The MSNZ noise regulations have been around for a long time but in all the years I have been racing I had never come across it actually being monitored until Pukekohe in recent times. For that reason I suppose it has never an issue until now and people are therefore starting to focus for the first time on what the MSNZ regulations actually say.
As a committee member of a club that puts on meetings, the noise monitoring at Pukekohe has become an issue. I think it is having an effect on entries as some people don't want to take the risk of paying their entry fee and then finding they are sent home after one race. They say the monitoring results are variable and they could be OK one weekend and not OK the next.
Also, from an organisers perspective, there is extra hassle in dealing with the noise monitoring process - especially when we end up having to deal with complaints. It is hard enough to put on viable meetings without the extra issues related to noise to deal with.
I was thinking about the matter of boundary noise being the real issue. At Pukekohe the monitoring is done from inside of the track not at the boundary. My car has an exhaust exit on the left hand side and has no muffler - when passing the noise monitoring station the exhaust points towards to boundary of the circuit and the car body shields the noise from the monitoring station. I am sure any noise reading for my car would be much higher if taken at the boundary (where the real issue is). It all seems a bit dumb.
Originally Posted by rogered
Just thinking after reading all this.
A. I thought this noise ruling had been around for a long time, may be 20 years(ish).
B. Why is it suddenly, and currently an issue?
C. How many cars actually have an issue with it?
D. if, say, 5 cars at a meeting, with say 200 entries, are deemed to loud, them I guess they need a muffler. the other 98% need not worry.
oh and dont get me wrong i think that anything (rotarys excluded) should run a straight pipe
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