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Classic Goldwing Technical Forums
Engine & Fuel System Modifications
Tuning the VW Plenum Manifold, Adding a Venturi to the Tube Runners
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<blockquote data-quote="joedrum" data-source="post: 100354" data-attributes="member: 98"><p>okay im glad you worded this just right ... but im afraid captain discount and tom are really off base here </p><p></p><p>when you choke down that close to the head ...with smaller opening than the valve ...its causes resistance drag ..harder to turn the crank ....when it its that far from the carburetor ...its almost useless in an oldwing situation there air speed at the carb is a problem with the smaller displacement motor of the oldwing .....this pretty much why 1200s heads vortex type stuff are failures in performance and mpg ...</p><p></p><p>what you want ...and this is me joedrum speaking ...is there to be full run opening of the runner before the choke .. witch is shape like an hour glass to not place any resistance on the motor ...this ensures deep intake of charge with least amount of effort ...and speeds the air up closer to the carb ...but there are always other variables to this to consider ...</p><p></p><p>on oldwings its air speed at carb that's more important than this captian discount and tom thing or what ever they named it </p><p></p><p>im pretty well sure its not very good for oldwing to get good performance .....seems to create drag and way to far from carb </p><p></p><p>i went with in the runner choke it in the plenium end .....not close to head ...so far its hard for me to discount what I got but I try to ...and if change is needed I do it ....there is a perfect spot for this choke as it is in the oldwing set up ...and im betting where mine is at is a heck of a lot closer than at the elbow and head </p><p></p><p>but one never knows till they try all things not just think them ...so we will see :mrgreen:</p></blockquote><p></p>
[QUOTE="joedrum, post: 100354, member: 98"] okay im glad you worded this just right ... but im afraid captain discount and tom are really off base here when you choke down that close to the head ...with smaller opening than the valve ...its causes resistance drag ..harder to turn the crank ....when it its that far from the carburetor ...its almost useless in an oldwing situation there air speed at the carb is a problem with the smaller displacement motor of the oldwing .....this pretty much why 1200s heads vortex type stuff are failures in performance and mpg ... what you want ...and this is me joedrum speaking ...is there to be full run opening of the runner before the choke .. witch is shape like an hour glass to not place any resistance on the motor ...this ensures deep intake of charge with least amount of effort ...and speeds the air up closer to the carb ...but there are always other variables to this to consider ... on oldwings its air speed at carb that's more important than this captian discount and tom thing or what ever they named it im pretty well sure its not very good for oldwing to get good performance .....seems to create drag and way to far from carb i went with in the runner choke it in the plenium end .....not close to head ...so far its hard for me to discount what I got but I try to ...and if change is needed I do it ....there is a perfect spot for this choke as it is in the oldwing set up ...and im betting where mine is at is a heck of a lot closer than at the elbow and head but one never knows till they try all things not just think them ...so we will see :mrgreen: [/QUOTE]
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Classic Goldwing Technical Forums
Engine & Fuel System Modifications
Tuning the VW Plenum Manifold, Adding a Venturi to the Tube Runners
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