What size motor????

bluebrownie

Petty Officer 1st Class
Joined
Feb 19, 2008
Messages
201
hey everyone... i have a 12 footer...deepv... aluminum...rated for 15hp...i have a 15hp gamefisher, circa `1995... runs great... but if i have 2 adults in the boat, SLOW SLOW SLOW...like 5-10 mph if i am lucky... with jsut me, i can get going like 20.... eventhough its rated for 15 hp...can i throw on a 20 or 25hp...? its a heavy boat, plywood floor, 3 seats....thx for your help
 

Steve Mahler

Petty Officer 1st Class
Joined
Oct 10, 2006
Messages
361
Re: What size motor????

something wrong with your motor, gamefishers are not the most powerful of motors, but still, it should sing along with 2 people. i used to plane my 12' with an old evinrude 7.5hp
 

bluebrownie

Petty Officer 1st Class
Joined
Feb 19, 2008
Messages
201
Re: What size motor????

seems like its running great... with just me, i can cruise pretty good and get up on plane...with 2 in the boat... and conditions are a bit bumpy, i trudge thru the water like a tug...i tried adjusting the tilt...has 5 settings.... nothing much mattered.... maybe the gamefisher jsut doesnt' avhe the balls.... i skimmed down the lake yesterday to a fishing hole... took me 10 minutes...with 2 in teh boat, took nearly 30
 

DECK SWABBER 58

Lieutenant Commander
Joined
Aug 14, 2009
Messages
1,913
Re: What size motor????

Possibly your motor is only running on one cylinder?
It will still run "smooth" just lack power.

My 9.8 Tohatsu 4 stroke easily planes a 16' jon boat
with two people, gear and 100+ lbs. worth of dogs.
 

joebob14

Petty Officer 2nd Class
Joined
Feb 27, 2010
Messages
170
Re: What size motor????

I have a 15 pushing a 14' trihul, much heavier than your aluminum v. It moves at 20 with two people no problem. I should think there is a problem with your motor. Just curios is it a long or short shaft motor? A longshaft on a boat made for A shortshaft will have alot more drag moving through the water.
 

NYBo

Admiral
Joined
Oct 23, 2008
Messages
7,107
Re: What size motor????

How heavy are the 2 adults, and how heavy is the gear you're hauling? You may also improve performance by shifting the load.
 

F_R

Supreme Mariner
Joined
Jul 7, 2006
Messages
28,226
Re: What size motor????

If it goes 20 with you alone in the boat, it is running ok. You are overloading the boat. Overpowering it is not the solution. That can make it faster, but dangerous.
 
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