2 sav I cut mine back with a hack saw and a file. Of course a plasma cutter would have been easier. Mine was hanging 3/8" below the keel, when I trimmed it back surprisingly both my intake suction housing # went up(top and bottom).Nope, no shoe.
My shit is bolt on
How do you trim back a loader.
This is the biggest problem with a delta bottom that I see. I realize they can be made to run 93 mph, but a lot of times it takes so much loader below the delta pad on a fast boat to make it load the pump that it can be dangerous on shut down. They can be made to work. It's just easier with the regular radiused jet bottom. I was not tryinig to knock anyone's boat because it had a delta pad; rather trying to explain the difference.That loader is way deep. Needs to be trimmed back.
I am of the mindset of "if it works, leave it alone", however to properly answer your question, some data logging would be in order, without intake pressure readings it is virtually impossible to say for sure whether or not you are at the optimum point...5/8" sounds deep to me, but 5MPH is huge IMHO...I have a Cole 20' SS with a delta pad bottom. When I installed a river racer style intake grate, I gained about 5 mph. My tip of blade hangs down 5/8 inches. That seemed kind of deep. My boat really likes the extra water. Should I trim this back? Looking along the angle iron edge it aims the water at the base of the shaft. Is that were it should be? One thing I did notice is that the loader is built for a intake for a v-bottom . Mine is flat between fins. The fingers of the loader sit slightly below the biting edge of the intake. Is that a problem? Boat rides nice.
ur hull is very similar to mine (79 brendela) cant give exact #'s from adding the droop due to a energizer kit at the same time after the jacuzzi wj seized. but the boat changed dramaticaly, i say go for it when u redue ur pump, at the least u will get a way better roost.I have one on my 18' 1983 Bahner. I guess that answers me about the droop. Would that make it ride better, gain a few mph?
The trick to making a delta pad to work is that you have to go down and get the water unlike a radiused keel bottom. The delta rides on top of the water and the radiused keel breaks thrugh the boundry layer of water and loads the pump. That is why you run the shoe slightly above the keel and with the delta you can run the shoe below the keel.