Go here -> http://scriptasylum.com/rc_speed/top_speed.html and input the values for different motor/battery combinations to see what will get you 60+ MPH but I have a felling that your going to burn something up if you try and sustain that kind of speed for more than a couple of seconds. I gear my 8e(15/45) for 30ish and my motor/esc (MM,1.5y 1800kv, 4s) never get above 130ish and I can run for 20+ minutes without a problem.