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automatic dual mode muffler?
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<blockquote data-quote="ken12292703" data-source="post: 2493928" data-attributes="member: 32"><p>Hi bros,</p><p></p><p>Here's my little concept~</p><p></p><p>http://i53.photobucket.com/albums/g61/ken12292703/My%20Exhaust%20Prototype%20Valve/1.jpg</p><p>Example of exhaust</p><p></p><p>http://i53.photobucket.com/albums/g61/ken12292703/My%20Exhaust%20Prototype%20Valve/2.jpg</p><p>Another view</p><p></p><p>http://i53.photobucket.com/albums/g61/ken12292703/My%20Exhaust%20Prototype%20Valve/3.jpg</p><p>Closer view</p><p></p><p>http://i53.photobucket.com/albums/g61/ken12292703/My%20Exhaust%20Prototype%20Valve/4.jpg</p><p>This simple plate is needed, don't have to fabricate the exact one. Similar that can be sticked by magnet. Use alluminium also can, make sure you attach a metal plate for magnet to stick on.</p><p></p><p>http://i53.photobucket.com/albums/g61/ken12292703/My%20Exhaust%20Prototype%20Valve/7.jpg</p><p>Idle or slow throttle.</p><p></p><p>http://i53.photobucket.com/albums/g61/ken12292703/My%20Exhaust%20Prototype%20Valve/8.jpg</p><p>Another view of it</p><p></p><p>http://i53.photobucket.com/albums/g61/ken12292703/My%20Exhaust%20Prototype%20Valve/5.jpg</p><p>This is how it works. The magnet at the bottom sticks the plate at a certain amount of force. When you open throttle more, back pressure increase that overcome the magnet force hence release the plate. For the top, just use a simple door hinge or flange. Magnet? Use those closet magnet or any magnet you can find. Hard disk magnet works as well~ The stronger the magnet, more back pressure needed to open it.</p><p></p><p>http://i53.photobucket.com/albums/g61/ken12292703/My%20Exhaust%20Prototype%20Valve/6.jpg</p><p>Full throtle.</p><p></p><p></p><p></p><p>This concept might look ugly, it's just a concept for cheap and simple noise control for "aahheemmm" that can save you $$$.</p><p></p><p>I don't have the time to do the real thing yet. These are my drawings, not copyrighted, copy or share with others, not a problem.<img src="http://zerotohundred.com/forums/styles/default/xenforo/smilies/burnout.gif" class="smilie" loading="lazy" alt=":burnout:" title="Burnout :burnout:" data-shortname=":burnout:" /></p></blockquote><p></p>
[QUOTE="ken12292703, post: 2493928, member: 32"] Hi bros, Here's my little concept~ http://i53.photobucket.com/albums/g61/ken12292703/My%20Exhaust%20Prototype%20Valve/1.jpg Example of exhaust http://i53.photobucket.com/albums/g61/ken12292703/My%20Exhaust%20Prototype%20Valve/2.jpg Another view http://i53.photobucket.com/albums/g61/ken12292703/My%20Exhaust%20Prototype%20Valve/3.jpg Closer view http://i53.photobucket.com/albums/g61/ken12292703/My%20Exhaust%20Prototype%20Valve/4.jpg This simple plate is needed, don't have to fabricate the exact one. Similar that can be sticked by magnet. Use alluminium also can, make sure you attach a metal plate for magnet to stick on. http://i53.photobucket.com/albums/g61/ken12292703/My%20Exhaust%20Prototype%20Valve/7.jpg Idle or slow throttle. http://i53.photobucket.com/albums/g61/ken12292703/My%20Exhaust%20Prototype%20Valve/8.jpg Another view of it http://i53.photobucket.com/albums/g61/ken12292703/My%20Exhaust%20Prototype%20Valve/5.jpg This is how it works. The magnet at the bottom sticks the plate at a certain amount of force. When you open throttle more, back pressure increase that overcome the magnet force hence release the plate. For the top, just use a simple door hinge or flange. Magnet? Use those closet magnet or any magnet you can find. Hard disk magnet works as well~ The stronger the magnet, more back pressure needed to open it. http://i53.photobucket.com/albums/g61/ken12292703/My%20Exhaust%20Prototype%20Valve/6.jpg Full throtle. This concept might look ugly, it's just a concept for cheap and simple noise control for "aahheemmm" that can save you $$$. I don't have the time to do the real thing yet. These are my drawings, not copyrighted, copy or share with others, not a problem.:burnout: [/QUOTE]
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