I have a 1972 14ft Aluminum Starcraft with a 9.9hp motor. This motor does not push the boat very good. I would like to know if anyone knows the max horse power might be for this boat. There is no plate on the boat to refrence.
While a 15 surely will do better than the 9.9.The 9.9 should be able to do 19 or 20 mph with careful weight distribution and a light load.If you rig or buy tiller extension so you can sit on the middle seat that would help.
Also if you raise the motor vertically 1/4 inch at a time till just before ventilation becomes a problem you may pick up some speed.Just be sure it pumps water.
this is a 1960 14' lonestar w/ 1955 15hp evinrude. center seat controls, and stick steering. with me alone, it was one of the most fun boats i ever owned. right at 30mph. just a lot of fun to run around in. wasn't afraid of rough water. sorry i sold it. offer i couldn't refuse.
I have an old 14' starcraft and the rating plate is for 20hp.
My 18 pushes it w/o any problem and it's a 1967. The older outboards were rated for hp at the powerhead and the newer ones are rated at the prop. A new model 18hp would probably be even faster.