Suspension setups
#46
Drifting
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Maybe it's using kerbs, controlling stiffer springs and the heavier braking. You wouldn't drive as hard for as long on the street.
#48
Drifting
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I don't know either. I initially set the bump and rebound to what someone said was a good trackday setup, on smooth roads it was great, on bumpy roads it's too harsh. I suppose you'd just put up with it on a bumpy track.
#49
Rennlist Member
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Also, you're hitting bumps at 2x or more the speed you hit them in street driving.
All of this will make the shocks cycle more and heat up the fluid more.
Not only does the hot fluid break down over time and lose it's properties, but shock oil is also hydroscopic, like brake fluid, meaning it attracts moisture.