custom29scarab

Looking for some folks that have had success or experience with this setup. I have been breaking drives quite frequently and have been told that the low slip numbers achieved with these props are contributing to my issues. Has any one else had a similar experience. I am currently running them on a semi staggered 38 Fountain lightening with 575's and Teague chillers and a pulley reduction. I also have imco 2" shorties with 1:3.5 lowers turning 30p 6b herrings. Any input or experience with this setup would be greatly appreciated.

bobl

Had a customer with a similar problem on a new 35 Fountain with 525's. Kept throwing blades on Herring 6 blades and breaking Bravos. We added 1" drive spacers and switched to Maximus props. Only lost 1-2 MPH, planed a lot better and so far hasn't broken anything. Those aggressive drive heights are really tough on Bravos.

Bob Lloyd
Full Throttle Marine

custom29scarab

Bob,

Thanks that is great information and exactly the type of info that I am looking for. I have thrown two blades but they were both Bravo 1 4 blades that I lost a blade on. I could see how this would be related to the drive height as well. Thanks again for the info.

fastdonzi

No Bravo ever like being used as a surface drive, At high drive heights they Load/Unload too much (just going through regular wind chop) and the Torsion effect on those (relatively small) single vertical shaft drives is too much. Even compounded more with 6 blade props where blade area is high.

PatriYacht

???

Pokher Ace

Isnt that just for low oil level?

First Gun

iTrader: (3)

[QUOTE=custom29scarab;3952161]Looking for some folks that have had success or experience with this setup. I have been breaking drives quite frequently and have been told that the low slip numbers achieved with these props are contributing to my issues. Has any one else had a similar experience. I am currently running them on a semi staggered 38 Fountain lightening with 575's and Teague chillers and a pulley reduction. I also have imco 2" shorties with 1:3.5 lowers turning 30p 6b herrings. Any input or experience with this setup would be greatly appreciated.[/
Wondering what kinda slip numbers you are running ? Thx

custom29scarab

Well best I can figure for slip is around 9-11% But I am no expert on the subject. Just run 5300rpm apx at around 100-103 depending on temp and humidty. Does this help you in any way?First Gun

Back4More

Help is on the way....

First Gun

iTrader: (3)

Yes, tells me where the edge is most likely when running high x dim bravos thank you