For one reason or another the Magic pie rings like a bell when under load. This attracts unwanted attention. Perceived or real, I know this doesn't bother some of our worldly counterparts but for others in more "jurisdictionally zealous" parts of the world, it's a bit of a concern.
This is an accepted fact of having a Magic pie. And one that is well hidden in the annals of the GM website (i.e. there's no data /info for the noise it makes)
Not one to be defeated in this venture, I'm looking for ways to dampen the electrical pinging noise that attracts unwanted attention from various entities. - Unofficial or otherwise in order to attain a level of stealth that would put the MP into the next level of stealthiest.
So I have embarked on a mini project to remove or dampen the pinging pulses pinging noise that reverberates through the MP housing and makes it ring like a bell.
I'd like to use this thread as a discussion for ideas, development and testing of various solutions so that other MP owners can contribute to and use.
There are a few possible solutions:
Sound absorbing acoustic tiles.
http://www.google.com/search?aq=f&sourceid=chrome&ie=UTF-8&q=Sound+Absorbing+Acoustic+TilesThese are tiles made of foam that trap the resonant waves of sound in the mid to high frequency range (i.e. not bass sounds) which falls into the range of our MP pinging noise. The sound energy is then converted into heat energy where it dissipates.
The trick here is to place this foam in the most advantageous spot on the MP so that the sounds are absorbed in the most efficient manner while absorbing the most sound.
I was thinking inside the motor would be one option but the big issue here it heat. You're effectively insulating all that heat inside the motor and this could spell trouble unless some sort of ventilation is introduced.
The other option is to place foam on the outside of the motor having placed acoustic foam in wheel covers - which would also look cool. see:
http://www.google.com/search?um=1&hl=en&safe=active&biw=1263&bih=528&tbm=isch&sa=1&q=polo+bike+wheel+covers&oq=polo+bike+wheel+covers&aq=f&aqi=&aql=&gs_sm=e&gs_upl=9507l10179l0l5l3l0l0l0l2l323l636l3-2This would also add to the stealth factor because you would not be able to see or hear the motor. If the motor has acoustic tiles on the inside AND outside, then this stealth solution would even put The Predator to shame.
As long as you can manage that heat then this could work.
Time to foam up!
Thoughts?
