What is the top speed for the gsr with a stock ecu? I went 140, but my friend argues that the top speed is 130, and that I was just on a hill and got to 140 by natural forces.
I think i read somewhere before the est. top speed is 168 or so. I myself have only seen 140 w/o the use of nitrous. Thought about getting it to 140 and hitting it, but would be to much of a strain on the motor.
it would be hard to say since u cant see 168 on the speedo, u would need a satilite assisted tracker or a cop shooting a radar to know the true speed, once u have modified wheels the speedo is crap after 120.