I assume those graphs were with 8s2p? It looks like you were pulling close to 9,000 watts. I don't know if a 1p setup will provide that much juice, or if it does your packs might not like it.
I've seen graphs with over 11,000 watts in a 5ive-T (onroad) with a 2028 and an mgm esc.
I think you need to move up to a neu 2230 and an mgm 40063 and 12s2p
Just to be safe...