crashing aint so bad
Join Date: Nov 2006
Location: santa barbara, ca.
Bike: 2005 red r6
Re: Exhaust Noise Level
There is a protocol for the way it's measured though. It should be measured at a 45 deg. angle from the exhaust exit at 4' away or something like that. It isn't simply stuff the DB meter near the exhaust and let it rip. Try measuring it at different angles and distances and you will be surprized at the different reading you get. Remember too that for every doubling of distance you loose 6 Db. of volume. So if you measured at 2' then it will be 6 Db. quieter at 4'. Which would put you at the 106 Db. mark. Also keep in mind the weighting that is used to measure. A and C are the most common. C will produce a lower level than A weighting. A weighting is used to see what volumes are actually being presented and C weighting adjusts to account for how the human ear perceives sound. Since the human ear is less than perfect, the volume is lower. Something to keep in mind. You should find out what the track protocol is.
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Last edited by luke geis; 01-13-2011 at 02:41 AM.