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| Re: DatNats 2013.. Whats your plans. |
Subject: Re: DatNats 2013.. Whats your plans.
by benny on 2013/1/16 0:57:22
I'm lead to believe that the local council have allocated only 7 or 8 weekends at PI with a unlimited noise limit. These weekends are are primarily allocated to the top tier events such as MotoGP, V8SC and state /national race meetings, all others are a case of tough luck. The DatNats track day will consist of 2 events, regularity and best lap time for class.
My coupe has a straight through exhaust with one hotdog and at a guess would easily be over 100db. I don't know the criteria at which testing will be conducted. Sampling at 200m would help in my case
I lifted the below from a WRX forum.
"Folks, the test is exact ... the noise meter microphone is located exactly 30 metres from the cente of the track, located on drivers left just past the start/finish gantry. Blindy Freddy would know that negotiating the straight on driver's left will exacerbate the reading because the driver has chosen to travel up to 5 metres closer to the noise meter - an alternative is surely to negotiate the straight on driver's right to position your vehicle a little farther away from the meter !!!.
It is also worth noting that there is a concrete pad located 30m from the centre of the track on the approach to Honda corner (T5) - about 100m from the corner which is where must people are on the brakes and rowing the car back thru the gears. It is not used a whole lot, but the pad is there ......
The rules are very clear and explicit. Your vehicle must not register greater than 75Bda when passing the noise meter. You are told where it is and if you are pinged, you are given one opportunity to correct the problem, failing which your vehcile will be excluded as the organisers face an initial $22,000 fine if the offending vehicle is permitted to continue and a formal EPA reading is taken which exceeds 75Dba. For a second offence the price rises "substantially".
It is the accountability of the entrant to ensure that their vehicle complies with the supp reg's, which reflect EPA noise requirements."
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