I bought mine used and don't know much of its history. It has the 34t pinion installed and appears to be going faster than 50mph. I don't have an itouch or iphone, but I do have an ipad and ordered an extension cable which should be here by next week. In the mean time I'm trying to figure out if this car is unlocked.
So when I'm maxing out, the car acts like its hitting a rev limiter. I can hear it going then stopping then going when its topping out. I'm hoping that is a sign of being locked and not a indicator of another problem.