question on throttle and turning
 

I recently built a RC8Be Tekno coverted buggy. Once I got the electronics in I was doing some testing in the garage. I noticed if I have the trigger down and I am driving in a oval once I turn the wheel it loses throttle and it returns once the turn stops. I also have the same type issue if I am at a stand still with the wheels held in a turn it will not respond to throttle. Once I release the wheel it will take off.

This is all on a Futaba 3pks and with Futaba rx and servo. Is this normal behavior? I did seem to not notice this on my Hyper 10 the other day, but it is sensored. Still fairly new to electric so maybe this is something normal. Just thought I would ask.