Originally Posted by
nitrohead5300
.....................I have heard that some of the brushless electric motors can turn 50,000 plus or more rpms , I don't know that much about boat motors are there any large boat motors that can turn that high??
Castle's 540 motors read "100,000 RPM max" or somethiing like that on all of them. I run a 7700kv 1406 motor on 4s which revs it to almost 114,000 rpm.