Quote:
Originally Posted by Big fish
Thanks for the input guys. I'm just worried about getting stranded with a single. And I'm not sure if we have that type of insurance in hawaii. What do you think about the yamaha 70's? Weight is 257 pounds each. I'll be adding a bracket and it's only about 54 pounds heavier than my 60's.
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Understand the desire for get home capability, but I agree with Gillie and FS . . . 514 lbs, especially mounted way aft on a bracket, is too much of a CG shift for the 20' hull! Trust me, I went from a 300 lb motor on the transom to a 429 lb motor on a 30" bracket, on a Seafari, which is less stern heavy than a CC model, and I still had to make a lot of performance compromises with a 4B prop and drag-creating doelfin to get back to the sweet ride, low planing speed and great handling I had originally!
Not sure you could even move the gas tank and batteries far enough forward to compensate. Maybe it'd work if you moved the whole console a couple feet forward. A Hermco bracket MIGHT keep it reasonably level at the dock, but the flotation tank's out of the water when you're on plane, so the boat will still know that you seriously screwed up it's CG, Your min planing speed will be in the mid-20's instead of the low teens. Rather than have an expensive stern-heavy twin engine rig that won't plane on one engine, I'd vote for a cheaper well balanced boat with single engine + kicker that rides better, costs less to operate and maintain, and still provides equal safety/reliability.