Help Setting up a 1996 Eyra with a new Yamaha 175 V Max SHO

[gibbycat]

Wanted to know what prop and jackplate height to use when setting up this new engine. Any help would be greatly appreciated

[Eyra1]

Probably no one else will have that combo, or maybe 1 other. I have a 96 Eyra w/ 175 Mercury Pro XS Optimax 2 stroke. Found our best prop is a 24 Tempest most of the time, 25 in cold weather. The Eyra runs the prop a little deeper due to it's excellent big water performance. Try 3.25-3.5 inches Prop to Pad. Jackplate height is a huge variable since you didn't mention what kind of plate you have. Ours is a detwiler hydraulic.
I would think 24 or 25 pitch prop is ballpark.

[gibbycat]

I have a Cook manual 5 1/2” setback jack plate

[Bass Cat Boats]

The ‘96 Eyra liked a three blade propeller and they performed better with one. Though we don’t know of any that have a new 175 SHO on them.

[Finlander]

My 96 with a 150 XRi did an honest 66 with a 24 Trophy. It also had a CMC hydraulic jack plate and needed it. The boat was very weight sensitive so the jack setting varied quite a bit depending on load. To low with a light load the boat got very loose with the Laser 3 blade. A buddy of mine who bought his at the same time I did was running a new 25 Tempest Plus with great success. My advise is to invest in a short Hyd. Jack plate.

[adchunts]

I run a 25 pitch Fury 3 on my Sabre with 175 Pro XS, so I am guessing either the 24 or 25 would make that Erya com alive.

[willwork4fish]

When I had my 96 with a 150 ProV I ran a 25M. I totally agree with Eyra1 about the boat being sensitive to load. Once I put an 8" Bobs on it I could tweak it based on the load. For me I noticed that once I filled the livewells (which are hure) I needed to run a little lower to get my best performance as opposed to when they were empty. If you're throwing a SHO on it I'd spend the extra grand or so and put a hydraulic plate on it. That's gonna be a nice combo.

[Eyra1]

I have a Cook manual 5 1/2” setback jack plate

With a manual plate you will mark a spot on the plate, make a few runs, then raise the plate in 1/4" increments (mark the plate at the new level) and make a few more runs. A little more time consuming than a hydraulic plate. Make sure you set up with the Eyra loaded (your gear, livewells full, etc). Doing this helps you gain max performance loaded while using a manual plate.
We tried a 24 Fury, it just didn't work as well on the Opti Pro XS as the Tempest. Fury is a good prop, just not the answer for every hull. Could try the Yamaha T series in 24.