Pahrump (Vegas Adjacent), NV
Spec Fuel: Sunoco Supreme 112 and Sunoco pump gas. See individual class listings below for specified fuel.
All Sunoco fuels will be available trackside starting Friday October 16th. Fuel can be purchased by the gallon from the Sunoco fuel truck from Friday morning thru Sunday 10 am.
Mixing of fuel brands or types is ILLEGAL and will result in a DQ. Any additives, whether they are performance enhancing or not, are ILLEGAL and will result in a DQ (with the exception of manufacturer additives present in pump gas from the pump).
Spec Tires: The Vega tire will be the spec tire for the IKF Grand Nationals at Spring Mountain. Please see the individual class listing below for the required spec Vega tire for each class.
IKF Grand Nationals Race Classes
TaG Micro
Competition Age: 7-10 years
Weight: 225 lbs.
Tires: Vega XH4 GREEN 4.60/10.0-5 front & Rear
Wheels: No width restrictions
Engine:
-
IAME Micro Swift 60cc restricted header as supplied by manufacturer
Fuel: Sunoco Supreme 112 (available at track)
Oil:
-
Elf HTX 909 SAE 50
Tech Specs: IAME Swift 60cc
Supplemental rules: Tri-C supplemental rules
100cc Tag Junior
Competition Age: 12-16 years
Weight: 320 lbs.
Tires: Vega XH4 GREEN 4.60/10.0-5 front & 7.10/11.0-5 Rear
Engine:
-
IAME KA100 with 22mm IAME factory header
Fuel: Sunoco Supreme 112 (available at track)
Oil:
-
Elf HTX 909 SAE 50
Tech Specs: IAME KA100
Supplemental rules:
TaG Mini
Competition Age: 8-13 years
Weight: 245 lbs.
Tires: Vega XH4 GREEN 4.60/10.0-5 front & Rear
Wheels: No width restrictions
Engine:
-
IAME Mini Swift 60cc
Fuel: Sunoco Supreme 112 (available at track)
Oil:
-
Elf HTX 909 SAE 50
Tech Specs: IAME Swift 60cc
Supplemental rules: Tri-C supplemental rules
100cc Tag Senior
Competition Age: 15+ years
Weight: 360 lbs.
Tires: Vega XH4 GREEN 4.60/10.0-5 front & 7.10/11.0-5 Rear
Engine:
-
IAME KA100
Fuel: Sunoco Supreme 112 (available at track)
Oil:
-
Elf HTX 909 SAE 50
Tech Specs:
Supplemental rules:
100cc Tag Master
Competition Age: 30+ years
Weight: 380 lbs.
Tires: Vega XH4 GREEN 4.60/10.0-5 front & 7.10/11.0-5 Rear
Engine:
-
IAME KA100
Fuel: Sunoco Supreme 112 (available at track)
Oil:
-
Elf HTX 909 SAE 50
Tech Specs:
Supplemental rules:
Briggs Lo206 Jr 1 Cadet
Competition Age: 7-12 years
Weight: 245 lbs.
Tires: Vega VAH RED 4.60/10.0-5 front & Rear
Engine:
-
Briggs & Stratton LO206
-
Carburetor slide - Blue with Carb lock
Clutch:
-
See Briggs & Stratton LO206 2026 Regulations
-
Gear ratio is open
Fuel: Sunoco pump gas (Available at track)
Tech Specs:
Briggs Lo206 Senior
Competition Age: 15+ years
Weight: 350 lbs.
Tires: Vega VAH RED 4.60/10.0-5 front & 6.00/11.0-5 Rear
Engine:
-
Briggs & Stratton LO206
-
Carburetor slide - Black (stock)
Clutch:
-
See Briggs & Stratton LO206 2026 Regulations
Fuel: Sunoco pump gas (Available at track)
Tech Specs:
Briggs Lo206 JUnior
Competition Age: 11-15 years
Weight: 320 lbs.
Tires: Vega VAH RED 4.60/10.0-5 front & 6.00/11.0-5 Rear
Engine:
-
Briggs & Stratton LO206
-
Carburetor slide - Black (stock)
Clutch:
-
See Briggs & Stratton LO206 2026 Regulations
Fuel: Sunoco pump gas (Available at track)
Tech Specs:
Briggs Lo206 master
Competition Age: 35+ years
Weight: 370 lbs.
Tires: Vega VAH RED 4.60/10.0-5 front & 6.00/11.0-5 Rear
Engine:
-
Briggs & Stratton LO206
-
Carburetor slide - Black (stock)
Clutch:
-
See Briggs & Stratton LO206 2026 Regulations
Fuel: Sunoco pump gas (Available at track)
Tech Specs:
Race Weekend
Official Practice (Friday) – 4 Practice sessions and Qualifying (session)
Saturday Racing – Warm-up and 3 Heat races
Sunday Racing – Warm-up and the Final
Racing FORMAT
Qualifying (Friday): Session (length TBD)
Heat 1 (Saturday): Grid order determined by Qualifying
Heat 2 (Saturday): Grid order determined by final results of Heat 1
Heat 3 (Saturday): Grid order determined by final results of Heat 2
GRAND FINAL (Sunday): Grid order determined by combined finishing points of all 3 Heat races (highest point total)
How to become a Champion...
A Grand National Champion
Win the Grand Final on Sunday and claim the right to lift the Duffy in victory!