Hp too much,?

maineiac5586

Senior Chief Petty Officer
Joined
Feb 14, 2009
Messages
729
Looking at a yamaha vmax 175 hp 2 stroke hpdi 20 inch shsft. I have a wellcraft 190 ccf with max hp rating of 150. Is this a bad idea? Looks like It weighs about 100 lbs more than a 130 yamaha picture is my current setup
 

Attachments

  • Screenshot_20231106_085533_Facebook.jpg
    Screenshot_20231106_085533_Facebook.jpg
    1.1 MB · Views: 3

jimmbo

Supreme Mariner
Joined
May 24, 2004
Messages
13,464
About 12 hrs ago you were going to stick a 25" Motor on this boat. Having multiple threads on your Repowering is going to be a Problem
 

dingbat

Supreme Mariner
Joined
Nov 20, 2001
Messages
16,150
Looking at a yamaha vmax 175 hp 2 stroke hpdi 20 inch shsft. I have a wellcraft 190 ccf with max hp rating of 150. Is this a bad idea? Looks like It weighs about 100 lbs more than a 130 yamaha picture is my current setup
Neighbor has the same boat.
He replaced the Merc 90, 2 stroke it came with for a Yammie F150.

Long story…. Boat pulled heavy to right after repower. Tried everything. Asked that I come down to his marina to take a look.

Dealer hung 25” motor. Took a lawyer to get proper shaft length motor hung on the boat.

Boat runs good with proper leg on boat. Personally, too much motor for the boat for our normal (big water) conditions. The pounding going above 1/2 throttle on all but flat days is ridiculous. Can make the boat hard to control at times
 

redneck joe

Supreme Mariner
Joined
Mar 18, 2009
Messages
11,095
Yes, not a bad idea but not a smart one. Imo the incremental gain is not worth time and effort. You are right at the sweet spot for actual hp to recommended. I have a 50 hp on my 115 rated so i might bump up someday. If i was at a 90 or 100, no way id upgrade.

What are you trying to achieve? How often do you run WOT? Have you looked at changing props to achieve your goal?
 

redneck joe

Supreme Mariner
Joined
Mar 18, 2009
Messages
11,095
About 12 hrs ago you were going to stick a 25" Motor on this boat. Having multiple threads on your Repowering is going to be a Problem
Yes please keep to one thread for best info from the group.
 

jbcurt00

Moderator
Staff member
Joined
Oct 25, 2011
Messages
25,061
Looking at a yamaha vmax 175 hp 2 stroke hpdi 20 inch shsft. I have a wellcraft 190 ccf with max hp rating of 150.
Some states consider overpowering the rated capacity reckless operation regardless of how diligent you are w the throttle.

WV is 1, is Maine?

Theres a reason for the 150 max rating
 

Scott Danforth

Grumpy Vintage Moderator still playing with boats
Staff member
Joined
Jul 23, 2011
Messages
49,856
Is there a problem with the 130hp? Or is this a desire to go faster?

If you want to go faster, many times it requires a different hull
 

maineiac5586

Senior Chief Petty Officer
Joined
Feb 14, 2009
Messages
729
Neighbor has the same boat.
He replaced the Merc 90, 2 stroke it came with for a Yammie F150.

Long story…. Boat pulled heavy to right after repower. Tried everything. Asked that I come down to his marina to take a look.

Dealer hung 25” motor. Took a lawyer to get proper shaft length motor hung on the boat.

Boat runs good with proper leg on boat. Personally, too much motor for the boat for our normal (big water) conditions. The pounding going above 1/2 throttle on all but flat days is ridiculous. Can make the boat hard to control at times
Was that motor mounted on a jack plate or did the dealer install it right to the transom effectively casing the prop to be 5 inches lower than designed?
 

aspeck

Moderator
Staff member
Joined
May 29, 2003
Messages
18,953
Ok so I'm leaning towards the 130 hp. Sorry for multiple threads
Don’t worry Maineiac, you are actually dealing with 2 different issues and trying to determine which motor to go with. I think your best bet is to change the shaft and go with the right motor for the job.
 

maineiac5586

Senior Chief Petty Officer
Joined
Feb 14, 2009
Messages
729
Don’t worry Maineiac, you are actually dealing with 2 different issues and trying to determine which motor to go with. I think your best bet is to change the shaft and go with the right motor for the w
 

maineiac5586

Senior Chief Petty Officer
Joined
Feb 14, 2009
Messages
729
Well after all this I did buy the 25 inch motor but I'm going to resell it. Found a 20 inch 130 hp I'm going to buy. Thanks for everyone's help and input. Here's the 130 hp 20 inches
 

Attachments

  • Screenshot_20240121_195607_Facebook.jpg
    Screenshot_20240121_195607_Facebook.jpg
    1.1 MB · Views: 1
Top