Thanks Maine , perhaps i wasn't to clear about that.
Again , I am no boat engineer , but from what I understand Formula hulls are highly regarded and in comparison with a Grady should have a better performance , even with outboards.
The reason i am going this route is that the Formula 330SS exactly fits my specs , I have had whalers and recently malibu's including the 24 LSV , its just not worth it on the ocean and now shifting to a nice party boat with some overnight amenities.
Really have looked at other boats , including the outboard power concept sport , there just isn't anything unless i go opposite of sporty and go Jeanneau Cap Camarat , not quite ready for that.
I guess i will be the first one converting a 330 SS , either way I will set a precedent...

Thank for your input.

Thanks knot 4 me , I know the 330 SS does just fine with sterndrives , but thats the point.
I can't keep them alive as described in my original post , due to having to be in salt water , humid conditions all year around.
I am just crazy about the 330 SS and I think its the maximum sized SS that can be converted and kept alive in salt water all year around.

Just my 2 cents worth........

Great idea, fully understand your position about outboards Vs. sterndrives for where you live. I think you will need more than 250 X 2 to get the big boat moving. 350's or the new 400's would be ideal but the cost may well blow out off the map. I think 300's would come close to achieving the desired result. There's plenty of decent Centre Consoles close to 10,000 lbs that will do 60 with twin 300's so I don't think 50 is out of the question given the extra weight and beam.

I presume you'll have to antifoul? Better keep your bottom spotless!!

Not a big fan of a bracket on something that size. I can imagine cutting the platform in the centre and mounting engines on the (re-designed) transom in a conventional manner. You'd end up with small integrated swim platforms on either side of your outboards.

Good luck whichever way you go, a bit project and I'd love to see pics...!!

RR

P.S. Check the sea Ray 370 Venture. http://www.boattest.com/boats/boat_video.aspx?ID=2752
A whopping 16,700 lbs as tested and 43.7 mph. True it's the latest design and all that but still a big heavy boat. MMmmm

Suzuki 300s are the best deal going.

250s would be risky imo. My boat is Jefferson marlago 35 and goes 53mph light load with 250s. But it's only 7600ish dry with the engines.

Since you're having a science experiment, ering on the side of extra power would be wise. 300hp zukes cost the same as 250s anyways.

I actually wouldn't even attempt the whole project but I'd really like to see how it turns out.

They only made this boat for a year or two......production has stopped.

Don't think your going to be happy with the results either

Production has stopped? Sure?
I'm not well informed but according to their website, the Venture is still a current boat in 2015. Would be a shame if production has ceased. Sea Ray haven't built many 'mistakes'. http://global.searay.com/page.aspx/p...0-Venture.aspx

RR

I'd venture to say that you will run into issues on acceleration and planing due to the reduction in torque and the much smaller blade area compared to the B3s. And the CG on the hull is going to be significant altered. Might want to give Formula a call, they might have some input.

My Nor-Tech 34 CC reportedly weighs in dry at 9K lbs. With twin 300s it runs low 60s with plenty of fuel, factory ran it 65.9 on test run, but we know it had little fuel or extra weight. With a full tanks, 270 gallons of gas, the key to getting it on plane is to have patients, it certainly is not a quick process. I know I'm comparing a boat engineered for outboards to a boat engineered for stern drives, but both boats are similar in size, weight and beam (10 ft).

Any update on this project?

I am very interested in seeing how it turns out.

Outboard Powered 330 SS
 

Did this project ever come to reality?
Im also thinking about it in my 280 ss and Formula now is selling with outboards