Hi guys,
Just looking for suggested prop sizes. I'd like to look around for props this winter,I have not run it so, I have no baseline. I just finished the boat, it's a 1975 and it has a fresh 76 1150 Merc so, that's the flywheel rating lower power 1150. Motor has PT. I would like it to spin in the 5400 to 5600 range, me alone in the boat, the in lines are better off spinning higher than lower.
I'm thinking 19 to 21 pitch range for a simple cupped three blade or possibly something with bow lift so maybe a Laser? Those would be in 20 to 22 range. Not sure if torque steer gets bad with the lasers or any prop with rake as the motor is on the transom top, not raised. I kept the boat original so it has the single push pull bolted to the motor well, it's 100% good but not sure I'd want to load that arrangement up with lots of torque steer. It also seems these boats get chine walking once you try to get much bow lift by over trimming so that may mean you can't really take advantage of a prop that lifts the bow. I drive fast v pad bottoms so I can handle chine walk but, concerned that would start working the steering a lot. I want to keep the boat original so I wouldn't upgrade to a dual cable or hydraulic.
Anyways, I figure this boat motor should be high 40's maybe low 50's with right prop so looking for some input, comparisons, experience. I'm not looking to get the last mph, got other boats for that, just a good balance and not much torque steer. The boat is too cool just the way it is.
Thanks,
Randy