

Updated 3/3/2025
LDR Gold Rules:
Boards Off. Slips Split. Prepped Track. Water Burnout Only. IHRA Rules Apply. HANS device (or equivalent) must be worn at all times.

Limited 275 Rules:
1/8th Mile. Heads Up. 400 Pro Tree. Chip Draw.
Boards Off. Slips Split. Prepped Track. Water Burnout Only.
IHRA Rules Apply. HANS device (or equivalent) must be worn at all times. All vehicles must utilize an IHRA/NHRA accepted lower engine oil-retention device.
Minimum turnaround time between rounds; 40 Minutes.
No Tube Chassis. Must Have Steel Roof & Quarters.
Must have stock location firewall as it was installed at the factory.
Must have stock factory floorpans.
Max Tire Size 275 60 or 10.5″ x 28″ (Non W)
Must have a functional cooling system that passes through the block or heads.
Must have a functional alternator battery charging system. (No Generator/Battery Chargers Permitted)
Must drive on its own power to staging lanes.
Must drive on your own power from the return road unless there is a problem stopping you from doing so.
No billet aluminum blocks or heads permitted in Limited 275.
Minimum Weight for Limited 275 Classes:
Big Block Single Centrifugal (ProCharger F3R or Equivalent) – 3,150lbs
Small Block Single Centrifugal (ProCharger F1, F3D or Equivalent) – 2,650lbs
Big Block Roots – 2,875lbs
Big Block Twin Turbo – 3,275lbs
Small Block Twin Turbo – 2,950lbs
Big Block Nitrous – 2,475lbs
Small Block Nitrous – 2,200lbs
Big Block Single Turbo – 3,000lbs
Small Block Single Turbo – 2,675lbs
Inline 4 Cylinder Turbocharged – 2,650lbs
Inline 6 Cylinder Turbocharged – 2,700lbs
-200lb for stick shift H pattern equipped vehicles
Any rules not covered will need approval by Tech/Promoter. The promoter reserves the right to rule changes in Limited 275 after each race is completed and prior to the next race on the schedule to maintain parity.

THIS IS AN ENTRY LEVEL HEADS UP CLASS SO WE AS A CLASS HAVE AGREED ON A RULE THAT THIS CLASS IS CAPPED AT 4.80ET. IF YOU GO FASTER THEN 4.80 FLAT 3 TIMES PERIOD. NOT 3 TIMES IN ONE RACE 3 TIMES EVER YOU WILL NEED TO MOVE UP TO LIMITED 275.
1/8th Mile. Heads Up. 400 Pro Tree. Chip Draw
Prepped Track. Water Burnout Only. IHRA Rules Apply.
275/28″ Tire Only (No W’s)
Any 9″ Tire Allowed
No Wheelie Bars
RWD ONLY VEHICLES
Must drive on its own power to staging lanes.
Must drive on your own power from the return road unless there is a problem stopping you from doing so.
-200lb for stick shift H pattern equipped vehicles
Naturally Aspirated Engines
Small Block Minimum Weight – 2,600lb
Big Block Minimum Weight – 3,150lb
632 Cl Max Permitted
Small Block/Mod Motor/Coyote
Single Turbo Max 88mm – 3,500lb
Twin Turbo Max 76/75mm – 3,600lb
Procharger Max 121 – 3,350lb
4 Cylinder Turbo – 2,950lb
Max Turbo 62mm EXD 112.9
100HP Max NOS
6 Cylinder Turbo – 3,175lb
LS7 COPO 350 SC with 2650 Magnuson Blower – 3,225lb
Small Block Nitrous Minimum Weight – 2,800lb
SB Nitrous – 8.2 deck or Modular – 2,750lb
NO JET LIMIT
Big Block Nitrous Minimum Weight – 3,025lb
Jet Plate .136 Jet Max
Fogger .040 Jet Max
600 Cl Max Permitted
ADD 50LBS FOR BIG CHIEF
Racing Fuels Gasoline, Q16, C-85, E-85, C12, 16, 23, 25, 45, or NO2 are the only fuels permitted. Event Tech Director reserves the right to inspect fuel at any time during competition Failure to pass Fuel Check is grounds for disallowance of the run during competition and disqualification from the event during eliminations. Fuel is checked using various means. Samples given to Fuel Check Technical Inspectors are compared to data taken from known fuel samples provided by VP, adjusted for temperature, and within a tolerance determined by Event Tech Director. Failure occurs when the sample readings fall outside those tolerances. M1 and M5 prohibited.
DRIVETRAIN: 2 CLUTCH, FLYWHEEL & FLYWHEEL SHIELD Flywheel and clutch meeting SFI Spec 1.2, 1.3, 1.4, or 1.5 is mandatory. Clutches are limited to a dual disc maximum. Flywheel shield meeting SFI Spec 6.2 or 6.3 is mandatory. Clutch must be manually operated by the driver’s foot. Electronics, pneumatics, hydraulics, or any other device may in no way affect the clutch system. The throw-out bearing must release all fingers, levers, stages, etc. simultaneously. Staged or variable release clutches are prohibited.
MANUAL TRANSMISSION OEM or aftermarket transmissions with a maximum of 5 forward speeds permitted. Clutchless models permitted. Any gear change must occur from direct action by the driver. Pneumatic, electric, hydraulic, etc. shifters prohibited. Torque converter not permitted with this type of transmission. Manual transmissions must utilize SFI approved bell housing.
AUTOMATIC TRANSMISSION Any OEM or aftermarket automatic transmission is permitted. Lock-up style transmission and/or torque convertors are prohibited unless OEM equipped (i.e. A.O.D.). The use of transmission-to-engine adaptors is permitted. The use of trans-brakes is permitted. Pneumatic, electric, hydraulic, etc. shifters permitted.
FRONT SUSPENSION Factory type front suspension only. Coil over shocks are allowed. Aftermarket replacement control arms are allowed. Aftermarket K Members/Commercially available sub-Frames allowed. (Must have prior approval from tech) Strut towers must be in factory location with factory sheet metal attaching factory frame rail to top of strut tower, can be notched, windowed, or trimmed for header clearance but must maintain factory sheet-metal attachment.
REAR SUSPENSION Stock-type and ladder bar rear suspension systems are permitted including COPO, CRC, Cobra Jet, and Drag Pack vehicles. DXP Cross-over permitted any rear suspension but must maintain all parameters of DXP Street Rules set including tire if back half.
WHEELIE BARS The use of wheelie bars is prohibited.
FRAME: 4 CHASSIS All vehicles must have a chassis that meets the guidelines set by SFI for their respective speed and elapsed time. A valid IHRA/NHRA serialized sticker is mandatory at an IHRA Member Track.
FRAME Stock frame required from just fwd of the shock tower/a-arm mounting to the back of the rear wheel tub. Back-halved cars are prohibited. Front and rear sub frames may be joined together. Horizontal and vertical notching of rear frame rail is permitted for tire/rear end clearance.
WHEELBASE Entries must retain stock wheelbase dimensions of + or – 1 inch. Maximum wheelbase variation from left to right is 1 inch.
GROUND CLEARANCE A minimum of 3 inches from the front of the vehicle to 12 inches behind front spindle centerline is mandatory. A minimum of 2 inches for the rest of the vehicle is mandatory (except for oil pan and exhaust headers).
UPHOLSTERY Interior must maintain a factory upholstered appearance. OEM dash board is required and can be made of fiberglass or carbon fiber. Any aftermarket racing style seat is permitted. Driver’s seat must be located in the stock location. Passenger seat is not required. Door panels are required. Floor and transmission tunnel where visible must be carpeted or upholstered.
STEERING COLUMN/WHEEL Aftermarket steering columns and steering wheels are permitted.
PEDALS & PEDAL LOCATION Stock type pedals/linkage is required.
FIREWALL Stock, factory firewall is required. Notching and smoothing of firewall is permitted but must be identifiable as being in the factory location. Factory OEM fiberglass firewalls (Corvette) are permitted to replace the factory firewall with a minimum of .024 thick steel located in the factory location.
WINDSHIELD & WINDOWS OEM glass or IHRA/NHRA approved Lexan is required.
FLOOR Stock floor in stock location is required under driver and passenger seats. Flat area of floor-pan behind seat area and rearward may be replaced with a minimum of .024-inch thick steel or .032-inch aluminum. All entries are allowed a removable trans-tunnel.
BRACKET RACING AIDS The use of any bracket racings aids such as optical sensors, delay boxes, shutter boxes, throttle stops, etc. are prohibited. The use of any device (electrical or mechanical) that allows a driver to ascertain the position of their vehicle to the starting line is prohibited.
CHASSIS
All vehicles must have a chassis that meets the guidelines set by SFI for their respective speed and elapsed time. A valid IHRA/HHRA serialized sticker is mandatory.
SAFETY
All vehicles must utilize an IHRA/NHRA accepted lower engine oil-retention device.
All vehicles must be equipped with the proper safety equipment.
ALL EASY STREET RULES ARE SUBJECT TO CHANGE BEFORE THE NEXT RACE ON SCHEDULE!!

Lil Gangstas Rules:
1/8th Mile. Heads Up. 400 Pro Tree. Chip Draw.
5.30 Index. Boards Off. No Time Slips. Prepped Track. Water Burnout Only. IHRA Rules Apply.
275 60 or 28×10.5 Non W (Yes a quick time pro is okay)
17″ rim allowed any tire size
Must be a door car
No wheelie bars
No delay boxes or throttle stops
