2011 OFFICIAL CNS RULE BOOK
IMPORTANT CNS FORMS -
2012 Vehicle Registration Form
2012 CNS ROOKIE REGISTRATION FORM
2012 Train Registration Form

Bookmark this page if you are a race driver or car owner at CNS. This is the page where you will find all the latest news regarding the operations at CNS that effect racers and car owners. Please check this section weekly so that you are up to date on the changes, and updates at Colorado National Speedway.
We have created a easy to remember weblink for this section at: http://coloradospeedway.com/tech
(please take note of it).
To: All Divisions
From: CNS Management and Tech
Starting on May 05, 2012 All Divisions will have their tires marked by CNS tech prior to qualifying. Teams must race the same tires as they qualified on in their main event. Teams may race on a different tires in their DASH races.
We hope this will help teams with tire cost and help keep the competion on a level playing field.
Thank you and good luck CNS Management and Tech.
We have found the need to have Lexan windshields in the DEMO X cars. A half windshield covering the drivers side of the front window will be adequate, 1/8th inch minimum thickness required.
RETRACTION!!!!!
After looking at all of the information we have decided to retract the following TECH NEWS update:
You will be allowed to run a maximum of 3 spring rubbers per spring.
Rubber hose wrapped around coils will not be allowed.
We will be reviewing this rule again after the 2012 season. Thank you for your cooperation CNS management.
The new tires are in at Colorado National Speedway. Tire sales start today from 3PM to 6PM and Johnny Witthar will be there to take your orders.
You can buy race tires at CNS every Tuesday and Thursday from 3 to 6PM.
The 602 crate engine for the Super Stock division is a option, not a mandatory rule addition for the 2012 season. There may have been some confusion regarding the new rule so we wanted to take this moment to make sure all the Super Stock competitors were aware that the 602 crate engine is an optional engine package and not a mandatory engine package. We hope this has helped clear up any miscommunication.
Going forward, we have no plans to make this engine the sole, mandatory option.
CNS Management
May 27th
-GAM race will be a 40 lapper with $1000 to win.
-Double points night.
June 30th
-Double points night.
Sept 2nd
-GAM race will be a 40 lapper.
-Double points night.
-Trains will replace the Figure 8s on the schedule tonight.
Sept 15th
-Figure 8s will replace the Trains on the schedule tonight.
Thank you,
CNS Managment
2012 Rule Book Addendum
Please click the above link to download a copy of the 2012 Rule Book addendum.Contact Art Kilgore with any questions or for clarification This e-mail address is being protected from spambots. You need JavaScript enabled to view it
Thanks to all the drivers and race teams for your input and support regarding the 2012 rule changes. We're looking forward to a great 2012 season!
Art Kilgore - Tech Director
Demo X Rules
Anyone interested in participating in the Demo X division, please print the 2012 Demo X rules.
Contact either Allan or Jeremy to participate:
Allan Carson - 970-381-1807
Jeremy Lange -
This e-mail address is being protected from spambots. You need JavaScript enabled to view it
We're excited to have Demo X on the schedule 7 TIMES for the 2012 season!
CNS Management
- 1) Side mirrors will be permitted and must not protrude beyond the vehicle's door panel and must not be constructed of glass.
- 2) Tread Width:
- a) 81" maximum, measured from outermost part of the tire at spindle height, zero tow in, front and rear are presented for inspection - no tolerance.
- 3) Clutch/Transmissions - These sentences will be deleted from the 2011 rule book:
- a) Clutch must be inside bell housing.
- b) Clutch and flywheel must attach to crankshaft in conventional manner and rotate with crankshaft at all times.
- c) Clutch must be a minimum of 5.5" in diameter.
- 4) Suspension - This sentence will be deleted from the 2011 rule book:
- a) It is recommended that the right front spindle only be an aftermarket heavy duty type.
- 5) Mandatory track tire will be 8” Hoosier slick F53 for the left side & F75 for the right side. 2011 tires may not be used in competition for the 2012 season.
Reference 2011 rule book for all other Grand American Modified rules.
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