Not sure if this is the right place for this question, but some silver can F1 hot shoe might know:
I am getting ready to wire up a 540-J motor in a HPI F10. I just have no idea what these motors like as far as FDR. The book suggests 4.41.
Track I will be running on is pretty open and flowing asphalt with a 160' straight. Does 4.4 sound close for my intended use on said track?
I don't mind testing pinions, but this car needs a 64p gear and I have all 48p!!