Re: E-tec 90 or E-tec 115
I'm inclined to agree with steelespike and cobra. If your boat is rated for 150hp, you may even want to consider waiting for the 150 E-TEC.<br /><br />The larger displacement engine doesn't have to work as hard to plane a boat, keep it on plane or cruise. <br /><br />Although the effect on longevity is negligable, generally fuel economy is usually better with the larger engine because it can run at a more efficient rpm to maintain the hull on plane, while a smaller engine typically has to turn more rpm to maintain an adequate power level to keep things happening.<br /><br />For example, when I first bought my 19' Lund (with a 150), I met another owner who had the same boat with the 115 cross-flow V4. Where I can keep my hull on plane at 2000 rpm, he had to be over 3200 rpm to stay on plane and generally had to run 3/4 throttle or higher just to cruise. Top end was about 32 mph with the 115, while with the 150 its 53-ish. I don't run there (53) much, but its nice to have when you need it.<br /><br />BTW the Lund hull weight dry is about 1300 lbs.<br /><br />-John