Pontoon Boat & Deck Boat Forum

I'm in the market for a honda 50hp prop, thinking of stainless steel.

I thought there was a thread on this in the past but couldn't find it.

Your wisdom is appreciated.

hows 'bout something like this?
http://www.propline.com/Select-Boat-Pro ... /35_40.htm

Hi, I have a 50 honda and run a 12.25 x 9 aluminum and can only get 4700 rpm and 19 mph gps. I have changed the tach and still get same results. Have tried four blade and three bladed props with less rpm results. I actually lost almost half a blade on prop this past weekend and just ordered a piranha prop. What are you other 50 hp honda guys using and what kind of speed and rpms do you get.
Thanks
Neal

Seems to me I was getting 5000 rpm's and 17 mph (gps) with mine. I'll hopefully confirm that this weekend.

Other than looking pretty, putting a SS prop on you 50 is not going to get you any better performance than a aluminum. You see, an aluminum prop will “flatten out” when placed under load. Thus, an aluminum prop that has a pitch of 13 will flatten out to say a 12.5 under wot. SS props on the other hand don’t flatten at all under load thus, you get better hole shots and top end. The load from a 50 HP motor simply isn’t enough to flatten a aluminum prop at wot so your performance won’t really improve. Usually the 90 hp motors and above are the motors that enjoy a performance boost from a SS prop.

Ya, with a 50 hp motor, just stick with an Aluminum prop.
I wouldnt worry about going SS until at 150hp or more...

Also..

SS Prop -> $600
Aluminum Prop -> $100

Nuff said..

Aluminum pops will not transmit as much shock into the motor as a SS prop. If you hit something hard the aluminum will bend where the SS wont, might save some wear and tear on the lower unit and power head. You can buy a second aluminum prop, prop nut kit and floating prop wrench with money left over compared to SS. You can repair a lot of aluminum props at $40 to $55 a job for the cost of major repairs. Just something to consider if you boat in an area with underwater obstructions.

Thanks guys, thought I had heard something about a 50 being to small fot the SS prop, now it's been confirmed.

Thats like going from a wood paddle to aluminum