Wellington exhaust noise check 3rd September, Lower Hutt
Discussion
This has been aimed mainly at the Japanese crowd, but it is open to anyone. If you live in Wellington and want to know whether your exhaust will meet the new noise regulations, here's your chance:
"From Land Transport NZ:
We want to get a whole bunch of modified/non-modified performance cars together and put them through the new noise testing.
This won't be an official test in the sense that you won't get a certificate to prove the vehicle passes, but will be performed with the correct equipment, with the correct procedure and more importantly the correct readings and will allow you guys to find out if your car will pass or not.
ps. this will not only help you guys to figure out if your car is legal or not, but will give Land Transport a better understanding of what this new rule will do to the vehicles on the road.
The noise testing meet will be on the 3rd of September (a Sunday) from 11am onwards and will be at the Hutt River Bank car park. Its a nice big area and usually very quiet, so will be perfect to give an accurate test. MMC (mitsi car club) have offered to put on a BBQ as a bit of a side fundraiser so bring your gold coins"
I reckon these young Jappa ruffians won't get out of bed for 11am so it might pay to get in early.
Dan
"From Land Transport NZ:
We want to get a whole bunch of modified/non-modified performance cars together and put them through the new noise testing.
This won't be an official test in the sense that you won't get a certificate to prove the vehicle passes, but will be performed with the correct equipment, with the correct procedure and more importantly the correct readings and will allow you guys to find out if your car will pass or not.
ps. this will not only help you guys to figure out if your car is legal or not, but will give Land Transport a better understanding of what this new rule will do to the vehicles on the road.
The noise testing meet will be on the 3rd of September (a Sunday) from 11am onwards and will be at the Hutt River Bank car park. Its a nice big area and usually very quiet, so will be perfect to give an accurate test. MMC (mitsi car club) have offered to put on a BBQ as a bit of a side fundraiser so bring your gold coins"
I reckon these young Jappa ruffians won't get out of bed for 11am so it might pay to get in early.
Dan
It could have been phrased better.
The current legislation is derived from the drive-by noise test that has been around for more than 20 years so the outcome for most standard cars will be well known to Land Transport. Most people with modified cars don't know if they will pass or not so this is a chance to find out.
There is a second phase being worked on that may introduce the test to the WoF next year. As you say, Land Transport should know all they can before it is implemented, this is part of the information gathering. The guys involved are into the Jap scene so they enjoy doing this sort of stuff - they also run a stand at the Autosalon shows, explaining how to modify legally.
Dan
The current legislation is derived from the drive-by noise test that has been around for more than 20 years so the outcome for most standard cars will be well known to Land Transport. Most people with modified cars don't know if they will pass or not so this is a chance to find out.
There is a second phase being worked on that may introduce the test to the WoF next year. As you say, Land Transport should know all they can before it is implemented, this is part of the information gathering. The guys involved are into the Jap scene so they enjoy doing this sort of stuff - they also run a stand at the Autosalon shows, explaining how to modify legally.
Dan
Re the test The rule has been "constructed" by the LVVTA and issued changed and generally faffed about with several times. It is based on the the EU, Aussies and US standards....sort of. There are 9 sound meters in NZ currently and are allocated to LVVTA certifiers by a process only known to the head honcho and the management committee. Black magic and phases of the moon I believe. 2 in Hamilton and 2 in Auckland and none in Wellington. The Wellington LVVTA certifiers can book and use the one unit that is avaliable to move from place to place. Sigh.
27 more meters are being ordered so based on past experience there will be 10 in Blenheimm and still only a floating one in Welly wood. As an aside a number of the LVVTA certifiers have no digital camera (so a sketch is required of the system), computer or fax. Best to chip the message in a stone tablet I believe.
And I'm predicting based on past experience the noise test will be found to be so flawed as to be useless. (Hint ask to be tested in a drive with a nice thick hedge on two sides as it's not a drive by test) Still at $180 a shot it's all a good a money go round. And no the price is not negotiable.
Remember the key LVVTA manual phrase repeated so many times "Must be of a workmanlike standard". Excuse me while throw up.
Cheers
Mark Stacey
27 more meters are being ordered so based on past experience there will be 10 in Blenheimm and still only a floating one in Welly wood. As an aside a number of the LVVTA certifiers have no digital camera (so a sketch is required of the system), computer or fax. Best to chip the message in a stone tablet I believe.
And I'm predicting based on past experience the noise test will be found to be so flawed as to be useless. (Hint ask to be tested in a drive with a nice thick hedge on two sides as it's not a drive by test) Still at $180 a shot it's all a good a money go round. And no the price is not negotiable.
Remember the key LVVTA manual phrase repeated so many times "Must be of a workmanlike standard". Excuse me while throw up.
Cheers
Mark Stacey
Mark
The LVVTA website and press releases have all the information.
10 meters total, 9 are situated around the country, 1 is a roaming unit for the remaining 18 certifiers - they also have budget meters (not as accurate) to be able to give customers an idea of whether they would pass or not before they book up the full monty test. Price is between $128 and $196, depending on how long it takes to do the inspection and test - an XTR2 will take longer to get on the 4 poster hoist than a standard car for instance, but with removable bodywork it may be easier to hook up the external tachometer.
The test requires clear space around the microphone so no hedges will interfere (though a hedge wouldn't make much difference to the readings anyway).
Wellington does have a meter - Andy Ward has it (my MGB with single muffler failed dismally). The locations for the meters were decided on population density, number of exhaust noise offences already recorded by police and geographical spread.
So there are 2 in Auckland as it is quite a big place with a lot of people, so I am told. Hamilton has 2 trained certifiers but no permanent meter.
Dan
(ex-Ford exhaust noise engineer so a geek on this topic)
The LVVTA website and press releases have all the information.
10 meters total, 9 are situated around the country, 1 is a roaming unit for the remaining 18 certifiers - they also have budget meters (not as accurate) to be able to give customers an idea of whether they would pass or not before they book up the full monty test. Price is between $128 and $196, depending on how long it takes to do the inspection and test - an XTR2 will take longer to get on the 4 poster hoist than a standard car for instance, but with removable bodywork it may be easier to hook up the external tachometer.
The test requires clear space around the microphone so no hedges will interfere (though a hedge wouldn't make much difference to the readings anyway).
Wellington does have a meter - Andy Ward has it (my MGB with single muffler failed dismally). The locations for the meters were decided on population density, number of exhaust noise offences already recorded by police and geographical spread.
So there are 2 in Auckland as it is quite a big place with a lot of people, so I am told. Hamilton has 2 trained certifiers but no permanent meter.
Dan
(ex-Ford exhaust noise engineer so a geek on this topic)
www.lvvta.org.nz/ONT-authorised%20LVV%20Certifiers.pdf This List??
My appologies for trying to make some sense of it with it's 13 LVVTA certifiers with meters the remainder sharing. The revised information I was given was obviously wrong but then so is the LVVTA's which is where you are directed by LTSA. Dunedin has 2? or just sharing? and Hamilton is definitely zero? just the on call meter? Felding is a hot spot for noisy boy racers?
On a more serious note.
Any idea just how much of a difference a hedge 3 meters away from the vehicle on both sides will make? Holden 202 6 to 2 to 1 headers 2 inch pipe with one Coby straight through. I'm interested in having everything my way for sure. Mind you I've only ever been stopped by the law so they could find out what the car was.
www.lvvta.org.nz/Noise%20Emissions%20Std030706.pdf
Cheers
Mark Stacey
My appologies for trying to make some sense of it with it's 13 LVVTA certifiers with meters the remainder sharing. The revised information I was given was obviously wrong but then so is the LVVTA's which is where you are directed by LTSA. Dunedin has 2? or just sharing? and Hamilton is definitely zero? just the on call meter? Felding is a hot spot for noisy boy racers?
On a more serious note.
Any idea just how much of a difference a hedge 3 meters away from the vehicle on both sides will make? Holden 202 6 to 2 to 1 headers 2 inch pipe with one Coby straight through. I'm interested in having everything my way for sure. Mind you I've only ever been stopped by the law so they could find out what the car was.
www.lvvta.org.nz/Noise%20Emissions%20Std030706.pdf
Cheers
Mark Stacey
marksteamnz said:
Any idea just how much of a difference a hedge 3 meters away from the vehicle on both sides will make?
An Anechoic chamber would make a huge difference. Hedge, not so sure.
As I'm sure you know, the last thing you want is to be within miles of a solid block wall . . . like next to the scrutineering building at Puke where one of the Porsche Club gumboots insists on doing some measurements
Aah, the list on the LVVTA website is slightly different from the one I got.
As there are only 10 meters I think some of them are shared between certifiers, as with the 2 Hamilton and 2 Dunedin guys.
As for hedges, any effect would be small as 3m is 6 times the measuring distance - within variation of tests I would expect and they could just as likely increase the reading.
Dan
As there are only 10 meters I think some of them are shared between certifiers, as with the 2 Hamilton and 2 Dunedin guys.
As for hedges, any effect would be small as 3m is 6 times the measuring distance - within variation of tests I would expect and they could just as likely increase the reading.
Dan
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