Re: Minimum Hp for 23 CC??
I had a customer who in '84 chose to repower his 23' SF from twin '75 115 V4 Evinrudes to a single 175 hp Merc. He gained a couple mph in top speed, from 28-29 mph to 30-31 mph, but it took a lot longer for him to get on plane. After 2-3 months with the 175 Merc, he repowered again with a single 225 hp Mercury. Since the 175 had only 15 hours or so, the marina owner gave him full credit toward the new motor, and we put the 175 on the back of our 19' Robalo tow boat.
I would say 200 hp at the prop-shaft is the minimum, but it really is the minimum. You'd be much happier with a 225 or 250.
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Common Sense is learning from your mistakes. Wisdom is learning from the other guy's mistakes.
Fr. Frank says:
Jesus liked fishing, too. He even walked on water to get to the boat!
Currently without a SeaCraft 
(2) Pompano 12' fishing kayaks
'73 Cobia 18' prototype "Casting Skiff", 70hp Mercury
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