CKR 0 Posted April 7, 2009 Maybe someone can answer this? Any of you Guys or Girls done any numbering on a dirt track car. If you will please what is the minimum size for the numbers. Thanks CKR Share this post Link to post Share on other sites
sarconastic 29 Posted April 8, 2009 It varies by racing Authority and track. I know for example IMCA requires an 18" Number on both doors in our area, A 6" number on the visor of the windshield and a 6" number on the rear of the car. But local tracks can modify to meet their standards, some tracks rules say a 20" letter. Best to check the rules of that track or just stay 20" or above and you'll be ok. http://www.imca.com/rules.php It's also different from class to class, ie, latemodel to Modified. Share this post Link to post Share on other sites