Quote:
Originally Posted by Handful in NC
. . . In my subjective opinion, it is louder than a 4 stroke at planing speeds.
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Might be true if comparing to the big V-6 4-strokes, and certainly the combustion frequency would be 2X higher. However all the test reports I've seen of the smaller 2.7L 150 hp V-6 vs. the 150 4 cyl. 4-strokes on 20' boats, sound level measurements showed that the E-TEC was actually quieter than the 4-strokes at about 30 mph! It's such a strong motor that it could maintain that speed at significantly lower revs. It's nice to be able to easily converse with your mates at 25+ mph! At idle, it IS a bit louder and throatier than the 4-strokes, but it's very smooth and sounds good to my ears!