MAX HP ON MY 1983 GRADY

[jbeyo]

Guys,
I have a repower guestion for you.
I have a 1983 245 Tournament Edition DC. This boat has had the tramson modified from the original design that had a bracket that allowed the motor to tilt inside of the tramson. All that has been changed to a regular grady bracket.
I am now running a 1999 225 Mercury 2 stroke and would like to step up a bit on power with a used 4 stroke.
What would be the max HP I could put on this rig? Or who would I contact at Grady White for tec help in this arena?
Thanks in advance for the feed back.
jack

 

[Curmudgeon]

:uhm The 243 was rated at 280 hp, don't think I'd fudge on that unless you're real comfortable with the transom job and bracket installation ...

 

[jbeyo]

Thanks Curmudgeon for the info.
I did not want to over max the rating.
Will probably go with a 250 HP.
Where did you go to find the max rating for this model?
Thanks.

 

[Curmudgeon]

Grady catalog for 1983. See their web site under Customer Service ... :wink:

 

[jbeyo]

That is what I was looking for.
Thank you.

 

[Grog]

Weren't the ratings gross not net in '83? 280 gross is less than 250 net, I'd go over everything (transom, strigers, knees,...) before hanging a 250 on the back. A 250 4 stroke will give more top end but the same or possibly less holeshot than the 225 2 stroke. Plus how does it sit now with the bracket? What changes with another 200 pounds do to the ride as well as the way it sits?