easily answered questions

[t-maxxracer32]

hey for now i have a green machine motor with some gp3300s and it doesnt have too much torque. the top speed is fine but id rather torque. how do i up the torque and down the top speed? go lower on pinion teeth? higher? im not really sure and i couldnt find anything.

also for someoene who has the ice charger can you pm me. i have a question if im using the right settings for the gp 3300s i get a good 10-15 min runtime with them just needing to make sure

my dad used to be in rc and has alot of older packs. anyway i can rejuvinate these? (i have the ice charger so it think i can)

last one. my dad has a BUNCH of dewalt battery packs for his drills and i was wondering if they would be able to still work good enough to use. he has like 20-30 so it doesnt really matter how many i take i just dont wanna take them apart if they wont even work well enough to bother. can the ice charge those cells?

thanks alot for your help guys!