Quote:
Originally Posted by ShinyaPGH
On the spring rate, it does seem unusual. But just from watching so many of the HotVersion and Best Motoring videos on Youtube, Japanese race drivers who test for these JDM tuners typically HATE understeer. And having such high spring rate in the rear ensures the car will not understeer on corner exits. Higher spring rate with better damping seem to work better for our heavy Z34 cars. The car has more tendencies to oversteer on mid turn and exits now, and I've been able to dial them out with adjusting compression and sway bars.
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HKS and Bilstein most notably setup there rates to match the oem Frequency balance. Considering the rear spring design and motion ratios, the harder rear spring is not unusual.
Do you notice the car rotate quickly when turning abruptly into corners? OR does it load up and start to drift with a bit of latency?
Also have you tried setting the front dampers a bit stiffer than the rear? What do you notice?