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New 2750 NuEra MCOB twin outboards
This build has been going on for a while now but never made its way on to this forum.
As the title says, it is a Lavey Craft 2750 NuEra mid cabin open bow with twin outboards. The engines of choice for this build are twin Mercury 300xs. Yes, I know and understand that the biggest outboard craze right now is the Merc 400R but this customer specifically wanted the 300xs and being a custom boat, the customer gets what the customer wants. Lavey Craft does not have an outboard specific mold for the 2750 so a little bit of cutting and modifying was needed to get the engines to fit. In some of the pictures you will notice that they were able to keep a small useable swim platform on each side of the engines, pretty cool feature especially when some other boats completely eliminate the integrated swim platform in their builds. I hope you enjoy the pictures and I will do my best to update the build as it goes along! https://i.imgur.com/EDUj7eE.jpg https://i.imgur.com/bjKwDjW.jpg https://i.imgur.com/0f81CDB.jpg https://i.imgur.com/ChKXHqM.jpg |
Swim platform modification.
https://i.imgur.com/dFROxwl.jpg https://i.imgur.com/PrwDoRG.jpg https://i.imgur.com/9a0ya8M.jpg https://i.imgur.com/Hulh1Ea.jpg The boat is now over at our interior shop getting mocked up. Pictures are from when it was dropped off. https://i.imgur.com/lhp3Euo.jpg https://i.imgur.com/q58VvIw.jpg |
nice :) work
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2750 is hands down the sexiest boat made! Wish I could find a used one.
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The boat is coming along very nice!
Here are a couple recent pics that were sent to me. Dash layout is done, both engines are fully mounted along with the trim tabs. The rear compartment flooring has started. Can barely see it in the pics but the dash is installed... Next up in line should be under deck carpet, finish up the wiring, stereo, install interior... https://i.imgur.com/ADOhaEu.jpg https://i.imgur.com/77oPrmJ.jpg https://i.imgur.com/54WiPHl.jpg https://i.imgur.com/hoBavgW.jpg https://i.imgur.com/Q71uQed.jpg https://i.imgur.com/ogxzywP.jpg https://i.imgur.com/z9p7B2D.jpg |
This boat hit the water this week to start it's testing and setup. So far it has ran low 80's with stock 26 Bravo1 RS. They have since raised the engines up 1" and are waiting on a couple different sets of props to continue testing and setup the next couple days. If any of you will be at the Lake Havasu Desert Storm Poker Run, this boat will be there so keep an eye out!
https://i.imgur.com/RoKRVGN.jpg https://i.imgur.com/o3qd7WM.jpg https://i.imgur.com/krg6r9J.jpg https://i.imgur.com/V2zXw9j.jpg https://i.imgur.com/GtR3uHZ.jpg https://i.imgur.com/SBPciKt.jpg https://i.imgur.com/54XNegd.jpg https://i.imgur.com/2ShKQ2i.jpg https://i.imgur.com/2ciiCDl.jpg https://i.imgur.com/7OP5FvI.jpg |
Doing a little bit of prop slip calculations... I had to recheck this about 10 times on two different websites to make sure because it sounded outrageous!
On the original very first run with this boat it was getting 1% slip!! https://i.imgur.com/ag1Eg9r.png |
The 300 motors have 1.62 gears 8% slip with motors 1-1/2 below bottom at 5,900 rpms 11% slip with motors 1/2 below at 6,200 rpm Still good numbers, with lots more there with more prop testing, and playing with motor heights over the next few weeks. |
With the jack plate set 1/2" below with 5 people (4 dudes and a chick) and 50 gallons on the boat and a small amount of stuff it was pretty easy to blast up to 82mph with very conservative trim.
It was an 82 degree day on the water and the elevation is about 1290 feet above sea level. The boats a dream with absolutely zero drama even in dead calm flat water and will hold plane at 18 MPH. Just mash it and go and trim it up bit by bit as you roll through the MPH. Your grandma could drive it and It definitely turns better than my big single. Pull back a bit and the thing is an effortless cruiser at 75 with 5 peeps and 50 gallons on board. There is more to go with props and tuning still, but as a bone stock all rounder what I experienced yesterday is pretty hard to beat. UD https://i.imgur.com/xUnMG4F.png |
Posting an update on here for anyone interested on this build.
So far the best speed is 88.4 MPH at 5900 RPM spinning 31 pitch Spinelli DR4's. The handling is amazing and will only continue to get better! |
I was just wondering how the cockpit was configured since the outboards would negate the necessity of the engine compartment so I checked out the pictures and it looks like the cockpit is the same. What is in the back where the sterndrive used to be?
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Originally Posted by fastestbowtie
(Post 4628338)
I was just wondering how the cockpit was configured since the outboards would negate the necessity of the engine compartment so I checked out the pictures and it looks like the cockpit is the same. What is in the back where the sterndrive used to be?
So in order for Lavey to make that cockpit bigger; they would have to pop the deck out on its own, cut the cockpit liner to extend it, patch and repair that extension, and then bond the deck and hull together. I can't say 100% for sure, but I'm sure it is more than possible if the customer wanted that to be done because I've seen Lavey do some crazy amazing things with fiberglass. |
Been waiting since the beginning of this project to hear the dialed in performance results.
Nothing short of Spectacular! Kudos to the team at Lavey! Definitely a successful extension to the line and a testament to the brand and it's heritage. Classy, Super Fast and Built to Last! Congrats Guys, she's a winner! Do I dare say possible retrofit to an existing 2750 stern-drive? Pair of 400R's? :rolleyes: |
The boat looks sensational and interesting to read about the build, hull and deck joined in the mold and also the liner design. I was surprised to see it come out with a foredeck and then cut the open bow, I just assumed there wouldn't have been a different mold for the MCOB. I love the simplicity of the transom and still retained the profile with the boarding platforms. I'd love to do that to my Donzi! RR . |
This boat has some new top end numbers this week
These speeds are all "real world" numbers with a fully loaded boat with anchor and all other day boating supplies as if you'd be using it on any ordinary day and 1/2 tank of fuel (aprox. 50 gal). The dry weight of this boat is 5100lbs. 91 MPH!! Spinning 14-7/8 x 30 Dewald Cleavers, 1/2" bellow the bottom, at 6100 RPM and still getting 25 PSI of water pressure so there's plenty of room to raise the engines up for more speed. https://cimg0.ibsrv.net/gimg/www.off...fa6d4bab5b.jpg https://cimg5.ibsrv.net/gimg/www.off...0634881b65.jpg https://cimg6.ibsrv.net/gimg/www.off...7d56bbc627.jpg |
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40-80mph acceleration |
90mph top speed
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Looks like this boat has been repowered with 400's and is listed for sale. Why the change of heart? Whats the future plan?
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Originally Posted by fastestbowtie
(Post 4882764)
Looks like this boat has been repowered with 400's and is listed for sale. Why the change of heart? Whats the future plan?
Future plan is to continue to race but in a bigger V bottom. For the class he races in that is capped at 100mph (i think), a bigger boat would be more beneficial and more comfortable. A bigger boat will also make his open ocean endurance runs a bit more comfortable. |
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