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Awesome! (Or is that a photoshop?) That looks great who built the engine mount, or were you able to buy off the shelf? What size/make outboards did you go with? If you are willing I would really appreciate any details you can provide about the cost, conversion issues, transom reinforcement, etc.
Someone told me (paraphrasing) “for every 12” you move the engines back, the prop needs to come up 1 inch” (I don’t recall the exact numbers, could have been 6 to 1). So, I’m guessing the b3 props were about 6-12” below the bottom? Of course, this calculation is for an outboard boat that you are adding an engine mount to, so not apples to apples. Sounds like if you had to replace the manifold/riser/elbows a few times, you’d be even. And you can’t top the reliability and ease of maintenance or upgrading. The optimax engines are 2 stroke right? I think the 2 strokes are a bit noisier than the 4, but maintenance seems to be better, and I think the extra torque (in the low rpm range) you get from a 2 stroke compared to the 4 should help on a larger boat as well.
Regarding the flotation, if you add weight to the inside of the mount, does it sit better? Like fill it partially with water or something?
Congrats, and enjoy..
Saw y'all there rafted up when we went to the beach with the little one. Hoping to get back there in a couple weeks or so. If I see you I'll definitely stop by. Those storms that rolled through were something else. We were watching the clouds from Nancy's while waiting for our mudslides thinking that doesn't look good. As soon as our drink where ready we ran for the dinghy and hit 2' slop in the harbor heading back to the boat. We managed to get to the boat without spilling a drop of our drinks!I saw your boat In Oak Bluffs last weekend. I was impressed and meant to stop by to tell you so. The name on my boat is 3D we are usually on 11 row. Please stop by next time. I was getting ready to post here about ur boat. I'm glad you did first.
Someone on the FB Club Sea Ray did it to their boat as well, although, could be the same person, but if I recall, it was a different boat. Good luck, and let us know...We have recently redone our cockpit and I have just finished rebuilding our cabin on our 2000 Sundancer 270. We have built in a bar back lot with LED’s, ripped our walls and carpet added sea deck everywhere and live our boat but after rebuilding the I/O’s multiple times because of the corrosive salt water environment, we are over it. We are getting ready to put a pair of outboards on her. I really enjoyed seeing your project. I will PM you to pick your brain a bit more if it is ok.
Go to FB, join Club Sea Ray group if you are not already, search Outboard conversion. Lots of pictures...Alexander added twin 350 Yamahas to an Amberjack, cleaned up the bilge, engine mount added below the existing swim platform, so entire swim platform remains, added aluminum braces from transom to stringers to ensure the engines are supported. 54mph at 6100rpm and cruising around 30mph at 4200rpm, new props, 24 pitch Bravo 4-blades. 58.7mph top end at 5500rpm and 30.2mph at 3500 rpm.Thanks, I will include some pics and technical help as I work through this major project. First step is I need to find a trailer I can buy or borrow so I can get her off the water for a while. Some of my friends have done this with their speed boats and the concept isn’t much different. I do like how Jgren used optimax 225’s and they were enough for his 29’ Amberjack. The 225’s are a serious option for me and now I know they will be enough power. However my first choice would be a good pair of Verado 250s, if I can find a deal.