Famicom/NES Timing Clock

[Doomkid]

I stumbled upon this hilarious and creepy video that is worth watching:

http://www.youtube.com/watch?v=Jz909NrfHZg

And it got me thinking.. How would one go about speeding up their NES/Famicom clock speed? Playing Kart Fighter "Turbo" would be nothing short of amazing.. I've searched around on YouTube, but this video is all I could really find =/

[MLX]

Well the xtal is just going crazy from what I understood.
It is possible to overclock a NES, but there's no point in doing this:
http://www.youtube.com/watch?v=g4m-wyFC5-M
And it won't make the game faster, just remove slowdowns and make CPU hotter.