SS Prop

[ozarker]

I have a 75hp Yamaha 2 stroke with an alumumuminumnum prop. It runs out at 5500 rpm. If I replace it with a like SS prop would the weight difference change the run out. Thanks Bill

[robert graham]

Assuming the same pitch and diameter, the RPM's difference should be negligible. Good Luck!

[99yam40]

I would look into it a little farther.
I have heard that the SS ones are thinner and are cupped a little.
This gives more speed with less resistance and less flex.
I believe they may or maynot recommend changing pitch some when going to SS
Read some of the prop web sites
Here is one, but I am sure there are lots of others
http://boatpropellers.iboats.com/pro...t_id=406044787