TDS formula? Welcome to the GGC Autocross Program › Forums › GGC Autocross Forums › Autocross Discussion › TDS formula? This topic has 2 replies, 2 voices, and was last updated 6 years, 4 months ago by Chris Fountain. Viewing 3 posts - 1 through 3 (of 3 total) Author Posts June 18, 2018 at 3:22 pm #10473 Chris FountainParticipant Who has or can point me to the formula used for TDS time adjustments based on the car classifications? June 18, 2018 at 3:53 pm #10474 Dennis BParticipant I believe it is the Gonzo formula (here: https://www.bmwautocross.com/autocross/about.php) June 18, 2018 at 5:35 pm #10475 Chris FountainParticipant Thanks Author Posts Viewing 3 posts - 1 through 3 (of 3 total) You must be logged in to reply to this topic. Log In Username: Password: Keep me signed in Log In