Jump to content
  • GUESTS

    If you want access to members only forums on HSO, you will gain access only when you Sign-in or Sign-Up .

    This box will disappear once you are signed in as a member. 😀

  • RECEIVE THE GIFTS MEMBERS SHARE WITH YOU HERE...THEN...CREATE SOMETHING TO ENCHANT OTHERS THAT YOU WANT TO SHARE

    You know what we all love...

    When you enchant people, you fill them with delight and yourself in return. Have Fun!!!

Sign in to follow this  
wastewaterguru

Stainless propellers

Recommended Posts

I have a 115 Yamaha 4-stroke on a Lund 1700 Fisherman and am fed-up with aluminum props. I spent a lot of time on the rivers the last couple years and have spent more than $200 in prop repair. All of the rebuilds have been a result of minor impacts with sticks and debris. I want to upgrade to a stainless but have no clue what pitch and diameter to go with.

If anyone has a similar boat/motor combo with a stainless prop, I would appreciate some information on prop manufacturer, performance, and durability. I currently run a 13 and 1/2 inch by 19P Michigan wheel aluminum for fishing and a 13 and 3/4 inch by 15P for water skiing.

Anybody have some good thoughts on what would be the best prop for both situations.

------------------
I fish.....Therefore I grovel.

Here....Fisheeeeeeee!!

Share this post


Link to post
Share on other sites

I would recommend a Mercury Vengance or Laser 2 stainless. It will be approx $450-500. Without knowing what rpm you are turning at full throttle I don't know what pitch recommend.

[This message has been edited by kjgmh (edited 03-07-2003).]

Share this post


Link to post
Share on other sites

wastewaterguru,

Can you tell me what you're turning for RPM with both props? This is a big consideration in propping out a boat... and if done correctly should eliminate the need for a running prop (speed prop) and skiing prop (power prop).

One consideration though... if you're doing enough damage for prop repair to total 200 dollars I don't know that I would consider a stainless steel prop. When you hit something with aluminum, as you already know, the prop deforms. When you hit something with Stainless steel the prop doesn't typically give, forcing the lower unit on your motor to give, typically causing damage. In my opinion, I'd rather have a prop rebuilt from time to time than paying for a new lower unit... but again, that's my opinion.

Share this post


Link to post
Share on other sites

The problem with the aluminum props is that they "weld" pieces to the prop to fix the damage. Once you have one rebuilt for the first time, they tend to "melt" away at the leading edge of the repair area and even hitting twigs at the thin "melted" area causes the entire repair area to fail. I have also noticed that I can flex the blade that has been repaired with my hand and I know that aint helping the performance any. I still plan to use an aluminum prop on the minnesota river because the current is fast enough that large logs, etc. remain near the surface even after they are waterlogged and denser than the water.

With the 19P prop I get about 43 mph at 5500 rpm. The 15P prop I do not get to WOT. I get to 5500 rpm before WOT at about 36 mph. I never go faster than 30 when tubing or skiing so I don't worry about the rpm's much on this prop. The 15P prop has a much greater initial accelleration, but I do have to pay close attention to the rpm's.

------------------
I fish.....Therefore I grovel.

Here....Fisheeeeeeee!!

Share this post


Link to post
Share on other sites

I wouldnt be afraid of going to a stainless prop because of lower unit damage although its a concern. when i was in the bait buisness we switched to a stainless prop on our 30 hp yamaha never regretted it and that thing did take a beating. we also never had much luck rebuilding the aluminum props, seemed like the water was enough to wear them away.We still had the same ss prop on the motor when we sold it after 10 yrs, and it was on the water at least 5 days a week during the open water season.

Share this post


Link to post
Share on other sites

If I had to guess.. and this is only a guess mind you... I would probably try a 19 or 21 pitch prop... leaning more toward the 21 pitch prop. You're best bet would be to find a dealer (or take it back to the dealer you bought it from) and try both props to see what you get for performance.

Also, Yamaha's recommended RPM range is up to 6,000 RPM. 5500 is the typical limit on a 2 stroke, but most 4 strokes (including yours) run out to 6000 RPM. That's why I'm guessing at a 19 pitch prop to get your RPM up. Stainless steel props have more cupping than aluminum props, which is why you typically need to add 2 - 4 inches of pitch.

Share this post


Link to post
Share on other sites

Kevin....are you talking about the "ring" type???? Got any specifics?

More cupping and more pitch......wouldn't that lower the rpm??? More resistance.

I am really hoping that someone with a similar motor/boat setup can provide some "real" data. I have found that the dealers don't like the idea of loaning out $400 props to play with. Anyway, I appreciate all the info. Hopefully some Yammy/Lund owners can chime in with some help.

------------------
I fish.....Therefore I grovel.

Here....Fisheeeeeeee!!

[This message has been edited by wastewaterguru (edited 03-07-2003).]

Share this post


Link to post
Share on other sites

Bear with me for a minute here.. I'm starting to dig deep to remember everything about propping.

If I remember right, the cupping is done such that you get a better hole shot (which implies a flatter blade) and yet get a better top end perfomance (which implies a more curved blade). While working for a marine dealer, it was not uncommon to see a dramatic increase in speed (5-7 miles per hour) while also getting a big improvement in hole shot. All of this typically requires a increase in pitch of prop to keep the RPM where it should be.

I hear you on looking for "real" data... I would suggest contacting a dealer and see if they've recently propped the same setup as you have with a Stainless prop. Talk to someone in the service / rigging department.. salesman typically don't know anything about propping.

Share this post


Link to post
Share on other sites

I'm not up to speed on prop gaurds, but I was on another site an there's a thread with photos and feed back. If you like, I can e-mail the site.

[This message has been edited by Kevin Turner (edited 03-07-2003).]

Share this post


Link to post
Share on other sites

Kevin, you can email it to [email protected]com.

Thanks for all the info guys. I love this site. I'll get on the phone one of these days and see what I can find out. I imigine the riggers are being kept pretty busy this time of year, but hopefully I can get some help

------------------
I fish.....Therefore I grovel.

Here....Fisheeeeeeee!!

Share this post


Link to post
Share on other sites
Guest

When getting the proper prop for a rig, dealers of your boat make should be able to set you up with the recommended props for your boat and power. The will have tested the various props for your engine and boat.

Be very careful about props because you can over rev an engine with the wrong size and pitch.

Those of you think your dealer is an one-who-thinks-I-am-silly and doesn't know anything about boat rigging are idiots yourself for buying from an one-who-thinks-I-am-silly. grin.gif

------------------
Kevin Neve's Devils Lake Guide Service
fishingminnesota.com/kevin-neve-guiding/
e-mail: [email protected]
Phone: 701-473-5411 or 701-351-4989
Minnewaukan ND

[This message has been edited by kevin neve (edited 03-07-2003).]

Share this post


Link to post
Share on other sites

Waste, if you are satisfied with the performance of you alum. prop you can use the same pitch and you will have virtually the same performance and rpms. Cupping is not related to material in any way shape or form, either can be cupped or not. The notion that a SS prop is harder on the lower unit is a fallacy, as all newer O/B's have a hub that slips or shears on impact. Each 2" of pitch you go up or down will change you WOT rpm approx. 400 rpm. grin.gif

Share this post


Link to post
Share on other sites

As said in last post if your rpms are satisfactory, holeshot etc. go with 17 inch ss because unlike alum. ss will not flatten out thus reducing it's pitch. P.s. cup does matter if you get a prop with a lot of cup 15" may not be out of the ?

Share this post


Link to post
Share on other sites
Guest
This topic is now closed to further replies.
Sign in to follow this  



  • Your Responses - Share & Have Fun :)

    • I have my Garmin Astro 360 that works well enough along with dog tracking.   I have used my smart phone on a large loop walk through private and tax forfeited land.   The accuracy was pretty darn good.   Superimpose over satellite imagery on a generic mapping program and you can see right where you are and set course around areas you want to avoid.   Battery drain is pretty strong.   I also prefer to keep my eyes up and gain sight knowledge of an area so that future use of electronics becomes a back up and not a crutch.
    • Is fishing Cenaiko worth doing in late June and July? I’ve never really trout fished before and I want to give it a try. If it’s worth fishing, how would you fish the lake? I have an ultralight setup with #1 and #0 Mepps spinners but I have a feeling that wouldn’t work well trying to pull Trout out of a lake. Any tips? 
    • This evening I will reset the live trap.   So far my peanut dough blocks from Menards have only been lasting a day or two, thanks to midnight ramblers....   Score so far is two racoons and a possum.   I wonder what morning will bring... if it stops raining.   
    • I fish a big reservoir that goes as deep as 140 I believe and we do a bit of trolling over the deep parts of the lake.  In fact at night you can troll and your graph will be littered with fish in the 20-50ft range starting over 70ft of water but if you go to 60ft depth range your graph will be empty. Once the deep darkness of night falls those same fish will show 30-70ft deep on the graph suspending over 140ft of water.   We seem to mostly catch walleyes out of this group of fish and rarely catch anything else.
    • These feeders are only partially blackbird proof, as they can still poke their heads in and peck at the food a little bit. I don’t use the suet one much, because only downy woodpeckers can fit in there. 
    • This feeder is blackbird proof for the sole purpose that only woodpeckers and nuthatches can eat upside down. I purposely angle it this way so it’s easier for the pileated woodpeckers to hang on.
    • It only takes about 5 Mb/s to stream a HD movie.   I'm guessing you have some sort of interference going on.   Inadequate BW shows up as buffering....   Or the Roku is going bad.   I have had a couple of them do that, including a roku stick.      My money is on roku device being bad.   If you have a chromecast, does that work better?   
    • Milwaukee Fishing Eezy Peezy! By Milwaukee Wisconsin fishing charter Capt. Jim Hirt Lake Michigan Salmon Fishing Report 6/24/2019 Hello all, thank you for reading my reports. Joe, Laura and Jonathan Wolf from Mansfield Texas had fair weather and a multi species catch on a beautiful day on Lake Michigan. I enjoyed the opportunity to fish with them. Join us in Milwaukee! To get my fish reports and how to videos first go to http://www.jimhirt.com By subscribing you will keep ahead of the other anglers. When I post you will get it fast! Action is steady and all species are active. The water is still 50 degrees on top. This has made for easy presentation to fish. As long as this continues anglers will have success don’t miss out. Good weather and lake conditions will fill the cooler in the future. The water is warming up near shore and that area is slow. There are pods of forage from 70 feet and out to 200. The recent changes has brought many Chinooks and Coho in. Most of the fish came from the top to the bottom. Our best presentations are Church Walleye planer boards with 150 and 225 copper running 40 to 65 down and downriggers 80 to 120 feet down. Flasher and Bull Frog flies or 100 foot leads on Reaper magnum spoons on downriggers have been the best producers. Reaper magnum spoons are sold at http://www.badgertackle.com with free shipping. Our best boat speed was 2.0 mph. Wire Divers are producing very well set to #2 with 130 feet of line out. Have a great fishing season. Let's go fishing!! Jim charters out of Milwaukee, WI. with Blue Max Charters. He can be reached at 414-828-1094 or visit his web site at http://www.bluemaxcharters.com Copyright© 2019, James J. Hirt, All Rights Reserved. Fish,report,salmon,lake,michigan,Milwaukee
    • Well, after two and a half hours on the phone with Netgear and Comcast I have no resolution.  Comcast is coming out to the house on Wednesday to see what the problem is.  I am on the 150 mbs plan and I still only get around 30 on a speed test.  Even when I wire directly to the router the performance is the same.  I may upgrade to the Roku Ultra as well.
    • The speeds that you show are enough for streaming, the roku stick is not their best streaming device. I use Roku 3 and used to have your bandwidth with no problem.
×
×
  • Create New...