CONTINUOUSWAVE

Thanks for sharing that. It sounds like we are pretty much in the same place. I'm burning a bit more fuel but the Guardian is materially heavier and I've been testing with full fuel.

jimh wrote:On the switchable Suzuki gear case, are the gear ratios for standard rotation and counter-rotation exactly the same?

Yes, they are to my knowledge.

But were the faster LH propellers faster because the engine speed was faster? Or, were the faster LH propellers turning at the same engine speed as the RH propellers but they just made the boat go faster? Same max RPM but more speed. I would love it if someone could try the same experiment on their...

I am assuming the Suzuki 300 has their innovative and unique gear case that is designed to turn either in standard rotation or counter rotation, as set electronically into the engine controller. It never occurred to me that you'd run a left hand propeller on a single engine--and that the top speeds...

Where is the engine mounted? Load? So which prop (make, model and size) gave you theses results? FYI - A Outrage 25 with a Verado 300 (30inch shaft) hit 49 @ WOT so I think you are dialed in. http://continuouswave.com/ubb/Forum4/HTML/007923.html I mentioned those above: Suzuki 4x15.25x20 LH 150 gal...

Just wanted to share my performance numbers now that I have it dialed in: --2017 25 Guardian with a Suzuki 300 HP ---Suzuki four blade 15.25 x 20-pitch LH propeller --150 gallons of fuel --6-inch SeaStar jack plate All figures per GPS and Suzuki digital gauges 3900 RPM - 31 MPH at 3.0 MPG 4300 RPM -...