what size motor

[seakingbob]

I have a 1978 Blue Fin Aluminum boat with a 40 HP evinrude.It has a side console.I was thinking about repowering it.Does anyone know what size HP I could go up to without having to much power or under powered.I will use the boat for fishing and some water sports with the kids.A little tubing and sking.
Thanks

 

[steelespike]

Re: what size motor

There may be a plate on the transom indicating capacity and hp.
Give us the details on the boat.length,beam deepest part transom height.
There is a coastgard formula for figureing hp..I don't have the address.Someone may be along with more info.

 

[tashasdaddy]

Re: what size motor

1978 Blue Fin Aluminum boat, does not tell us much.

 

[cbavier]

Re: what size motor

What does the plate say? That's the legal and safe limit.

 

[seakingbob]

Re: what size motor

There is no plate on the boat,It's Transom is 20'' and the beam is 67'' at the widest point the boat is 16'

 

[steelespike]

Re: what size motor

Bare bones open utility?Floor?Bait well? etc.
Typical bare bones tiller boats in your demensions run 25 to 30 hp
Remote might be 35 hp.