PROP help new SB 522CR 115-4S Merc.

[Bamaman]

Before you put more hours on your boat, go back to DAH PRO-Peller shop and ask them to replace your prop with one that does a better job.

We seldom see any 4 bladed props on pontoons, as 3 bladed props just work better for pontoon/tritoon boat use. 4 blade props are most often seen on bass boats for acceleration.

The standard of the industry for a pontoon/tritoon is a Mercury Enertia, and it comes in 1" pitch increments so they can be dialed in perfectly. For Yamaha, the OEM Reliance prop is the one to get.

[pote]

Before you put more hours on your boat, go back to DAH PRO-Peller shop and ask them to replace your prop with one that does a better job.

We seldom see any 4 bladed props on pontoons, as 3 bladed props just work better for pontoon/tritoon boat use. 4 blade props are most often seen on bass boats for acceleration.

The standard of the industry for a pontoon/tritoon is a Mercury Enertia, and it comes in 1" pitch increments so they can be dialed in perfectly. For Yamaha, the OEM Reliance prop is the one to get.

hmmm, the Enertia page on the Merc site says its for high HP engines - OP has a 115

[smoker62]

I have the new Merc spitfire. Its a 4 blade supposedly designed for toons . It works better than the 3 blades I have tried.

[dockholiday]

Before you put more hours on your boat, go back to DAH PRO-Peller shop and ask them to replace your prop with one that does a better job.

We seldom see any 4 bladed props on pontoons, as 3 bladed props just work better for pontoon/tritoon boat use. 4 blade props are most often seen on bass boats for acceleration.

The standard of the industry for a pontoon/tritoon is a Mercury Enertia, and it comes in 1" pitch increments so they can be dialed in perfectly. For Yamaha, the OEM Reliance prop is the one to get.

hmmm, the Enertia page on the Merc site says its for high HP engines - OP has a 115

Vengeance might be an option
www.mercurymarine.com/propellers/sport/vengeance/
maybe something like a 13p

[bacaruda]

Smoker, yeah, it's a semi tri-toon. 3/4 lenth center tube, and lifting strakes. New option 2012.
I talked to DAH, and they said I was good for 1 free rework, and they'd pay return shipping.
Good news, but I don't know if they can recover what I had, much lees gain any by taking out
too much tip-cup they added. We'll see, hope it'll be weather left to check it out!

Thanks,
jim.

[bacaruda]

Bamaman, thanks. Shop said they are familiar with perf-toons, and recomemded the Solas, I had
also looked at before. I may have to redo, as I have lost and gained on props in the past. This
might be a looser. Problem that I have found is that, many of the prop selector utiulities
don't even consider the boat configuration. And the Mercury Selector that does, doesn't know between two or three tubes for a pontoon. And that is a big difference.
Thanks,
jim.

[bacaruda]

Bamaman, also, recomended prop by DAH was back ordered by their suppplier. So I found one
cheap and had it drop shipped to them, for their recomended work.
Lived, but never learn on some things. I guessed on prop for a brand new 1998 Winner Spirit/175XRI
Merc. combo. Nailed it, lucky, 26P Predator. New tech at the time, defunct now.
This time not lucky, even though I THOUGHT I did my homework.

Thanks,

[bacaruda]

Got prop back with rework, better, back some to 30mph and 5900. I talked to DAH again, and they don't want to take out anymore cup yet.
"Jack up mtr." I was going too anyway, after adding Baystar and old manual plate I have laying around. I'd treally like TrophyPlus but shortest
pitch is 17P. Then TempestPlus come in 15P, but barrel too big. I really want to better the stock cheapy and get revs. in the 6300 range.
I'll see the new numbers, and if not there, I guess I'll sell and minimize loss.
Then look at an Enertia.
Thanks,
Jim.

[smoker62]

I would think with strakes and the 3/4 tube you should do better speed wise. I put my underskinning on this weekend and ran a solid 27 with a few up ticks to 28 with a full tank of fuel. This with a standard twin tune 522 and the same Merc 115 4 stroke. I run the 4 blade Merc Spitfire a few hundred under max rpms. I was only running 24-25 end of last year. I contribute it to mostly clean toons as this was the first time in for the year. Also glass calm and a 50ish morning probably helped with the extra few mph. The underskinning may have helped a bit too but I did that more to get rid of the water brakes when running on rougher water. I hated that feeling of slowing down when the waves caught the cross members. I really like this 4 blade prop.

[bacaruda]

Smoker, that's pretty good. I agree with you. I'm probably just shy of hsp peak only turning 6 grand or so. That's why I mentioned prop shop said stay with 15P.
I probably should have gone with 14P, OR maybe even 13P, and cupped the he!! out of it to get the grip I wanted.
1. Went with their recommendation.
2. Didn't run prop before being worked.
3. Shop recommended on screamandfly.com they should know, but ?

Anybody else ideas? Have to wait and see what plate does.

Jim.

[smoker62]

Where are you located ? Ricky at Brainerd props in MN is awesome. He sent me 3 different stainless props to try on my 250 Verado and I never payed him a dime. Well, until I picked one that is. I have bought numerous props from him for my last 3 boats just because of his customer service. His knowledge is tops too.

I think DAH is about 25 miles from me. If I remember right , he has a dirty old barn he works out of behind his house. I dropped a prop off for a buddy a year or so ago , couldnt believe the place .Looked like an abandoned petting zoo, but thats where miracles happen I hear.

[Bamaman]

The standard of the industry for pontoon boats is the Mercury Enertia prop, which are available in 1" pitch increments.

But it's a stainless prop, and the cheapest price I know online is $445 @ Jacos in Lawrenceburg, TN. Jacos doesn't allow returns, so you've got to be sure of the size you need.

I suggest looking at Mercury's performance testing to see what pitch props they're running on comparable boats to yours.

[bacaruda]

Well boat/engine tests were about what I remembered. Nearly identicle Crest, full trytoon 200lb more, 30.9@6200. Aluminum BlackMax 13P. Then there's this Weeres 2 tube, 1580lb light, 29.5@6380, Spifire 13P. Slip doesn't add up here. The aluminum BlackMax tighter than the Spitfire? Don't think so. But it pretty clear I have too big a wheel, and need to get r's up into the hsp band.

I don't know how this is going to work even with the plate.

Thanks, oh I've done a little with Jaco's, and their prices are excellent.

And they took a prop back with a restock fee. But it had better look like it did fresh out of the box.

[PlaynDoc]

I had problems with the dealer installed prop...

I took it back to them, changed it out... and posted this: They Got My Prop Right.

The photo shows 29.3mph. That was with wife and child, cooler, etc... When I'm alone in boat, with 1/2 tank of gas, and glass surface water... I can maintain 30mph, gps.

My 13.75x15p prop is a cheap, black, aluminum, 3 blade. Nothing fancy. With it, I can pull heavy tubes 20+ mph.

[bacaruda]

PlayDoc, you might try one more. You were obove yor power band before, and you're below it. I hear, and beoleive these DOHC 4 strokes like to rev. I think you want to be in the 6200-6300 range. Right where a 13P would put you.
J.