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Each Class will have trophies awarded for the top three fastest speeds (not exceeding the Tech Speed, if there is one).
The Class you run in is determined by your choice on your entry form, as long as you and your vehicle pass tech inspection for that class. You may be reclassified before or during the event, either voluntarily (see below), by Breakout (see below), or if deemed necessary by the Race Director.
Be sure to read the Breakout Rule to see what happens if you should exceed your Tech Speed limit. It is possible that you could be bumped up to a higher speed class. However, that cannot happen unless you, your vehicle and equipment qualify for that higher class. If you “break out”, and for some reason you can’t be “bumped up” (for example, inadequate tires for the higher class), then your day could be done. (This possibility is one good reason to have higher-rated tires and safety equipment than might normally be required for your class. Plus, it’s just a good idea. Also please read the Voluntary Class Change rule for another reason to have better tires.)
If you are not sure about your safety equipment (especially tires), or any of the rules, requirements, or specifications, please contact the appropriate official with any questions (See How to Reach Us, page 1).
Description of Divisions:
Note for PURE STREET division only: Vehicles must be currently registered and licensed with a current proof-of-insurance card.
PURE STREET: is a special Division for unmodified street-licensed cars. Tires and Wheels must be the same size and rating as stock, as listed on the door jamb sticker. A fire extinguisher is required. No other modifications OF ANY KIND (except cosmetic-only) are allowed. In particular, any stock speed limiter must remain intact. This division has several speed-limit classes ranging up to 170 MPH.
AUTO B, AUTO A: For cars in various speed-limit Classes. B is up to 170 MPH, A is up to 190. Safety equipment requirements increase with each division.
AUTO UNLIMITED: Top speeds are not limited. Extensive safety equipment is required. This Division/Class is for any car that expects to exceed 190 MPH. Previous racing experience required.
MOTORCYCLE B, MOTORCYCLE A: For motorcycles in various speed-limit Classes. There are several speed Classes within each Division, ranging up to 180 MPH. No distinction is made with regard to displacement or modifications.
MOTORCYCLE UNLIMITED: Top speeds are not limited. Four classes based on displacement and power adders. The best tires and safety equipment and previous race experience are required.
Voluntary Class Change Rule
We anticipate that many entrants will be unaware of the true speed potential of their vehicle until they actually run it. In recognition of this, we are allowing one (and only one) voluntary change of class at the event, for each vehicle, subject to the following rules:
- You may voluntarily change the class you are registered in, once and only once.
- This change MUST take place prior to your second run. You must notify Registration and Scoring of your desired change, and they must approve it, before you run a second time. Once you do a second run, you lose the right to change under this rule.
- The class change can be up or down in speed, but must stay within the same Division. (Exceptions: Motorcycle A and B division entrants can change between the two; and Auto A division entrants can
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