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Classic Goldwing Technical Forums
GL1100
1100 exhaust modification
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<blockquote data-quote="joedrum" data-source="post: 79534" data-attributes="member: 98"><p>hmmm im not going to say much but I disagree with oldwings if theres a problem in exhast its almost always from restriction ....its obvious to me that oldwings like flow and very little back pressure to none ...all motors are different ...with total overlap in oldwing cams to only 10 degrees that is about all the back pressure needed ...motors with more overlap have greater need for backpressure ....a strait pipe will produce back pressure the longer it is the more back pressure period ....you can tune just about any exhast set up empty of baffles and plumbing with length of the final pipe exit ....this whole theory that back pressure is required for performance is bull ....if true dragters would have them period ...that's how it is to me</p></blockquote><p></p>
[QUOTE="joedrum, post: 79534, member: 98"] hmmm im not going to say much but I disagree with oldwings if theres a problem in exhast its almost always from restriction ....its obvious to me that oldwings like flow and very little back pressure to none ...all motors are different ...with total overlap in oldwing cams to only 10 degrees that is about all the back pressure needed ...motors with more overlap have greater need for backpressure ....a strait pipe will produce back pressure the longer it is the more back pressure period ....you can tune just about any exhast set up empty of baffles and plumbing with length of the final pipe exit ....this whole theory that back pressure is required for performance is bull ....if true dragters would have them period ...that's how it is to me [/QUOTE]
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Classic Goldwing Technical Forums
GL1100
1100 exhaust modification
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