115 vs. 90

[funtooner]

Lady GT

if you go to the home page of PDB, top right at search... input TAP Fins
That info might help .

[rickdb1]

I don't know what the 90hp would do, but my 115hp easily lifts my 22' boat up on the strakes and it will run at 30mph. I am running a 13.75 by 15 prop at about 250' elevation. The elevation you run at will effect needed prop pitch, I need a longer prop because I sometime exceed max rpm.

Glenn

Glenn, do you have the 26" logs and the NV Performance strakes?

[WaterLogged]

Yes, yes I do! They work out just great for my purposes.

Glenn

[Moser]

The NV strakes were one of the best performance features I ever saw. The side by side, one with, one without videos they put out were the best sales tool ever. I always wondered why Tracker stopped them after only a few years.

[LSU Engineer]

Not to get too technical here, but the dealer who told you there is no difference was wrong. Generally speaking, power requirement goes up with the cube of speed. So conversely, speed increases by the cube root of the power ratio. A 115 will probably yield about 9% more speed, or maybe 3 mph.

[funtooner]

Well for years on here we see the talk.
Now lets show the issue ...

Side Flow Resistance , Velocity off the flow force is applied.
When there was a 40 HP not much flow force coming from it. ( More talk than fact )
Look where we are NOW.... ! 2021!!!
T.A.P. Fins just got there 1st.
90\ 115, 150 or 600 HP side Flow Force is there.