Car Exhaust Noise
Discussion
simoid said:
daz3210 said:
simoid said:
Don't get sidetracked into any "I pay insurance and road tax, I don't drive a chav Saxo" rants, don't bother that the Policeman said "it looked loud", conentrate on the fact that your car didn't break any rules by being at X db at Y rpm.
Is that right though? From the way this has been explained, there is no rule of X db at Y rpm for the rpm used to test. The measure they have gives the measure it does, but the test should have been (as I understand it) Y-1500, for which there is currently no reading available. At Y-1500 the vehicle may or may not have been in contravention, but does that actually matter in this instance?
simoid said:
daz3210 said:
Almost, but not quite.
x db at y rpm is trying to show an offence.
Not having evidence at all is slightly different.
But by showing how they incorrectly came to their conclusion of rulebreaking, you're more likely to succeed.x db at y rpm is trying to show an offence.
Not having evidence at all is slightly different.
But I am unsure whether you even need to mention the x db at y rpm. Surely all you need is that the test should have been at y-1500 rpm, and the officer has not done a test at that.
Mastodon2 said:
Adrian W said:
Not the brightest thing i have seen posted on here
By the ridiculous standards of this test OP was subjected to, no standard Type R would pass the test anyway since they are 93db by most measures, so I'm not too worried about my aftermarket kit being non-compliant with these draconian and moronic rules. By a quick look at your garage, not a single one of your cars would pass the test either!Edited by Mastodon2 on Monday 8th October 17:52
Monkey boy 1 said:
Yes, I have their (Norfolk Police) paperwork which quotes noise test done in accordance with ISO5130 and have a copy of the latest ISO5130 which differs from the police form. As I have said earlier, they checked my car at 5250 RPM, ISO5130 states the test to be done ar 3750RPM. If my maths is correct, that is 1500RPM lower than the Police checked it at THAT is what I am arguing about
That's what you should concentrate on. Anything else is irrelevant. The test was defective as it was not carried out in accordance with ISO5130. I am surprised they made such a simple yet fundamental error because the information is readily available on the internet.Their actions smack of a zeal to implement a crack down coupled with reliance on the premise that nobody cba to mount a challenge over a £30 FPN which doesn't carry points.
Some bedtime reading - http://assets.dft.gov.uk/publications/trl-report-p...
More ammunition to demonstrate that the police dropped the ball.
Btw, TVR owners - see the graph on page 8.
I have often wondered about this.
I have a Noble and the exhaust is around 99db (tested at a track). Yes, it is loud but i have never had a problem with the police.
If i did get a difficult copper, what could they do? don't they have to test your car based on how loud a standard car would be?
never really understood the exhaust testing!
I have a Noble and the exhaust is around 99db (tested at a track). Yes, it is loud but i have never had a problem with the police.
If i did get a difficult copper, what could they do? don't they have to test your car based on how loud a standard car would be?
never really understood the exhaust testing!
Since when was there an official dB limit? I have always believed that as long as your car complied with the regs current at the time of its manufacture, you were fine. (Apart from one or two safety areas).
My GT3, completely standard, easily makes 100dB on a trackday test at 75% of maximum revs and gets even noisier after that but it still complies with the manufacturers settings. Illegal? It idles at well over the maximum number mentioned by the OP too, so surely I should be nicked and fined every time I drive it.
My GT3, completely standard, easily makes 100dB on a trackday test at 75% of maximum revs and gets even noisier after that but it still complies with the manufacturers settings. Illegal? It idles at well over the maximum number mentioned by the OP too, so surely I should be nicked and fined every time I drive it.
MrBrightSi said:
I used to run the williams with no silenecers and that was LOUD. It never got beans in crowded places at night, but was sometimes fun to scare people (Utterly childish and pathetic i know)
I cannot beleive you got a fine for this, surely if this kind of act is allowed to continue we'll be living in some sort of orwellian nightmare soon enough.
Have you considered that your nightmare might be someone else's dream? (referring to noise, not the Orwellian aspect).I cannot beleive you got a fine for this, surely if this kind of act is allowed to continue we'll be living in some sort of orwellian nightmare soon enough.
Proving this to the Mag's satisfaction should be easy. Take along a copy of the regs, and highlight the relevant parts. Take along the car specification - a photocopy of hte manual.
Imagine you were explaining it to your mum, highlight and copy out the relevant parts onto a fresh clean sheet of paper and take that along with the original docs.
State that you are pleading Not Guilty, and the basis of your defence is that the police carried out the wrong procedure.
Imagine you were explaining it to your mum, highlight and copy out the relevant parts onto a fresh clean sheet of paper and take that along with the original docs.
State that you are pleading Not Guilty, and the basis of your defence is that the police carried out the wrong procedure.
RtdRacer said:
Proving this to the Mag's satisfaction should be easy. Take along a copy of the regs, and highlight the relevant parts. Take along the car specification - a photocopy of hte manual.
Imagine you were explaining it to your mum, highlight and copy out the relevant parts onto a fresh clean sheet of paper and take that along with the original docs.
State that you are pleading Not Guilty, and the basis of your defence is that the police carried out the wrong procedure.
Do you get any opportunity to do this before appearance? I'm thinking to avoid a waste of the courts time?Imagine you were explaining it to your mum, highlight and copy out the relevant parts onto a fresh clean sheet of paper and take that along with the original docs.
State that you are pleading Not Guilty, and the basis of your defence is that the police carried out the wrong procedure.
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