The Circuit 2023 Classes and Rules

Racers will be able to change classes on Friday night ONLY and must do so, in person, before 7pm.

2 time slips from each day required. Turn in time slips to The Circuit registration table EACH DAY!

Champion and Runner-Up Trophies for Each Class (You VS You Awards 1-2-3)

Quarter Mile Classes

**Street Race Power Adder – 11.5” measured tire tread width max, 8.50 Cap, Big Block or Small Block

**All Motor Small Block– engine displacement must be 430 ci and below, and the engine may not be a Mopar 426-based Hemi, a Chrysler early Hemi, a big-block Mopar, a big-block Chevy, a big-block Ford, or an FE Ford. – Same as HRDW except Open to any size slick or drag radial.

** All Motor Big Block – engine displacement must be 431 ci and above. All Mopar 426-based Hemis, Chrysler early Hemis, big-block Mopars, big-block Chevys, big-block Fords, and FE Fords will run in Big-Block classes regardless of displacement. Same as HRDW except Open to any size slick or drag radial.

**Gasser/Hot Rod NA – Vehicles pre1972 – Combination of Gasser/Hot Rod class rules – No Muscle Cars unless solid axle swap or lifted front suspension (Gasser appearance), No Beadlocks, No Wheelie Bars, No wing, No Round Tube Frame, Must Fit Class Appearance
**Gasser/Hot Rod PA – Vehicles pre1972 – No Muscle Cars unless solid axle swap or lifted front suspension (Gasser appearance), Single Power Adder, No Beadlocks, No Wheelie Bars, No wing, No Round Tube Frame, Must Fit Class Appearance

**Stick Shift – Must use manual H-Pattern transmission, Shifts must be made by the driver with a mechanical lever, no air shifters allowed. Clutch must be activated by a pedal by the driver. Lenco-type planetary transmissions prohibited.

**True Radial 250+ treadwear (Class will run last each day)

You VS You – **10.000+ ET – Think Bracket Racing meets Index Racing!! We are looking for the MOST Consistent Racers!! Set your personal dial-in, run as close to dial as possible, closest racer wins. In the event of a tie, Average Reaction Time across all four passes will determine winner. Racer CAN NOT turn in pass faster than Dial-In. Ex: Racer sets dial-in at 10.86 – 4 passes are 10.916/10.873/10.995/10.901 – Their ET average is 10.921 equaling a difference of 0.061

** Motorcycle – Traditional motorcycle or trike with single front wheel. Slingshot type vehicles will race in appropriate vehicle classes.

Eighth Mile Classes

**235 – 235/60-15 (26×8.5 Slick) or smaller tire

**275 – 275/60-15 drag radial (29×10.5 slick (M/T ET Street R 28×11.5 Bias also accepted)) or smaller tire for this class -Any size 17” or larger rim is allowed

**Unlimited – You got it, run it. Must be legal to operate on the roadways and complete the trip with no assistance.