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Classic Goldwing Technical Forums
Engine & Fuel System Modifications
Aluminum intake manifold
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<blockquote data-quote="slabghost" data-source="post: 181426" data-attributes="member: 648"><p>Theory and perceived performance holds the fuel charge "bounces" back as intake is closed. Opposite cylinders is on exhaust stroke so draws it that direction as it begins the compression stroke. This adds more fuel and pressure (compression) to the fuel charge. It then bounces back to the other side. Interrupting the bounce or reducing the distance will reduce the compression of the fuel charge and alter how compression is gained prior to the next opening of the intake valve. It may even put the peak of the compression charge directly under the carb in the plenum at some point which may cause it to stall or backfire.</p><p> Yours is a different build and view of things. I suppose it is possible it will indeed work as you think. Or possibly the slashes on the ends may make no difference at all. There are a lot of very different manifolds in use now and all seem to perform very well once the carb is adjusted. So not saying you are wrong at all. Just giving theory and possible outcomes. At least you haven't put in any sort of check valve which would make a huge difference. :thanks: </p><p>Best wishes on this build and I'm following closely.</p></blockquote><p></p>
[QUOTE="slabghost, post: 181426, member: 648"] Theory and perceived performance holds the fuel charge "bounces" back as intake is closed. Opposite cylinders is on exhaust stroke so draws it that direction as it begins the compression stroke. This adds more fuel and pressure (compression) to the fuel charge. It then bounces back to the other side. Interrupting the bounce or reducing the distance will reduce the compression of the fuel charge and alter how compression is gained prior to the next opening of the intake valve. It may even put the peak of the compression charge directly under the carb in the plenum at some point which may cause it to stall or backfire. Yours is a different build and view of things. I suppose it is possible it will indeed work as you think. Or possibly the slashes on the ends may make no difference at all. There are a lot of very different manifolds in use now and all seem to perform very well once the carb is adjusted. So not saying you are wrong at all. Just giving theory and possible outcomes. At least you haven't put in any sort of check valve which would make a huge difference. :thanks: Best wishes on this build and I'm following closely. [/QUOTE]
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Classic Goldwing Technical Forums
Engine & Fuel System Modifications
Aluminum intake manifold
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