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get to plane and speed with etec 175
I repowered with a 2008 etec 175 on my 1977 V20 and got to use it three hours Friday. The two stroke is a torque monster pushing a 14.5" x 19" pitch aluminum evinrude new prop.
Three hours of use, mostly cruising at around 2700 rpms and about 26 mph. 3000 rpms and 28 mph, 3200 and 30 mph easy cruising. 4,000 rpm and about 40 mph. I ran it into the wind briefly wot and it hit 48 mph with the nose trimmed down. I did not do it for long but it was doing 5,000 rpm and later learned when I started trimming during cruise if I got the nose up a bit it added 200 rpm and 2 mph so I think trimmed wot it will hit very close to 50 in flat water with just me in it and full tanks. Up on plane with gradual acceleration...how about the torque monster does it at any rate you want. It throws it up on plane faster than any boat I've ever had...very few seconds if you want and no bow way up in the air stuff with the step lift..hit it medium, go more and you are up as fast as you can handle the throttle. The engine is so quiet you can barely hear it. If you are idling along at 4 mph you can't really hear it at all. In three hours of use constantly I consumed 7.6 gallons of gas from the starboard 20 gallon tank and never touched the port one. That's an average of 2.5 approx. gph which is way better than my former Mercury 3.7 l four cylinder 170 hp inboard on a Wellcraft 190 American i/o. The new engines, this one had 300 hours on it and just serviced...are just phenomonal and lots lighter weight than the four strokes with way better torque as well as a two stroke. Smoke? Using the Evinrude high test synthetic oil it smokes not a bit and uses/injects from the oil tank based on computed/sensored need at something like 75 or 85 to 1 ratio depending on speed and rpms. Best engine I've ever seen. The boat tracked easily at 48 mph and handles any wakes or waves I saw on the river like they were nothing. There's a reason they sold so many of these. When I got back to the dock and got it on a windy day back on the trailer solo and pulled the drain plug...dry as a bone. I'm pleased. The data is from my experience with a specific motor. Late March, 2017 at about 60 F outside. Last edited by Lance Pearson; 03-27-2017 at 06:26 PM. 
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#2
03-29-2017, 05:56 PM
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somebody posted in this thread that we should post some videos. i think we should do that! give readers a good idea of what to expect and too back up some of these claims.
lets have a virtual race! quickest to plane, quickest to top speed and fastest boat. im willing to wager a beer, lol
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