Posts: 3508
Location: Elk River, Minnesota | Hi again,
if you are getting 5100 with your original prop, in my humble opinion you are over-propped by about 3 inches or so in pitch. If your motor calls for up to 5800, it is best to be very close to that value to let the motor really be able to turn well in all conditions. I am assuming that when you ran the motor you were loaded as you normally are for most situations....
As for the tongue in Cheek, that was for the prop not blowing out at the highest motor setting on the boat. Solas makes a great prop. I had one on my old boat and I carry one as a spare on my current boat. Ran it a few months ago and it performed just as solid as my ballistic steel prop, with the same pitch.
The solas prop is fully cupped along the trailing edge, and is made using a process called squeeze casting, which flexes less than a normal cast aluminum prop. I would definitely say it is worthwhile for a spare. I would say with your spare, drop down to a 19 pitch and that should put you right around 5800 with your spare prop. There will be a loss of speed, but your hole-shot will be dynamite.
I would also recommend at some point trying an 19 pitch 4 blade steel prop as well....it will get you roughly to 5600 rpms or so, with the potential of being more since there is a limiting factor to the motor in how much it can turn. When you reach the limit of the motor with the prop, the RPM's drop dramatically.
Steve
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