RE: RC Aerodyne 500 size Apache
The kit recondmends a 1200 to 1300 KV motor with a 13 or 14 pinion. This is the first scale that I have to do this mutch mods on. It's a little work but it seems not to be to complicated. The video posted on here is very good to give you a look at what is to be expected. I think it is a quailty kit. i will try to post as I go.