ledzep

Hello, I am just finishing up my boat, and I dont know as much about props as i would like to . I looked at the prop balancing and sharpening post and got alot from it. But i could not find anything that would work best for a O.S CVR-MX. Right now i have a Octura X438 and i works good but, i have herd that The X480 would work better for this engine. I just want to max out this boat as much as i can. also on the sharpening issue should i polish and sharpen both sises of the prop, like the face and the concave side?

Thank you

Ron Olson

My Feedback: (1)

I hope that's a typo! Maybe an X-440.
You only sharpen and balance on one side only.
Polishing a prop is only icing on the cake. Some say not to polish them but I can't see having a good looking boat and a nasty looking prop on it.

ledzep

No, it is not a typo it says X438. I know i could not figure it out either.

piper_chuck

My Feedback: (12)

There's a thread with links to sharpening and balancing that Ron was nice enough to make stick to the top of this forum. It includes lots of pictures and text on how to do this. I've read several reports that say polishing to a mirror finish makes for a slower prop than a slightly satin finish from fine sandpaper.

Ron Olson

My Feedback: (1)

When the people at CMDi Racing sharpen and balance props, they leave the face of the prop slightly rough with scratch marks from their linisher but can be done with a file also. Andy Brown claims that the rough suface helps to aerate the prop enough to prevent stiction. I hqad them do up 4 props last winter for my boats and once I saw how they appeared I found out that I could somewhat copy their style with a file.
A linisher is an old-school machine and I never saw one until I was watching one of those Chopper shows where they were custom making a sissy bar.

ledzep

oh ok, so the face of the prop should have that dirty look and the concave side should be wet sanded.

Thanks yall.

Ron Olson

My Feedback: (1)

You can polish it as I do. I don't like ugly props on my boats. The people that don't brighten them up only gain just a little more speed, insignificant to the rest of us that don't want that 1/100th MPH. Besides, it is one of the few things that my son will do on the boats. He tells me that he is working on his own "secret" formula for prop polish.
Some people try to get overly technical with their props like trying to index them.