Originally Posted by Roy Smith
I have a 23" Yamaha pro plus S/S prop and whilst its good when we are i/4 tank and two people it just wont pull the rev on a cruise
the engine should rev to 6250 but we find it hard to get 5500 rpm
full tank and 4 people
My question is, as any one had there prop resized and are happy with it
i think i need to take it down to 21" as the cleaver (i think thats the right term )
is much larger than the standard prop
How much should it cost etc.
I have tried two prop specialists Steel Developments (rude, unhelpful and overpriced)
And propeller solutions http://www.propellersolutions.co.uk
Prop solutions were very helpful and did an excellent job on a repair that I had done.
You can reduce pitch and the price would be around £60 to have it done however I think the most you can change by is about 1". That would probably give you about another 100-150 RPM.
I imagine your Scorpion was probably rigged at the factory so I would have thought that the engine height will be correct as if it is too low this could also be costing you some top speed and RPM. Not sure what the best height is for a Yamaha / Scorpion, I imagine you would want the anti ventilation plate a couple of inches above the bottom of the transom.