Can the b-3 lower be swapped with a b-1?

[Shabah180]

Been a pretty good season so far, only tracking down a couple issues with the new motor build, but still a good season.

Still have a lot of testing to do and never know about the pros but will try to remember if I get to that point. Thanks

Which pitch works best with your set up? Im curious as to who would need a 30p on a bravo 3 haha!

 

[HT32BSX115]

You can get B3 prop sets for $500 easy, just need to look. I have 5 sets, picked them up for testing and during repower.

Yeah. I did essentially the same thing. I have 1 26p set, 1 24p 3-blade set and 1 3x4 blade 24p set!

I can run the 26p props on my 21ft Four Winns and get 57mph at 4600 RPM.

I toyed with rebuilding/stroking my 454 and making a LOT more HP. I was going to go to 30p props if I did!

You oughta be able to run at least 26's or 28's maybe even 30's.

Time to reveal some data!

What is your WOT RPM, (trimmed for MAX) speed(GPS) and prop-pitch?

 

[alldodge]

I have 3-blade 22, 22 cupped, 24 and 26, also 4x4-blade at 24 pitch.

Since you asked Shabah I'll provide some numbers and info on your thread.
Prior motor was 415HP and turned a 3x3 set of 24 pitch at 5200 rom achieving 46 MPH.

Current about 525HP turning a 4x4-24 pitch, or 3x3-26 pitch the WOT is 47 mph at 5200 rpm. I have some serious slip going on and the trim is almost flat. If I raise the trim much the cav plate turns into and anchor. Working with a guy in AZ to get him some numbers on both props with vids so he can see what's going on. Option plnas are to take the lower unit and cut the cav plate off, also cut down the props so there is less area. This guy runs B3's around 100 mph

 

[HT32BSX115]

I have 3-blade 22, 22 cupped, 24 and 26, also 4x4-blade at 24 pitch.

On what boat? Are the 4x4 props worth it?

 

[alldodge]

On what boat? Are the 4x4 props worth it?

The 4x4 is on the Formula (10K boat). I'm leaning toward the 4x4 not being the way to go. The 4x4 gives you more lift, and with my boat I'm leaning toward I dodn't need anymore lift. The trim gets real touchy from porpoise to plow, and it really doesn't take much to change the attitude. The 3x3 makes it not as bad. As before I need to take some vids with the go-pro and pass them to the prop guy.

 

[Shabah180]

Yeah. I did essentially the same thing. I have 1 26p set, 1 24p 3-blade set and 1 3x4 blade 24p set!

I can run the 26p props on my 21ft Four Winns and get 57mph at 4600 RPM.

I toyed with rebuilding/stroking my 454 and making a LOT more HP. I was going to go to 30p props if I did!

You oughta be able to run at least 26's or 28's maybe even 30's.

Time to reveal some data!

What is your WOT RPM, (trimmed for MAX) speed(GPS) and prop-pitch?

I hit 64 mph once, first run, my butt pukered a bit, but im making 60 mph wot, hits 5000 rpm running light, and with 3 people aboard. The 350 has no problem with 1 person or 3. Makes zero difference. Im running a 26p 3x3 and tossed the idea of getting a four by four from hills marine.. Or a new 4x3 27p.
But lots of experienced guys on here said im right where i want to be. Zero prop slip, etc. Due to the weight of a boat a 350 is normally in, i think that changes the game when it comes to props. Id like to try a 27 and see what happens.
I can tell its propped for hole shot and acceleration. From a standin start i can lift the entire hull from the water, and it splashes down on plane, then comes rhe mid range acceleration, thats when the passenger looks over and gets scared. Lmao! Its defnitly not the biggest motor but power to weight, yes, overkill.

Im going to do some runs here im at the lake now. Video and you tube ill let u guys know,
I have an issue here my drive lube is vanishing!!!! Its not milky, and no signs of oil spill in the water. Keeps going down, going to fill it and keep my eye on it...


All dodge!!!! Can i run with my flame arrestoe cover off to see if all my jets are firing at wot???

 

[thumpar]

If the drive lube was recently changed it is normal for it to go down a little because of air bubble working their way out. If it is constantly doing it the lube is going somewhere.

 

[alldodge]

Yes, you can take the arrestor off without issue, so long as nothing gets dropped or sucked in

Agree with Thumpar, When filling the drive its best to do it off the boat. Fill it all the way, install both plugs, then lay the drive over at an angle with top vent hole up. Then remove top plug and pour lube into the top until full, then install drive.

It will fill with the bottle but takes longer. If it keeps going down check the prop seals, they have been known to leak.

 

[Shabah180]

Yes, you can take the arrestor off without issue, so long as nothing gets dropped or sucked in

Agree with Thumpar, When filling the drive its best to do it off the boat. Fill it all the way, install both plugs, then lay the drive over at an angle with top vent hole up. Then remove top plug and pour lube into the top until full, then install drive.

It will fill with the bottle but takes longer. If it keeps going down check the prop seals, they have been known to leak.

Thanks all dodge and thumpar! Just topped it off. Im uploading a video on you tube i got stupid and pulsed the throttle doing 30mph, almost flipped the rig. Ill let u know when its done publishing

 

[HT32BSX115]

I hit 64 mph once, first run, my butt pukered a bit, but im making 60 mph wot, hits 5000 rpm running light, and with 3 people aboard.

I'll bet your holeshot is nothing short of SCARY!!

You could probably get away with 28p props if you're turning 5000 RPM!

I am not sold on the 4x3 props. I can't really tell any difference between the 3x3 and 4x3 (24p) propsets.

 

[Shabah180]

So my ignition module went... Go a new one she fired good, all a sudden, no power. Turned the egine off for the tubers to come in and all is dead,,,,, except pitch, i can trim up and down but otherwise she wont turn over, no dash function. Any ideas?????
Thanks guys

 

[thumpar]

Check battery connections. The trim uses its own separate wire from the battery.

 

[Shabah180]

Thanks thumpar, a 20am fuse blew, and literally killed the whole boat, found the mercathode though! Lol replaced the fuse, it fired up, shut it down to try again, and it seemed the battery is dead now. Lol going to clean up connections on the posts and try again, make sure its getting a charge.

 

[Shabah180]

What propset are you running? 28 or 30? A boat that light with a 5.7 and 2.20:1 B3 could probably get away with 30p props!

It must come out of the hole like a hotrod ski boat!

(Although I quoted you, I am really asking Shabah180 this question.....)

3x3 26's im trying to see if i can get photobucket like bondo has told me, so i can post images. But im trying to do it on an i phone.

 

[HT32BSX115]

3x3 26's im trying to see if i can get photobucket like bondo has told me, so i can post images. But im trying to do it on an i phone.

I use Photobucket for all photo posting. I also put it on my Android but I know they have it for the iPhone.

Once you have it set up, it's pretty easy to post pictures to any message forum (or email for that matter) by linking to the photo.

 

[Shabah180]

[No message]

 

[Shabah180]

You should have met "those strangers" before you bought a 180 with a B iii ! Only a Mariah!

Its a 98' they built them well, it was a toss up between a crownline with the 4.3 ( newer) or the mariah which had the upgrades ( motor, outdrive, smart tabs) and less hours than the crown and the crownline was newer. The mariah was taken care of, looks brand new. I really like crowlines ( especially the ones with the sport package)

 

[Shabah180]

I would be surprised that they would install a 2.20:1 Bravo III drive though. In a boat that small, a 1.81:1 would probably be about right!

Wot is 60- 64 depending on conditions. Mostly 60 seems to be right. If theres no wind she wont chine walk, bit of wind and it will teeter a bit. 64 mph and i was at 5000 rpm running light. Its all a learning curve for me! Haha!

So irregardless of the ratio, the set up is pretty spot on, according to the prop slip calculator it has almost zero percent.

 

[jkust]

I've got a B1 with my 5.7 MPI where most bought either the B3 or the Alpha on my boat. Just came from an Alpha for 8 years or so with my prior boat and don't notice any difference with a B1. The alpha of course handles up to 300 horses which is what the 5.7 MPI has so I suppose you are riding on the edge with an alpha. I guess I'm happy the guy who I bought the boat from didn't select the alpha but wouldv'e rather had he purchased the B3. My B1 is a 1.50 ratio.
I see the B3 guys are a lot better at the dock when I'm pulling up to one of the bars on our lake.

 

[thumpar]

I've got a B1 with my 5.7 MPI where most bought either the B3 or the Alpha on my boat. Just came from an Alpha for 8 years or so with my prior boat and don't notice any difference with a B1. The alpha of course handles up to 300 horses which is what the 5.7 MPI has so I suppose you are riding on the edge with an alpha. I guess I'm happy the guy who I bought the boat from didn't select the alpha but wouldv'e rather had he purchased the B3. My B1 is a 1.50 ratio.
I see the B3 guys are a lot better at the dock when I'm pulling up to one of the bars on our lake.

I came from an alpha to a b1. The one thing I like is the shifting. Yea, a b3 would have been nice but don't want another alpha.