Some hints that your car might be too loud:
* All timing activity in the trailer ceases until you are at least 200 feet down the track away from us
* We can hear your car from the other end of the Stadium over the noise of closer cars
* The Corner Workers call in and say "I thought there was a noise limit here?" as you go past
* Your car is audible over the radios when Corner Workers try to call in cones, and you aren't close to that station
* A radio call is interrupted with "Wait until [your name here] is past - I can't hear you."
Most, sometimes all of these, happen at each AX.
I wonder if everyone knows just how loud 93 db is...
78 db is the level at which long-term exposure can cause hearing damage, 100 db is the sound of a jackhammer from 3 feet away (
or 3-93 db cars at 50 ft!), 120 db can cause immediate hearing damage, and 130 db is the point at which physical pain usually occurs.