Re: Inboard Diesel Jackshafted Vs. Twins on a Seamark
Danny,
I think the 315 hP cummins is a bit heavy for a 23. You may want to talk it over with a full time boat builder like Hermco. The guys here will go up to a 250 hP in a 24 ft. Yellowfin (modified SeaCraft, they made a plug with the v a bit shallower and cast a mold to shoot an entirely new hull which is called a Yellowfin 24 or 24 Saltwater, same process for the 26 Yellowfin like my Dad's) using a v-drive set up. My friend has the 250 cummins and v-drive in his 24. When I have time I need to meet up with him and get pics of his boat and measurements. Will keep you posted. Just to let you know the 250 cummins may not be available as a rebuild unless you have cummins build it. As mentioned earlier the cummins dealer in Hawaii told us only the 210 hP and 315 hP are available as off the self rebuilds. They can do the 250 or other configurations previously offered and a custom build charge will apply. He told us the main diff. between the 210 and 315 is that the 315 has bigger injectors and requires a significantly larger cooling system which is where the bulk of the weight comes from. The 315 weighs about 200 lbs. more than the 200 hP volvo with a 290 outdrive. Double check the specs to be sure. I believe I found the volvo specs on their website. They have a historical engine spec link for obsolete volvo engines. Hope you find this of help. Take it easy, Greg
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