Help with Prop on 2520

[captmccadie]

I recently repowered my 2520 DVSC with notched transom from a Yamaha OX66 250 to a 2006 Yamaha F250 with left hand rotation. (Yes I definately have a 2520 Deep V with a single engine on a notched transom).

I called Parker and talked with their engineer about the prop. He recommended a yamaha black stainless 15x15 three blade. With this prop I get 6100 rpms WOT and I am making 17 knots. With three people on board and normal fishing gear I need to turn 5600 rpms to stay on plane and go 14 knots.

I tried a True Turn 15 1/4x15 and I only got 5200 rpms WOT.

Does anyone have this same exact hull, transom and motor who has already been through the pains of propping?

Thanks,

Brian

 

[Megabyte]

6100 rpm and 17 kts?
I know the DV requires more horsepower than the MV, but I think you have other issues.
5600 rpms to stay on plane and go 14 knots isn't right either.

Can you tell how deep your motor is mounted?
A photo of the mounting holes would help.
Something tells me it is too deep.

I think you need to check your motor depth first and correct it if needed.
Next, I would call Ken at PropGods...

Edit: Are you certain that the prop you have mounted is for a LH rotation motor?

 

[captmccadie]

Judging by the fact that it goes forward when I put it in "forward", I am pretty sure I have a left hand prop on a left handed gear.


So anyways, does anyone have this same hull, same transom and same engine out there?

 

[ceblizzard]

I'll bet that if you put a Rev 4 17 pitch prop on your F250, your problems will be solved. Purchased mine through Prop Gods. When I received it I noticed It was shipped from Ed's Marine in Virginia.

Charlie
Eden, Maryland