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X-WR-CALNAME:FireBird Motorsports Park
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X-WR-CALDESC:Events for FireBird Motorsports Park
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DTSTART:20250101T000000
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DTSTART;TZID=UTC:20260213T080000
DTEND;TZID=UTC:20260215T220000
DTSTAMP:20260429T192059
CREATED:20251216T041122Z
LAST-MODIFIED:20251216T041122Z
UID:8349-1770969600-1771192800@racefirebird.com
SUMMARY:Concrete Clash
DESCRIPTION:Hosted by AtoZ Track Days \nFour drag racing clubs will unite at Firebird Motorsports Park for an exciting two-day competition. Visiting organizations West Coast NA and AFX will demonstrate their expertise on the 1/8-mile track\, while Arizona’s own AZ Grudge Racing and Cordes Performance Racing present both 1/8 mile and 1/4-mile racing classes\, highlighting top local talent. Those interested in challenging WCNA or AFX can purchase a tech card and participate\, with cash buy-ins available at each club’s booth in the pit area. For racers wishing to compete locally\, AZ Grudge Racing (1/8 mile) and CPR’s 1/4-mile index offer ideal opportunities. Additionally\, the Open Test N Tune class allows participants to test new setups. \nWest Coast N/A 10.5\n1/8 Mile Heads up (Naturally Aspirated)\nRace Format: Heads up / Double Elimination\nLight: Pro Tree\nPairing layout: Random chip draw each round (Unlimited Bye Runs)\nNo Time (Timing boards turned off)\nBuy in Cost: $100\nOfficial Rules\nPass NHRA Tech for ET & MPH\nMust be Naturally Aspirated. No nitrous\, turbo\, supercharger.\nDoor Cars & Trucks\nSteel Roof & Quarters – GM Corvettes excluded\nSmall block 2700 lbs w/ 29.5 x 10.5 or smaller\, no W’s.\nBig Block @ 2950 lbs w/ 28×10.5 or smaller no W’s. Equivalent size radial and 275 Pro ok.\nBig Block @ 3250 lbs minimum w/ 29.5×10.5 is allowed \nAmerican Nostalgia West\n1/8 Mile (5.80-7.0) or ¼ Mile (8.75-11.00)\nHeads up / Single elimination\nLight: .400 Pro Tree w/ Auto Start\nTiming Boards: On\nPairing layout: Random Chip Draw each round\nBuy in Cost: $150\nOfficial Rules\nNo tube frame cars\nNo power adders\, Nitrous\, turbo\, blower\nPeriod correct hood scoops\nSome exterior lettering paint/vinyl\nRide height at least 5” fender to ground\nThe manufacturer’s engine is in the car.\nFor example: Ford in Ford\, GM in GM\, and Mopar in Mopar\nNo fuel injection\, throttle stops\, or carb plate controls\nBack half allowed\nNo electronics – tranny brake allowed\, no delay box\nDeep stage is ok at your own peril\nNo sandbagging\, be near your qualifying time\nMust be a paid member\n26” minimum front tire\nDial to .250 ¼ mile and .100 ⅛ mile\nOne Bye allowed per race\n8.75 – 11.00 ¼ mile\n5.80 – 7.00 ⅛ mile \nAZ Grudge Racing: Small Tire\, Big Tire\, Small Tire Gangster (5.30 index)\, Street Muscle\n1/8 Mile\nHeads up / Single elimination\nNo buy backs\nLight: ProTree\nSmall Tire\, Big Tire\, Small Tire Gangsters: .400 Pro Tree w/ Auto Start\nStreet Muscle: .500 Pro Tree w/ Auto Start\nPairing layout: Random Chip Draw each round\nCash Buy in Cost\nSmall Tire: $200\nBig Tire: $200\nSmall Tire Gangster (5.30 index): $150\nStreet Muscle (6.0\, 6.5\, 7.0\, 7.5\, 8.0\, 8.5 indexes): $100\nOfficial Rules\nMust Pass NHRA tech for ET and MPH\nSmall Tire: 28×10.5 non ‘W’ or Smaller Tires\nSmall Tire: Must have steel roof and quarter panels\nBig Tire: Door cars only\nOne Bye allowed per race \nQuarter Mile Heads up Index classes\nRace format: Single Elimination (Saturday and Sunday)\nLight: .500 Pro Tree\nTiming Boards: On\nPairing layout: Random chip draw each round (Cannot get ‘Bye’ run twice)\nBuy in Cost: $100\nOfficial Rules\nCars\, Trucks\, and Motorcycles\nMUST Pass NHRA Tech for ET & MPH\nAny tire permitted\nChoose Index (.5 increments) before 1st round\nBreakout = Loss\nNo Throttle Stops\nNo Delay boxes\nTrans Brake authorized\nNo switching indexes after round 1 chip draw \n 
URL:https://racefirebird.com/event/concrete-clash/
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