M5 Guru (>2000 posts)
Join Date: Mar 2007
Location: San Diego
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At idle, 20" from tip, 45 degree angle, peak measurement:
Cold: 91 dB
Hot: 74 dB
Haven't had a chance to try 5600RPM yet though.
The RS decibel meters are about $30 or so, though the new digital ones are $50.
Thank you for posting this info. It's very convenience to have a handy sound meter in hand, huh? Cold at 91dBA
and it dropped alot. How was the sound at cold start in your opinion? Do you think it could still disturbing the neighbor? Sorry for asking too many questions, but I'm still paranoid from my past experience.
Just want to be cleared, your measurement included section1 and H-pipe+muffler, right? And I assumed H-pipe is equivalent to eisenmann section2.
Last edited by keang24; 18th July 2007 at 11:35 PM.