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Old 09-13-2020, 12:44 AM   #1
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Default HELP - 2005 SR3 1800 - came with a 48-831912 24P - ridiculous

Picked this boat up from a friend. He never used it.

2005 SR3 1800 - 4.3 V6

The prop it came with is a


BRAVO 1 - STAINLESS - 48-831912 24P



It's ridiculous. It literally takes 3 mins to get the front end of this boat to come down.

Lake I'm on is pretty small so I'm looking for a prop that gets me up on plane quickly. Don't care as much for the top end on this pretty small lake. Just want to get up there quick.

WHAT DO YOU GUYS RECOMMEND? WHAT YOU USING OUT THERE?
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Old 09-13-2020, 02:16 AM   #2
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According to Mercury Propeller Selector its saying the following: ANY THOUGHTS?

RECOMMENDED PROPELLER FAMILIES (3) Results
Propeller Material Blades Diameter Pitch Rotation Part #
Black Max® Mercalloy 3 14 23 H 82834A45

Revolution 4® Stainless Steel 4 14.625 23 RH 857030A46

SpitFire® Mercalloy 4 14 23 RH 8M0084497
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Old 09-13-2020, 04:47 AM   #3
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Bravo 1 on a 1800 with a 4.3? Are you certain it’s not an Alpha 1? A 24” pitch is too much for a 4.3 IMO 19-21 would be a better option but others with a similar boat will chime in.
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Old 09-13-2020, 11:53 AM   #4
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A 19P 3 bladed aluminum prop will give you a dramatic improvement on acceleration and time to plane. Be sure to get a new hub kit also.
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Old 09-19-2020, 03:01 PM   #5
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I agree with the above. Mine had a 21" pitch, three blade and she could not get out of her own way. I went with 19" four blade and she pulls like a tractor now. If I get another, I might go 19" and three blade to see if I get a few more rpm out of it. WOT is about 4400, top speed about 42mph. I cannot imagine 23" on that boat.
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Old 09-19-2020, 08:01 PM   #6
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Quote:
Originally Posted by The Pirate View Post
I agree with the above. Mine had a 21" pitch, three blade and she could not get out of her own way. I went with 19" four blade and she pulls like a tractor now. If I get another, I might go 19" and three blade to see if I get a few more rpm out of it. WOT is about 4400, top speed about 42mph. I cannot imagine 23" on that boat.

I've read that if you go from a 3 blade to a 4 blade you should drop a pitch

for example
3 blade - 19 pitch
4 blade - 18 pitch

the only exception might be with the redesigned Mercury Spitfire 4 blade
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Old 09-19-2020, 08:01 PM   #7
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Quote:
Originally Posted by mmwjr View Post
Bravo 1 on a 1800 with a 4.3? Are you certain it’s not an Alpha 1? A 24” pitch is too much for a 4.3 IMO 19-21 would be a better option but others with a similar boat will chime in.
the prop is a BRAVO.. not the out drive
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