Quote:
Originally Posted by YarkoDrives
last event with a RSB. snap oversteer, as I tried to correct out of the spin at end of video.
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That was power oversteer, i.e. due to aggressive throttle input. It occurred right after an aggressive gear shift broke the rear traction.
Oversteer is not your problem, understeer is. You are driving at very high front slip angles and are overdriving your car. It only oversteers when provoked.
I have tried disconnecting the OE rear bar on a skid pad (logging lateral g, and steering angle to get understeer gradient). With fairly stiff springs on coil-overs I could not detect any difference with the bar disconnected. With softer springs, more of the total roll stiffness comes from the bars, so it might make a small difference in your case, but it would be moving your handling more towards understeer in that case, which won't help the root problem.
Beware when disconnecting one end link, the bar may rub on the drive shaft boot at certain roll angles and one-wheel bump conditions.