Also, I think with the electric motor, reverse can also work with the one-way transmission (engine won't stall since it has the one-way bearing right?).
In that case, I think I'll go with the 3.3 since I'll probably end up swapping out the Phillips screws for hex screws too, and I don't mind having a bit more power. Thanks for the suggestions!
Yeah, that's similar to what I was thinking, using the torque from the electric motor for low-speed...
I've had this idea for quite a while and did a little research into this. So basically what I was thinking would be to add an electric motor in addition to the nitro engine which will hopefully add more power to the car while making it more efficient, but I'm still largely undecided on the...