Sponsored by Griptec
NOTICE: Rules are subject to change without notice.
Open Comp is a racing class OPEN TO ALL MAKES AND MODELS to race. This class will run the standard Open Comp format with a 1-tenth (1/10th) breakout.
All cars in competition must be painted or wrapped. Advertising graphics are permitted on the body but must not compete with Mod Motor Mustangs and Mod Nationals vendors and sponsors. All decals that are not approved at ModNationals must be removed and if the decal is part of the wrap, it must be covered up before the car is eligible to run. No exceptions. Those who do not comply will be asked to leave with no refund.
The class will be qualified by positive reaction time (r/t) closest to “.000” based on a Pro .500 Tree. “.000” is consider a perfect reaction time. Any negative r/t (-.001, -.059, etc.) will be placed at the bottom of the qualifying ladder. The more negative the r/t is, the further down the ladder the run will be placed. For situations in which identical reaction times are made, qualifying position will be based on a first-come, first served basis. The first occurring r/t will be placed at the #1 spot, the second occurrence of said r/t will be placed #2 and so forth. Class will be paired according to the qualifying positions, and then advance to the eliminations. If weather has caused the loss of one or more rounds of qualifying sessions, any entrants not qualified will be required to choose an index from the following list: 15.7, 15.0, 14.0, 13.0, 12.0, 11.0, 10.0, 9.0, 8.5. Competitor must submit their chosen index to the race director on the last day of qualifying. Competitors will compete with their chose index through eliminations. Any competitors who fail to submit their index on the qualifying day will automatically be assigned a 15.70 index.
Qualifying Information, Ladder Type, & Tree
32 car field and will be on a Sportsman ladder, Pro .500 Tree, auto start, 1/4 mile, courtesy stage mandatory.
Open to all vehicles and engines except dragsters. Any modifications, vehicle weight or power adders permitted. Pneumatic, electric, hydraulic, etc. shifters are prohibited. Trans-brakes and 2-steps are ok.
Delay boxes, cross-over boxes, or any “reaction-time related” electronic bracket racing aids prohibited in this class. Throttle stops and all Electronic related throttle-stop type accessories prohibited. All Trans-brake buttons must be on the approved NHRA list.
Spindle mount front wheels prohibited.
The quickest qualifying ET permitted in this class is 8.30l the slowest qualifying ET permitted in this class is a 15.70. Any qualifying passes quicker than 8.299 or slower than 15.701 will be disqualified and will not be counted. Competitors will be permitted to re-qualify if additional qualifying rounds are left. There is no ET limit (minimum or maximum) in eliminations. Competition will be regulated under standard NHRA “First or Worst” competition policy during qualifying and eliminations.
During qualifying and eliminations, it is the responsibility of the competitors to determine lane choice. If the competitors are unable to establish lane choice, a staging official will make the determination in the manned they choose (i.e.: coin flip, random choice, faster car, etc.).
Deep staging is OK. Courtesy staging is mandatory and will be enforced. The competitor deep staging must have “DEEP” displayed on both sides of the windows of the car. It is always the driver’s responsibility to stage the vehicle prior to the tree being activated. In any event, the driver MUST BE PREPARED to leave as soon as the final bulb is lit. A competitor with the word “DEEP” displayed on the window is not necessarily obligated to DEEP stage. All drivers must be prepared to leave once the final stage bulb is lit. The final staging motion, using applied power, must be in a forward motion going from pre-stage to stage. The Auto Start System will be activated and utilized in all ModNationals classes in 2016. It will be each driver’s responsibility to see that they properly stage with their last staging movement being a forward motion.
There is no minimum weight.
When in the vehicle, the driver is required to have all safety restraints systems (including helmet) on and securely fastened in the vehicle at all times.
A valid state or government issued driver’s license beyond a learner’s permit level mandatory for cars running 10.00 or slower. A valid NHRA competition license is mandatory for cars running 9.99 or quicker, at an NHRA Member Track. NHRA/IHRA competition license mandatory at an IHRA Member Track.
It is ultimately the competitor’s responsibility to familiarize themselves with the ModNationals class requirements as well as all NHRA safety requirements. The competitor agrees they bear the ultimate responsibility when it comes to safety and how it complies with NHRA rule books. The competitor also agrees that no one else other than the competitor is in the best position to know about how their particular race car has been constructed and how to safely operate it