I have been working on a speed run car for almost one year now. I called it the "X2". My original design was based on a RC10L3 with a Neu 2215/3Y, Castle Creations HV-110 and Thunder Power batteries. I have done about a year of testing and the 2wd drive platform with this amount of power has proven tricky. I kept blowing tires.

The "X2"
I decided to get another car to put this power system into. I decided to use the OFNA Ultra GTP. I am calling it the "X3"

"X3"

"X3"
I have a blog where I keep all of my progress updated
I am currently working on laying out the electronics (thats why the car looks so messy) and making the motor mount for the Neu 2215/3Y motor. I do practice runs on 8s, but the final high speed design will run on 12s. I post all my detailed info on my
blog but I will also keep this thread up to date on my progress.