111 on a brushless is the record 24 .75 volt cells that's 18 volts

but i can hit 90 with a fieago 6s on 8 cells geared correctly so if i add some more cells i can hit higher speeds and since it's a straight i can have it over geared so i THINK i can hit 110

how many cells can you use on a 6s and what controller hsould i use?