Quote:
Originally Posted by GillV20
On the motor though there is already a 4 bladed prop, I have not gotten the numbers off of it yet, but I really do not think the 4 blade is going to help.
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What numbers are you getting from the existing prop...

...if it is getting the max rpms your motor's specs allow, and not causing any difficulties, you may already have the right one...
Post up some numbers rpms/speed @ increasing rpm range 2000, 2500, 3000, 3500, up to mfg's max rpm for us if you can...top down, light load, slick water, etc...
If you haven't gone through this test w/existing, you may not need to change props...