The guy from fine design tells me the XLT-4 motor goes about 45 in a 4 cell lipo powered savage and gets around 10 minutes of runtime with 3700 mah, I will be getting a 4000 mah, so so I should get around 10-12 minutes, which is perfect for me. Does anyone on here have any experience with that motor and also where can I get pinions for 1/8" shaft mod 1 style.