Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community - FT86CLUB - View Single Post - Squishy feeling movement from rear end during hard corners

gonzo · 10-25-2015, 04:41 PM

Whenever I take long, hard (lol) corners my rear end feels like it's shifting sideways on the lateral axis. Not sure if this is considered body roll since it feels like just lateral movement of the body, not rotation on its longitudinal axis (which is body roll). The tires stay planted when it happens and I don't hear them reaching limits of grip (sliding or squealing sounds). It feels as if the tires are gripping a lot but the chassis is held to the suspension using soft bushings. So the chassis pulls sideways before the tires reach limits of grip. I feel it more in the rear than the front.

What is causing this lateral movement? And can I stop the movement without losing grip? Will roll bars helps?

I have michelin PSS, trd springs, tranny mount, rear subframe inserts, camber bolts, and aligned for max negative front camber (rear had even negative camber, toe is 0).

Thanks!

10-25-2015, 04:41 PM	#1
gonzo Senior Member Join Date: Jul 2012 Drives: frs Location: Cali Posts: 379 Thanks: 355 Thanked 54 Times in 43 Posts Mentioned: 2 Post(s) Tagged: 0 Thread(s)	Squishy feeling movement from rear end during hard corners Whenever I take long, hard (lol) corners my rear end feels like it's shifting sideways on the lateral axis. Not sure if this is considered body roll since it feels like just lateral movement of the body, not rotation on its longitudinal axis (which is body roll). The tires stay planted when it happens and I don't hear them reaching limits of grip (sliding or squealing sounds). It feels as if the tires are gripping a lot but the chassis is held to the suspension using soft bushings. So the chassis pulls sideways before the tires reach limits of grip. I feel it more in the rear than the front. What is causing this lateral movement? And can I stop the movement without losing grip? Will roll bars helps? I have michelin PSS, trd springs, tranny mount, rear subframe inserts, camber bolts, and aligned for max negative front camber (rear had even negative camber, toe is 0). Thanks!