300hp Shaft length
 

I’ve searched the forum and can’t find a definitive answer. For those who have done it, what length shaft outboard should I put on a double flotation bracket? I have seen some people use a 25 inch and I have seen some people use a 30 inch.

30" is the norm. No Bones recently put a 25" on a single bracket on their 23 Sceptre.

Hermco double gets a 30” motor

Great. Thanks. 30” 300 G2 it is.

After talking to multiple people I decided to have Stoner boat works make my bracket. He is making it a double tub that is 80" wide with a 25" setback. He told me I will be able to run a 25" shaft engine just fine. After he told me that, today I ordered a 2018 Evinrude G2 300. Fingers crossed this all works out.

The clearance on a G2 when totally tilted up is like 29", maybe 28", from the mounting bracket of the engine to the wall of the transom, I'm not positive let me look. I'llsee if I can find the document from Evinrude.

OK I'm back, check out this post. Because the eTec tilts at 80 degrees you have to be careful for clearance. Looks to be right at 26". You should be good.

http://www.etecownersgroup.com/post/...id-339-8138819

Yeah, I can attest the 30” bracket provides ample room for a full tilt allowing the lower to be completely out of the water.

Thanks guys. The shop I'm going through told me they have mounted a G2 on a 25" platform and it's close but works fine

I saw on Stoner Boatworks' Instagram page what might be your bracket under construction. Yours??

Really? Here is mine....

Yup. Just looked. That's all mine. Can't wait until it's all done.

Well, I found out the hard way today that I need a 30” motor. Thankfully evinrude was awesome about it and they are exchanging the motor. Another week and it will be finished. Here are some snaps from today’s visit.

Outstanding!! My brother just picked his boat up today with the 25" shaft 250 HO G2 installed....finally. With the 20 pitch Evinrude four blade prop it hits 60 mph at 6000 rpm. 3310 rpm it's at 26 mph. However it needs to be noted this is without the T-top, which won't happen by next week's trip to Marathon, only 45 gallons of fuel and a very light load. Call it luck, or just listening and learning from all the others on this site who have installed brackets, but we nailed the install on the bracket height!! The bracket was built with a 27" set back, a 13 degree mounting face and negative 2 degrees (15) on the engine mounting plate. We mounted the top of the front edge 26 1/2" up from the keel which put the center of the top mounting holes 29 1/2" up from the keel. On plane the AV plate is about 1/4" above the water on the middle mounting hole. We went with the 2" up for each 12" of set back rule. We'll post pics soon. Good luck!!!!!

Can’t wait to see pix.

hi jnamowitz ,Friend, I have understood that the top mount of your bracket had been in a height of 27 "to bottom keel, how it was not possible to mount a shaft 25" engine?,a shaft motor 30 "I think it would have to raise too much, at least 7" Above the top mount, is that correct?

oh great!!!,I see good numbers and very good information,that measure of 29 1/2 "up from the keel, is in direct line to the bottom with a stick under the keel ?
eager to see those pictures,thank you for sharing so valuable information

Yes. DonV's brother has a much smaller bracket than me and was able,e to use the 25" motor. My bracket is much bigger and needed the 30" motor.

It's with a stick pressed up to the keel running out past the bracket, then measured straight down to the stick.....to the center of the top mounting holes....to get the 29 1/2" number. In most cases the top mounting holes are 2' below the top of the bracket/transom. So...the mounting holes are actually 23" from the keel on a normal 25" SeaCraft transom. We added the 2" per 12" setback with the mounting holes not top of bracket.