Need Help on Prop Selection 1990 150 GT Johnson

[Alpinegold]

I was advised on good authority that my 4 blade Stainless Steel Prop on my 150 GT Pro Series Johnson motor is to much prop for my boat ( 19.2 ' Nitro ). I haven't owned the boat that long but have taken it on the lake once. It seems that it takes longer than I would have expected to plane up out of the hole. Once planed up the motor is a monster and runs super fast.

I'm not looking for anything special or over the top specs on a prop. Just looking for general purpose specs that the engine would run most efficiently.

Would appreciate any suggestions.

Alpinegold

 

[emdsapmgr]

Re: Need Help on Prop Selection 1990 150 GT Johnson

Hard to make any recommendations without knowing the current pitch of that 4 blade prop, and the max rpms that your engine will achieve at WOT when running it. That engine should be propped to run at 5500 at WOT.

 

[steelespike]

Re: Need Help on Prop Selection 1990 150 GT Johnson

We need you're prop size, lightly loaded wot rpm and gps speed.
Are you trimming down for hole shot?