2958 Brushless Rc Boat Motor, Surpass Hobby 4950KV Brushless Motor with Cooling Set for RC Boat

The media could not be loaded.  Works great in a 36mm motor mount! Clocked 36mph on the water. Has to be atleast twice the speed as the original brushed motor and NICD batteries in this old Kyosho Viper. This is so fastI had to add trim tabs and steering fins too.

Good motor. easy to use and the sleeve fits nicely.

This 4200kv delivered good punch off the line and comes with an aluminum o-ring type liquid cooled jacket. It also comes with spare o-rings and fits snuggly enough so you don't have to worry about it moving on the motor case. The motors case looks well built with chamfered edges and it's multiple mounting holes made install a direct bolt on. While checking heat on multiple runs it came back cooler than the esc and performed as I had hoped it would. I ran 3s packs with a stock prop and had like I mentioned before good start off the line with speed numbers limited due to the lower 3s packs.

Pretty good unit for my little jet boat. Not many 3660 cans around this cheap.