Re: Time for a rotary in the mix
Thanks Chuck! Looks like noise levels are at the discretion of the organizers at this stage. Here is the excerpt from the rule book.
1.10 VEHICLE NOISE
.1 The organizers of an event may establish a maximum vehicle noise level
either by class or for all vehicles. Measurement can be at different locations
around the facility being used. Competitors are warned that track licenses
increasingly specify noise limits and it is the competitorʼs responsibility to
ensure their vehicle complies with the maximum vehicle noise level
established for each event in which they compete. There are no protests or
appeals allowed on organizer decisions regarding maximum vehicle noise
levels, measurement or action taken by the organizers.
Sample specified maximum vehicle noise levels:
98db for ʻModifiedʼ cars
95db all other cars at Shannonville Motorsport Park, Toronto Motorsport Park
92db for all cars at Mosport Driversʼ Development Track
.2 The Clerk of the Course at a Regional Championship Event will prohibit any
vehicle from running which twice exceeded the noise level on the course or in
a test session, as measured by a CASC-OR approved Noise Meter. At any
non-championship event the Organizer or Clerk may prohibit any vehicle from
running which the organizer deems to violate the maximum vehicle noise level.
I remember back in 2006-2007 there was a run on Cherry Bombs at Canadian Tire when CMP opened. Their noise restrictions are enforced however, they are a bit more forgiving than the sample provided in the rule book.
CMP Rules
1.Screening Test - After a brief visual muffler check, a stationary test is undertaken. Sound levels will be measured 15 feet in front and behind the vehicle while the engine is revved at the maximum allowable rpm or the red line of the tachometer.
◦Cars, the average should be no more than 100 dbA with no single reading over 104 dbA.
◦Motorcycles, the average should be no more than 98 dbA with no single reading over 100 dbA.
2.Pass-by Test - With the vehicle under full acceleration on the track, a reading will be taken from 50 feet. The maximum level allowed is 92 dbA. This level and standard is the most commonly used in North America and Europe and is where the entire industry is headed. Tests are valid for 9 months unless modifications to vehicle are made.
Thanks Chuck! Looks like noise levels are at the discretion of the organizers at this stage. Here is the excerpt from the rule book.
1.10 VEHICLE NOISE
.1 The organizers of an event may establish a maximum vehicle noise level
either by class or for all vehicles. Measurement can be at different locations
around the facility being used. Competitors are warned that track licenses
increasingly specify noise limits and it is the competitorʼs responsibility to
ensure their vehicle complies with the maximum vehicle noise level
established for each event in which they compete. There are no protests or
appeals allowed on organizer decisions regarding maximum vehicle noise
levels, measurement or action taken by the organizers.
Sample specified maximum vehicle noise levels:
98db for ʻModifiedʼ cars
95db all other cars at Shannonville Motorsport Park, Toronto Motorsport Park
92db for all cars at Mosport Driversʼ Development Track
.2 The Clerk of the Course at a Regional Championship Event will prohibit any
vehicle from running which twice exceeded the noise level on the course or in
a test session, as measured by a CASC-OR approved Noise Meter. At any
non-championship event the Organizer or Clerk may prohibit any vehicle from
running which the organizer deems to violate the maximum vehicle noise level.
I remember back in 2006-2007 there was a run on Cherry Bombs at Canadian Tire when CMP opened. Their noise restrictions are enforced however, they are a bit more forgiving than the sample provided in the rule book.
CMP Rules
1.Screening Test - After a brief visual muffler check, a stationary test is undertaken. Sound levels will be measured 15 feet in front and behind the vehicle while the engine is revved at the maximum allowable rpm or the red line of the tachometer.
◦Cars, the average should be no more than 100 dbA with no single reading over 104 dbA.
◦Motorcycles, the average should be no more than 98 dbA with no single reading over 100 dbA.
2.Pass-by Test - With the vehicle under full acceleration on the track, a reading will be taken from 50 feet. The maximum level allowed is 92 dbA. This level and standard is the most commonly used in North America and Europe and is where the entire industry is headed. Tests are valid for 9 months unless modifications to vehicle are made.
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