the spitfire has the zx10 receiver, you can get a speed control and plug it into the throttle channel of the receiver, allowing you to use the stock TX & RX . Im going to upgrade my spitfire to lipo/brushless soon.
What power set-up are you thinking about for an upgrade?
Well, I do not want to go lipo, I have 6 of the 10.8V Nimh packs and two chargers for my Spit that I want to continue using. I was just wondering if there was a better motor to use than the $10 brushed cheapie. Not looking for a big power boost, maybe a little more powerful or efficient for longer flight times.