Hammerdown Speedway Sponsors
Contact Information
Telephone: (910)843-6JZM(6596)
Email: jzmracing@nc.rr.com

Posted on 02/07/09
The rules and regulations set forth herein are designed to provide for the orderly conduct of racing events only. They are to establish minimum acceptable requirement for such events. No expressed or implied guarantee of safety shall result from publication of, or compliance with these rules and /or regulations. They are intended as a guide for the conduct of the sport and are in no way a guarantee against injury or death to participants. Any and all photographs shot at the racetrack or by track photographer will remain the property of the photographer and racetrack, which may be used for promotional purposes or any other purpose deemed suitable by the photographer and the racetrack.
1. Track management reserves the right to refuse entry to any car, driver or crewmember to the pit area or the grandstand.
2. Anyone entering the pit area must read and sign a release absolving track owners and officials of any safety liability. Enter the pits at your own risk.
3. Children age 11 and under must be accompanied by a parent or guardian to enter the pit area. Parents must sign a release form for children aged 12 to 16.
1. BODY - Any full size American made car or truck. No jeeps, 4x4’s,will be allowed to run. WHEELBASE min. is 104” with a 1” tolerance. 6” REAR SPOILERS ok. (No side spoilers.) Doors, fenders and quarter panels may be fabricated of steel or aluminum, but must be stock appearing. No dirt late model noses. Must have stock roof, trunk, and rear bumper.
Floor pans and firewall must be present. Trunk area my be removed for Fuel Cell placement or for repair, replacement tubing may be used behind rear axle.
2. CHASSIS - Uni-bodies may be tied together. No hulling. Must have a full roll cage constructed of a min. 1 1/2” tubing.
3. Front inner fender wells may be removed. Fender wells may be cut for tire clearance. No added hood scoops of any kind. If the hood came with a factory hood scoop, it is ok, but must be blocked and not functional.
4. Fuel cell is mandatory. Safety belts, harness and fire extinguisher mandatory. Must be track approved.
5. FUEL - Racing fuel ok.
6. WEIGHT - 3300 lbs. min.
7. SUSPENSION - Must be stock and in the stock location. No Chrysler rear leaf springs on GM chassis. Front springs may be changed, adjustable buckets ok. Spring shackles and lowering blocks ok. Upper A-frame may be cut for caster. Non-adjustable tubular upper A-arms ok. Shocks must be in the stock location.
8. TRANSMISSION - Factory OEM manual or automatic ok. NO Bert, Brinn, Jericho or direct drives. Automatics must have a working torque converter. FLYWHEEL must weigh 14 lbs min. CLUTCH-stock type pressure plate and clutch disc of 10 1/2” min. Steel scatter shield mandatory with manual transmission, may be fabricated from 3/16”steel and track approved. Hydraulic clutch cylinders ok.
9. REAR END - Posi-track, limited slip, weld or locked rear ends ok. Mini-spool ok. 9” Ford in all cars ok for safety. Aftermarket axles or floaters ok.
.
10. BRAKES - 4 wheel working brakes mandatory. No brake adjusters.
11. TIRES - Any DOT tire or 8 inch track approved Modified tire.
12. WHEELS - Any steel wheel. Larger wheel studs recommended.
13. DRIVE SHAFT - Must be painted white with car # on it. Must have a safety loop 8”-12” to rear of transmission where drive shaft inserts into transmission.
14. ENGINE - Stock stroke on crank, max overbore is .060
15. CAM & LIFTERS - Any flat-tappet cam. No mushroom lifters. Roller rockers ok, stock ratio only, no stud girdles.
16. HEADS - Stock OEM straight plug cast iron heads only. No vortex or angle plug heads. Screw in studs and guide plates ok. VALVE SPRINGS - Stock diameter single valve springs (1.250”) .. No hand blending. VALVES - Steel only. Max. size 1.94” intake, 1.5” exhaust.
17. INTAKE - Stock cast iron intake for engine used. No bowtie or Brezenski intakes. Headers - ok.
18. PISTONS - Stock type OEM or replacement type (no lightweights).
19. CRANKSHAFT - Stock OEM only. Stock stroke only. Must have factory part number on it. May be balanced. No knife edging. CAST 48 lbs. min. STEEL 50 lbs. min.
20. IGNITION - Stock type only. HEI ok. Brass dist. gear ok. COIL - Any. NO MSD.
21. FUEL PUMP - NO ELECTRIC.
22. Holley 500 # 4412, Rochester or autolite 2 bbl carburetor, with a 1” max. spacer plate/ adapter.
23.ENGINE BUYOUT -Anyone in the top FIVE may buy the winning engine for $1000 without carb, air cleaner, headers, front accessories, clutch and flywheel, or dist.
NO Radios or other two-way communication or listening devices are allowed.
Telephone: (910)843-6JZM(6596)
Email: jzmracing@nc.rr.com