90 ETEC on a Potter 20 CC???

[Terry England]

You originally asked about an E-tec 90, I think. They only come in 2 to 1 gears and turn about a 13 -1/2" wheel. You could use one on that boat with maybe a 13" pitch wheel and get in the high 20's WOT. I think you'd make about 22 MPH cruising at 4,000 and it would leave the same wake as a duck.

The Marshtackie is a Seacraft "Panga", which are even rarer than the Overnighters. I've run a 90 E-tec since 2006 on it and although the boat is about as utilitarian as a Jon Boat, I load it up with a 1500 pounds of dive gear and 3 or 4 old fat divers and run 25 miles out in the Gulf with it on a regular basis. Loaded she makes about 20 - 22 MPH at 3600 rpms because the little triple has lots of mid-range torque and pulls like a John Deere. WOT (5600) loaded it will make 32 mph. The last 56 mile day trip I made took 16 gallons to top off.

Lots of good opinions on this site. This is just one.