When the new springs were installed, the shocks were set full-soft to ease installation. For no particular reason, they were then set to 4-clicks as a starting point, even though they were at 8-clicks with the old springs. A quick test over speed bumps showed that the combination was too soft, giving a ride even softer than with the original springs. The shocks were increased to 6-clicks, which felt about right, firm but not harsh. It does make me wonder whether the shocks might have contributed to the problem; stiff shocks coupled with soft springs make the suspension act stiff during transitions, but not once stabilized. That is, in a long enough turn, the shocks could have had enough time to slowly compress until eventually the soft springs allowed the suspension to bottom – instant spin. It’s just a theory, but it might explain in part why the car did what it did.
Speed bumps aren’t really a valid test of whether the spring rate is now enough to prevent bottoming, but it’s a start. The bump stops were pushed down to serve as travel indicators and over the next few weeks they’ll be monitored. Still, it won’t be until the car’s back out on-track that total travel can be measured and quantified. No testing could happen today due to rain.