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Old 05-28-2010, 12:44 PM
Bushwacker Bushwacker is offline
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Join Date: Feb 2007
Location: N. Palm Beach, Fl.
Posts: 2,456
Default Re: Overall range of Seacraft 18

Before I repowered I had a 1975 115 V-4 that I bought new when I bought my then 3-yr old Seafari. It used to burn about 8 gph at 4500 rpm/22-23 mph cruise. Over the 6 trips I made to the Abaco's with it, loaded very heavy, I averaged 2.8 mpg. I used to figure on 2 mpg just to be safe and have some reserve.

I just finished a 700 mile trip around Fla. with the E-Tec and averaged 4.35 mpg, again loaded very heavy and with Bimini top up but generally running in fairly flat water relative to the Bahama trips. I usually assume 3 mpg with it for planning purposes, but the neat thing about the E-Tec is that if you get in a situation where you're worried about running out of gas, just slow down to hull speed/900-1000 rpm! When they're running in the ultra-lean stratafied charge mode they burn even less gas than a 4-stroke! I have the I-Command gages with GPS spedo and fuel flow from computer, and it typically shows about 10 mpg at 5 mph! That system appears to be very accurate . . . every time I refueled the actual fuel used was within about 0.1 gallons of what the computer said I had used!
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'72 SeaFari/150E-Tec/Hermco Bracket, owned since 1975.
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