arnaldomesa

i have a 1989 scarab 31 with twin 496 ho.
can someone give me some advise as to which pitch prop i should use??

bbladesprops

Depending on the ultimate goals, different props and geometry are options.

We can supply you with test props in 3,4 and 5 blades from multiple manufacturers.

A medium bow lifter getting you to the max rpm at the largest pitch is the best route. Also, rotation and the current performance numbers should be gone through to get the best set up.

Brett

Too Stroked

The more detailed baseline information you can give somebody like Brett, the more they can help you. For instance, what props are on the boat right now? What Drives? Where are the drives mounted in relation to each other and to the planning bottom of the boat? What RPM are you running at WOT and with how much trim? What are you looking to change with a new set of props?

I provided BBlades with all of the above information and more. For instance, I included pictures of the boat out of the water showing where everything was mounted. I measured and recorded all of the critical dimensions. I also provided several shots of the boat at speed to show how it ran. With all of that information, they were able to meet all of my needs. They also did it quickly and at a reasonable price.