Thanks for all of the comments so far. It helps me understand what's going on.
I suppose I should expect more revs if I was to tow with it. I didn't tow with overdrive off. Sounds like that might have helped. I also didn't try Premium this trip although I do have a basic tuner to adjust for tire size and I believe I can change octane as well. The tires btw are barely larger than stock for the Limited model which I have. I also do have the factory tow package.
True that I've been driving a diesel of one form or the other for the past 11 years. Also, it sounds like my diesel will more easily do the job and even in F450 trim, I can expect better mpg than the Explorer at 4000 or more RPMs. Also, with less wear and tear.
Sounds like some of you aren't familiar with a drift boat. The only motor is an electric along with the battery for that. I figured 200 lbs for the electric plus Group 24 batteries.
Once upon a time, I remember seeing the weight on the Willie site at around 325 for a 16x54. Mine does have the UMHW bottom, so figure some weight for that let's call it 500.
I figured 400 lbs for the tires. Maybe it's high, but either way, it's not a heavy load for an Explorer that is rated to tow much more.
Here's a picture of the subject boat and trailer.
A video of a driftboat in action is below. In a river, it's about steering the boat with the oars. Nope, not mine.
If you don't like the music, hit mute before you watch!
https://www.youtube.com/watch?v=htjBaOeRVUc
