dbA Level For Cans?

What is the legal limit?

Is there one?

Nige

 

You sure? I thought it was 85dbA in the UK?

 

My new wheelie bin is marked CE and 99dB

http://www.motuk.co.uk/mcmanual_710.htm
"1.
a. Any part of the exhaust system missing or excessively deteriorated

b. A leak in an exhaust system which causes excessive noise to be emitted

c. An exhaust system mounting missing or one which is in such a
condition that it does not fully support the exhaust system.

2. A silencer which is in such a condition or is of such a type that the
noise emitted is clearly in excess of that which would be produced by a
similar machine fitted with a standard silencer in average condition.


3. A silencer marked 'NOT FOR ROAD USE', TRACK USE ONLY' or similar words."

 

My CBR's exhaust[1] was static noise tested at Rockingham on Sunday, at
97db. I was gutted, for what that exhaust system cost new I expected it
to be much higher.

[1] Full Akrapovic system



--
Lozzo the velologist
Suzuki SV650S K5
Honda CBR600 FW trackbike
Yamaha SR250 Spazz-Trakka
Suzuki GSXR750 L
Suzuki TS50X
Suzuki TS50X

 

Not if it's the ACU method.
http://www.acu.org.uk/uploaded/documents/Road Race Section 11.pdf

Eiron.

 

No, 7500 rpm

I once had a bike[1] fail a static noise test at a police bike show. it
was over 100db at the 1200rpm tickover. My Firestorm was even louder.

[1] GSX750EFE with full Harris F1 system.

--
Lozzo the velologist
Suzuki SV650S K5
Honda CBR600 FW trackbike
Yamaha SR250 Spazz-Trakka
Suzuki GSXR750 L
Suzuki TS50X
Suzuki TS50X

 

It's a Motorsport Vision circuit, they'll test for noise, they always
do.

--
Lozzo the velologist
Suzuki SV650S K5
Honda CBR600 FW trackbike
Yamaha SR250 Spazz-Trakka
Suzuki GSXR750 L
Suzuki TS50X
Suzuki TS50X

 

Ah right.

IIRC, over here, you can fit whatever you like as long at it's
homolgated. Well, that's the official line.

 

Indeed. Dobles failed my CB500 on the Predator stainless steel exhaust
that had passed for the previous 5 years (and they had passed the
previous year), and insisted that there was no wadding inside it
(riveted can, never opened)! They also failed it on the fork seals
(which they replaced themselves 4 months previously).

Utter bastards. I've never been back.

 

105db for MSV circuits on trackdays, such as Cadwell Park. ACU
noise testing testing procedure [1], carried out before any bike is
allowed on track.

For those that know my CR500 supermoto, they just laughed and shook
their heads before I was 10metres aways from the test zone.

flook

[1] PDF of this part of the manual available on the ACU website.

 

It depends on how long the string between them is.

 

Do what I did to my Scorpion can and remove the marking with a Dremel.

 

It's the same here for new stuff. As long as it's got an 'E' mark,
it's road legal.

 

I just stick insulating tape over the offending words for the MOT. The
tester isn't allowed to remove the tape to see what's underneath. It's
pointless anyway, because even with the Akrapovic can that is marked
'not for road use', it still tests at lower than the legal limit when
I've had it done for trackdays.

--
Lozzo the velologist
Suzuki SV650S K5
Honda CBR600 FW trackbike
Yamaha SR250 Spazz-Trakka
Suzuki GSXR750 L
Suzuki TS50X
Suzuki TS50X

 

AOL - only aluminium tape.


--
Krusty
www.MuddyStuff.co.uk
Off-Road Classifieds

'02 MV Senna '03 Tiger 955i '96 Tiger '79 Fantic Hiro 250

 

Your MOT man does it arse about face. According to the MOT Tester's
Manual he's obliged to fail it if he can see anything that shows it as
a race can i.e 'not for road use' or 'race use only' marked on the can,
regardless of whether it is quiet or noisy - hence I cover the
offending words with insulating tape.

My '98 CBR600 with a full Akrapovic race system is quieter than a
standard brand new Gixer 600 K8, but would fail the MOT without that
little bit of tape.

--
Lozzo the velologist
Suzuki SV650S K5
Honda CBR600 FW trackbike
Yamaha SR250 Spazz-Trakka
Suzuki GSXR750 L
Suzuki TS50X
Suzuki TS50X

 

Well atm there is no MOT[1] for bikes, so unless bikes are stopped by
plod, most people get away with it.

[1] It's in the pipeline, apparently. **** knows why, as I've yet to
see a really SOB in France. Most people tend to look after them.

 

In communiqué <>, Cab

You haven't seen my faux WR250. It's all OK mechanically, but I dare say
it will fail on a whole list of stuff - particularly in the lights
department, though at least it's got a tiny headlamp that works.

--
+----------------------------------------------------------------+
| Pete Fisher at Home: |
| Voxan Roadster Gilera Nordwest * 2 Yamaha WR250Z |
| Gilera GFR * 2 Moto Morini 2C/375 Morini 350 "Forgotten Error" |
+----------------------------------------------------------------+

 

Heh, that's why I said "most people"