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ORIGINAL: razarr69
glasspacks get there sound from the back pressure caused by the shape and packing where as my race bullets jus flow through and the sound comes from the sound waves not being cancelled out completely.
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And just how the hell do you know that, PhD?
Back pressure refers to resistance of exhaust flow at exhaust valve in the head. Although there is resistance to flow in any abstruction in exhaust, be it a bump or a muffler, backpressure refers to the overall ability of exhaust system to flow the exhaust gases.
Your race mufflers and glasspacks dumpen the sound pretty much the same way. Sound is absorbed by material packing around the race muffler or glasspack. What is the type of this material does not matter. What matters is that the sound is being dumpened or absorbed. In a chamber muffler, the sound is actually being canceled.
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I have read alot of your posts and quite franky, 90% of the time you don't have a clue what you are talking about
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Well Franky, I have read most of your posts too, 100% of the time you are stubborn in your believes of how things work. Could it be because you drive a chevy and have dog that smokes?
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a muffler is any device that muffles (hence the name muffler)
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Yes. But there are straight through mufflers, muffler mufflers, and even aquistic mufflers. The latter ones use a mic and speaker to cancel the sound completely. I bet you never even heard of such a thing.