Need advice on prop size.

BroadHopper · 05-17-2010, 08:43 PM

I bought the Formula with a Michigan SS 21" 3 blade. The motor was on the rev limiter at full throttle. I was able to swap for a 23" Bravo 3 blade. I hit the rev limiter with light loads in the boat. I bought a 25" 3 blade and the boat tend to blow out the prop. It did not hit the rev limiter when it is running right. Later I bought a 24" 4 blade and I am happy. No blowouts even in hard turns. Vibration is a lot less and great holeshots. I was able to save another gallon per hour.

Can't find on the INTERNET the difference between Bravo and Mirage props. Someone says the Mirage is a cupped Bravo. My Bravos appeared to be cupped. My Bravo 4 blade appears to be cupped as well. When I get a chance I will attached pictures of the props.

05-17-2010, 08:43 PM	#8
BroadHopper Senior Member Join Date: Oct 2004 Location: Laconia NH Posts: 5,667 Thanks: 3,281 Thanked 1,132 Times in 814 Posts	What I find on the Formula I bought the Formula with a Michigan SS 21" 3 blade. The motor was on the rev limiter at full throttle. I was able to swap for a 23" Bravo 3 blade. I hit the rev limiter with light loads in the boat. I bought a 25" 3 blade and the boat tend to blow out the prop. It did not hit the rev limiter when it is running right. Later I bought a 24" 4 blade and I am happy. No blowouts even in hard turns. Vibration is a lot less and great holeshots. I was able to save another gallon per hour. Can't find on the INTERNET the difference between Bravo and Mirage props. Someone says the Mirage is a cupped Bravo. My Bravos appeared to be cupped. My Bravo 4 blade appears to be cupped as well. When I get a chance I will attached pictures of the props. __________________ Someday may never be an actual day. Last edited by BroadHopper; 05-19-2010 at 08:11 AM. Reason: spelling