What Prop to Mount?

[rlbarkleyii]

Just got a classic project boat, a WINNER, Cougar 1972", 18 ft, deep V hull with chimes, with a Johnson 90' outboard mounted. While in storage someone stole the prop off the boat, need to get some idea as to what size and pitch to start with.
I plan on going to a four ear composite, so if I get the first prop in the ball park, I'll buy a second to fine tune performance.

Anyone able to give me some info on prop size for OEM prop for 18' boat would sure be helpful.

THANKS

 

[steelespike]

Re: What Prop to Mount?

If your sure its a 18' A wild stab in the dark a 15" pitch prop.If you look up a 15" Evinrude/Johnson
prop the diameter will follow. You will need a tach to be sure if the size is right.A 18' with a 90 seems underpowered.