Amendments to the 2016 F-8 Rules effective Jan 1, 2017

  1. 25lb must be bolted to the front stub on fabricated stub cars. Fabricated stubs must maintain same geometry as original. 
  2. No penalty for fabricated rear clip. 
  3. Any year body is permitted. No lightweight or carbon fiber components. Body must resemble factory body (no dirt car wedge bodies). Mixing year and make of body parts is allowed. 
  4. Full factory firewall must be used. 
  5. Aluminum water pump is allowed. 
  6. 602 crate engine 3100 lbs. 604 crate engine 3200 lbs

Figure 8 Division Rules Meeting

There will be a Figure 8 meeting which will be held at Taco Loco in Dacono on highway 52 just of east of Jerry D’s (Downtown Dacono). The meeting will be this Thursday December 29th 2016 at 6PM. The meeting will be for the purpose of discussing changes and proposals for the Figure 8 division for the 2017 season and beyond. Please plan to attend to have your voice heard.

Grand American Modified Rule Refinements

After receiving feedback from many of the Grand American Modified drivers and teams we will be refining the rules as follows. Bump stops will be legal in the GAM division. And the overwhelming response was to NOT allow the 525 crate motor in the Grand American Modified division therefore we will also be making that change. We want to thank everyone who took the time to help us refine the rules for the GAM division.

Supermodifieds at CNS in 2017

The CNS Supermodifieds will be running a limited schedule for 2017. The rules will remain essentially the same as last year except the cars will be tech’d and officiated by the CNS staff. We hope to have the schedule out by the first of the year. If you have any general questions or feedback please contact If you have tech questions you can email Please keep an on on this Tech News section of the CNS website for…

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Grand American Modified Rules Adjustments for 2017

Here are the results of the Rules Committee meeting in regard to changes and amendments to the Grand American Modified rules for the 2017 season at CNS. Aluminum cylinder heads are allowed with 25 pounds added to each frame rail at the dog-leg (on both sides). You no longer need to add 50 pounds to your total weight.   GM CT525 legal to CNS Super Late Model specifications will be allowed. In addition to the 50 lbs requirement for aluminum…

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Results of Rules Committee Meeting

Here are the results of the Rules Committee meeting in regard to changes and amendments to the rules for the 2017 season at CNS. General Rules 1. The penalty for a major rule infraction will be as follows: loss of points and purse for the night and 100 points subtracted from the seasons point total. An major rule infraction is defined as intentional infraction that may result in a significant performance advantage. An example would be any type of tire…

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Rules Proposals for 2017

Attention CNS drivers and teams. A few weeks back we asked for feedback and proposals from all CNS participants and we have compiled that feedback and placed it in a PDF file here. Please download the PDF file and review it carefully. We will be finalizing the 2017 rules very soon so we need your final feedback on these proposals. We are having a meeting on Tuesday December 6th to determine the final rules changes for the 2017 season so you…

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Drivers, Teams, we want your input

The staff at CNS is preparing to review all the existing rules and procedures and make any necessary changes for the 2017 season. Therefore we want input from the drivers and teams so we can continue to improve the product at CNS. If you have input about tech rules or procedures at the track please send in your suggestions (before November 18th) to Thank you in advance for your participation and support of Colorado National Speedway!

Final Test & Tune Session Friday September 30th

There will be one last Test & Tune session Friday September 30th at CNS. This will be the night before Challenge Cup so this is a great opportunity to prepare for the big night of racing. As normal the session runs from  3PM until dark and it’s $25 per car & driver and $5 for everyone else.

Pro Trucks Added To Challenge Cup

Great news! The Snap-On Tools Pro Trucks have been added to the Challenge Cup schedule on October 1st. Divisions running are: Gillet Vet Clinic Super Late Models, Snap-On Tools Pro Trucks, Great Scott’s Eatery Super Stocks combined with the Lincoln College Pure Stocks. We will also race the Legends Cars, DEMOX, and have Circle Drags during Intermission. It’s going to be a HUGE night of racing, trick-or-treating with the fans and a FIREWORKS show to close out the 2016 racing…

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