How loud can you legally have a car horn? - Subaru Enthusiast Forum - ScoobyNet.com
Subaru Discussion Forums

Go Back   Subaru Enthusiast Forum - ScoobyNet.com > Community > Non Scooby Related


Non Scooby Related Anything Non-Scooby related

How loud can you legally have a car horn?

Reply
 
 
 
Thread Tools Search this Thread
Old 11 December 2005, 04:46 PM   #1
scooby_si
Scooby Regular
 
Join Date: Nov 2001
Location: the middle bit
Posts: 8,238
Send a message via MSN to scooby_si
Default How loud can you legally have a car horn?

Just wondered having seen this video: where a guy has a ferry horn fitted what legalities would be of doing something or anything similar on a loud theme on car horns in UK?
Ta
Si
scooby_si is offline   Reply With Quote
Old 11 December 2005, 07:23 PM   #2
Franx2
Scooby Regular
 
Join Date: Nov 2005
Location: Known as 'Franx' before my password stopped working....
Posts: 127
Talking

Quality

I'm not sure about the legalities of having one that loud, but I understand that as long as the original horn is still in place and working, it's legal to have air horns and the like Handy that, since I have some which I'm just persuading to work at the moment. Made by Maserati, and with 3 notes. Someone gave them to me
Franx2 is offline   Reply With Quote
Old 11 December 2005, 11:22 PM   #3
paul-s
Scooby Regular
 
Join Date: Aug 2002
Location: Turboland
Posts: 5,082
Send a message via MSN to paul-s Send a message via Yahoo to paul-s
Default

that is so funny. Thinking of standing on the deck of cross channel ferries I can only imagine how loud it must be. Must be a beast of a size tho
paul-s is offline   Reply With Quote
Old 12 December 2005, 12:42 AM   #4
scooby_si
Scooby Regular
 
Join Date: Nov 2001
Location: the middle bit
Posts: 8,238
Send a message via MSN to scooby_si
Default

yeah i was thinking of leaving the normal horn there for standard uses but having a silly big one for special occasions pmsl
There must be some legal limit thou before it's classed as polution or assault or sum such BS surely?
Si
scooby_si is offline   Reply With Quote
Old 12 December 2005, 08:24 AM   #5
OllyK
Without a turbo or a roof
 
Join Date: Feb 2005
Location: Derbyshire
Posts: 12,304
Default

All I can find is that a car horn is usually 100-110 dB. No idea on max. Should be in the construction and use regs I'd think, I'll have a rummage.
OllyK is offline   Reply With Quote
Old 12 December 2005, 08:41 AM   #6
scooby_si
Scooby Regular
 
Join Date: Nov 2001
Location: the middle bit
Posts: 8,238
Send a message via MSN to scooby_si
Default

cheers, sure half the jap horns are more a timid noddy sounding 20 db
Si
scooby_si is offline   Reply With Quote
Old 12 December 2005, 09:04 AM   #7
OllyK
Without a turbo or a roof
 
Join Date: Feb 2005
Location: Derbyshire
Posts: 12,304
Default

Still can't find much, but there is some issue relating to the sound limit for an Alarm, which seems to fall in to the aforementioned range. My guess would be that due to many alarms making use of the car horn, this then limits the volume of the horn. However, if you were to have separate / additional horns, I have no idea what the arrangement would be.
OllyK is offline   Reply With Quote
Old 12 December 2005, 10:01 AM   #8
Brendan Hughes
Scooby Regular
 
Join Date: Oct 2000
Location: same time, different place
Posts: 11,302
Lightbulb

Quote:
Originally Posted by scooby_si
There must be some legal limit thou before it's classed as polution or assault or sum such BS surely?
Si
"Causing a danger to other road users" like perforating their eardrums...
Brendan Hughes is offline   Reply With Quote
Old 12 December 2005, 12:25 PM   #9
NotoriousREV
Scooby Regular
 
NotoriousREV's Avatar
 
Join Date: Jan 2002
Posts: 11,580
Default

Quote:
Originally Posted by Franx2
Quality

I'm not sure about the legalities of having one that loud, but I understand that as long as the original horn is still in place and working, it's legal to have air horns and the like Handy that, since I have some which I'm just persuading to work at the moment. Made by Maserati, and with 3 notes. Someone gave them to me
Are they the proper 60's ones that sound like a baboon having it's nuts grabbed?
NotoriousREV is offline   Reply With Quote
Old 12 December 2005, 12:37 PM   #10
Robbie T
Scooby Regular
iTrader: (8)
 
Join Date: Oct 2004
Location: Home
Posts: 1,316
Default

We often fit train horns to trucks at my work which are fookin loud, especially when you're walking throught the pitch black yard and one of the lads decides to give you a blast as you walk past (new pants needed)

I have one of the 20db horns fitted as standard to my subaru, its all very gay i try not to use it
Robbie T is offline   Reply With Quote
Old 12 December 2005, 12:45 PM   #11
Moley
Premium Sponsor
iTrader: (9)
 
Moley's Avatar
 
Join Date: May 2004
Posts: 10,695
Default

A friend of mine has got a train horn is is trying to fit to his car!!!!
Moley is offline   Reply With Quote
Old 12 December 2005, 12:50 PM   #12
Brendan Hughes
Scooby Regular
 
Join Date: Oct 2000
Location: same time, different place
Posts: 11,302
Default

Quote:
Originally Posted by Robbie T
We often fit train horns to trucks at my work
I'd heard of that being done as a one-off. Why do you say "often"? Sounds like a common and perhaps legal mod? Which suggests that either the original truck horns were crap (like scoobs), and/or that it's no big deal?

Need air compressors, don't they? So fitting one to a car would be a pig...
Brendan Hughes is offline   Reply With Quote
Old 12 December 2005, 12:57 PM   #13
CrisPDuk
Scooby Regular
 
CrisPDuk's Avatar
 
Join Date: Sep 2001
Location: The Cheshire end of the emasculated Cat & Fiddle
Posts: 9,436
Send a message via Yahoo to CrisPDuk Send a message via Skype™ to CrisPDuk
Cool

Quote:
Originally Posted by Brendan Hughes
I'd heard of that being done as a one-off. Why do you say "often"? Sounds like a common and perhaps legal mod? Which suggests that either the original truck horns were crap (like scoobs), and/or that it's no big deal?

Need air compressors, don't they? So fitting one to a car would be a pig...
Some guy's who we used to go rallying with had a pair of train horns on their VW LT35 service barge, They used to drain a fairly hefty air reservoir with a couple of good blasts

Running a compressor on a car is not that difficult, you can use a modified A/C compressor, the biggest PITA is siting a decent reservoir
CrisPDuk is offline   Reply With Quote
Old 12 December 2005, 01:00 PM   #14
CrisPDuk
Scooby Regular
 
CrisPDuk's Avatar
 
Join Date: Sep 2001
Location: The Cheshire end of the emasculated Cat & Fiddle
Posts: 9,436
Send a message via Yahoo to CrisPDuk Send a message via Skype™ to CrisPDuk
Default

PS On the same subject, does anyone know where I can get a proper 12V klaxon from?
CrisPDuk is offline   Reply With Quote
Old 12 December 2005, 01:11 PM   #15
Brendan Hughes
Scooby Regular
 
Join Date: Oct 2000
Location: same time, different place
Posts: 11,302
Default

Quote:
Originally Posted by CrisPDuk
Running a compressor on a car is not that difficult, you can use a modified A/C compressor, the biggest PITA is siting a decent reservoir
ooh cheers - this could come in useful on Portuguese roads
Brendan Hughes is offline   Reply With Quote
Old 12 December 2005, 01:41 PM   #16
Robbie T
Scooby Regular
iTrader: (8)
 
Join Date: Oct 2004
Location: Home
Posts: 1,316
Default

Quote:
Originally Posted by Brendan Hughes
I'd heard of that being done as a one-off. Why do you say "often"? Sounds like a common and perhaps legal mod? Which suggests that either the original truck horns were crap (like scoobs), and/or that it's no big deal?

Need air compressors, don't they? So fitting one to a car would be a pig...
We deal with a customer who has a fleet of lorries, he gets us to fit these to each of his units. Maybe i should have said occasionally
Robbie T is offline   Reply With Quote
Old 12 December 2005, 06:44 PM   #17
scooby_si
Scooby Regular
 
Join Date: Nov 2001
Location: the middle bit
Posts: 8,238
Send a message via MSN to scooby_si
Default

was guna say presuming i have plenty of space in a sizable car what do i need to do big *** train or similar horns properly?
Si
scooby_si is offline   Reply With Quote
Old 12 December 2005, 08:22 PM   #18
MJB2
Scooby Regular
 
Join Date: Nov 2004
Posts: 180
Default

SIAL BTW

They are train horns
http://www.hornblasters.com/products/category.php?id=1

And more vids here
http://www.hornblasters.com/vide.php
MJB2 is offline   Reply With Quote
Old 12 December 2005, 10:20 PM   #19
scooby_si
Scooby Regular
 
Join Date: Nov 2001
Location: the middle bit
Posts: 8,238
Send a message via MSN to scooby_si
Default

yeah but i wasn't doing it as a woohoo look wot vid i have i was doing it as an enquiry on legalities of doing it which was nicely demonstrated by the extreme nature of those vids Click the image to open in full size. lol
Si
scooby_si is offline   Reply With Quote
Old 12 December 2005, 11:32 PM   #20
Sigma Sam
BANNED
 
Join Date: Dec 2004
Location: Sigma Technical
Posts: 384
Default

Quote:
Originally Posted by scooby_si
Just wondered having seen this video: where a guy has a ferry horn fitted what legalities would be of doing something or anything similar on a loud theme on car horns in UK?
Ta
Si
Construction and Use Regulations, Part II, Section F, States under the guidelines for Audible Warning Instruments that the tone of a horn must be..."continuous, uniform and not strident"...typically ambiguous, although the dictionary clarifies "strident" as "harsh of tone, grating or jarring"
I guess that a ferry horn would be fairly "jarring" so they could have you under Construction and Use Regs!
Sigma Sam is offline   Reply With Quote
 
 
Reply


Similar Threads
Thread Thread Starter Forum Replies Last Post
Would a 9S ESL fit my Iqy7861 Engine Management and ECU Remapping 22 12 October 2015 09:21 AM
2004 black wrx Brett-wv14 Subaru 17 06 October 2015 09:03 PM
ESL mafless with IAT sensor Question? ossett2k2 Engine Management and ECU Remapping 15 23 September 2015 09:11 AM
Dump valve with FMIC question. ossett2k2 General Technical 9 13 September 2015 09:35 AM
Rear brake discs pitted? alcazar Other Marques 9 09 September 2015 05:42 PM


Tags
allowed, car, db, ferry, horn, horns, illegal, legal, legally, limit, loud, standard, subaru, train, vide

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Forum Jump



All times are GMT +1. The time now is 02:16 AM.