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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Ceramic coating
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<blockquote data-quote="davidd" data-source="post: 123544" data-attributes="member: 1177"><p>I don't believe it can be done in the "normal" way we think about the ceramic coating of exhaust pipes. Ceramic coatings are applied with a "plasma" spray system that applies the powdered ceramic coating in a stream of gas produced by DC current. The general rule is you can only apply plasma sprayed coatings to areas you can see, like the exterior of the pipe. Interior coating with a plasma spray unit is not performed, as far as I know.</p><p></p><p>There are "paint-on" ways of coating the internal portion of pipes, but I do not know about durability. Ceramic engine coating appears to work well for some items, but there is not much "scientific" data. I explored this area with an eye towards using an interior coating to adjust the internal diameter of the exhaust pipe. The performance of an exhaust pipe is based on its internal diameter, not its outside diameter. Adding an internal coating will generally increase the mean port velocity as long as the mean port velocity is already near the target area.</p><p></p><p>David</p></blockquote><p></p>
[QUOTE="davidd, post: 123544, member: 1177"] I don't believe it can be done in the "normal" way we think about the ceramic coating of exhaust pipes. Ceramic coatings are applied with a "plasma" spray system that applies the powdered ceramic coating in a stream of gas produced by DC current. The general rule is you can only apply plasma sprayed coatings to areas you can see, like the exterior of the pipe. Interior coating with a plasma spray unit is not performed, as far as I know. There are "paint-on" ways of coating the internal portion of pipes, but I do not know about durability. Ceramic engine coating appears to work well for some items, but there is not much "scientific" data. I explored this area with an eye towards using an interior coating to adjust the internal diameter of the exhaust pipe. The performance of an exhaust pipe is based on its internal diameter, not its outside diameter. Adding an internal coating will generally increase the mean port velocity as long as the mean port velocity is already near the target area. David [/QUOTE]
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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Ceramic coating
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