First off this post wasn't about you, how many motors you have, or what you can do with them. The OP was questioning about a 340 he had and was thinking about replacing his 318 with it.
I don't hate 318's, but have said many times I'd never use one in a performance build. Too many 360's out there.
I'm not sure where it turned into a 318 vrs 340 debate and the clowns came out, but it also brought out a jackass.