Savage 5t Convert, what power package is best ??

[lincpimp]

Well, higher voltage is better, so i would go with 8s.

As far as the esc goes, not much choice for a car esc like that. Startup on the hv castle escs is supposed to be good.

Will you run the flux tranny or the 2/3 speed? And how fast?

You want motor rpms to be around 35-40k with a neu for best efficiency and to allow for lower gearing to eas. So that should be pretty easy to figure, 1600kv for 6s, 1300kv for 8s. My 600kv motor on 10s is a bit slow, but I plan to go up to 12s, when a decent car esc that can handle 12s comes out.