Bravo Ratios
 

What is the difference (I know the gear ratio) between a 1:50 bravo and a 1:36 bravo? Performance top end low end? What?

Re: Bravo Ratios
 

Really the only reason to go to 1.36 is if you run out of prop wiht the 1.50. If you need much more then about a 32-34 pitch prop it's time to step up.

Re: Bravo Ratios
 

I respectfully disagree. Some hull, drive prop combinations will work better and get higher speeds with 1.36, some with 1.5, some with the 1.8's. My older formula 311 picked up 4-5 mph with the 1.36 gears and smaller pitch props. Theres also some talk that the 1.36 gears are stronger. Cant answer to that. I would break shafts.

Re: Bravo Ratios
 

There are some instances when a boat likes something diffrent, I was just explaining the reason that most people make the change.

Re: Bravo Ratios
 

I read somewhere that props with pitches in the low twenties are supposed to be the most efficient. Could be a reason to change gears-

Re: Bravo Ratios
 

Back in the old days, I was told by Merc that the the standard 3 blade Mirage at 25 ptich had the greatest efficiency. Dont know if that holds true anymore with all the improvements made in design and manufacturing. Heck, when I was involved in hydroplanes, we all used 2 blades.

Re: Bravo Ratios
 

I still run a 2 blade on my Hondo T-deck, I don't ever pull a skier with it though it's just for hot laps.