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    Yamaha 200hp 3.3L or 250hp 3.3L ?

    Good evening,I have to decide which of these motors to purchase.The specs are the same, difference in HP I suppose is due to difference in the injector pump.If I don't need top end but more concerned with just thrust(heavy loads) and being kind to the block by propping down.My question is why...
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    2-250HP Yamahas vs 330HP Volvo I/O diesel

    Good morning,I'm building a new 34 ft prawn boat should be 7,000 lbs and at least 12,000 lbs. loaded would anyone know how my performance will be powering with 2-250HP Yamaha's vs a 330 HP Volvo I/O diesel.My comrades continue to power their commercial boats with Volvos and continually have...
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    V6 3.3L250 vs V64.2L250 is the extra torque worth added cost

    Good morning I've been running a 250 Saltwater Series on a commercial prawn boat.Through trial and error(blown blocks) I've got it propped right and don't want to change the size but wish to repower with a new 3.3L250 or a 4.2L 250 - the 250 Saltwater series had a gear ratio of1.81:1 the 3.3L...
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