Asking if there are any factory or aftermarket kits to increase the horse power on my Suzuki DF15 4 stroke outboard motor. I am running this motor on my J16 Carolina Skiff. Looking for any ideas from from someone thats done a little work on one, changing motor size is last resort. Getting 22 mph by my self with a 9 1/4 x 9 prop - with second man aboard drops to 14 mph - Installed a 9 1/4 x 7 prop - get 17.5 mph at 6500 rpm - at 6000 rpm drops to 15 mph - second man aboard drops to 12.5 mph at 5800 rpm. Waiting for a 9 1/4 x 8 prop (back ordered) maybe will help ???? Thanks - Phil<br /><br />------------------<br />Phil Petrosky
