This Rules Page Last Updated : May 27, 2007
RULES
SAFETY | BODY | ENGINE | WEIGHT |RACE PROCEDURES
SAFETY
Chassis
All cars must use a full frame meeting SFI 25-1E or 25.2 spec with current IHRA certification prior to competition (See IHRA general regulations for definitions). Funny car roll cage mandatory.
Driver restraint (Seat Belts)
SFI spec 16-1 mandatory within 2-year expiration of date of manufacture. (See general regulations page 126 IHRA rulebook)
Parachutes
Required on all vehicles. Dual chutes recommend on all vehicles reaching speeds of over 175 mph.
Window Net
Mandatory meeting the SFI-27-1 specifications (See general regulations page 129 IHRA rulebook)
Protective Clothing
A driver suit meeting SFI 3.2A/15, gloves and shoes meeting 3.3/5 and neck collar SFI 3.3
Helmet
SN 2000 or newer or SFI31.1, 31.2, 41.1,41.2 mandatory. Any supercharged or nitrous assisted vehicle must use a 31.2 or 41.2 full-face helmet.
Fire extinguisher system
5 lb fire extinguisher system mandatory. Minimum 1 nozzle on driver’s side in front of feet, 1 nozzle in front of the engine. Safety pins must be red flagged. (See IHRA general regulations page 112 in IHRA rulebook)
Licensing
All drivers must have at least a current IHRA Top Sportsman Class B license. NHRA, NMCA license of equal rating will be accepted.
Piedmont Dragway reserves the right to make additions deemed necessary in the interest of safety.
BODY
Body
Full bodies cars only, no funny car style bodies. All vehicles must have working and accessible doors, truck, & hood.
Wheelbase & Overhang
Minimum 90” with a 1” variation from left to right. Front overhang limited to 43” from the front spindle. Vehicle with less than 43” may add 1 extension to compensate for the difference, but the extension must be approved by Piedmont tech and must meet proper height requirements.
Ground Clearance
Minimum 3” from front end to 12” behind the spindle.
Diapers
All vehicles must be equipped with an IHRA approve diaper. Diapers must be pulled tight not to interfere with the timing equipment. (Any run that is suspected to be affected by a low diaper will be reviewed and possibly disallowed if incremental times detect a major difference in the vehicle’s performance.)
Brakes
Four wheel brakes mandatory on all vehicles.
Tires
10 ½” slicks or 22.5 DOT (Hoosier or Mickey Thompson)
Headlights & Taillights
Vehicles with factory equipped hideaway headlights may retain daylight appearance, but must have some type of working driving lights for night operation. Vehicles with non-hideaway headlights must have lights in the stock location. (No decals) Taillights must be operational during all runs at night to insure visibility in the shutdown area by track personnel.
Dashboard
All cars must have a dashboard, no open dash accepted. (No wires, backs of gauges, or relays should be visible during inspection)
Spoiler
Rear spoilers permitted, but may not exceed more than 18” off the rear deck lid. Rear spoiler may not be molded into the body (Pro Mod style). Spoilers cannot run from the rear window straight back in a box configuration like a typical Pro Mod configuration. New wing or spoiler combinations must be approved by Piedmont tech prior to any vehicle being allowed in competition.
Ballast
Must be secured (Bolted on). Must be able to be added promptly during the weighing process in the event a vehicle is light.
Computers/Data recorders
Allowed, crewmembers cannot activate the computer from the outside after the vehicle has staged.
Batteries/Starters
All vehicles must have an onboard bolted on starter and battery. Drivers must start the vehicle from inside the car. Maximum of two batteries. Battery jump off will be allowed behind the wall only. (If a vehicle loses fire inside the wall, it must be able to start on it’s own. If directed by a Piedmont official to shutoff, the vehicle will be allowed a jump-start inside the wall one time.)
Starting line aids
Delay boxes used as starting line aids are prohibited. Delay boxes used as NOS timers is permitted, but the starting line timers must be set to 000 before entering the water box and must be available for inspection.
Electronic RPM limiters are prohibited on Supercharged entries. The use of pneumatic limiters is permitted. No aids such as optical sensors, down track studder boxes and throttle stops allowed.
Signage
Allowed at the owners discretion. No signage or offensive language allowed or signage detrimental to Piedmont Dragway.
Engine
Carburetion
No restrictions (Deduct 75 lbs for single carb setup)
Mufflers
Mandatory, no cones in collectors or baffle insert.
Exhaust
No zoomie style headers. All headers must be the 4 into 1 style collector exhaust system with mufflers. Exhaust must be directed out of the car body, rearward, and away from the driver and fuel system.
Blowers
No screw type blowers or turbos allowed.
Superchargers:
Overdrive limitations: The maximum supercharger allowed will be 1471.
The maximum overdrive on any High Helix supercharged combinations with billet heads and billet blocks will be at 21%.Conventional cast blocks with billet heads or conventional heads will run at 40%.Maximum supercharge overdrive limits is 50% for standard roots.Supercharged entries 4.90 rear end ratio (Final drive maximum).Supercharged entries are limited to 4 forward gears.The maximum length from the front of the supercharger drive pulley to the leading edge of the rotor is 15 inches. Offset drive pulleys may not be used to add to the number listed above.The use of spacers, modified cases or attaching methods to move the supercharger rearward in excess of the specified amount is prohibited. A belt guard shielding both fuel and oil lines is mandatory. Electronic fuel injection, nitrous oxide, intercoolers and variable speed devices are prohibited.The maximum height of the injection system may not exceed the height of the roof. The injector scoop may not be more than 16 inches forward of the center of the front cylinder or 10 inches behind the center of rear cylinder.OEM manufacture’s supercharger case mandatory. Billet cases prohibited. The top opening may not exceed 11 inches in length and 5 inches in width.
Transmissions
No restrictions, unless mentioned earlier. Transbrake allowed. Must have a dedenbear SFI approved case. (Any racer running true automatic “OEM, Hydraulic Pressure” may deduct 50 lbs.)
Fuel
Only one power additive allowed. Gasoline or alcohol with NOS allowed. Nitro Methane prohibited. No upper lubricates allowed. Fuel checks for Nitro will be in effect in 2007.
Nitrous
Maximum of two bottles, 15 lbs. Maximum per bottle. No bottle may be turned on until after the burnout is complete. All Nitrous bottles must be within a 5 year expiration date and have the pressure rating clearly stamped on the bottle.
Piedmont Dragway reserves the right to change any of the above rules in the interest of fairness and to promote equal competition.
Big Dog Shootout 2007 Weight Limits
Big Block Weight Limits
Setup Weight Allowed
Automatic no nitrous 2400 651 + cubic inch
(Add 75lbs for new hemispherical cylinder head)
Automatic w/ nitrous 2550 650-798 cubic inch
Automatic w/ nitrous 2425 Up to 650 cubic inch
(Add 75lbs. 5” bore spacing)
Automatic Lenco no nitrous 2200 Up to 650 cubic inch
Automatic Lenco no nitrous 2150 Up to 501 cubic inch
Lenco no nitrous 2400 598 & up cubic inch
Lenco no nitrous 2300 Up to 598 cubic inch
Automatic w/blower 2750 Up to 530 cubic inch
Lenco w/nitrous 2700 650-798 cubic inch
Lenco w/nitrous 2600 Up to 650 cubic inch
(Add 75lbs 5” bore spacing)
Lenco w/blower 2850 Up to 530 cubic inch
(Requires chassis spec SFI 25.2)
Notes
Any racer running a true automatic “OEM or Hydraulic pressure” may deduct 50lbs to the above automatic combinations.
Piedmont Dragway technical staff will review these weights after the May 2007 event and will reserve the right to make changes in fairness to the competition.
Small Block Weight Limits
Setup Weight Allowed
Automatic no nitrous 1900 any cubic inch
Automatic w/ nitrous 2050 any cubic inch
Lenco no nitrous 2000 any cubic inch
Lenco w/nitrous 2200 Up to 470 cubic inch
Lenco w/nitrous 2275 Over 470 cubic inch
Lenco w/blower 2750 Up to 450 cubic inch
(Over 450 cubic inch will run at Big Block weight)
Automatic w/blower 2650 Up to 450 cubic inch
(Over 450 cubic inch will run at Big Block weight)
Automatic w/supercharger w/EFI 2650 Up to 450 cubic inch
(Over 450 cubic inch will run at Big Block weight)
(Gasolineonly)
Notes
Small Block Blower cars only:
Conventional block & heads of steel or cast aluminum deduct 175lbs.
Any racer running a true automatic “OEM or Hydraulic pressure” may deduct 50lbs to the above automatic combinations
Piedmont Dragway technical staff will review these weights after the May 2007 event and will reserve the right to make changes in fairness to the competition. |
RACE PROCEDURE
updated April 23, 2007
New Big Dog Race Procedure
In order to quicken the pace on Big Dog qualifying a new procedure will be started as of the May race.
1. Qualifying will start on track at 5:15 pm with the first two cars.
Round one qualifying
1st round qualifying will be with a random draw. The draw will be held at 4:30 pm.
Each driver will pick a card; this card will determine their lane assignment and qualifying order. Example: driver draws a red 3, he will be the third car in the right lane, driver draws a black 5 he would be the fifth car in the left lane. If there is no car in front on the drawn card the driver will move up one spot. Example: driver draws a red 10 and there is no red nine this driver would move into that spot. All drivers will be notified of the order 15 min before the round. If a team is late and misses the draw they must go first in line or wait for round two. The race director will determine if a new driver will need to run a single on their first run, if so that car will run first.
Round two qualifying
Round two order will be determined by qualifying performance of the previous round. If you were the #1 qualifier in round one you would go last. All cars will alternate lanes from the first round. If a car decides to sit out the round they will alternate lanes on the third round. Drivers will be notified 10 minutes before the next round.
Round three qualifying
Round three qualifying will be determined by performance from the 2nd round, if you did not make an attempt in 2nd round be prepared to go first in the 3rd round. If the two drivers running each other have run both lanes they will draw for lane choice.
Other notes
If a car is not ready when called for, their run they will not be allowed to make up the run. You can run in the back but it will not be an official attempt.
Please make sure your crew brings weight if your car is light. You will be allowed time to add weight but you cannot go back to the pits. You must install the weight in the lanes; we will only skip one pair to allow you to add the weight. If you are the last car we will allow 3 minutes. If two cars have done a burnout and are then shutoff by the track official then they will be allowed to move to the back of the line.
We hope that this will help put on a better show and over things along quicker during the night. We need to have the race completed by no later than 10:00 pm for the sake of our fans and neighbors.
2. All cars must stop at scales during qualifying and eliminations.
3. All cars must display permanent number.
4. No break rule.
5. All cars must have battery and starter (push starting only in emergency situations).
6. There will be 2 official qualifying sessions unless circumstances dictate otherwise.
7. During eliminations any vehicle starting a run before the tree is activated will be disqualified. If both vehicles leave before tree is activated, there will be a rerun.
8. Qualifying: If a car takes the green light or leaves before the tree comes on, it is an official qualifying run. If car breaks before staging, you have until the end of the round to qualify. If the last car to qualify breaks in the bleach box, you have 5 minutes. All qualifying will be run on Compulink Auto Start Tree.
9. Eliminations: Once a car is in the bleach box, car must make run within 2 minutes after being directed to do so, or will be disqualified. Both cars must pre-stage before staging. All eliminations will be run on Compulink Auto Start Tree.
10. The elimination ladder will be set as follows: Pro ladder *NEW*
11. Should a qualified car break, alternate will be placed on ladder in broken cars place in round 1 only. Qualified car will receive 1st round loser purse. Other round money goes to alternate.
Race director may waive, amend, or modify any rule at any time for any single occurrence and for any good cause.
The 2007 "BIG DOG SHOOTOUT"
