- Joined
- Sep 27, 2010
- Messages
- 158
- Reaction score
- 5
- Points
- 18
- Location
- Daytona Bch Florida
- Model
- Marlin
I just repowered my 2005 Marlin with Yamaha F300s. I had a set of merc rev 4 s 15 diameter 17 pitch but can't use the rev 4 with the new yamahas. We tried a set of 4 blade turbos 14.5 diameter. 19 pich 5400 rpms max and 15 diameter 19 pich 3 blades with max rpm 5300. With the 15 diameter 19 pitch 3 blades I was able to get to 5900 rpms with my f250s. The motors are brand new and I know breaking them in I should get a few more rpms but can't see 400/min . On the grady white website their specs are with a 15.5 diameter and 17 pitch 3 blade. I really want a 4 blade prop for the midrange fuel economy running in the crap I'm usually fishing in. Using the standard pitch formula when going from a 3 blade to a 4 blade you keep the same diameter and drop the pitch by 2. This would give me 15.5 diameter with a 15 pitch.
My question is, you guys with Marlins with f300s, what props are you using, what's your max rpm, what hole are your motors mounted in and how's your economy?
Thanks
Nick
My question is, you guys with Marlins with f300s, what props are you using, what's your max rpm, what hole are your motors mounted in and how's your economy?
Thanks
Nick