?'s on setup

[Revo_crazy231]

ok thanks but after doing some more reading i think the 8xl motor would be a better choice (let me know if not) ???

40 mph sounds great for bashing but the runtimes are a little low in my opinion unless this is what i should expect??

i was aiming for 30-40 min, of runtime. if this is even possible please let me know and tell me wut i would have to do for the runtimes to be around this(battery size ect.. ??