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Classic Goldwing Technical Forums
Engine & Fuel System Modifications
the PVC manifold didn't go so well so now I'm making one from copper plumbing parts
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<blockquote data-quote="chuck c" data-source="post: 133780" data-attributes="member: 2907"><p>I believe you that a really well designed manifold and set up carb can kick ass. I'm not sure it would beat a show room bike of the same year with all shiny new carbs straight from Japan. There's almost no way to test that without a dyno and track to see how the specs match those of the bike when it was new. You're comparing yours to 30 year old Goldwings with 30 year old carbs which validates what I think is true- 1 new clean well set up carb can work better than 4 old really ones. I don't know if it would beat 4 brand new ones.</p><p></p><p>You're saying it's possible to have both dependability and performance that equals or passes the OEM setup. I believe you. But there are reasons why racing boats and cars have changed stock singles to multiple carbs since the 50s. They are an expensive PITA but <em>when</em> they work right they beat singles almost every time when drag racing. It's a bit different when you want the power over longer time and RPM range. Look at the bike specs on the sales literature and they still give the 0-to-something time in tenths of a second. A second faster sells more bikes. That's the way a lot of bikes (and cars) are designed to this day: as drag racers. If you want that push you into the seat hang on acceleration until the 90s and fuel injection at each cylinder became easy, you needed multiple carbs and runners as short as possible. You also didn't care if they dumped in excess fuel. Now that's a no-no.</p><p></p><p>I would really like to see if Honda messed up and a single really does give <strong>better </strong>performance than a new set of 4 OEMs. Can you imagine if they had originally sold it with only one carb? For starts we wouldn't be having this conversation!</p></blockquote><p></p>
[QUOTE="chuck c, post: 133780, member: 2907"] I believe you that a really well designed manifold and set up carb can kick ass. I'm not sure it would beat a show room bike of the same year with all shiny new carbs straight from Japan. There's almost no way to test that without a dyno and track to see how the specs match those of the bike when it was new. You're comparing yours to 30 year old Goldwings with 30 year old carbs which validates what I think is true- 1 new clean well set up carb can work better than 4 old really ones. I don't know if it would beat 4 brand new ones. You're saying it's possible to have both dependability and performance that equals or passes the OEM setup. I believe you. But there are reasons why racing boats and cars have changed stock singles to multiple carbs since the 50s. They are an expensive PITA but [i]when[/i] they work right they beat singles almost every time when drag racing. It's a bit different when you want the power over longer time and RPM range. Look at the bike specs on the sales literature and they still give the 0-to-something time in tenths of a second. A second faster sells more bikes. That's the way a lot of bikes (and cars) are designed to this day: as drag racers. If you want that push you into the seat hang on acceleration until the 90s and fuel injection at each cylinder became easy, you needed multiple carbs and runners as short as possible. You also didn't care if they dumped in excess fuel. Now that's a no-no. I would really like to see if Honda messed up and a single really does give [b]better [/b]performance than a new set of 4 OEMs. Can you imagine if they had originally sold it with only one carb? For starts we wouldn't be having this conversation! [/QUOTE]
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Classic Goldwing Technical Forums
Engine & Fuel System Modifications
the PVC manifold didn't go so well so now I'm making one from copper plumbing parts
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