I've got an 88 280 sport that had 330's in it and I'm dropping in fresh 525sc clones, I'm curious as to what other guys have gotten for top speed and what they were running for power and props....
Part of the reason is because I need to decide whether or not I'm going to have to add hydraulic steering.

Also any input or advise will be greatly appreciated. I only ran the boat a hand full of times and not for long at all. I did like the boat and that's why I decided no throw some more power at it....

Here is an older discussion on speed that may give you some ideas! http://www.offshoreonly.com/forums/b...ort-280-a.html

I would think with that HP, stock x, and right prop low to maybe mid 80's. I think most will tell you anything over 70 should have hydraulic steering.

Fleg had real good results with the raised x on his 320. So if your looking for all out speed I would look at some shorties. I talked with a guy that had some big power in a 280 once. Said the boat got real squirly after 85 and he was touching 90's. Personally if it was me set it up for a nice cruise speed of 75 and enjoy the ride. Don;t think these boats were designed with all out speed in mind.

Thanks Nightlife1970. Wasn't sure if I'd see that kind of speeds, but yes at those speeds steering will be a must.

Any other input would be greatly appreciated.

Bought an '88 Sport 280 new from Performance Marine in Oxford Ma. Ran it up here on Sebago for 12 seasons, 1000 hrs. Post some pics!

Any idea what I'll need for props guts?? I ran 23 3blades Mirage Plus's with the fresh 330's and ran rite around 65.....
I've borrowed a set of 26 Bravo 4 blades. Water testing this week but any input will help.

call me when your ready to go out. you might want to find some 27 mirage plus also. and you of all people need hydraulic steering on everything! If theres a limit to be pushed you will look past it!

who am I to judge, I;m just as bad lol

It's on my man!!!!! And so is the steering, bought the setup from Mikes Panther.... And put bigger tabs on her.