Originally Posted by endeavour32 (Post 4731528)

The best thing to do, is just buy some different props and see where it puts you. Every Inch of pitch will reduce your RPMs 200. If you gain 1000 RPMs as Griff said, there isn't a Bravo prop steep enough, so you may need to re-gear your drive. However, I would test out some steeper props first. Have you called Airmarine in Chicago, to see if they have set of 34-36 B1s you can try? Their test program is way cheaper than BBlades, and you don't have to ship anything. However with the lockdown, they may not be open.

Originally Posted by Rookie (Post 4731635)

I had a long written post, then I re-read that they were dyno'd at Dicks. That dyno is a little stingy. At this point were are just dyno racing. I know that the boat has always ran 88 mph with the Hawk 525's (I believe they are closer to 540 hp) The best advice as already stated is to start where you left off. I think you'll only see a 300-400 RPM difference and then work the props from there.

Originally Posted by Rookie (Post 4731635)

I had a long written post, then I re-read that they were dyno'd at Dicks. That dyno is a little stingy. At this point were are just dyno racing. I know that the boat has always ran 88 mph with the Hawk 525's (I believe they are closer to 540 hp) The best advice as already stated is to start where you left off. I think you'll only see a 300-400 RPM difference and then work the props from there.

Originally Posted by RBeyer (Post 4731647)

Even if that is true based on where they make power now 5300 will take them to at least a high end 32 to probably a 34

Originally Posted by Griff (Post 4731739)

Keep in mind that 34 Bravo's perform somewhat differently that other Bravo pitches of Bravo props. BBlades had posted the specifics in older threads. That is not saying they would not work fine on your boat though.
First thing I would do is run your props and then see what you can find to borrow in the 32-36 range locally for testing. Maybe even look for 30-32 5 blades to try. Then use BBlades test program if needed.

Originally Posted by RBeyer (Post 4731781)

I'm only assuming because of more surface area in the water that a 5 blade will put more stress on the drives. Thoughts?

Originally Posted by F-2 Speedy (Post 4731782)

yes it will, do you know what the boat weighs fully dressed ?

Originally Posted by RBeyer (Post 4731781)

I'm only assuming because of more surface area in the water that a 5 blade will put more stress on the drives. Thoughts?

Originally Posted by Griff (Post 4731825)

Yes, but most of the stress is from re entry after leaving the water. You boat is not heavy at all, so it should be fine.