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Huskygoat
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PostPosted: Tue Dec 22, 2009 4:27 pm Post subject: Noise Testing Reply with quote Back to top

Looking for a simple taco or rev meter . Does anybody know of something hand held cheap . Just read the moms and looks like its a little complicated but I would just like to know that my quad complies.

What do people use now??

Huskygoat. Unfortunately we are being forced to test by Government
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Huskygoat
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PostPosted: Sun Jan 03, 2010 9:30 am Post subject: Reply with quote Back to top

So nobody noise tests?

All MA events will have noise Testing This year.

I'm not in the club anymore but I have been told if I turn with a non conforming Muffler =no ride

So I would expect this would be the same around Australia?

I purchased a Quiet core from Luke Beechey for $40 so it not a big money outlay to comply.

Interesting to see what difference to the quad.

Huskygoat
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PostPosted: Sun Jan 03, 2010 12:18 pm Post subject: Reply with quote Back to top

Hey Husky,
The noise testing procedures look the same a last year and at 94dB.
Just remember if you use a type 2 meter to knock the 2dB off for the final reading.
You'll still be surpised how hard it is to get down to 94dB at 4500pm.
Most quiet core inerts on aftermarket (straight through) mufflers wll not get you there.
I've even seen the KTM505 standard race muffler measures over.
So even some std exhausts might be illegal for competition in Australia.

I don't know where to get them but a vibrating wire tacho would be the easiest.

I have heard the tolerance will be zero too.
Where did you read about the compulsory testing at all MA events?
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Mrs_Gaitar
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PostPosted: Sun Jan 03, 2010 12:57 pm Post subject: Reply with quote Back to top

We've had noise testing in WA for 3 years, drive by and followed up with static testing.
Last year the 94Db caused a whole pile of contraversy, and the noise tester came to a few events and then didnt return.

Quad Nats in Tassie also had a noise tester present.

Eventually MWA told the clubs here it would have a kit for sale to clubs, for testing at the local club runs, help clubs keep their noise down, and also the riders to ready themselves for State Champ events and Opens where if they went over, it could be very costly.

Try MNT and see if they have a tester and equipment for you and or the club to use for a weekend?
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Huskygoat
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PostPosted: Sun Jan 03, 2010 2:12 pm Post subject: Reply with quote Back to top

I can't tell you anymore as I'm not the club BUT I still want to ride and have fun doing it. I do agree with government its the morons that think that there Quad/bike is ok and tharsh though the bush near houses that wreck it.

Its MANT and Jordie is buying new equipment at the Moment. What does the equipment cost off MWA?

Its DMCC, every Bike /Quad will be tested at Scurt and every meet this because it affects funding and insurance.

Like I say how do you know until you get to the races wheather you comply? Long drive for nothing. THats Why I'm Buying the gear that will be used at the meets. Then proper operation.

Bullet whats a Type 2 meter?? I can take a photo of mine but its like Ten years old.

The Testing Will be in NT . So it would be Australia wide to be fair ah. THE DMCC have stated on there web site if you don't comply you don't ride.

Huskygoat
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PostPosted: Sun Jan 03, 2010 2:42 pm Post subject: Reply with quote Back to top

There are 2 recognised types of noise meters.
I borrowed a type 2 one from the local Council.
Because there is now a track noise level limit as well, any neighbour can shut a track down if the GCR level is exceeded.
You just need a Council inspecor to measure the venue asover the limit from any boundary.
MA won't help if you're over either... it's a GCR.
So even if the riders who don't comply dont get caught at scrutineering,
be assured they are the ones that are getting our tracks shut down.

Compliance is really really easy...
Just run your standard muffler, or one that sounds the same level.
SOme std muflers have a noise emmission level stamped on them too (most road bikes).
I have not seen a legal aftermarket quad muffler yet, there might be some by now, but just i haven't seen one.

There is no way we won't hear more about noise in 2010.
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Huskygoat
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PostPosted: Sun Jan 03, 2010 3:23 pm Post subject: Reply with quote Back to top

When clubs are forced to tell people they can't ride .. Lot of cranky people around.


What type is This?




Thats the Quiet core.

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PostPosted: Sun Jan 03, 2010 3:48 pm Post subject: noise meters Reply with quote Back to top

These are common on minesites etc, but like most electronic gizmos have to be recalibrated often and they must have a certification sticker or label affixed.
Check the Yellow pages for Occupational Health Companies and i think you can use Beaurea Veritas (not sure of the spelling) for hire of testing equipment. They are a huge company and Oz wide.
You could also try companies like Draeger, who do all the mine safety gear.
 
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Huskygoat
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PostPosted: Sun Jan 03, 2010 5:23 pm Post subject: Reply with quote Back to top

Don't take this the wrong way ...... everything is wrong in what I just did and I am not drunk or on drugs lol ....... I got A lot of work ahead of me I reckon.

Sports Hmf crack the throtle at 105 db .... have a go after I put the quiet core in ... I must have put in up side down. Talk about farting though a straw!!!!










































WTF eek eek


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bigo
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PostPosted: Sun Jan 03, 2010 6:15 pm Post subject: Reply with quote Back to top

guess that $40 was the worst purchase of the year Wink
 
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Huskygoat
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PostPosted: Sun Jan 03, 2010 7:16 pm Post subject: Reply with quote Back to top

Its definatly Quieter but I don't know where the revs are LOL
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dangerman4
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PostPosted: Sun Jan 03, 2010 7:30 pm Post subject: Reply with quote Back to top

I know u can get timing lights that have a built in tacho.
at least then the $ outlayed would be useful for other things
 
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Huskygoat
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PostPosted: Sun Jan 03, 2010 7:36 pm Post subject: Reply with quote Back to top

I found one a Repco today for $95 but he has to order it in. I think I'll wait to see the MA set ups. Kinda a up hill battle ... when not everybody is going to do it thats why I thought the quiet core may have been the answer. In the States Suzuki quads only fire every forth stoke to reduce sound .

clever ah
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doorslammer
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PostPosted: Sun Jan 03, 2010 9:08 pm Post subject: Reply with quote Back to top

Huskygoat wrote:
In the States Suzuki quads only fire every forth stoke to reduce sound .

clever ah


hmm 4th stroke huh... makes life hard Surprised i thought that kind of technology was reserved for wippersnippers and lawnmowers.
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PostPosted: Fri Jan 08, 2010 1:24 pm Post subject: Reply with quote Back to top

108.7 seems very high Husky
Those are the sort of numbers that most quads with atermarket straight throughs will peak at full load on the rev lmiter on the dyno.
And that would be extremely uncomfortable and almost painfully loud to stand behind and test without ear protection.

So, i'd say either your noise meter needs calibration or you are on a wrong setting or something???
My guess is that system with the reducer would come up with a rating higher than 96dB(A) and maybe around 98dB(A)
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Last edited by bullet on Sat Jan 09, 2010 11:15 am; edited 1 time in total
 
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yogie
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PostPosted: Fri Jan 08, 2010 4:44 pm Post subject: Reply with quote Back to top

this might sound silly Sad but cant the bike be taken to an exhaust centre and get then to do it ? and what is the legal limit at a race track ?
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Linc
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PostPosted: Fri Jan 08, 2010 5:59 pm Post subject: Reply with quote Back to top

The rules in the MA handbook are all over the place so for the record most Db Meters are type-2 and the rule is 96.99db at 4500rpm for 450cc MX comp's.

Set the meter to SLOW and the test should be done outside with nothing to bounce the sound off and the wind should be blowing the sound away from the meter.
 
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yogie
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PostPosted: Fri Jan 08, 2010 6:14 pm Post subject: Reply with quote Back to top

Linc wrote:
The rules in the MA handbook are all over the place so for the record most Db Meters are type-2 and the rule is 96.99db at 4500rpm for 450cc MX comp's.

Set the meter to SLOW and the test should be done outside with nothing to bounce the sound off and the wind should be blowing the sound away from the meter.


so how do they test a 700cc Vtwin (698 aprox) then ?, what guide lines would they have to follow Confused does twin pipes change the test procedure and would a raptor (single pot) be done the same or agin differently ?
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Dino
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PostPosted: Fri Jan 08, 2010 6:28 pm Post subject: Reply with quote Back to top

ummm, Where is the meter when the test is being done?
How far from the source?
And if possible what direction?
Like directly behind @ 5 metres sounds similar to regs for cars.
Likewise with cars, it should be thru the rev range.

It was only that I was looking at Huskygoats reading of 108.7 db.
Crickey!
Was that 6 inches from the exhaust pipe?
The decibals drop significantly as distance from the source increases......
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Linc
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PostPosted: Fri Jan 08, 2010 8:11 pm Post subject: Reply with quote Back to top

yogie wrote:
Linc wrote:
The rules in the MA handbook are all over the place so for the record most Db Meters are type-2 and the rule is 96.99db at 4500rpm for 450cc MX comp's.

Set the meter to SLOW and the test should be done outside with nothing to bounce the sound off and the wind should be blowing the sound away from the meter.


so how do they test a 700cc Vtwin (698 aprox) then ?, what guide lines would they have to follow Confused does twin pipes change the test procedure and would a raptor (single pot) be done the same or agin differently ?


Doesn't matter how many cylinders they have its how many exhaust outlets. If it has a twin exhaust they have to test each outlet.

Above 500cc it's 4000rpm (instead of 4500rpm); thats the only difference.
 
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Linc
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PostPosted: Fri Jan 08, 2010 8:14 pm Post subject: Reply with quote Back to top

Dino wrote:
ummm, Where is the meter when the test is being done?
How far from the source?
And if possible what direction?
Like directly behind @ 5 metres sounds similar to regs for cars.
Likewise with cars, it should be thru the rev range.

It was only that I was looking at Huskygoats reading of 108.7 db.
Crickey!
Was that 6 inches from the exhaust pipe?
The decibals drop significantly as distance from the source increases......


I wish!!!!.....it's half a meter not 5.
45deg angle and same height from the ground as the exhaust outlet.
 
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Dino
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PostPosted: Fri Jan 08, 2010 8:39 pm Post subject: Reply with quote Back to top

[quote

I wish!!!!.....it's half a meter not 5.
45deg angle and same height from the ground as the exhaust outlet.[/quote]

My personal opinion then, is that they should then stick a noise meter at an angle of 45 degrees up the mis-informed MA advisors personal exhaust/outlet until they are a distance of half a metre off the ground.

Dead set. Our country is full of legislation regarding machinery and noise. And this is way over the top. It exceeds, by about 10 000%, any industry minimum standards. Somebody (the emhasis on body ) stuffed up on this one.......

What ever the MA payed for this limp-wristed advise was too much. How does anyone win a contract to give that sort of advise? Duels with wet tissue paper?

What a crock........
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PostPosted: Sat Jan 09, 2010 11:03 am Post subject: Reply with quote Back to top

I'm pretty sure some industrial limits for machinery operation are as low as 83 or 85dB before operators have to wear ear protection.
So Industrial limits are way more strict than the GCR's.

The test procedure is on page 99 of the 2010 MOMS and it's pretty easy to follow.

Just about all quad racing has a 94dB limit for 4 strokes (speedway 98dB and a few other differences).

There are not many quads sold in the world that exceed 94dB fom the factory, so compliance is very easy.

Non-compliance means more tracks and ride locations will keep getting shut down, and at a faster rate.
And that's got nothing to do with the GCR's or MA...
That's just the average of what 22 million humans in Australia seem to want.
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