I'm glad to hear your P5X is working. There is more left there by having it custom tuned/blueprinted to your boat. Not taking anything away from Hydromotive (has anyone used them for blueprinting?), because I am sure they are familiar with the characteristics of their own props, but several of us have used Throttle UP with excellent results. They are well versed on tuning P5Xs for Nordics, and keep their information in a database (maybe Matt's head
).
You might still want to try a 1" spacer. Here's why. High X dimensions make all boats weight sensitive. With more weight in your boat (fuel/passengers/loaded cabin/porta potty/etc) you will run with more wetted surface, slowing your hull down.
With a little deeper (effective) X dimension, your propeller has more wetted blade area (why the 5 blade works better now) to lift the extra weight, freeing up the hull. You will probably be able to run 4 blades more efficiently too, and they are much less expensive and plentiful. In my case, my P5X doesn't seem to mind the extra 1" of depth, and the 4 blades work much better. It's always good to have a spare prop or 2 in the garage in case you damage your #1 wheel.
Your getting there
!
Congrats,
Steve
Platinum Member
