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Old 02-09-2010, 01:36 AM
Bushwacker Bushwacker is offline
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Join Date: Feb 2007
Location: N. Palm Beach, Fl.
Posts: 2,456
Default Re: 90 or 115 ETEC for 18SF?

I used to cruise my old 115 @ 4500 all day long on the Bahama trips with a very heavy load in the Seafari, burning about 8 gph; averaged 2.8 mpg. With that 300 lb motor, I could slow down and plane at 12-13 mph if it got rough, with the same or better mpg. I suspect a lot of guys with the 450+ lb 4 strokes have trouble planning below about 18-20 mph; you'll spend a lot of time airborne in a 20 at that speed in a 20 if seas are over about 3'! I also found another advantage with a small wound up motor in following seas - because I was well up on the torque curve, I could bump it up to 4600-4700 and it would stay on plane going uphill in the big swells with no throttle movement required. My 150 is so sensitive to the throttle that I think I now would be on and off the throttle a lot in the same sea condition.
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'72 SeaFari/150E-Tec/Hermco Bracket, owned since 1975.
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