I read through that "review," and started laughing almost
immediately.
There are so many "variances" from a scientific test that the entire
exercise has no validity. The easiest one to start with is this: the
Merc was a motor prepped for the test by that company's race division.
Once you see that, there's no reason to read any further. Then there's
the slight problem of one manufacturer not having a prop that'll allow
its engine to reach the top of the max RPM range.

This is science? No, this is b.s.

I just read the whole thing ... The merc fit the rules as you can
purchase it as is. So its not a one of akind motor. Same with the
prop.

It is too bad that one manufacturer didnt come up to rpm but they dont
have a prop for that ... so not much that can be done here

Matt