What are you using for a brushless motor for bilge pumps? I put together a HK switch with a relay to run a stinger, but by the time I have done all that I may as well have put the extra esc with a brushless motor…..
Let me look at what I have found. I came across a few while the half unit pump project was active... will be active again soon... http://www.hobbyking.com/hobbyking/store/__71065__Turnigy_Typhoon_450H_2215H_Heli_Motor_3550kv_450_class_AR_Warehouse_.html?strSearch=turnigy 450H Many of the 450 class heli motors have a 1/8 shaft although you may have to drill new mount holes for the motor. I am sure something is out there but usually I can find right mount pattern wrong shaft or right shaft wrong mount pattern
There is also this one, little bit cheaper, almost the same kv, but not sensored. http://www.hobbyking.com/hobbyking/...ckstar_1_10_13_0T_3000KV_Brushless_Motor.html
That one works, too. For the sensored one, if you're not using the sensor feature, you just don't hook it up
so we are looking for something around 3000kv? What do you think of these? http://www.hobbyking.com/hobbyking/...eli_Motor_3450kv_450_class_US_Warehouse_.html $13.78 http://www.hobbyking.com/hobbyking/..._Brushless_Outrunner_Motor_US_Warehouse_.html $23.67 http://www.hobbyking.com/hobbyking/...450_Size_Heli_Motor_3700kv_US_Warehouse_.html http://www.ebay.com/itm/Trex-450-Mo...114110?hash=item1e9a52753e:g:VFsAAOSwstxU7EJp $14.99
3000kv will get you to almost 20k RPM at 6.4v. I like the first one in that list the most. I would be tempted to try something over 4000kv though if you had some extra money.
Be careful about trying to up the kv. One of my first brushless attempts used a 4000 kv motor. It pumped like nothing you have ever seen ... at 81 amps of draw. Heh.
Hours and hours of time looking. In order to have the bolt patter match up to BC or Strike pump, I need to be looking at car motors. Most if not all motors that are designed for cars are inrunners. Is anyone running inrunners for our applications. All the pictures that I have seen show outrunners.
I was using a 4300 kv brushless inrunner. Same shaft size and mount layout on a stock BC pump. Only reason nothing melted was the heavy duty wire and using a 40ah LiFE cell that could take the amperage. Lately, I am using 1300kv outrunners on 12v. Bigger isn't better. Small compact outrunners are putting out the same power as 540 brushed motors at better efficiency.
inrunners work fine and have less chances of bits getting in them just make certain you let them dry good.
