when I did the swap.. I went from a 400' roll out to a 100'

topend was was gained big time.. I was happy with and went into a kyosho f-16

but looking at the numbers on the .18 vertex I doubt youll have the plower to pull a 40 sized trainer your best bet is to buy a another glow motor and save the hassle for something else

there are alot of of cheap options out just look around

race