Guests - If You want access to member only forums on HSO. You will gain access only when you Sign-in or Sign-Up on HotSpotOutdoors.

It's easy - LOOK UPPER right menu.

  • Announcements

    • Rick

      Members Only Fluid Forum View   08/08/2017

      Fluid forum view allows members only to get right to the meat of this community; the topics. You can toggle between your preferred forum view just below to the left on the main forum entrance. You will see three icons. Try them out and see what you prefer.   Fluid view allows you, if you are a signed up member, to see the newest topic posts in either all forums (select none or all) or in just your favorite forums (select the ones you want to see when you come to Fishing Minnesota). It keeps and in real time with respect to Topic posts and lets YOU SELECT YOUR FAVORITE FORUMS. It can make things fun and easy. This is especially true for less experienced visitors raised on social media. If you, as a members want more specific topics, you can even select a single forum to view. Let us take a look at fluid view in action. We will then break it down and explain how it works in more detail.   The video shows the topic list and the forum filter box. As you can see, it is easy to change the topic list by changing the selected forums. This view replaces the traditional list of categories and forums.   Of course, members only can change the view to better suit your way of browsing.   You will notice a “grid” option. We have moved the grid forum theme setting into the main forum settings. This makes it an option for members only to choose. This screenshot also shows the removal of the forum breadcrumb in fluid view mode. Fluid view remembers your last forum selection so you don’t lose your place when you go back to the listing. The benefit of this feature is easy to see. It removes a potential barrier of entry for members only. It puts the spotlight on topics themselves, and not the hierarchical forum structure. You as a member will enjoy viewing many forums at once and switching between them without leaving the page. We hope that fluid view, the new functionality is an asset that you enjoy .
Sign in to follow this  

Looking for a new prop....

Recommended Posts

I know this has been beat to death on here, but I need some thoughts.

So my boat (16 ft Lund Rebel) gets about 29 mph with just me, but also porposes (bounces up and down) badly. I can plane it out at 22 and ride fine. 2 people it's no problem and I can hit about 27....

Anyways I have a 40 hp 1991 Evinrude VRO, and it needs a new prop, this one is just wore out, dinged up, missing a small chunk, ect....

Since I am a walleye guy and it's not about how fast your boat goes but how slow, would I be better off getting the prop rebuild (Troll forward down too 2.3, would like to get in the 1.9-2.0 range) or could I slow down somewhat by dropping some pitch in my prop?

As long as I can get on plane still and go about 22-25 I would be completly satisfied.

Share this post

Link to post
Share on other sites

Does your motor have a trim pin? If think it does... if so, try lowering it one hole, which should take care of the porposing at high end.

Do you have a tach on your boat? If so, what are you running for RPM?


Share this post

Link to post
Share on other sites

It's mounted on the top bolt hole, I could raise the whole motor up by moving it, but then the motor would not sit on the transom, it would only be supported by the bolts.

The porposing problem is caused by all the weight being in the back of the boat, it is a very light boat by nature, and there is no storage upfront to move anything else, so the gas tank, 1 battery, and my fat but are all back there, plus the livewell sits to the back of the centerline.

Share this post

Link to post
Share on other sites
VMS    0


to me, what it sounds like may be a couple of things: First the motor cannot "tuck under" enough, or 2) the prop is too high in pitch, or 3) the trailing edge of the hull right at the transom is peened over too far.

As you had mentioned the trim pin is in it's lowest position so that cannot be removed. What can be done is you can buy some shims that would allow your motor to have more negative trim (the lower unit is "tucked under" more, which would force more thrust upward in the rear, thus driving the bow down a little more when on plane.

When over-pitched, the prop is working too hard to try and keep the bow up and due to lower RPM's is unable to. going down in pitch can take care of that since the motor can run at a higher RPM. Being you have an OMC motor, (and I being a former owner of a 50hp OMC) I'd be interested in knowing what prop you are running on your motor. My 50 ran well with a 17 pitch on a 700 pound boat (not much larger than your Rebel...but there is some difference)

If the trailing edge of the hull is peened up too much, the bow never settles down. I don't think this is the issue since when you put weight up front, everything is fine... It is a thought that ran through my head that could potentially be an issue. When peened over too much, the bow has a very easy time going up, but the trailing edge of the hull is not holding it down...water flows over it too easilly, thus it gets to a breaking point...your porpoise.

I'd first raise that motor...The Rebel has a pretty flat rear portion of the hull and your motor has got to be close to max HP if not already. by moving the motor up, you will essentially allow the motor to gain some rpm, but you will introduce some slip to the prop fins in the water, which I think might help reduce the porpoising (worth a shot anyway..especially if you are over-propped). Don't worry about the motor being up off the transom on top...the main weight of the motor is being supported by those bolts and the boat is designed to have a motor mounted only weight 200 pounds. I'd go up 3 holes and test it. You might really enjoy the results...and the gain in speed. If the prop lets go on moderate turns, drop it one hole and test again.

I'd bet as your motor sits right now, the anti-ventilation plate is below the lowest portion of the hull which is excess drag... No need for that...VERY inefficient setup in that manner...


Share this post

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

  • Posts

    •    Mama must be crackin' the whip tonite, looks like he can't come out and play. Or, he and Delmar are hittin' the corn stands.
    • Wow. I was tempted to drive down to my sister's place in KC, but the probability of cloudy skies scared me away.  I have some regrets. Where were ya? I did drive to Frontenac state park to get a look at what we got here.  Didn't look like the clouds we're going to cooperate in the metro.
    • He's a liberal so, same thing!   
    • Made it down to Missouri to visit a friend and witness the eclipse. Cool event overall. I had a tripod malfunction seconds before totality began so all of my shots were handheld at 600mm so I know they could be better. I still am happy with the results though.
    • Smurfy's just stirrin' the pot, those union guys must have lotsa free time.......    Say Delmar, yer Cub foods has corn for TEN CENTS AN EAR in their ad this week....
    • I buy from his buddy's truck.   What more does he want?   Sometimes I buy at walmart instead.  Life goes on, Brah  obla dee obla dah
    • WTF are you talking about?  You are already judging me so bring it on.  Tell me about your training.  Cite studies that show the deficiencies of treadmills.   Cite studies that show how Chiropractic cures diabetes and cancer...   Come on, you want to engage in a battle of wits?  Don't come half equipped.   Heat? How about I repost the bizarre chiropractic stuff?  Or have you disavowed it of late?    
    • I read about someone else fishing them like that, so gave it a try.  I use a smaller paddle tail sometimes or this last weekend I was using a SK Rodent. I've kinda switched to Dbombs and Pit bosses for t-rigs, so I figured I would use up some of those Rodents. They worked good on the Chatterbait for action, but tore up kinda fast.   This technique works best I think in dirtier water for me. I would definately have a t-rig ready too. Been catching a lot on them too!
    • You sure are into this huggin' and kissy stuff. Are you one of those touchy-feely "Oh I'm so happy" free spirit type guys?!        
    • Well, I didn't have any results anywhere close to that... we had a good time at the cabin we stayed at (got home Saturday), but fishing was very tough... if we end up going up there again next year I'll be in touch...
  • Our Sponsors