LOL i do not have alot of money that is why i ask for help? I did use the speed calc and at 3 cells i need a 17 tooth pinion and with 4 i only need a 13 so i will upgrade to 4 cels eventually and why you reccomend the 8xl instead of the 7xl ( more efficient ?) Thanks for the hel though
3s isnt much in a trugg.
it might work but i'm not sure.
if you really want to keep the current batt you could use a 6XL 2500Kv.
if you use 4s lipo, it will be great with an 8~9XL.
if you use 5s lipo you need either the 9 or 10 XL.