Originally Posted by rocca30
50 mm if your raceing roar in the front windsheild
6.1.13 Cooling holes: Bodies for on-road fuel-powered cars (other than touring vehicle bodies)
may have up to 1/3 of the windshield cut out. Bodies used on off-road fuel-powered cars
may have up to 1/2 the windshield cut out. For touring vehicle windshields, one cooling
opening is permitted, limited to a maximum of 60mm in any direction.
6.1.8: All molded-in windows must be clearly identified. Side and rear windows may be cut out
unless otherwise stated in class rules or specifications. Open windshields are not allowed,
except for holes defined in the relevant class rules or specifications. A sunshade band at
the top of the windshield is permitted.