Re: [electricboats] Converting an Allmand Sail 31 to electric

I did a conversion in a similar sized boat last year.  I used the 12KW motor you are considering and a similar battery assembly.  I have a heat exchanger cooling system with a coolant pump and a raw water pump.  I only need the raw water cooling for sustained speeds over 6 knots.   I made my own 3:1 reduction unit.  I wrote up a fairly detailed account with discussion on the choices I made. 
http://dan.pfeiffer.net/10m/electric_drive.htm

Dan Pfeiffer

On 2022-10-01 12:04 pm, elagusfil128@gmail.com wrote:

Hello! I have an Allmand Sail 31 sailboat and I removed its motor to convert it to electric. I would like to share my ideas and listen to recommendations from people with more experience before making purchases.

 

Engine:

I want to buy the 10KW or the 12KW thunderstruck-ev.com motor kit, I would like to know what you recommend.

 

When I removed the old motor I took out everything it had, including the cooler and the pump, the truth is that everything was in poor condition.

Now that I am going to buy the electric motor, if I choose the solution with liquid cooling I would have to buy the entire cooling system, and if I choose the air-cooled version it is not much of a problem because I have 2 new blowers that I was thinking of installing for an air conditioning but that idea was cancelled.

 

Does anyone have the 10KW air cooled motor? Have any problem?

 

I also plan to buy the support with the 2:1 reduction (although I don't know why when I go to buy it says 2.67:1?)

 

Batteries:

My idea is to build a battery bank with 16 Lifepo4 320 AH batteries and a 250A BMS. Read experiences about it?

 

Charger:

5000W Solar Inverter (already purchased)

It is this: https://www.aliexpress.us/item/3256803396031941.html

 

12V:

My idea is to have a common 12V battery and a DC-DC Converter that I already bought, this is the 60A version:

https://www.aliexpress.us/item/2251832330206798.html

 

 

Thank you very much for your support, and I will tell you about the whole process here and also on my YouTube channel that I started to allocate to this project. Cheers!

 

https://www.youtube.com/watch?v=vkq-EcKeYjA&t=112s

 

I appreciate your subscription and like, which helps with the YouTube algorithm.