I got the motor a few days ago and put it in yesterday. I ran it on a half charged pack and it definately pulls way harder than the 540c.

I put in a fully charged 8 cell packs and I was rolling around gunning it. It would spin the dirt hawgs on the pavement up till around 15mph. You could hear the tires lose traction. Then it caught me off guard when I was almost at a complete stop and gunned it, it did a 20 foot wheelie before I even knew what happened.

At a complete stop and then full throttle it will cog a until the cogging gains a little speed and then drive off, I usually limit the thottle if this happens. So I was doing 2 or 3mph rolling starts, just fast enough to eliminate the cogging problem and it still pulls a wheelie and then shifted on one tire and lost balance and cartwheeled for a good 20 feet. Wheelies are unpredictable though, sometimes it will go up fully, partially, or won't even try to.

Next on the list is some good road tires and maybe the 10T pinion. The ESC did get a little got.