eXJey
18/02/2007, 22:49
Λεπτομέρειες στο http://www.zx11.info/zx11/cycle1990.htm
<<Unlike other "fresh air" systems that merely direct cool air into the engine bay -such as that used on Suzuki's GSX-Rs and Kawasaki's own ZX-7- the ZX-11's ram air is a closed system: The front inlet duct is the only source of incoming air to the airbox. This sealed system accomplishes two things: First, it creates a ram effect that pressurizes the fuel mixture through the carb throats, and increases intake velocity. Second, it provides a steady diet of cool, dense air by completely isolating the carbs from engine-heated air.
Airbox ducting alone creates a pressure rise in the carb throats only; without also increasing float bowl pressure, the engine would merely lean out and run poorly as pressure in the throats increased. Early reports had the ZX-11 fitted with an electronic fuel-management system, but Kawasaki engineers found a far simpler -and lest costly- solution: They vented the bowls to the incoming air source -the mouth of the duct- through a tube that boosts bowl pressure as airspeed and intake velocity increases.>>
<<Unlike other "fresh air" systems that merely direct cool air into the engine bay -such as that used on Suzuki's GSX-Rs and Kawasaki's own ZX-7- the ZX-11's ram air is a closed system: The front inlet duct is the only source of incoming air to the airbox. This sealed system accomplishes two things: First, it creates a ram effect that pressurizes the fuel mixture through the carb throats, and increases intake velocity. Second, it provides a steady diet of cool, dense air by completely isolating the carbs from engine-heated air.
Airbox ducting alone creates a pressure rise in the carb throats only; without also increasing float bowl pressure, the engine would merely lean out and run poorly as pressure in the throats increased. Early reports had the ZX-11 fitted with an electronic fuel-management system, but Kawasaki engineers found a far simpler -and lest costly- solution: They vented the bowls to the incoming air source -the mouth of the duct- through a tube that boosts bowl pressure as airspeed and intake velocity increases.>>