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To: flyrotary@lancaironline.net
Subject: Re: [FlyRotary] Re: 20B install issues overcome
Date: Mon, 05 Jan 2009 14:49:34 -0500
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Earnest,
I believe that the SuperTrapp muffler is an example of a band gap device and it worked well, if properly tuned.
I think the large block idea has merit too, but you will have to allow enough thickness to prevent the tubes that see the exhaust first to fight the harmonic vibration and heat. Different size diamonds in the exhaust stream might also help fight harmonics.
Bill Jepson



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Earnest,<br>
I believe that the SuperTrapp muffler is an example of a band gap device and it worked well, if properly tuned.<br>
I think the large block idea has merit too, but you will have to allow enough thickness to prevent the tubes that see the exhaust first to fight the harmonic vibration and heat. Different size diamonds in the exhaust stream might also help fight harmonics.<br>
Bill Jepson<br>
<br>
<br>
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