Car noise db limit.

[VeiRoN]

Cheers,what's the maximum limit of db a car can make to be road legal in Uk?

Sorry to make a thread just for this but i didn't find this anywhere.

Thanks in advance.

[L33h]

95db iirc

[L33h]

Actually ive just found out thats for lorries. im not sure for cars ill see if i can find it

- dont think there is a limit

[AlexB]

something 95-98ish i think

[Ross]

82db is the road legal limit.

[blackie_2k5]

youd have to have proper fart cannon to get pulled over here for it though lol

[Prickle]

Checked my mot and little paper thing to see if it actually tells you but mine doesnt... :/

[VeiRoN]

I got no sillencers apart from the backbox wich is a SS Magnum,but i would like to replace it with a 50 mm race pipe from Kam Racing so i was wondering if the noise could be a problem,in this case i think it's needed atleast the mid silencer.

[Ross]

Checked my mot and little paper thing to see if it actually tells you but mine doesnt... :/

It's 82dB.

http://www.legislation.gov.uk/uksi/1986/1078/regulation/55/made

Saxo's fall under 1.(c).

[VeiRoN]

82db is the road legal limit.

Ok,but that limit is calculated when the car is steady or at a certain number of rpm?

[wicked-vtr]

It's down to the policeman/mot tester to decide if its overly loud, not set in stone iirc. Can imagine lambos are over 98db

[blackie_2k5]

basically they cant do you

if they want to..they have to take you to a proper testing centre..roadside tests can be influenced by other things..mainly traffic and echoes from walls near by

if you ever get a ticket by the road side..ask to take it to court..itll get dropped

[Ryan]

Reminds me of the time I had to give it some beans to get up a hill....

Car behind got pulled by the police right away. I think they thought they were the noisy one haha.

[Jazz]

My cousin's Supercharged 350Z was recorded as 129DB when he was at the 'ring last month, he uses it on the road here, never been pulled up on it.

Even on idle it makes my ears bleed. Engine note is lovely though.

[blackie_2k5]

My cousin's Supercharged 350Z was recorded as 129DB when he was at the 'ring last month, he uses it on the road here, never been pulled up on it.

Even on idle it makes my ears bleed.

my old green vtr used to be bad..it sounded mint..but was one of the loudest cars ive ever heard


used to vibrate the letter box on idle :homme:

would hate it now..but when i was 19 it was the nuts lol :zainy:

[Jazz]

my old green vtr used to be bad..it sounded mint..but was one of the loudest cars ive ever heard


used to vibrate the letter box on idle :homme:

would hate it now..but when i was 19 it was the nuts lol :zainy:

Yeah when you're young it's all fun. My old GTO was also very loud, sitting at 70 on the motorway was like standing in a club right next to the sound system. Headaches after a commute were guarranteed.

[blackie_2k5]

i still love the sound of it now tbf..was unique sound for a saxo...was just daft loud
cammed vtr with a 4-2-1 (pretty sure miltek so smaller bore) old style supersprint 1 piece race tube) and piper 4" jap can

rallye inlet and green filter

was loud but sounded nice lol

(just far too loud) never seen another saxo that sounded the same as with that combination..tried most of the original stuff on a 98bhp and it sounded horrible lol

[wicked-vtr]

I'm thinking about running straight pipes on my rb25 when it goes in, no cats, no silencers, nothing. Videos of them on YouTube sound awesome

[blackie_2k5]

I'm thinking about running straight pipes on my rb25 when it goes in, no cats, no silencers, nothing. Videos of them on YouTube sound awesome

from what i got with my old exhaust on the vtt..and the current..i want my new one to be a straight pipe

already designed it..from the downpipe it should only have 1 45 ish degree bend and help the flow massivley (ditch centre box and back box)

its gonna be loud..but i only used it for weekend fun..so think i can deal with it lol :homme:

[greyjasper51]

Blackie you on here 24/7??

Id like loud but essex police are getting silly with their new toy atm...

[Prickle]

Blackie you on here 24/7??

:zainy:

[blackie_2k5]

Blackie you on here 24/7??

Id like loud but essex police are getting silly with their new toy atm...

im logged in all the time..but in reality no mate :homme:

same with FB...ppl inbox me at stupid times of the night

jongee is good for that :fcuk:

i just flit in and out


(mostly due to waiting for my customers at work..soon as i get bored..phone out :p )

[VeiRoN]

Blackie you on here 24/7??

Id like loud but essex police are getting silly with their new toy atm...

Should be the police interceptors in Essex,saw it in a documentary. :panic:

[davidharvey]

I remember years ago getting stopped by police in a rally car cos they reckoned my exhaust was too noisy, pulled out the form from rally scrutineering a few days before with nosie report on it and asked if they had a meter that could prove it wrong. they skulked off into the night.


This is interesting, hope your tyres are quiet...Noise limits on tyres

There are noise limits on tyres and from November 2012 all new tyres will be graded and labelled to show how noisy they are.https://www.gov.uk/noise-pollution-road-train-plane/vehicle-noise-limits

[wicked-vtr]

What does it mean in that link when it says "type approved" exhaust?