20t motor in a RS boat - slower than stock - why?
I took the stock motor out of my son's Radio Shacks Tsumani boat and replaced it with a 20t Stinger and the thing runs slower. the EC is getting hotter then w/the original motor. I've spayed the motor (brake cleaner - it was clean) and oiled the bearings before putting it in. I must say it's a used motor that I got off Ebay, but I still thought it would be as fast if not about 20% faster then what was in there. Any comments or ideas - were newbies.
thanks