quick question
 

just wondering the safe amount of cells to run on a 9920 before i should be worried? would i be safe to run 16 cells on a 9xl, i would imagine things gettin pretty toasty so should i put a fan on the esc?

thanx

You shouldn't need a fan if its geared correctly. You also shouldn't worry unless your running right at the cell limit as well...

alright thanx, what type of gearing should i run with 9xl on 16 cells?
im runnin the stock spur wit a g maxx chassis and standard bowties.
thanx

Check Brians speedcalculator, it will help you out.