E-maxx w/ Feigao 540C 8XL pinion selection

[mickeymoose]

Hi guy's, I don't have an E-Maxx but I have built a custom brushless lst2 that uses a quark 125b, Feigao 8XL, E-MAXX tranny with 2nd gear only, Proliine 40 series Ground Hawgs 6.5" dia, and the LST2 diff ratio is 3.30:1, I am currently running a 20t pinion and 64t spur. with 12 GP3300 batts top speed was only about 28mph. The batteries only lasted about 8-9 minutes and at the end of the run temperature's were, esc 115, motor temps were getting into mid to upper 140's, and the batteries low160's. I just got some maxamps 6000mah Lipo's ( 2ea. 7.4v packs in series ) and the truck is sick. it has so much torque it's hard to keep from flipping it over, run times are about 25 minutes and top speeds are about 35mph or so. It's alot of fun now that I've gone lipo. the motor temps are also down to 135-140, the batteries are only 100, and the esc is still 115-120. I know this is a little long winded but I hope it helps. Oh yeah you might want to ask Mike, or some of the other more experienced guy's here what they think about possibly going with a L size motor instead of an XL. The XL has a ton of torque, might be to much for an E-Maxx?