How to test engine under load?

[spotfin]

I have a 1999 200 hp optimax on my year 2000 cobra 201d bass boat and want to test it under load vs just use hose ear muffs and rev it up. Is there a way to load test the engine without having to trailer it to the lake? Thanks

[Savage]

Yes, with a dynamometer.

[massbays]

I purchased a Dyno about 30 yrs ago. expensive and not as good as using the boat ramp.
you can modify a prop to allow full rpm at a ramp.

[EuropeanAM]

If you would, please take a moment to review the Announcements at the top of the Forum, and be sure to provide the Required Info (serial number) when posting. Thanks!

You can also use the dyno in a test tank, which is pretty slick.

But it's probably cheaper to go to the ramp.