limbwalker
Seaman Apprentice
- Joined
- Jan 8, 2011
- Messages
- 30
Hello guys, I’ve owned my 20’ Lund Alaskan for over 10 years and that hull performed like a rock star with the original 320Lb 75hp Optimax Tiller. Ever since I’ve repowered with this new 390LB Etec 90HO Tiller, the hull rides absolutely terrible.
I was running 3 blade SS on the Merc and now running 4 blade SS Evinrude Rogue and no matter how much I trim, I’m wetting way too much of the hull. I’ve experimented with all motor heights and it works best slammed down to transom. That ol Optimax I could trim that hull up and just ride on the transom or trim down and wet all I needed and it was fantastic but this new engine and prop combo has me baffled.
I’m aware the difference in gear ratios between the Merc and evi bc I was running a 3 blade 19” pitch for the summer and a 17 for fall duck hunting. This new motor no way would it turn that 17, and to get the max WOT RPM with this Etec I had to go down to a 13” (13-1/4x13) .... she’s just now now heavy and the hull isn’t even fun to run anymore.
do these 4 blades have extra stern lift vs a 3 blade bc that’s what it seems like.
hopefully someone out there has been through this already and can shed some light on this subject.
Thank you.
I was running 3 blade SS on the Merc and now running 4 blade SS Evinrude Rogue and no matter how much I trim, I’m wetting way too much of the hull. I’ve experimented with all motor heights and it works best slammed down to transom. That ol Optimax I could trim that hull up and just ride on the transom or trim down and wet all I needed and it was fantastic but this new engine and prop combo has me baffled.
I’m aware the difference in gear ratios between the Merc and evi bc I was running a 3 blade 19” pitch for the summer and a 17 for fall duck hunting. This new motor no way would it turn that 17, and to get the max WOT RPM with this Etec I had to go down to a 13” (13-1/4x13) .... she’s just now now heavy and the hull isn’t even fun to run anymore.
do these 4 blades have extra stern lift vs a 3 blade bc that’s what it seems like.
hopefully someone out there has been through this already and can shed some light on this subject.
Thank you.
