Bold off season idea

[mrcid]

Anyone here given thought or considered yanking the internal combustion engine (Mercury 120XR in my case) and replacing it with a a comparable DC motor and batteries? The thought of quiet running intrigues me.

 

[kaylix]

Definitely following this thread. I'm with a recently dead 175xr2.

 

[Weeb]

I think the battery weight might be a bit much.

 

[Joekerr1]

I think it could be done with the engine connected to a prop, but the weight of the batteries would reduce the amount of passengers you could take.

 

[mrcid]

I'm thinking the same thing. The battery situation is gonna be the limiting factor.

 

[FSH 210 Sport]

The other day while trolling on the lake with my Ulterra, a couple pulled up to chat in their aluminum fishing boat that had a bimini top.. we were about 10 yards if that apart and they were keeping station with me. On the back of their boat was a Honda 200 hp outboard. The only thing I could hear from that motor was the pisser stream hitting the water.. impressively quiet.

 

[mrcid]

Just did some quick calculations last night. I don't think this project is truly do-able. To make this with enough energy stored onboard to run for a decent amount of time would require some really hefty batteries. More than what the weight of this small boat could handle. I wouldn't put the effort into this unless I could get a decent 2-3hr run time on a single charge. This would require way too much energy storage which would weight too much.

Guess I'll wait around for that nuclear reactor motor.

I'll do a few more tweaks/upgrades to this 1996 SS Mirage/Mercury SportJet 120XR and probably sell it here shortly. I've got my eye on a bigger boat.

 

[Joekerr1]

I say convert it into a 4-stroke outboard. I plan to do this to my 2-stroke Sugar Sand Tango when it eventually dies...

 

[mrcid]

Interesting!

 

[Jim_in_Delaware]

I've seen some conversions to electric motors, but it is often on sailboats.

Takes a lot of energy to power a boat, so many electric boats run lower than displacement speeds. As an example here is a Duffy electric boat running with their standard (8) six volt deep cycle battery bank:



Jim

 

[anmut]

A few years ago a guy replaced the 3.0 mercruiser in his Bayliner with a Tesla motor. Pretty cool.

Enthusiast builds all-electric speed boat using Tesla battery modules - Electrek

We have seen a couple of awesome all-electric boats in the past year, such as Frank Stephenson’s creation and the Alfastreet Energy 23C. Now, we have a tinkerer and EV enthusiast, Scott Masterson, who has converted a 2016 Bayliner 175 into an all-electric speed boat. Mr. Masterson, who I had the...

electrek.co