can a t8 19000kv buggy motor be used on a erevo?

[Finnster]

You mean 1900 kv right? ;)

It can be done np. Just wont have quite the TQ the slightly longer truggy motor will have, but by no means the smallest motor ever to run in an Erevo. The 60mm 2000kv Medusa motors on 4S were used with great results before the longer versions came out.

You will need to gear it a bit lower maybe, but if I was just bashing and wanting to save the $$$, I'd run it and have fun and only upgrade if it wasn't as much power as wanted. I've run the CC 2650 motor on 5S in my Revo just fine. (may have actually liked it better than the larger 1515s as it wasn't so backflip prone, but had good top end.)