Quote Originally Posted by Powerabout View Post
Perhaps one of those onshaft inline eddy current load cells might be an easier way to measure the output.
They used them on one European offshore sterndrive class to allow a power to weight specification to be met so I know they are small.
Looked through out the internet and do not find any eddy current unit that will handle this kind of HP except large dyno units, let alone the one described in your post.

After some research, it appears a 3 inch wide RPV Silent chain meets the HP requirements, although falls short of meeting the RPM range. That chain/sprocket set comes at a price of about $1400.00 dollars. We will see how the new double row chain holds up before that investment.