Hook1
Well-known member
I have a 90HP Mercury 2 Stroke on my boat. Its a real lead sled. I am running a 3 blade aluminum prop and its a 13 x 21 pitch. I still get a good hole shot and all and at 4600 rpms on plane and trimmed out it will run 38 to 40 mph on GPS. The thing is if I go WOT trimmed out at 5200 rpms I'm only improved to 41 mph on GPS. My question is would a stainless prop help on the rest of the top end and not just waste the extra rpms and gas? I think I'm done hitting trouble areas and going through the aluminum props. If this will help get a little more from my motor than I will be in the market for maybe a used stainless prop. I cant afford a new one right now. Maybe someone knows where I can try one out before buying or something like that? Thanks in advance.