7xl/ mamba max!!

[phildogg]

ok went ahead and took the esc out of my rusty to use in the E for a few runs on the 7XL.. ran ok,not alot of speed though.. (this is 12 cells gp3300 )the motor stayed cool 130deg. about 75 outside now. the esc got hot.. 170 deg, but running the bec circuit on MM. ( I figure that was cause of heat.) batts stayed cool 100-110)what does everyone think? I was more speed though.I figure 4s li-po will help,maybe 5s? opinions please.. also gonna get a ubec.. gearing is 18/66 now.. ok to gear up with a ubec?
phil