I recently bought the special edition penzoil-zexel skyline (27Mhz) and red rx-7 (57Mhz) and the rx-7 runs consistantly with no problems (except slower than the gt-r), but the GT-R has problems all the time, it will stop working for seamingly no reason and then if i charge it...nothing, so then if i take it apart (take out rear axel, gears, heatsink, and motor, and put it back together then it does work again for a while, is this just interfernce because of the frequency or is it something else?

ps-sorry it is so long just tring to be through