I have a base 370z with hotchkis anti sway bars set on the second hole. What would cause the car's backend to break loose during a very agressive accelleration. Most often from 2nd gear to 3rd gear. I need to let off the accellerator for a bit to collect it then get back  into it.

Bill

Same thing happens to me. I sometimes happens from 3rd to 4th on occasion as well. Do you have traction control off? It normally happens when i do that with it off

I have never run into this and I'm putting down +55 whp over stock the rear wheels at 315 rwhp. I'm also running full coilover suspension with Stillen sways set to the tightest setting.

Something sounds very fishy here. Are you on stock rubber? Are you talking about in a straight line or during turning etc.?

Now at the track, with my traction control off sure, I have to feather the throttle in turns because of the power and the rear end breaking loose but for the street....?

I never have any problem with Brakes. These are my brakes

http://www.boostparts.com/goodridge-stainless-steel-brake-line-kit-nissan-370z-2010-up.html

Hope your problem's will be solved

I never have any problem with Brakes. These are my brakes

http://www.boostparts.com/goodridge...10-up.html

Hope your problem's will be solved