[Fot] VDCA, SVRA, VRG, VSCCA Tire Rules

[Mark Cook]

All,

So, I it is time to replace my Hoosier TDRs on my TR6.  This TR6 was
previously run in SCCA with Hoosier R7 SM7.5 (Spec Miata).   When I
purchased the TR6 In 2024, then current VDCA/SVRA tire rules did not allow
these tires and I switched to the TDRs.

In 2026 SVRA and VDCA changed the rules for Group 8/CP to allow the Hoosier
R7/R8, as well as the Toyo Proxes RR.  It appears that VRG and VSCCA
continue to require fully treaded tires in CP/DP classes, like the Hoosier
Speedster and TDR.  Though, VRG is deferring to other organizations tire
rules in joint events (VIR / Summit Point with VDCA as example).

I think most of you run in VDCA Group 3, but has anyone running in Group 8
CP/DP changed or considering changing to Hoosier R8s or Toyo Proxes RR?

Thanks,

Mark Cook
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