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 Post subject: New offshore 4-BLADE SS props for Suzuki motors
PostPosted: Thu Aug 16, 2012 2:54 pm 
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FYI:
PowerTech Propellers is now making 16" diameter 4-bladed props for Suzuki motors in the pitch sizes ideal for single motors on offshore boats. You can buy them direct from PowerTech (http://www.ptpropeller.com/), but I'd recommend you contact Ken @ http://www.propgods.com, as you can save a bit of $$ and he'll drop ship the prop right out to you. For < $500, these are premium props, as when I had another brnad motor, the PTech prop worked even better than the erc Rev$, which is a noteworthy prop to be sure!

Ken also has a database on his site for prop info and he'll recommend the right prop for you. For those on the coast in FL, he has a mobile prop service and will bring his props right to your boat.

DESCRIPTION:
LFS4 - 16.00” diameter, 4-blade design, this Suzuki Outboard Powertech Propeller is available in every inch of pitch from 17-23, right & left hand rotation with moderate rake, the LFS4 has a full tip cup for better lift and grip over the LFS3. 4-blade factory equivalent of the Suzuki 16” diameter prop with better cavitation resistance, shown in polished finish. Available with the Powertech Premium Cushion-Lok Hub design or Square Hub to receive the Vortex/Flo-Torq hub kits...

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 Post subject: Re: New offshore 4-BLADE SS props for Suzuki motors
PostPosted: Mon Aug 27, 2012 10:13 am 
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FYI, the performance on these new offshore props is PHENOMENAL!

My new Suzuki DF250 originally wore a 18.5" pitch, 16" diameter OEM wheel from Suzuki. At the recommendation of Ken from PropGods, http://www.propgods.com, I replaced it with a PowerTech LFS4 4-blade in 21" pitch. Make careful note that OEM Suzi props are notoriously marked LOW for what the pitch really translates to.

3 Blade OEM: Tested with 2 aboard, 55-gallons fuel
WOT - Turned 39-40mph (clean bottom) for 5900 RPMs (redline = 6100)
Cruise - 4200 RPMs for 27-28mph, for ~2.5 or better mpg
Performance averaged both ways in the tide ...

4 Blade PowerTech: Tested with 3 aboard, 45-gallons fuel
WOT - Turned 38-39mph (clean bottom) for 5900 RPMs (redline = 6100) w/
Cruise - 4200 RPMs for 26-27mph, for ~2.5mpg
Performance averaged both ways in the tide ...
Headway speed - With the 9 crew aboard on SUN (see below) against the current I was getting 3.5mpg @ 6mph, ~1700 RPMs. With the tide I was getting > 5.5mpg.

With the 4-blade was installed, I had 3 total aboard for a fishing trip on SAT and yet on SUN, I had 9 people (1 kid) aboard total ... and yet only ran 1mph slower at cruise and at WOT with the heavier load - SAT results versuys SUN results. And I still hit 5900 RPMs @ full turns with the heavier load! My overall fuel burn efficiency for SAT of fishing was 3mpg (more speed cruising), while for SUN's cruise/beach trip it was almost 4mpg (more headway speed cruising around).

On SUN, 5 of crew were on bench at rear of cockpit, 2 in the towers, with me and the kid in the cabin. I had to trim my OB down & in more than I typically do for planing out, but she did get up to plane fine w/ that heavy load.

Lessons learned: To me this shows that a 4-blade can carry a tremendous loading over a 3-blade prop. It also shows me that this Suzi DF250 has PLENTY of torque available, I'd opine much more so than Yam 250hp reports I read, as I'll read of reports here on CP where guys load down their boats for 4-6 guys to go fishing or scuba diving and the boat can't get out of the hole.

My Parker suffered no real performance losses (1mph to be technical @ cruise and at WOT speeds) when loaded down with 9 people on SUN versus when loaded with 3 people on SAT. To me ... .that's impressive results!

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 Post subject: Re: New offshore 4-BLADE SS props for Suzuki motors
PostPosted: Mon Aug 27, 2012 7:05 pm 
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Dale.....The deadrise @ transom is what on yours? Got any idea of what you weigh in at now?

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 Post subject: Re: New offshore 4-BLADE SS props for Suzuki motors
PostPosted: Mon Aug 27, 2012 8:00 pm 
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warthog5 wrote:
The deadrise @ transom is what on yours? Got any idea of what you weigh in at now?

Mod-V deadrise at 14-degrees, ~6,000 pounds loaded, not counting crew ...

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 Post subject: Re: New offshore 4-BLADE SS props for Suzuki motors
PostPosted: Tue Aug 28, 2012 5:52 am 
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I need to look around here and see if one of the yards has a travel lift with a scale.
I suspect I weigh more than 6k, partially due to the two unused fuel tanks under my deck.

BTW Bobby... Dale and I have the same 14 degree hull. Mine is a 1996 model.


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 Post subject: Re: New offshore 4-BLADE SS props for Suzuki motors
PostPosted: Thu Feb 28, 2013 9:32 am 
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I'm still sole searching Dale. :)

Once ya do it you can't go back and say....Oh I don't like it.....I think I'll put XYZ on it now. Well you could if you had a Money tree in the back yard.


So

Quote:
QUOTE: “My Parker suffered no real performance losses (1mpg to be technical @ cruise and at WOT speeds) when loaded down with 9 people on SUN “


So I take that to mean that the MPG dropped to 1.5MPG.......is that correct?

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 Post subject: Re: New offshore 4-BLADE SS props for Suzuki motors
PostPosted: Thu Feb 28, 2013 11:18 am 
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warthog5 wrote:
Quote:
QUOTE: “My Parker suffered no real performance losses (1mpg to be technical @ cruise and at WOT speeds) when loaded down with 9 people on SUN “


So I take that to mean that the MPG dropped to 1.5MPG.......is that correct?

Ooooh, good catch ... post corrected ...

I'm sure the fuel burn increased, but I didn't record it. Bottom line, that Suzi still had the balls to turn screws when loaded with 3X+ the load it had the day before, on the same stretch of water, at or about the same time/tide, in the same conditions. No lugging there~!

Quote:
QUOTE: “My Parker suffered no real performance losses (1mph to be technical @ cruise and at WOT speeds) when loaded down with 9 people on SUN “

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 Post subject: Re: New offshore 4-BLADE SS props for Suzuki motors
PostPosted: Thu Feb 28, 2013 4:02 pm 
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OK Do you run your boat a lot with just 1/3 fuel in it?

I was all set with thinking the DF-300APX was gonna do the job. But after loading the boat down......

2000lbs worth of fuel / people /gear I started to have my doughts with this Yamaha 250 2stroke.

I'm still testing props on it.

I talked extensively to my Suzzy dealer/mechanic and he thinks we can do it with the DF-300APX.

I asked what he thought about a prop before I reread your post and I did forward the post to him.

I said 3 X 16 X 17? and he said No more like 3 X 16 X 21 which falls in line with what you did.

BUT! I have NOT seen anyone load their boat. All this testing is super light loads and 1/3 fuel at the most. I can't go 40 - 60mi South in the Gulf with 50gal of fuel.



I'd really like to see you do some more testing......PLEASE :D


Furthermore My son has been in contact with Parker and the findings are well lets just say that they don't seem to have a lot of data, which seemed very strange to me.

Furthermore They run just Yamaha's. Say what you want. I can remember back in '04-'05 and the debates on THT about how "The 4 STROKES" don't have the low end torque compared to a 2 stroke.

After I FINALLY got the guy to say WHAT 4 stroke? He said Yamaha. I said yep....You haven't done it with Suzuki's.

It's in the gear ratio. Suzzy is geared lower than any other manufacture. It's like putting a Lower gear ratio [Higher Number] gear in the differential of your tow vehicle.

This is something continuously overlooked and folks just wave the Brand banner flag.


http://www.yamahaoutboards.com/outboard ... ifications

Yamaha 250 & 300 have 1.75:1 ratio

Suzzy 300 has 2.08:1 and the 250 has 2.29:1

http://www.suzukimarine.com/Product%20L ... 300AP.aspx

http://www.suzukimarine.com/Product%20L ... DF250.aspx


PS: My Suzzy dealer sells Yamaha and Honda too.

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Last edited by warthog5 on Thu Feb 28, 2013 4:25 pm, edited 3 times in total.

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 Post subject: Re: New offshore 4-BLADE SS props for Suzuki motors
PostPosted: Thu Feb 28, 2013 4:16 pm 
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warthog5 wrote:
OK Do you run your boat a lot with just 1/3 fuel in it?

Yes I do, with E10 crap, I don't keep any more in it than I will use ...

Quote:
I said 3 X 16 X 17? and he said No more like 3 X 16 X 21 which falls in line with what you did.

Where are you getting that -17 number Bobby? I never had that prop, my OEM 3-blade was marked 18.5 ... but it ain't even that!

Quote:
I'd really like to see you do some more testing......PLEASE :D

Uhhmmmmmmmm, sorry, but my boat is covered in a good foot of snow and it will be probably be late May before I spash this year between bizness and a vacation to Key West.

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 Post subject: Re: New offshore 4-BLADE SS props for Suzuki motors
PostPosted: Thu Feb 28, 2013 4:18 pm 
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Bobby... Problem with us up here is that it is still winter, and most of us are still in hibernation on the hard.

My plan is to leave the 17p Mirage Plus presently on my motor, but to raise the motor a bit before she splashes.
How much? That is my dilemma. Once the boat is in the water, I'll have no way of making adjustments.
I'm thinking of raising 2 holes, but if I get it wrong, it could get expensive to 'fix' it. :(

My boat is always heavy.
Full fuel and a full load of fishing gear. My guess is 8k pounds.

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 Post subject: Re: New offshore 4-BLADE SS props for Suzuki motors
PostPosted: Thu Feb 28, 2013 4:38 pm 
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Quote:
Where are you getting that -17 number Bobby? I never had that prop, my OEM 3-blade was marked 18.5 ... but it ain't even that!


It was a guess in the sky. This was after running this Yamaha 250 2 Stroke.


You guys remind me of what I tell my brother.

I tell him his having to go to work is getting in the way of OUR fun.

But in your guys case it's your Snow. LOL

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 Post subject: Re: New offshore 4-BLADE SS props for Suzuki motors
PostPosted: Thu Feb 28, 2013 4:44 pm 
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warthog5 wrote:
Quote:
You guys remind me of what I tell my brother.

I tell him his having to go to work is getting in the way of OUR fun.

But in your guys case it's your Snow. LOL


Yep. That pretty much covers it. :D

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 Post subject: Re: New offshore 4-BLADE SS props for Suzuki motors
PostPosted: Thu Feb 28, 2013 5:41 pm 
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Quote:
I'm thinking of raising 2 holes


Count down from the top.....3rd hole in the motor goes in the top hole of the bracket. That will be safe. That is where my 250 2 Stroke is now.

I've had the piehole cover off the Stainless Marine bracket so many times I said screw it. and ordered a 8in Armstrong. No more screws and silicone.

We had to pull the motor again when the new T&T motor took a crap.

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 Post subject: Re: New offshore 4-BLADE SS props for Suzuki motors
PostPosted: Thu Feb 28, 2013 5:52 pm 
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warthog5 wrote:
Count down from the top.....3rd hole in the motor goes in the top hole of the bracket. That will be safe. That is where my 250 2 Stroke is now.


Can you post a photo for me to go by?

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 Post subject: Re: New offshore 4-BLADE SS props for Suzuki motors
PostPosted: Thu Feb 28, 2013 6:05 pm 
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Easy enough. :)

Image

Image

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 Post subject: Re: New offshore 4-BLADE SS props for Suzuki motors
PostPosted: Thu Feb 28, 2013 8:25 pm 
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warthog5 wrote:
Easy enough. :)

Image


That works.
Thanks!!! :)

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 Post subject: Re: New offshore 4-BLADE SS props for Suzuki motors
PostPosted: Fri Mar 01, 2013 9:48 am 
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Megabyte wrote:
My boat is always heavy. Full fuel and a full load of fishing gear. My guess is 8k pounds.

No way, no how she’s THAT heavy … re-read the post on my boat weight … 3-tons wet, without crew or ice, which may add a 1/2-ton, but not a full ton IMHO, haha! I have every item ‘typically’ carried weighed and allotted for. I say ‘typical’, as since that effort I have begun removing items (not anything safety related) that only gets used a few times per season. I put a locking dock box at my boat club where I can store items like an extra 600-1000’ foot of anchor rode and spare anchor(s) that only get used on offshore tuna trips.

warthog5 wrote:
I've had the piehole cover off the Stainless Marine bracket so many times I said screw it and ordered a 8in Armstrong. No more screws and silicone.

Yup, did that myself within the 1st year of ownership. FYI, check this bracket a few times per season and be prepared to remove the water. I drain it religiously whilst stranded on sandbars … but you’ve seen the effects of our 9’ tides here ;) . FYI, the water comes from condensation of that bracket. If one doesn’t drain it or somehow remove the water, it WILL be full at the end of a season …

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 Post subject: Re: New offshore 4-BLADE SS props for Suzuki motors
PostPosted: Sat Mar 02, 2013 8:48 am 
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Speaking of which. I discovered this. It was kinda camo'd up from the bottom paint. I went WTF? Apparently that is where there was a rudder zinc mounted and it rotted away. I will have it welded up when I get it around a tower shop, but in the meantime I dug in my tool box and found a anodized alum 1/8in pipe plug. so I drilled and tapped the hole for that.

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 Post subject: Re: New offshore 4-BLADE SS props for Suzuki motors
PostPosted: Sat Mar 02, 2013 12:03 pm 
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My bracket is like that. I put a Marlon drain in the hole closest to the transom and a 3" zinc off that other hole. I just use a thru-bolt there, with a good washer and sealant on the inside.

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 Post subject: Re: New offshore 4-BLADE SS props for Suzuki motors
PostPosted: Sat Mar 02, 2013 6:45 pm 
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Quote:
I just use a thru-hole there, with a good washer and sealant on the inside.



Sorry....I lost you on that part Dale. Yea usually they use the pancake style "Rudder Zinc" on the brackets.

It has to have a small bare spot around the hole for it to make contact with on the bracket where the Zinc has a crush area. If it does not make a connection.....Like a star washer makes a electrical connection....It will not work correctly and protect the alum.

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 Post subject: Re: New offshore 4-BLADE SS props for Suzuki motors
PostPosted: Sat Mar 02, 2013 9:03 pm 
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Quote:
I just use a thru-bolt there, with a good washer and sealant on the inside.

... corrected ... see bold.

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 Post subject: Re: New offshore 4-BLADE SS props for Suzuki motors
PostPosted: Wed Aug 26, 2015 9:02 am 
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Hi Dale,

I have almost the same configuration you do. How did you calculate the 2.5 mpg cruise consumption?

I have been running my boat quite a bit here in San Diego and here are my numbers.

3x16x18.5pitch 3 blade suzi stock prop

1st official run of the season since purchase:

14nm out @ 4400rpm 24-25knots
14nm in @ 4400rpm 24-25knots
10nm of tuna trolling @ 6kt
--------------------------------
34 gallons of fuel burned. This is with 125 gallon fuel tank full of fuel and 65 gallon bait tank full of water/bait. 60lb of ice. 40lb fish, 15 rods, tackle, etc. etc. = 1.11 mpg (whoa) :shock:

I was a bit shocked by the fuel burn at this point so I figure I should slow it down....

2nd official run of the season

25nm @ 3900rpm 17-18kts
25nm @ 3900rpm 17-18kts
no tuna trolling, shut down engine while drifting for hours

34 gallons of fuel burned. Fuel tank full at 125 gallons, 65 gallon bait tank full of water/bait. 3 guys and my 8yr old son. 100lb ice, 100lb fish 15 rods, tackle, etc. = 1.47 mpg (ok a bit better)

3rd & 4th official run of the season

14nm out @ 4000rpm 18kts
14nm in @ 4000rpm 18kts
drift fished, no fuel burn
14nm out @ 4000rpm 18kts
14nm out @ 4000rpm 18kts
5nm slow cruising looking for fish signs @ 7kts

44 gallons of fuel burned for 2 trips. Fuel tank full at beginning of 3rd trip and fueled up after 4th trip. 65 gallon bait tank full of water/bait. 3 guys and my son, 20 rods, tackle, etc = 1.38mpg

5th official run of the season

19nm out @ 4100 18.5kt
19nm in @ 4100 18.5kt
drift fished, no fuel burn

22 gallons of fuel burned. Fuel tank full, 65 gallon tank EMPTY (no bait). 2 guys fishing, 100lb ice, 300lbs of fish, 15 rods, tackle, etc. = 1.72mpg (boat runs a lot lighter with empty bait tank)

For what it's worth, I have not changed the prop since I purchased the boat and I have since added an 70lb aluminum frame tuna tower and a 65 gallon bait tank. So I know a prop change is in order. Just not sure if fuel burn will be any better or worse with the prop change.

Sea state for most every day was 2-3' swell, 1-2' wind chop, ~10kts of wind.


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 Post subject: Re: New offshore 4-BLADE SS props for Suzuki motors
PostPosted: Tue May 10, 2016 8:03 pm 
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Flyliner, what Parker do you have ? I have the 2320 deep V. 250 suki with factory prop. I haven't run numbers yet.


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 Post subject: Re: New offshore 4-BLADE SS props for Suzuki motors
PostPosted: Sun Jul 10, 2016 6:52 am 
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[quote="DaleH"]FYI:
PowerTech Propellers is now making 16" diameter 4-bladed props for Suzuki motors in the pitch sizes ideal for single motors on offshore boats. You can buy them direct from PowerTech (http://www.ptpropeller.com/), but I'd recommend you contact Ken @ http://www.propgods.com, as you can save a bit of $$ and he'll drop ship the prop right out to you. For < $500, these are premium props, as when I had another brnad motor, the PTech prop worked even better than the erc Rev$, which is a noteworthy prop to be sure!

Ken also has a database on his site for prop info and he'll recommend the right prop for you. For those on the coast in FL, he has a mobile prop service and will bring his props right to your boat.

DESCRIPTION:
LFS4 - 16.00” diameter, 4-blade design, this Suzuki Outboard Powertech Propeller is available in every inch of pitch from 17-23, right & left hand rotation with moderate rake, the LFS4 has a full tip cup for better lift and grip over the LFS3. 4-blade factory equivalent of the Suzuki 16” diameter prop with better cavitation resistance, shown in polished finish. Available with the Powertech Premium Cushion-Lok Hub design or Square Hub to receive the Vortex/Flo-Torq hub kits...

Image[/ Hi Dale, I haven't heard from you hope all is well. you know i have a 2005 2320 deep V Parker. I repowered with Suzuki 250 4 stroke. Here are my pros and cons. Pro. 44 MPH at 5800 RPM. That's it. Lots of cons. Ass drags until I'm at plane 3300 RPM. My gas miles after my 2 nd full tank of gas and 40 hours on motor has been under 2 GPH the motor was mounted all the way down. My first motor 200 Yama HPDI I raised it 3 times to one below the lowest. The motor was almost all the way up. She ran so good the I took the 4 blade off and when with 3 blade SS series 11 Yamaha. Now with the new motor when I'm in plane and running 25 to 44 MPH the fins on the motor are at water level. Maybe the water is a inch higher. Coming into the inlet on a following sea the motor is almost under the water and I'm not getting the power to go pass the waves unless I start powering up sooner. Also at 3000 rpm the boat in back is kicking up lots of water like a jet boat. Do I first get a 4 blade or do I first raise the Motor ? Thank you Marty D


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