Thread: RPI mounted
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      08-27-2012, 03:07 PM   #25
dubsesd
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Drives: G05 X5/ 2016 F80 M3 INDVL
Join Date: Jul 2011
Location: Ottawa

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update.....

obviously had some drone with the rpi's. here is something you guys may want to try since it worked for me. go buy roxul acoutic batts and line your trunk with 1" of batting. i removed all my carpeting and plastic panels and put acoutic batt under everything. replaced all the panels and carpet (was much harder putting them back since it was tight with the batting) and the drone from 1-2nd is almost gone. only drone now is in high gears under load at low rpm. i say this reduced drone by 30%

im also putting in a trunk mat to flatten out the carpet closest to the seats since its a bit soft now which should also contribute some sound insulation as well. went for a drive and its noticably quiter in the cabin.
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