I would have thought it wouldn't be the best idea to swap different dampers in and out between track days. Surely with different shocks the car needs the geo setting to be optimised for each set of shocks/springs?
Good question. What do we refer to when we talk about geo? I think there are three aspects, 1, setting the geometry to manufacturers specifications (as the manufacturer failed to do so or you have clouted a kerb). 2, Setting the geometry to other settings. I think most 'tuners' adjust front camber and front and rear toe, to more 'aggressive' settings, that are less of a compromise than the 'factory' settings.
The third aspect is optimising the geo to the current suspension.
The spring/shock unit fits on two fixed positions. If I remove and replace the same unit the geometry cannot have altered. If I fit a unit with a different ride height, the 'static' geo will have changed, but not the overall geo.
On my current car, I am satisfied the current geometry settings are reasonably accurate. In other words, the car does not display any unpleasant handling characteristics. Putting on the VXR units would make very little difference to the ride height, and therefore to the static geo.
I will be bolting the Nitrons on this weekend. If I alter the ride height (undecided at the mo), it would be worthwhile optimising the geo to that ride height. If I leave the ride height the same, then there is no need to adjust.
Oh, one other factor, the old car with non factory geo chewed up the outside edge of the front tyres. For road and occasional track use, I can live with negative camber on the fronts for the sake of the tyres
