A bit more runtime?

Hey Guys,

Been running my 8T leccy with a Hyperion 6500mah 4S pack, MMM and MM2200kv motor.

If I drop the LVC to 3.0v per cell then I might scrape a 20 minute final on the track but runtime is a concern!

The current setup i have toned right down on the ESC settings so it's manageable and driveable at our race track, so i'm wondering whether changing the motor to a Castleneu 1800kv might mean longer runtimes without a noticeable drop in performance??

Any guidance appreciated as always guys!