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-   -   Pathfinder 23 dv owners. (https://www.thehulltruth.com/boating-forum/1078392-pathfinder-23-dv-owners.html)

los1042 04-24-2020 01:40 PM

Pathfinder 23 dv owners.
 
I currently own a 2006 pathfinder 23 dv with twin 2005 yamaha 150 four strokes. I bought the boat back in October 2019. The props that came with the boat are 15 1/4 by 19 pitch props. I'm only getting about 5300 rpms wide open trimmed up. I'm looking to get more rpms. I'm looking for any advise on changing the props on the boat. Thanks everyone for reading my post.

76 Mako 23 04-24-2020 02:05 PM

Give Ken at Prop Gods a call hes top notch and will ship out props to try.

mackerel 04-24-2020 03:06 PM


Originally Posted by 76 Mako 23 (Post 13582587)
Give Ken at Prop Gods a call he’s top notch and will ship out props to try.

Good advice! https://propgods.com/

There were a number of 23DV's that were powered with F150s, but most are singles. I'm sure that someone who has been thru this will be able to answer your question, I know that member Cooper had the same setup years ago and went thru various props and engine heights before jumping to a zuke 300. I think that Windham14 did as well. They might remember what they tried.

If not, most 23DV's with twins came with the 190 gallon fuel tank, so be sure and mention that to Ken if you go that route as the weight will make a difference.

Good Luck!

los1042 04-24-2020 07:23 PM

Thanks for the reply. My boat has the 110 gallon fuel tank per Pathfinder. I will reach out to prop gods. Thanks.

K-dawg 04-28-2020 10:06 AM

What MPH are you getting at 5300rpm?

Check the height of your anti-ventilation plate at cruise with the engines trimmed up. I bet yours are buried.

highflier1 04-28-2020 10:37 AM

I once had a 23DV with the option huge fuel tank, It actually went all the way forward into the console. I forget if it was 190 or 140 Gallon. Mine had twin yamaha 150's Unfortunately I do not recall the props that I had on it. But I 2 was disappointed on performance and did some research. I learned a lot but upgraded before I could put my learnings into action. However the person I sold it to did make changes and was much happier after that.

The number one thing is that the typical install had the props way to deep. Raise the motors and you will get better ECO, speed, and more RPM's to go with that. So unless you have already put effort into getting the right motor height, I would do that first before you even touch the props.

Does you boat porpoise a bit at higher speeds? That could be a sign that you need to raise the motors.

chrisrack 04-28-2020 11:02 AM

Are you sure the props are 15.25" diameter? I though the largest that a F150 could swing was 14.25"

mackerel 04-28-2020 11:24 AM

los1043, let us know the outcome for the benefit of others with the same setup.

If you do work with Propgods, get Ken to comment on this thread too. He's on this board.

Onewolf 04-28-2020 12:07 PM


Originally Posted by chrisrack (Post 13595101)
Are you sure the props are 15.25" diameter? I though the largest that a F150 could swing was 14.25"

My F150 runs a 15 1/2" x 17" Michigan Apollo SS prop. I like it's performance much better than the Yamaha Reliance props (17", 19") I tried.

los1042 04-28-2020 01:10 PM

Thanks for the replies. My boat does porpoise at higher speeds. I will check on the motor height. I have seen 47 mph. But that was slick calm and going with the current.
https://cimg6.ibsrv.net/gimg/www.the...9d1e3e9dc.jpeg
Here she is.

los1042 04-28-2020 01:18 PM

Motors are mounted on the second hole from the top.

K-dawg 04-28-2020 01:38 PM

Those look like 25" F150s. Single engine 23DVs use a 25" outboard, so I imagine that even if you mounted those all the way up that they would still be too low. I'm thinking 20" shafts would be more appropriate for twins on this hull, but I've never seen one set up like that. You could also try a jackplate, but that's moving all that weight even farther back.

You should easily get over 50mph once you have her set up right.

highflier1 04-28-2020 03:04 PM

I had the 25" on mine also, that was the standard setup I think. I am pretty sure that you need to move to the top hole. As long as you do not start blowing out, that would be your best simple and cheap option to get more out of your current setup.

BiloxiGuy 04-28-2020 04:40 PM

x1000 on getting your motors to the correct height before throwing money down the drain on props just to spend more money on different props after you then raise your motors.

Been there, done that, and got the t-shirt.

coores14 04-28-2020 05:56 PM

expect to see low 50's with the right setup. 52-54ish

los1042 04-29-2020 09:10 AM

https://cimg1.ibsrv.net/gimg/www.the...b2a6ba0837.jpg
Looks like the motors are as high as they can go. Im not sure if the bottom part can slide up anymore.

coores14 04-29-2020 10:08 AM


Originally Posted by los1042 (Post 13598591)
https://cimg1.ibsrv.net/gimg/www.the...b2a6ba0837.jpg
Looks like the motors are as high as they can go. Im not sure if the bottom part can slide up anymore.

I would call that a mess up during the install of the engines. Bonehead move.

Native2FL 04-29-2020 10:20 AM

Can you post a pic with the boat on the trailer ? Tilt the engines down and take a stern shot so we can see the height of the cavitation plates relative to the bottom of the hull.
Hard to be correct without some photos, or running shots of the lower units at high cruise speed. You may have the wrong props too.

There are a bunch of twin owner's who have tuned the props for their needs. Hope one pops up for ya.

Pretty boat, Los !!
Marc

Sandpiper John 04-29-2020 10:36 AM


Originally Posted by coores14 (Post 13598842)
I would call that a mess up during the install of the engines. Bonehead move.

^^^This^^^

It looks like the holes drilled for the mounting bolts were not properly spaced.

cobiasco 04-29-2020 10:48 AM

Just a thought: https://www.thehulltruth.com/parts-f...-up-300hp.html

K-dawg 04-29-2020 11:32 AM

Interesting. I'd be curious to see if other twin engine DVs have the same bolt spacing.

I noticed that it looks like bolts have previously been in the holes above and below the current top bolt hole.

I think my single 25" engine top bolt holes are about 3/4" lower than your top bolt hole, and my engine is also mounted on its second hole. I think my engine could stand to be raised one hole, and it runs at the deepest part of the hull, so imagine how deep yours are.

If clearance allows, you should be able to fill those lower holes and redrill about 37mm higher to put them at the right spacing, but I suspect that when you move the engines to the highest position, you'll still be buried a little bit.

Check out the rigging guide for bracket hole spacing. http://gfretwell.com/ftp/Rigging%20guide%202012.pdf

Ahh, read this: https://www.thehulltruth.com/4737502-post5.html

SeaBass2008 04-29-2020 12:20 PM


Originally Posted by Onewolf (Post 13595350)
My F150 runs a 15 1/2" x 17" Michigan Apollo SS prop. I like it's performance much better than the Yamaha Reliance props (17", 19") I tried.

Not to derail, but what boat please? length, weight deadrise...Appreciate the info.

Onewolf 04-29-2020 01:24 PM


Originally Posted by SeaBass2008 (Post 13599394)
Not to derail, but what boat please? length, weight deadrise...Appreciate the info.

Tidewater 21 bay boat. 15 degree deadrise. 2100 lb hull weight.

los1042 04-29-2020 03:46 PM

https://cimg7.ibsrv.net/gimg/www.the...9871c7e35d.jpg
Motors are level

los1042 04-29-2020 03:47 PM

https://cimg9.ibsrv.net/gimg/www.the...8c1b6a593b.jpg

DonV 04-29-2020 04:48 PM

From those pictures it looks like the cav plates are actually below the hull.....looking at a level, straight line. Not good. As the water comes of the transom, the white area in your case, it rises up at an angle meaning the water is going to hit well above the plates. More unnecessary metal being pushed through the water. Take a straight edge and tape it to the hull in line with your engines, see where the cav plate hits.

coores14 04-29-2020 05:08 PM

i think we're at the point where it doesn't matter if the engines are low or not. If the OP is willing to redrill new holes, then we can start talking again.
FWIW, they look low and I can almost guarantee that that is your speed/rpm issue.

Personally, I think it would absolutely be worth it to drill new ones and fill the old ones.

Native2FL 04-30-2020 07:12 PM

I dunno.. They don't look terribly low. An inch can make a difference, though. May pay to get a professional opinion and look at the props a little more before spending the money.
Do you have a good Yamaha shop to deal with ?

Marc

Miss Conduct 05-05-2020 08:16 AM

I have the same setup. I went with Enertia 19 pitch props and there was definitely a performance improvement. I did a lot of searching and there were a couple people that commented that these are the best props for this setup.

The engine mount holes definitely look weird. Looks like the top bolts are going through the cap? The top bolts on mine are just below the cap and engines mounted on lowest hole. Hope this helps.

Holy Smoke 05-05-2020 08:42 AM

​​​​​​https://www.thehulltruth.com/boating...-s-vs-sws.html

This should help

SeaAgg 06-02-2020 07:49 AM

FYI, there is a 23DV owners group on FB if anyone here is interested.
https://www.facebook.com/groups/1308882279266673


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