confused about motor mount spacing??

[JEFFRO503]

Oh man..this is friggin' awesome!! i guess my brace will work then!! WWOOOooooHHooOooOo!! Now all i have to do is figure out which NUE motor to get. I understand I need a 1515 size , but don't quite understand the number's and letters afterwards. If i was looking for a good tourqe 1515 (running it on 4S or 5S that would get me upwards of about 45mph + for racing ..........which one would you go for? BTW....it's for an 1/8th scale Mugen or kyosho.



Jeff