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john
Forum Moderator
Victoria
3130 Posts |
 Posted - 01 Dec 2008 : 11:22:32 AM
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If we can keep all machines below 75 dBa we can race at Sandown, Vic. Is that possible?
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John Daley Sidecar #68
' there are those who do, those who dont do and those who undo. We must lampoon the latter." |
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Ben
Honda CB350 Racers Promotion - Moderator
Victoria
288 Posts |
Posted - 01 Dec 2008 : 11:40:13 AM
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Hi John,
Would be interesting to see a log of the "average" db for machines, taken from Broady or PI maybe?
This would at least establish what the baseline is - eg. what level of noise a historic meet produces on average.
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Try Everything |
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GD66
Senior Member
Western Australia
390 Posts |
Posted - 01 Dec 2008 : 6:01:17 PM
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| Surely all those yummy F5000s wouldn't be under 75db, John ? And can we get hold of the noise meter readings from the Southern Classic, where apparently there were no recorded infractions ? |
Edited by - GD66 on 02 Dec 2008 07:36:42 AM |
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john
Forum Moderator
Victoria
3130 Posts |
Posted - 01 Dec 2008 : 8:17:21 PM
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What I dont understand is that motorcyclists always focus on every other issue expect the matter being discussed.
I asked about getting u8nder 75Db.
I did not ask people to bring up unrelated issues.
So can we get under 75db or not?
It seems that is about as quite as some of the new bikes and cars. |
John Daley Sidecar #68
' there are those who do, those who dont do and those who undo. We must lampoon the latter." |
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Ben
Honda CB350 Racers Promotion - Moderator
Victoria
288 Posts |
Posted - 01 Dec 2008 : 9:10:39 PM
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I doubt most of us (happy to be corrected!) would know what 75 db sounds like. A benchmark may be useful? If people knew what their machine was producing now, then they would have an idea of how far it needed to go?
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Try Everything |
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Alan
Forum Moderator
Western Australia
353 Posts |
Posted - 01 Dec 2008 : 9:42:49 PM
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Simple answer is NO and you should all know that by now but 75db is wishful thinking. The wind in the trees is more than that, modern bikes couldnt even get there let alone a historic single. On the same subject but as an aside check your rule book for next year and then wait for the screams when it is enforced and that wont be 75db.
Alan Sidecar 21 WA |
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john
Forum Moderator
Victoria
3130 Posts |
Posted - 01 Dec 2008 : 9:59:23 PM
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It seems no bikes went over the limit of 95dB at Broadford. I have been informed if any did they would have had a tap on the shoulder.
75dB is very quite, I hear about the same as any road bike. It seems if the locals dont complain it is ok and I guess if we took the chance with noise we would need to leave 2 strokes at home and have the noise machine there, WEither way the track costs $5500 to get so we would not need a single complaint about noise other wise we would all be sent home.
From my experience with riders there will be at least one who wants to prove a point. |
John Daley Sidecar #68
' there are those who do, those who dont do and those who undo. We must lampoon the latter." |
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Patrick
Level 3 Member
Victoria
314 Posts |
Posted - 01 Dec 2008 : 10:31:08 PM
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Practice for the Southern Classic popped up three machines that were in a bit over the limit.
Nicole and I went and had a very nice conversation with the people concerned and all was resolved thanks to the willingness of the entrant/owner/rider to comply with our requests.
No taps on the shoulder / no put your bike in the trailer and go home - just nice friendly conversations that should be the norm. at historic meetings....
Mandy's blue eyeshadow is a slight distraction however!! |
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Patrick
Level 3 Member
Victoria
314 Posts |
Posted - 01 Dec 2008 : 10:44:30 PM
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At Broadford we now can have a few extra days as long as we comply with very low levels like 75dbA - If you have a historic race bike then forget about trying to get to that level.
If you leave it on the trailer and look at it we would more than likley get a 76 reading on the noise machine[just from your heavy breathing]!! |
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john feakes
Advanced Member
Victoria
791 Posts |
Posted - 02 Dec 2008 : 08:19:34 AM
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Forget it John, Sandown is a dangerous place with too much armco. The cost is prohibitive
and such noise restrictions would be unobtainable unless everyone raced LE Velocettes.
It would make more sense to work towards Calder if and when it becomes available.
My two bob's worth on the subject.
Cheers, John |
125 RIDERS' ALLIANCE
A wise person simplifies the complicated, a fool complicates the simple. |
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peen0_0
Level 3 Member
Victoria
224 Posts |
Posted - 02 Dec 2008 : 12:54:34 PM
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Perhaps a niaive question from me? Why is 75dBa being considered? Normal ambient levels sit around 68 - 70, and even workplace requirements go up to 84.
Cheers, Tony. |
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john
Forum Moderator
Victoria
3130 Posts |
Posted - 02 Dec 2008 : 1:15:49 PM
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Not sure, tyat was the limit given to me over the phone. I am aware some of the car clubs run tarck days and do hover around 84 - 95 dB.
I guess it is a starting point.
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John Daley Sidecar #68
' there are those who do, those who dont do and those who undo. We must lampoon the latter." |
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trifield12
Level 1 Member
Victoria
13 Posts |
Posted - 02 Dec 2008 : 10:46:04 PM
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| noise would have to be consistant with road bikes i would think and i believe around pre 85 bikes are alowed a higher noise limit |
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john feakes
Advanced Member
Victoria
791 Posts |
Posted - 03 Dec 2008 : 08:49:00 AM
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Here we go again. It's only a year ago that we went through all this bull****, now it rears its ugly head again.
The E.P.A. allows noise limits of:-
For road bikes made prior to 1/3/85 100dB(A)
For road bikes made after 1/3/85 94dB(A)
For competition bikes 102dB(A)
These limits are by static test.
Unfortunately the E.P.A. delegates noise monitoring to local councils who can impose their own limits. M.A. has nothing to do with what these limits are and should only seek to enforce what the councils require.
Broadford operates a ride by noise level requirement which is probably pretty much line ball with the 102dB(A) static level.
Any requirement for lower emissions than those required at Broadford would create serious problems for competitors.
Please tell me that we are not going into this ****fight again in '09.
Cheers, (censored) John |
125 RIDERS' ALLIANCE
A wise person simplifies the complicated, a fool complicates the simple. |
Edited by - john feakes on 03 Dec 2008 1:18:10 PM |
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OldKwak
Level 2 Member
Victoria
156 Posts |
Posted - 03 Dec 2008 : 3:17:46 PM
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| In any case Sandown is a dead duck - safety and noise. Hartwell and Preston clubs have scheduled club days for Calder on 09 |
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