Motor height and performance

[puhlw]

Running a lund prov 1975 with a 225 verado. Considering raising the motor a couple holes as it seems on the low side. I know from past experience this will help with top end and efficiency. My question is am I giving up rough water handling? More chance of porpoising, ect? Boat rides pretty good now but if there are no downsides i might as well go up a hole or two.

I should also note because of the software limits I can not trim this motor high enough to lose grip. (Going straight anyhow)

Running an 19p enertia prop but also have a rev4. Rpms a about 6000 with a decent load. wouldnt mind being a little higher.

Thanks in advance

[Real L]

Where is it now and how fast are you going ?

[puhlw]

Does about 52 empty of full. Cavitation plate is about 1” above the bottom of the boat.

[mdtritn21]

My nephew has a 21' Pro Bass model with a 250 pro xs and a hydraulic jack plate and raising it does not seem to effect speed much maybe 1 mph. Without a plate raising yours won't make any difference and being that its an aluminum hull with no pad will be a waste of time. If you raise it you you'll probably start having prop slip or ot will porpoise and lose speed.

[Real L]

I had a Princecraft Xpedition 200 ( not the same boat as you but similar - no pad - V bottom) with a Verado 250 Pro. Motor was in third hole from the top (middle hole), no jackplate. Boat did not purpoise. At the time I was running a Lazer II - 21 P. Never lost grip - very fast on plane - running at 6100 RPM - top speed 62 mph. Light boat with a side console.

[Jordan3206]

In my little experience, aluminum boats typically stop responding to engine height fast. However benefits of running shallower can be appealing. You could probably come up two holes with the 4 blade and not have issues. Water pressure gauge is a must. You would probably come out of the water faster. Stay on plane at lower speeds and probably maintain same top speed. You'll want the 4 blade for grip in hard corners and rough water.