Erik Steinbring

I want to convert my Rio to brushless with as little mods as possible. I already have a charger capable up to a 4S LIPO so I would like to stay in line with that.

From what I have read I need to find a motor first then build around that. I think that I have found a motor that will fit in the existing mounts, coupler and cooling coil. http://www.hobbyking.com/hobbyking/s..._Inrunner.html. Is this a good motor choice for this conversion or do I need to think more KV?

I would like to use the stock single battery mount across the transom if possible. What KV 3S LIPO would be suggested for a ballpark 8 minute run?

I know that a new ESC will be needed any suggestions as to specs if this motor is a good choice? I want more speed but reliability is also a consideration.

Thank you in advance for any help and advice you can provide to steer me in the right direction.

Goldenduff

I know very little about boats other than kv x voltage should be close to 30k. So 4 cell not 3 would be good. Runtimes will depend on amp draw which will depend on prop?

Vdubit

For something sem-fast and reliable I just converted to an 1800kv motor and aSeaking 180 version 2 ESCand am very pleased. This was for a 29" plastic hull running a 40mm 1.6 prop with run times near 10 mintues and decent speeds.When converting this project i based my specs on similar factory builtboats because reliabilitywas my main goal. Pick avessel similar to your goals and copy the driveline. I did go through several ESC before goingwiththe 180. After some help from Steve at Offshoreelectrics.com he set me straight about the math/conversions/kv/voltage and led me to the right ESC... Go above and beyond specs of the motor for reliability. Again, set a goal for the project, and since it doesnt sound like your trying to set any speed records,base the finished product on an exsisting successful product and adjust from there.

Offshoreelectrics.com