30 prop for top speed
12-14-2020, 11:42 AM
#1
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30 prop for top speed
Hi, working with a 30 Activator. Motor makes [email protected] , 958 @4700 rpm tq.
1.5 imco xcs upper and lower with a 34p bravo 4blade untouched. It runs 100mph @ 5300 and 108mph @ 5700rpm has been the best. The motor is just about out of steam in the upper 5k rpm range. But more import the boat feels to sketchy to stay in it past that. I have tried a labbed 32 bravo 4 blade and nearly puts it on the rev limiter when you punch it. Also have a 5 blade 32 hearing done by b-blades and it leans the boat over to the port side bad and chines walks really bad with the hearing.
Boat behaves well between 60-90 after that its a bit of a train wreck. Chines walks bad and wants to torque over to the left without dragging the port tab.
I see a few similar powered 30's that have claimed big numbers 115mph ish. Anyone have any props that may get some more mph out of this setup?
1.5 imco xcs upper and lower with a 34p bravo 4blade untouched. It runs 100mph @ 5300 and 108mph @ 5700rpm has been the best. The motor is just about out of steam in the upper 5k rpm range. But more import the boat feels to sketchy to stay in it past that. I have tried a labbed 32 bravo 4 blade and nearly puts it on the rev limiter when you punch it. Also have a 5 blade 32 hearing done by b-blades and it leans the boat over to the port side bad and chines walks really bad with the hearing.
Boat behaves well between 60-90 after that its a bit of a train wreck. Chines walks bad and wants to torque over to the left without dragging the port tab.
I see a few similar powered 30's that have claimed big numbers 115mph ish. Anyone have any props that may get some more mph out of this setup?
03-02-2021, 12:37 PM
#4
Commercial Member
Originally Posted by gr8evo
Hi, working with a 30 Activator. Motor makes [email protected] , 958 @4700 rpm tq.
1.5 imco xcs upper and lower with a 34p bravo 4blade untouched. It runs 100mph @ 5300 and 108mph @ 5700rpm has been the best. The motor is just about out of steam in the upper 5k rpm range. But more import the boat feels to sketchy to stay in it past that. I have tried a labbed 32 bravo 4 blade and nearly puts it on the rev limiter when you punch it. Also have a 5 blade 32 hearing done by b-blades and it leans the boat over to the port side bad and chines walks really bad with the hearing.
Boat behaves well between 60-90 after that its a bit of a train wreck. Chines walks bad and wants to torque over to the left without dragging the port tab.
I see a few similar powered 30's that have claimed big numbers 115mph ish. Anyone have any props that may get some more mph out of this setup?
1.5 imco xcs upper and lower with a 34p bravo 4blade untouched. It runs 100mph @ 5300 and 108mph @ 5700rpm has been the best. The motor is just about out of steam in the upper 5k rpm range. But more import the boat feels to sketchy to stay in it past that. I have tried a labbed 32 bravo 4 blade and nearly puts it on the rev limiter when you punch it. Also have a 5 blade 32 hearing done by b-blades and it leans the boat over to the port side bad and chines walks really bad with the hearing.
Boat behaves well between 60-90 after that its a bit of a train wreck. Chines walks bad and wants to torque over to the left without dragging the port tab.
I see a few similar powered 30's that have claimed big numbers 115mph ish. Anyone have any props that may get some more mph out of this setup?
Last edited by rageman28; 03-02-2021 at 12:39 PM.
04-11-2021, 07:20 AM
#5
Platinum Member
Originally Posted by rageman28
We found the 34 Pitch Bravo 1 works the best. The hydromotive P5X works good at lifting the bow. Haven't had much success with the B-Blades. When the drive is all the way in, the boat will lean to the left. The goal is to get the drive level or a little positive trim. Which 30' is this? Are you on Long Island?
