Parker 2520 MV Prop?

[coyotefisheries]

I have a 2003 Parker 2520 MV with a Yamaha F225, transom mount. - experimenting with props, and looking for any advice or info. I bought the boat used, came with a 14.5x19 3 blade, looks like they are cupped pretty good. I get 5100 rpm and 31 knots wide open.

 

[captbone]

Wow, that is the wrong prop by a long shot.

Go back a few pages on the power section and your will see a few other reports with this same boat.

My option, the right prop for you is a 15pitch prop, 19pitch is way too big.

I would strongly recommend a 15pitch Mirage Plus

 

[B-Faithful]

16" or 17" Enertia. Though smaller diameter than the mirage plus it has larger blade surface. It is also made of the lighter x7 alloy

 

[DaleH]

Yes, you need a lower pitched prop. First find the maximum RPMs for that motor and then with standard gear and 1/2 a tank of fuel, you want to be no more than 200-300 RPMs off the max RPMs. Otherwise you will be lugging the motor when under a heavy load and that is the worst thing you can do for an engine.

Unfortunately, matching props to hulls is more art than science.

 

[esfishdoc]

I'm about ready to buy my another prop or have my current one modified.

I currently run a Rev 4 with a 15 pitch but what would make it perfect is either a 16 or 17 inch pitch. I really like the REV 4 performance and hole shot but at my favorite cruising speed I'd like to bring my RPMS down 100 to 200.

When I went from a 17 inch pitch 3 blade Stilleto to a 4 blade prop conventional wisdom suggested dropping to a 15 pitch.... but I think the 17 would have been better.

Knowing what I know with my 2520XL and the performance with the REV 4 15 inch prop I would highly recommend the Rev 4 17 inch pitch for you MV hull.

Richard

 

[DaleH]

Knowing what I know with my 2520XL and the performance with the REV 4 15 inch prop I would highly recommend the Rev 4 17 inch pitch for you MV hull.

Evn though all the 'books' state it, my '92 mod-V 2520 with 225hp 2-stroke OMS (6K max RPM) motor can't wear a 17" putched wheel ...

I tried a Renegade severely cupped 16" pitch 4-blade, but the blade design caued bow lift SOOOOOOOOOOOOOO bad I had to severely deploy the tabs.

Lessons learned ... prop selections is more black magic or expen$ive trial and error than science. I know Capt Kev went thru many props too.

 

[Megabyte]

Lessons learned ... prop selections is more black magic or expen$ive trial and error than science. I know Capt Kev went thru many props too.

Oh I did... but I think there may be other members here who tried even more props than I did!
I never did find the perfect prop for my boat, but I found one close enough that I'm satisfied (for now).

17p Mirage plus.

 

[B-Faithful]

(in my best Arnold Drummand voice)

What chu talk 'in 'bout Kevin? :lol:

I dont have a parker but I tried

17 Black Max
19 Black Max
17 Mirage plus
17 Rev 4
15 Rev 4
17 Enertia

Enertia worked best overall for me and that is what I run today. Rev4 gave me the best dead flat water economy and top end but rough water economy was poor and I couldnt hold bite while "bogging". I also couldnt get above 5500 and I wanted to be between 5500 and 5700 for max engine life.

Merc props are the best. Try your luck at the portal here:

http://appcenter.mercurymarine.com/propSelector/home.do

:lol:

 

[channel_surfer]

I just ordered a Rev 4 14 5/8 X 17, should be here by next weekend. I'm looking for good midrange MPG and good bite in turns. I have an extremely twisty creek on the way out to the bay and the stock yamaha three blade prop blows out in the turns like there's no tomorrow. I don't care about top end speed, I tend to keep the boat at about 4200 most of the time, I make a lot of runs out to the artificial reefs and I'm in no hurry especially with gas where it's at lately. I've heard a lot of good things about the rev 4 here so I figured I'd give it a shot.

 

[grouperjim]

Went out fishing with "The Otherline" today on his 2007 2520 MV (no bottom paint), f250 motor. Half a tank of gas, 1 cooler, and 4 poles. I trimmed it out and got 6k rpm@ 40 mph. He has the Rev 4 17p.

 

[esfishdoc]

Went out fishing with "The Otherline" today on his 2007 2520 MV (no bottom paint), f250 motor. Half a tank of gas, 1 cooler, and 4 poles. I trimmed it out and got 6k rpm@ 40 mph. He has the Rev 4 17p.

When you say a 2007 MV do you mean the hull iwith 16 degrees? I always think of the MV as the older hulls with 14 degrees. I thought they didn't make an MV in 2007? Just trying to keep my hulls straight.

Richard

 

[esfishdoc]

Went out fishing with "The Otherline" today on his 2007 2520 MV (no bottom paint), f250 motor. Half a tank of gas, 1 cooler, and 4 poles. I trimmed it out and got 6k rpm@ 40 mph. He has the Rev 4 17p.

When you say a 2007 MV do you mean the hull iwith 16 degrees? I always think of the MV as the older hulls with 14 degrees. I thought they didn't make an MV in 2007? Just trying to keep my hulls straight.

Richard

Answered my own question..... The Otherline has a 16 degree hull.....

 

[channel_surfer]

Just put a rev 4 on my 2520SL (16 degree MV) and like it a lot. Read here:

http://www.classicparker.com/phpBB2/vie ... php?t=4465

 

[TunaJoe]

Went out fishing with "The Otherline" today on his 2007 2520 MV (no bottom paint), f250 motor. Half a tank of gas, 1 cooler, and 4 poles. I trimmed it out and got 6k rpm@ 40 mph. He has the Rev 4 17p.

Is this the prop that came with boat from the factory? Or did he change it out?

 

[grouperjim]

Joe:

The 17p Rev 4 is not the original prop. I think the original was a Yamaha 15x17 3 blade black teflon coated.

 

[TunaJoe]

Thanks Jim

I have a 2007 2520 with a 250 and am getting about 2.5mpg at 4300-4500rpm's
I'm not broken in yet so I can't rev her up yet.
Don't know that much about prop science so I'm hesitant to change things out.