10-07-2014, 12:57 PM
They usually take it from 1.5m at 4.5k RPM, sometimes 3/4 of the rev range (this is for bikes mainly). Occasionally it differs but they are the most common.
On my old 6, if I revved it gently it would clear sound testing at pretty much any RPM, but if on WOT it was 101dB.
On my old 6, if I revved it gently it would clear sound testing at pretty much any RPM, but if on WOT it was 101dB.