14.2 second 1/3 mile? (oval)

oh, another quick question.. from what i've read, the packs shouldn't be discharged below 3.3v/cell? the highest cutoff on the quark is 3.0v.. and it goes all the way down to 2.2v?
i've got it at 3v right now, but is that safe?

also, i'm re-charging one of the packs right now, and it's at 998mah.. so i've run the car for about 12 minutes total, and it's drained about 2000mah. so w/ 8000mah, it looks like I'll have about 45min run times @60mph