I have a 2007 eliminator daytona with speedmaster 2 in shorties. First year i ran it had not problems. about 18 months or so i started racking props. First i thought it was the labing. So i ran stock out of the box merc 4 blades.. they cracked also. boat seems to be running fine.. spoke with Brett from B blades. He is as confused as i am. I have cracked 6 props in a year and half, Some labed some not. Any help would be greatly appreciated.

Bravo 1 props?????

They are not really designed to be surface piercing props and if they are piercing the water like a surface drive prop, then this could be causing your issues. I still think 6 cracked props in 18 months is extreme though. Maybe check the run out on the prop shaft.

What kind of power?

Like Griff said, you surface them long enough with some higher HP setups and you will lose blades.

6 cracked props is extreme though.

525s the first year we had it no problems. but all of a sudden cracks!!! i have no clue

props are running to high. how does it take off? long time to get up?

not real bad depends on how many people and fuel. and im gonna lower them an inch next summer. but where im lost the first year has no problems

I would think that if your drives are that high, you should be running the clever style Q4 hydromotive props. Maybe you just got lucky your first year and did not break a prop. I think Hydromotive also has a special heat treading process that makes the steal stronger. I think you have to pay more for it, but I'm not sure. Go to their website and check it out.

I pitched a Hydromotive blade off a P5. They are more designed to surface slightly, but it is still a losing battle.

We cracked a 4 props on a 300x single outboard set up before switching to a Hydromotive Q4, ran for years without cracking. Still have a 26" if you are interested, the boat and engine are long gone.

Dd

I have 2 26 pitch clever style Hydromotive Q4 props that are just sitting in my garage if anyone is interested in them. They are for the 1" drive shaft, not the large diameter drive shaft.