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"Noisy" exhausts

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carbore:
Hi,

I have seen various things in the press this week about clamp downs on boy racers including "Noisy Exhausts" often threats of "crushed cars" are banded around. Whilst im not condoning antisocial and dangerous "Chav" driving I think the noise issue is a bit vague.

For example if I drove my Elise (which is race setup) home form an event and happened to drive through "Operation Chav Hunt" there is a chance it could be deemed Noisy, as Im sure will many of our off-road vehicles, especially anything comp tuned.

Now as far as I know there is no specific noise level that a car has to hit, I have never been noise tested in an MOT so surely the legality of impounding a noisy car is questionable when you can not specify in measuarable terms what noisy is?.

I am fairly confident that a "popper copper" would take an objective view and let an insured, taxed, sensibly driven car go on its way, but we live in a time when things like this get outsourced to target based revenue earning bureaucrats and their minions, so I think it bears consideration.

Like it or not, should noise test level be specificed and part of MOTs? , its easy to test as I get noise tested every race meet I do.

What do you think?

Yoshi:
I think this is more aimed at those who have the specific exhaust systems that make them noisy as opposed to those whose vehicles are standard (am including tuning as a standard thing as you dont replace the parts to specifically make it noisy).

V8MoneyPit:

--- Quote from: "carbore" ---For example if I drove my Elise (which is race setup) home form an event and happened to drive through "Operation Chav Hunt" there is a chance it could be deemed Noisy, as Im sure will many of our off-road vehicles, especially anything comp tuned.

--- End quote ---


In your case, it is hard to believe your car would be deemed 'noisy'. The regulations for race cars are quite strict at most circuits as you will be aware. In my day, we were allowed 120db at 0.5m/45 degrees from the tailpipe. I would start the season with a fresh silencer and by the last event it would be running at 118db! I know it is far less these days.

The other thing is that you will be driving your Elise sensibly on the road, not revving the wotsits off it, so the noise shouldn't be an issue.

In the matter of whether we *should* have defined noise limits.... well, my old V8 would probably fail straight away! As would the old race car (if it ever sees the light of day again!). But I never drove around in the early hours trying to leave the longest black lines along the High Street. That is where the problem is. Not specifically in the noise emitted from the car.

Evilgoat:
I think theres a difference between the sort of system you have, and the dustbins found on many corsa, clios and saxos.

I'm guessing yours is like mine. Only gets loud when you are giving it beans or are in the 'power band' of then engine.

Rather than the godawful noise a 1.0 Nova makes with a 4" bore exhaust running like a bag of spanners because of the loss of backpressure.

burgerman:
Rather than the godawful noise a 1.0 Nova makes with a 4" bore exhaust running like a bag of spanners because of the loss of backpressure.[/quote]    

    Fantastic :D   Where do i get one for mine ??  :lol:  :lol:

  Your quite right tough, My V8  Disco trundles along quite discreetly until i can afford to press the go pedal  :twisted: then it "comes alive"

 
I personally have no issues with a specific noise level/test , at random or mot, as long as its sensible, Lets face it most modern Sports saloon cars have a "fruity " note to them

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