Quote:
Originally Posted by Norm Peterson
This sentence . . .
ties the restriction to what a single car could have been ordered with. Since a car cannot be two different trims you don't get to mix and match.
BUT . . . the SCCA Solo rules do go on to allow you to convert one trim to another - provided that you make every single change between the car you have and the car you want to use something from. IOW, you'd have to make it an exact clone.
That would mean to install Z/28 wheels and tires on a ZL1 you'd have to swap the powertrain, lose all of the "features" that are unavailable on the Z/28, swap the MRC to Multimatics, install thin rear glass, etc., etc. A protest might even be upheld if you didn't strip out all of the now-excess ZL1 wiring.
Up until this year, tires in stock category only had to be "DOT-approved", meaning that everybody who was anybody ran R-comps. But this is changing with the introduction of the "street" category, where minimum treadwear is 140 this year and goes up to 200 in another year. That already puts the Trofeos off the table for the minimum-preparation category (i.e. closest to production line stock, which is what we're assuming here for doing only a ZL1 wheel/tire upgrade to Z/28 spec).
Norm
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Just to clarify: a car as in a model or a group within a model? Still unclear about what SCCA means by a "model" as if Camaro was one than I think it would be permitted to pick and choose OEM components for that model and apply them to a specific group?
Regarding the new tire rules, are they the same for both Solo and SoloII?
I've read about it wrt autocross, but not road racing. How would one apply SCCA rules to have a Z/28 compete with a ZL1? Is that even possible?