National Staff Greg G. Posted April 26, 2019 National Staff Share Posted April 26, 2019 (edited) Technical Bulletin: We have revised the wording and punctuation of the hood vent rule revision from April 24th. There is no functional change--just improved clarity of the wording. "5) Hood replacement/modification for venting and/or weight reduction only. Vent lips/flaps/dams, louvers, and vent insert mounting hardware must not protrude more than 3/8” from the hood surface. (“aero” hood pins are permitted)." Enforcement of the revised Hood Vent rules in ST1-4 & SU Rules, section 6.3.5, and ST5 & ST6 Rules, section 6.1.4.5 will begin on July 1, 2019. (Note that these do not apply to SU, ST1, ST2, or non-BTM Aero ST3 vehicles). Edited December 27, 2019 by Greg G. Link to comment Share on other sites More sharing options...
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