8OMG

176 posts

130 months

Friday 23rd January 2015
quotequote all
ArnieVXR said:
That said, I agree that really loud exhausts are a nuisance and that there is no need for them. I've never felt inclined to buy something that shakes my neighbours out of their beds in the morning. Bit too antisocial for my liking.

Must get the VT2 tested...
Each to their own I suppose. In a neighbourhood environment a lot depends on when and how you drive it. I wouldn't dream of starting mine up every morning at 7:30am for work as I can appreciate that would upset a few people. Sitting there on the drive revvin the nuts of it would also a no no but if you like it and are sensible with it I can't see a major issue, though once out of the village it's a different story biggrin

ARAF

20,759 posts

223 months

Friday 23rd January 2015
quotequote all
ArnieVXR said:
ARAF said:
Basically, the law is 89dB at 2/3 of maximum rev range, unless the car was louder than this in original manufactured condition.
So, if I had a switchable rev limiter set at 3000rpm they'd have to do the test at 2000rpm?
There's an idea - you at least wouldn't be able to test above 3k revs. smile

The only problem is if you were caught, then I reckon they would have a pretty strong case of obstruction, or attempting to pervert the course of justice against you.

Tattooboy

7,946 posts

178 months

Friday 23rd January 2015
quotequote all
Is the car DB rating on the V5 form?

ArnieVXR

2,449 posts

183 months

Friday 23rd January 2015
quotequote all
ARAF said:
There's an idea - you at least wouldn't be able to test above 3k revs. smile

The only problem is if you were caught, then I reckon they would have a pretty strong case of obstruction, or attempting to pervert the course of justice against you.
Only if they can demostrate that you've been driving without the limiter on. As 3000rpm is well over a 100mph in sixth, you've got a strong case for arguing you don't need the extra rev range. Good for fuel economy too. Honest officer.

Anyway, isn't a switchable exhaust also obstructing, etc?