dropping prop pitch...again 89 force 125hp

[sportrider]

I'm currently shopping for a new prop I currently am running a 15" pitch 3 blade. at WOT when the boats fully loaded down I'm pulling 4500 rpm and once trimmed out hitting about 26mph on top. by myself lightly loaded (fishing gear and me 1/3 tank of fuel) it'll pull 5400 and top out at 34mph. I used to go out solo a lot, anymore everyone goes so that means ice chests more people more gear more running time so more fuel. I'm debating between a 13"pitch or an 11" pitch. I know if solo I'd over rev but I can alway throw the 15" I have back on for that. I'm thinking the 11" just because I'd hate to buy a 13" and still have meager performance and end up dropping pitch again anyways.what do you guys think? I'm thinking of going with a 4 blade this time as well.

 

[jerryjerry05]

The best bet is contact Michigan propeller and ask there.
​What kind of boat?
Weight and length?

​Not sure your gonna find a 4blade for a Force???
Also not sure about an 11p either??

 

[SkiDad]

michigan used to make a 14x13p - but I think you need to look on ebay for that if you want one

 

[sportrider]

http://boatpropellers.iboats.com/For...t_id=973249227

http://boatpropellers.iboats.com/For...t_id=973249227
these are the ones I'm looking at. not sure on the overall weight of the boat, it's an 89 Maxum bowrider 19.5ft bow to transom.
my force is the single exhaust but seems everyone says the dual exhaust props will work. both are 15 spline shaft.

 

[SkiDad]

yes they will work but the hub kit you need with it has a slightly different tapper to thrust washer - you need to use the that thrust washer or you won't have enough threads to tighten it down (at least my experience). It's not an exact fit but should work. you also need to take off the plastic ring from the prop before you slide it into the gear case.