boardjnky4
Crew-
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8 NeutralAbout boardjnky4
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Rank
Boot Juicer
Profile Information
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Gender
Male
Previous Fields
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Boat
Centurion Hurricane
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Prop Shaft Shim and Alignment
boardjnky4 replied to volzalum's topic in Centurion Boat Accessories, Electronics and Modifications
fantastic, thanks for the update! -
Prop Shaft Shim and Alignment
boardjnky4 replied to volzalum's topic in Centurion Boat Accessories, Electronics and Modifications
Since I'm stuck with the prop I have, I'm going to have it re-pitched to a 15.5x14x.105 at Nettles. -
Prop Shaft Shim and Alignment
boardjnky4 replied to volzalum's topic in Centurion Boat Accessories, Electronics and Modifications
OK that's a big difference from my 409/1.72:1 setup -
Prop Shaft Shim and Alignment
boardjnky4 replied to volzalum's topic in Centurion Boat Accessories, Electronics and Modifications
Almost never, it's just a data point to benchmark from. I was led to believe the RPM decrease would be significant. With the speed control constantly changing things, it would be impossible to measure a 50 rpm difference. Heck the difference in chop/wind at any given moment can change the rpm more than that. I guess I was just expecting too much. -
Prop Shaft Shim and Alignment
boardjnky4 replied to volzalum's topic in Centurion Boat Accessories, Electronics and Modifications
So I was eye'ing up the 15.5x15x.075 as well. That's just a really strange cup for a 15 pitch prop. What engine is in your boat? A PCM 6.0? Please let us know what your top speed and rpm end up being. -
Prop Shaft Shim and Alignment
boardjnky4 replied to volzalum's topic in Centurion Boat Accessories, Electronics and Modifications
right right. So I might need to shim my strut just 1/8 or 1/4 inch to get rid of that cavitation. I do run some lead in the bow that might be causing more cavitation than needed at empty ballast, top speed. However, I'm seeing same RPM while wakeboarding and wakesurfing. Also seeing no difference in fuel consumption (DIACOM confirmed). As such, doubt that weight in the rear will help. -
Prop Shaft Shim and Alignment
boardjnky4 replied to volzalum's topic in Centurion Boat Accessories, Electronics and Modifications
I have a 15.5 now with 5/8" clearance. I went from a 15x13x.105 to 15.5x13x.105 and I lost 2mph on top speed. Same RPM when surfing and wakeboarding. A bit curious as to how I lost top end and didn't drop RPM. Do you think that cavitation or slippage would due to clearance would cause that? Jim at Acme seemed to think it might be he couldn't put his finger on it. -
Prop Shaft Shim and Alignment
boardjnky4 replied to volzalum's topic in Centurion Boat Accessories, Electronics and Modifications
Nicely done! -
Prop Shaft Shim and Alignment
boardjnky4 replied to volzalum's topic in Centurion Boat Accessories, Electronics and Modifications
Get a chance to install it yet? -
Prop Shaft Shim and Alignment
boardjnky4 replied to volzalum's topic in Centurion Boat Accessories, Electronics and Modifications
I'm really interested in how this turns out. Not a Centurion owner anymore, but sincerely interested for my current boat. I believe I can already squeeze a 15.5" on my boat, so I really only need to gain .25-.5" to get a 16" on. Where did you order the plate? Somewhere local? Once concern I have is within the shaft log. How much clearance is required around the shaft for driveline flex? Is there any flex? -
It's definitely not an I/O Edit: Actually looks like it could have been in one section where you could see the boat. Really rare for boats that large to not be inboards though.
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ANNOUNCEMENT: Official 2016 Supreme Boats S211 Model Details and Photos
boardjnky4 replied to CrewAdmin's topic in News From Supreme Boats and Dealers!
There is no way the interior of that boat is as roomy as an A20.- 65 replies
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- Supreme
- SurfSupreme
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I'm running a PPI 600.2 for the 6.5" HLCDs
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I have the smaller 6" speakers on my Axis and like them.
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Help me plan a new ballast system? Or not?
boardjnky4 replied to Stretch's topic in Centurion Boat Accessories, Electronics and Modifications
I don't think Aerator pumps are as bad as they are made out to be. I have them in my Axis and they work just fine. Not quite as simple plumbing, but they also draw way less amperage so you don't need long runs of expensive wiring either.