京商水上電單車wave chopper 點裝水冷?

船友，我未試過係咁細隻船仔度裝水冷，不過多口問下您用邊種摩打同電變，同埋行幾大電壓，何解要用到水冷咁誇？除非您好似德國Rolf Sägesser咁改法(德文黎架，睇圖):
http://home.datacomm.ch/rolfsaeg ... r/jetski_kehrer.htm

睇埋呢個您一定有idea~ 留意文中插圖 - "The stern of the JetSki with inlet waterpipe for motor cooling and oulet above it"

http://www.jet-drive.de/cms/content/view/26/lang,de/