Quote:
Originally Posted by Yui-Chan
1) Correction... it needs weaker/less/looser compression damping force under fast speed damping (bumps, rumble strips, quick jars, etc.), but still strong/more/stiff damping force under slow speed damping (turns, braking, accel, straights)
2) Correction... it needs more rebound damping under fast speed damping to compensate for post bumps and to recover after a bump and set the tire back into the road for traction.
Correct me if I'm wrong though.
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My gut feeling after driving the GT86 over track & road surfaces plus the the BRZ on road is that both have dampers which are simply too strong for the springs. Basically both lack composure like my E87 1er on back roads before I put on the Birds B1 kit - which ran on lower spring rates with weaker damping all round. If I was going to do significant track time I'd go for higher rate springs but for back road driving I feel that a softer more compliant suspension would be better even if that does mean more body roll. Of course the fast that the Birds B1 kit was so good may be clouding my judgment. On my 111R the upgraded suspension was more-or-less perfect out of the box on stock settings so I never really touched it.
I'm still waiting on my car to be delivered so right now I'm hypothesising on about 45-60 min driving time.