Noise Emissions

[GD66]

 Freakworthy, I forgot to add, the " Just-in-case" mufflers are like taking crash repair parts or spare tubes to a meeting. If you drag them all over the joint "just-in-case" you need 'em, you never, ever do. But, in a dramatic affirmation of the chilling accuracy of Murphy's Law, just try leaving them at home once, and you'll spot a noise meter as you're unloading the trailer....

[Freakshow]

Still say you must be able to right in the supp regs an increase for historic championships ?

[rosmar]

Still say you must be able to right in the supp regs an increase for historic championships ?

Unfortunately this is not the case. Supplementary regulations cannot override the rules shown in the rule book.
The whole VMX community needs to lobby their clubs, State controlling bodies, Historic MX Commissioners and MA in regard to noise, and for VMX to be allowed to remain at 102dba as in 2007.
The current noise limit for VMX for 2008 is 96dba. Read the 2008 MA rules which are up on their website.

[Freakshow]

wELL IF FAT BOY GETS IT IN STONE FOR THE naTS AT 102DB  THEN THATS THE STANDARD THAT WILL BE USED FOR THE RULING IN 08, wE NEED THAT AS THE PRECEDENT TO BE LOCKED IN , GOING FORWARD.   WE NEED TO KEEP REINFORCING 102 IS ok ANYTHING LESS IS GOPING TO KILL THE PATINA AND THE SPORT OFF.

[rosmar]

wELL IF FAT BOY GETS IT IN STONE FOR THE naTS AT 102DB  THEN THATS THE STANDARD THAT WILL BE USED FOR THE RULING IN 08, wE NEED THAT AS THE PRECEDENT TO BE LOCKED IN , GOING FORWARD.   WE NEED TO KEEP REINFORCING 102 IS ok ANYTHING LESS IS GOPING TO KILL THE PATINA AND THE SPORT OFF.

You don't seem to understand.
The current (2008) noise limit for VMX is 96dba. This will not be changed unless we all start intensive lobbying with MA and the State Bodies.
This current limit could affect the future of our sport.

[lyle2212]

My 1982 bj42 landcruiser with a 6cyl diesel motor was noise tested prior to rego last year,and came in at 94 db.And as the engineer said before I had the exhaust fiitted "you,re  allowed 96db because of the age so don,t make it to quiet". The testing device is held at 500mm from the tail pipe at a 45 degree angle. The thing is that vmx bikes especially Enduro,s that were once registered for road use, all had acceptable noise levels back then. By making up new rules and regulations to comply with current noise levels, is like moving the goal posts halfway through the match. You would think that the Age of the bike would be taken into account here!

[Tim754]

What say we start a thread that reads something. "A petition to MA in urgency to review noise limits in regards to Vintage Motocross , The current regulations from 1/1/2008 do not take into account that these machines were not designed to meet  in anyway the 96db limits, and will lead to the loss therefore of classic machines ,competitors and the viewing public of this warmly received branch of Historic racing." ? Tim 754
Now I just printed that out ,signed it and tomorrow I am posting it to MA. Tim

[oldfart]

Todays  scenario....   Took the Drm ( DR 400 4 stroke ) in to get a new system put on and asked for it not to make any more than 96 db ....your FN kidding me ain't you, How the hell they gunna police that , and I sure as hell won't guarantee it will below that  reading  
OK just build me a pipe and allow for a muffler that has a removable end section that can be packed or reconfigured baffle  
He turns around and pulls a muffler off the shelf ... something like this ( about 500 long and 80mm round Na ....something smaller  300 x 80 yep that one .... $500 -      off a KTM
At this stage he is allowing enough room for the muffler and we will sort it out latter  

Question ----- where does one get a test done in Qld and certified to meet the ASA  # which will be stamped on the completed pipe ??

[rosmar]

What say we start a thread that reads something. "A petition to MA in urgency to review noise limits in regards to Vintage Motocross , The current regulations from 1/1/2008 do not take into account that these machines were not designed to meet  in anyway the 96db limits, and will lead to the loss therefore of classic machines ,competitors and the viewing public of this warmly received branch of Historic racing." ? Tim 754
Now I just printed that out ,signed it and tomorrow I am posting it to MA. Tim

Tim,
This is a great idea. I hope all other VMX people take note and follow your lead.

[YSS]

Hi Ross , would it be possible to bring one of your tester units to CD 5 and people can get their bikes voluntarily tested to see if they are OK ? That would take allot of fear and anxiety away. Because I believe most bikes are under the limit from standard. And perhaps also show people a way to fix the problem.

[Phil]

Great idea.

[211kawasaki]

Just letting you guys know that the Commission is lodging a protest to MA on the 96db situation (or so I'm told) can I suggest that the arguments for 102dba and the reasons factually why an air cooled 2 smoker and vintage 4 stroker should see this consideration could well be discussed in this forum. 

Also why its considerably easier to be compliant with say the modern water cooled 2 stroke in comparison.

Perhaps the rationale why 102db is still Kosher in Historic RR is another point why VMX/CDT should be considered in the same light.

Come on institute membership give us your best advice

[GD66]

 And it's up to all us club members to chase this up when General Business comes up at this month's club meeting. Terrifying as it is, it's up to us as MA licence holders to look after our future through club and conference conduits, so don't be a passenger, make it a topic of priority at your club meeting this and next month, and let's keep it in the forefront, otherwise we will be deprived of one of the raisons d'etre of vintage mx,for no good reason. After all, have any of you ever been to the F1 Grand Prix ? It is obscenely loud, yet is exempt from noise limits by Government bylaws. So, it's not impossible, but we must remain alert, and stay hand-in-glove with our roadracing buddies. 

[Freakshow]

Still say you must be able to right in the supp regs an increase for historic championships ?

Unfortunately this is not the case. Supplementary regulations cannot override the rules shown in the rule book.
The whole VMX community needs to lobby their clubs, State controlling bodies, Historic MX Commissioners and MA in regard to noise, and for VMX to be allowed to remain at 102dba as in 2007.
The current noise limit for VMX for 2008 is 96dba. Read the 2008 MA rules which are up on their website.

I cant find any 2008 reg online with MA where are you looking ? please add a link here.

2007 MOMS says no class to be over 102Db unless a lower limit is specified in that diciplines chapter then refers to 08 going to a generic 96db that indicates to me there are exceptions noted, and as we know there are already exception to that AKA historic RR, whats the Differance to Historic DT or HIstoric MX, i would be arguing very strongly that unless the Chapter specifically states 96 for historic you should be able to compete under the historic guidlines, i have it on good Authority TAs MA is Subbmitting Regs AT 102DB, as a historic class, if that is over ridden your going to get less riders risking a trip like that on the chance they can make the DB's.  HAving your bike pretested will only give you a range of where your at today, next week at another track you can be 2db out and fail.    102 is the line in the sand and is akin to the 10FT rule.  The other option is to bring in Log books ? Units are DB tested and recorded excepted for the season, also would give you rulings on  Class eligibility/ 

[rosmar]

Freaky,
You are totally missing the point.
1. The 2008 MA rules are available at www.ma.org.au
2. The current 2008 noise (sound) limit for Classic Motocross is 96dba. You can argue all you like that 102 should apply but you are wrong
3. Tasmania cannot put 102dba in their supp regs as this would be against the MA Rules and would not be approved.
4. We all need to work hard to have this limit increased to 102dba, and we need to do this now.