Hey! new to the forums here and I am going to be purchasing a Gymkhana fiesta. HUGE ken block fan so I want this sucker asap! I am just curious as to how to get it to 50mph capabilities. I know I need another battery, but do I need a more powerful battery? or is one matching the one it comes with ok? also it says on the description that in order to achieve this speed you need the optional pinion gear and speed connector. is the speed connector just the series connector or is it something else? and which pinion gear would be best for high speed? I have never been good with gearing so I would just like some guidance. Thanks for the help!