Remove upper limits to roll cage attachment points?
#37528 from Touring Committee · Recommended to the Board · Minutes (2025-02 Fastrack)
In GCR, Section 9.4.D.1., change as follows:
"(Effective 4/1/25) 1. Improved Touring, Spec Miata, B-Spec, and C-Spec, T2, T3 and T4 classes –The roll cage must attach to the
vehicle structure within the passenger compartment in a minimum of 6 points and a maximum of 8 points, maximum of 12
points for T2, T3 and T4, as specified in these rules. T2 and T3 only - Up to an additional 6 mounting points may be used with a
100# pound penalty. These include, but are not limited to, A-Pillar, B-Pillar, Roof, Rocker, but may not extend past the fire wall.
The roll cage may not pass through any structural member, including the firewall, except Miata rear main hoop braces may pass
through the package tray. Seam welding is not permitted in T2, T3 and T4."