Thanks for the help. I took my B4 to an empty parking lot for some speed runs.
After 25 mins or so it didnt thermal so I guess im good to go.
If you want a good gear ratio for an 8.5 people look no further. 23/81 is good.
I had to cut the shell some to fit my XBR esc in the car.
It's close to the same size as the Havok esc.