311 prop help..
12-25-2015 | 10:51 AM
#21
Registered
Joined: Mar 2012
Posts: 57
Likes: 0
From: Canandaigua, NY
Kevlar382 is correct on the RPM's and speed as I owned his old 88 311. Another friend of mine with same boat ran 24p hydromotives 4blades. Slower top end speeds but better cruising speed. I still have the 25's Mirage non plus and thinking about selling them as I sold the boat. Keep them as a spares after I re-powered the boat.
12-27-2015 | 08:22 AM
#22
Registered
Joined: Sep 2008
Posts: 264
Likes: 9
From: Holland MI
Kevlar382 is correct on the RPM's and speed as I owned his old 88 311. Another friend of mine with same boat ran 24p hydromotives 4blades. Slower top end speeds but better cruising speed. I still have the 25's Mirage non plus and thinking about selling them as I sold the boat. Keep them as a spares after I re-powered the boat.
01-05-2016 | 04:07 PM
#23
Thread Starter
Registered
Joined: Aug 2007
Posts: 1,038
Likes: 2
From: St.Louis MO
I've had two 311s and if you are turning your props out like it came from the factory, I found that 4 blades picked the back end up a little to much and made them bow steer. Your X dimension is low enough that you shouldn't need a 4 blade. Both of mine came with 23s and I changed them to Lab 25s. Sorry it's been a long time time, but if I remember right my 1988 with 330s ran 66 at 4800 rpm. They both had 1.5 Bravos. If you want to run 4 blades, you might want to try turning them in.
