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2008 NHRA RULES REVISIONS
2008 Rule Revisions (Updated 3/28/08)
General Regulations
General Regulations
Section 4
4:11 Roll Cage
Page 81 (03/08)
Add new paragraph "D" bar installation for full bodied cars: For front wheel drive cars, with complete OEM floor (from the fire wall to the rear of the trunk) and rocker/sill boxes, the 1-1/4" x .058" CM (.118" MS) "D" bars (when required; i.e. when the main hoop is not welded to the frame) may be welded to a 1-5/8" x .083" CM (.118" MS) cross member welded to the rocker/sill box via conventional 6" x 6" x 1/8" thick plates. For rear wheel drive cars, with neither a frame nor sub-frame connectors, but with complete OEM floor (from the fire wall to the rear of the trunk; exception: the rear inner wheel wells may be tubbed with steel or aluminum.) and rocker/sill boxes, the 1-1/4” x .058 CM (.118” MS) "D” bars may be welded to conventional 6" x 6" x 1/8" plates attached to the drive shaft tunnel.”
General Regulations
Section 4
7:8 Windshield, Windows
Page 88 (01/08)
Delete last sentence and replace with “The use of any temporary or permanent shielding, including paint, that obstructs the driver's vision that is attached to the helmet, window, windshield/windscreen in prohibited. Any other shielding must have a permanent attachment. Tape, tie straps, etc. prohibited for use as an attachment.”
Page 88 (03/08)
Delete previous revision and replace with “The use of any temporary or permanent shielding, including paint, that obstructs the driver's vision that is attached to the helmet, window, windshield is prohibited. Any other shielding must have a permanent attachment, such that it requires tools for removal. Tape, tie straps, binder clips, Velcro, glue, etc. prohibited for use as an attachment. Shield is allowed to pivot as long as it remains permanently attached. Maximum size of shield: 4-inches by 8-inches. See General Regulations, 10:7 Helmet and goggles, page 97.”
General Regulations
Section 4
10:7 Helmets & Goggles
Page 97 (3/08)
In third paragraph, after “Modifications to helmet/shield are prohibited” add “Helmet must remain as manufactured, except for paint scheme/graphics. Reducing peripheral vision of helmet in any way prohibited. Shield, if used must remain as manufactured, may be clear or tinted. Cutting of shield, or reducing its transparency, prohibited. Tape, tinting film, paint, decals, ECT. prohibited except for a horizontal band at top of shield, 1-inch tall maximum. See General Regulations, Section 4, Windshield, Windows.”
General Regulations
Section 4
10:10 Protective Clothing
Page 98 (1/08)
Page 98 Section 4 - General Regulations 10:10 PROTECTIVE CLOTHING
Replace current Protective Clothing section with the following:
Drivers are required to have as a minimum requirement, protective
clothing labeled as meeting the standards as specified in the
Class Requirements.
Protective clothing includes suit, head sock, gloves, and boots or
shoes. Suit can be one piece, or separate jacket and
pants. Jacket and pants must each be labeled as meeting
applicable SFI Spec.
All jacket and pants, or driver suits, that meet SFI Spec 3.2A/15 or SFI
Spec 3.2A/20 must be recertified on a five-year interval.
All drivers are required to wear full-length pants, shoes, and socks.
Nylon or nylon-type clothing and open-toe shoes prohibited.
All gloves must have a full layer of flame-retardant material inside
the glove. Leather palm gloves without a full layer of flame-retardant
material separating leather from driver's hand prohibited.
Drivers in all open-bodied cars must wear a full-face helmet, and SFI 3.3 fire-resistant gloves, minimum. See Class Requirements.
Drivers of all open-bodied cars who do not use an SFI 3.3 neck
collar must use an SFI 3.3 head sock or skirted helmet.
See Class Requirements for protective clothing specifics.
Super Pro, Pro, Sportsman
Super Pro, Pro, Sportsman
Section 5A
Designations
Page 101 (2/08)
Pro: Replace Pro: 7.50 to 13.99 (*4.50 to 8.59), with Pro 9.00 to 13.99 (*5.70 to 8.59).
Super Pro, Pro, Sportsman
Section 5A
Support Group: 9
Page 107 (12/07)
Tow Vehicles: Replace second sentence with “See General Regulations 9:12.”
Super Pro, Pro, Sportsman
Section 5A
Support Group: 9
Page 107 (12/07)
Push Bar: Replace second sentence with “See General Regulations 9:9.”
Super Pro, Pro, Sportsman
Section 5A
Support Group: 9
Page 107 (12/07)
Warm-Ups: Replace first sentence with “See General Regulations 9:5, 9:14.”
Advanced E.T.
Advanced E.T.
Section 5B
Support Group: 9
Page 111 (12/07)
Tow Vehicles: Replace second sentence with “See General Regulations 9:12.”
Advanced E.T.
Section 5B
Interior: 6
Page 110 (12/07)
Upholstery: Add “For all front engine open bodied vehicles supercharged or turbocharged (gasoline or methanol burning), a flame-retardant-material-covered seat is mandatory.”
Advanced ET
Section 5B
Driver: 10
Page 111 (12/07)
Protective clothing:
In third paragraph after “nitrous oxide” add “or methanol burning”.
In fourth paragraphafter “nitrous oxide” add “or methanol burning”. Delete “with a full .024-inch steel firewall”. Replace “3.2A/5” with “3.2A/15”. After gloves add “and shoes”. Replace “3.2A/1” with “3.3/1”.
In fifth paragraph after “supercharged” add “or Naturally aspirated methanol-burning”.
Add new paragraph “All open-bodied rear-engine supercharged or turbocharged methanol-burning: SFI 3.2A/15 suit with SFI 3.3/15 gloves and boots.”
Add new paragraph “All open-bodied front-engine supercharged or turbocharged methanol-burning: SFI 3.2A/20 suit with SFI 3.3/20 gloves and boots.”
Advanced ET
Section 5B
Driver: 10
Page 111 (1/08)
Helmet: Delete all, replace with “A full face Snell M2000, M2005, K98, K2005, SA2000, SA2005, SFI 31.2A, 41.2A helmet and shield mandatory; (goggles prohibited).
For all open-bodied front-engine or rear-engine supercharged, turbocharged, or nitrous cars, a full-face Snell SA 2000, SA2005, or SFI 31.2A helmet and shield mandatory; (goggles prohibited). See General Regulations 10:7.”
Advanced ET
Section 5B
Support Group: 9
Page 110 (1/08)
Fire-Extinguisher: Delete all, replace with “Mandatory on (closed or open) bodied front-engine alcohol-burning or supercharged/turbocharged cars and on any rear-engine car with enclosed cockpit. Minimum: 5-pound NHRA accepted system. All front-engine open-bodied supercharged/turbocharged (gasoline or methanol) cars and supercharged alcohol cars (full-bodied or Funny Car). Minimum: 20-pound NHRA accepted system. See General Regulations 9:10 for accepted agents.”
ET Motorcycle
ET Motorcycle
Section 5C
Rider: 10
Page 114 (01/08)
Helmet: In second sentence replace “permitted” with “mandatory”.
ET Motorcycle
Section 5C
Support Group: 9
Page 114 (01/08)
Pressurized Bottles: Replace forth sentence with “See General Regulations 9:8.”
ET Snowmobile
ET Snowmobile
Section 5E
Rider: 10
Page 118 (01/08)
Helmet: In second sentence replace “permitted” with “mandatory”.
All Terrain Vehicle
All Terrain Vehicle
Section 5F
Rider: 10
Page 121 (01/08)
Helmet: In second sentence replace “permitted” with “mandatory”.
Super Street
Super Street
Section 6
Support Group: 9
Page 129 (12/07)
Tow Vehicles: Replace second sentence with “See General Regulations 9:12.”
Super Street
Section 6
Support Group: 9
Page 129 (12/07)
Warm-Ups: Replace first sentence with “See General Regulations 9:5, 9:14.”
Super Street
Section 6
Support Group: 9
Page 129 (2/08)
Data Recorder: delete third sentence and replace with “any drivetrain sensors permitted.”
Super Gas
Super Gas
Section 7
Engine: 1
Page 131 (12/07)
Oil-Retention Device: In second sentence replace “of the flywheel” with “to rear engine plate”
Super Gas
Section 7
Support Group: 9
Page 132 (12/07)
ADD
Data Recorder: One data recorder permitted. Wheel counters prohibited. Any drivetrain sensors permitted. See General Regulations 9:1, 9:2.
Super Comp
Super Comp
Section 8
Support Group: 9
Page 134 (12/07)
ADD
Data Recorder: One data recorder permitted. Wheel counters prohibited. Any drivetrain sensors permitted. See General Regulations 9:1, 9:2.
Super Comp
Section 8
Support Group: 9
Page 134 (01/08)
Tow Vehicles: Replace third sentence with “See General Regulations 9:12.”
Stock
Stock Cars
Section 9A
Engine: 1
Page 135/6 (03/08)
Class Weight Breaks: Replace last sentence with “The power to weight factor (as found in the Official NHRA Stock Car Classification Guide) determines the natural class for all cars. The power to weight factor is the shipping weight of the vehicle divided by the advertised, or when applicable, the factored horsepower for the OEM assembly line cylinder heads (not aftermarket cylinder heads). NHRA accepted aftermarket cylinder heads carry a horsepower penalty which is calculated to the weight of the vehicle and does not change the class of the vehicle.”
Stock Cars
Section 9A
Engine: 1
Page 137 (12/07)
Cylinder Heads: In forth sentence delete “at original angles”. In fifth sentence delete “and stock seat angle”. Delete fifth from last sentence “For acceptable valve job, see General Regulations 1:2 illustration.” In third from last sentence delete “bottom cut may not extend more than .250 inch below seat angle”.
Stock Cars
Section 9A
Drivetrain: 2
Page 140 (01/08)
Transmission, Automatic: Replace ninth sentence “Electronic shifting of automatic transmission permitted.” with “Electronic RPM controls for the electric (internal or external to the transmission) shifting of automatic transmissions permitted in computer controlled electronic fuel injected vehicles only. Otherwise any gear change must occur as a result of an internal function of the transmission or from direct action by the driver. Pneumatic, hydraulic, electric, etc. controls and shifters in all non computer controlled electronic fuel injected vehicles prohibited.”
Stock Cars
Section 9A
Frame: 4
Page 142 (03/08)
Weight: Delete fourth and fifth sentences.
Stock Cars
Section 9A
Body: 7
Page 144 (03/08)
Windshield, Windows
After second sentence add “Factory back glass on a truck may be replaced
with Plexiglas, Lexan, or other shatterproof material, minimum 1/8-inch
thick, to permit the use of the back brace bars on a roll bar or roll
cage.”
Stock Cars
Section 9A
Electronics: 8
Page 144 (11/07)
Delay Boxes/Devices: Prohibited. See General Regulations 8:2, 8:8. Add
“Two-step permitted. Two-step must be foot activated through brake pedal, clutch pedal, or pressure switch. Hand release prohibited.”
Stock Cars
Section 9A
Support Group: 9
Page 144 (01/08)
Warm-Ups: Replace with “See General Regulations 9:5, 9:14.”
Super Stock
Super Stock
Section 10A
Drivetrain: 2
Page 150 (11/07)
Transmission, Automatic: After “electric transbrake release system only” add, “Transbrake buttons must be NHRA accepted. Devices must be mechanical spring actuated and not exceed 3 inches in length from base of (button) switch to top of plunger. Adjustability is permitted, and may be made by a threaded stop or stop rings. Modifying the switch by the addition of hydraulics, pneumatics, electric, or other means is prohibited. See NHRA website for current
accepted list.
Super Stock
Section 10A
Frame: 4
Page 152 (03/08)
Weight: Delete fourth and fifth sentences.
Super Stock
Section 10A
Support Group: 9
Page 154 (01/08)
Warm-Ups: Replace with “See General Regulations 9:5, 9:14.”
Super Stock
Section 10D Modified Stock
Engine: 1
Page 160 (12/07)
Carburetor: Replace first, second, and third sentences with “Class A, one NHRA accepted 4-barrel, maximum 850 cfm, standard OEM configuration. Classes B, C, and D one NHRA accepted 4-barrel, maximum 750 cfm, standard OEM configuration. Classes A through D, throttle bore restricted to manufacture's dimension, measured at the largest point, venture restricted to manufacture's dimension plus .025 inch, measured at the largest point.”
Super Stock
Section 10D Modified Stock
Engine: 1
Page 160 (12/07)
Cylinder Heads: After “two valves per cylinder” add, “except in classes ES, FS, and DS four valves per cylinder permitted”
Super Stock
Section 10D Modified Stock
Frame: 4
Page 163 (12/07)
Wheelbase: Replace second sentence with “Minimum wheelbase 93 inches.”
Super Stock
Section 10E Modified Truck
Engine: 1
Page 165 (12/07)
Carburetor: Replace first, second, and third sentences with “Class TA, one NHRA accepted 4-barrel, maximum 850 cfm, standard OEM configuration. Classes TB, TC, and TD one NHRA accepted 4-barrel, maximum 750 cfm, standard OEM configuration. Classes A through D, throttle bore restricted to manufacture's dimension, measured at the largest point, venture restricted to manufacture's dimension plus .025 inch, measured at the largest point.”
Comp Eliminator
Comp
Section 11
Drivetrain: 2
Page 176 (11/07)
Transmission, Automatic: After “electric transbrake release system only” add, “Transbrake buttons must be NHRA accepted. Devices must be mechanical spring actuated and not exceed 3 inches in length from base of (button) switch to top of plunger. Adjustability is permitted, and may be made by a threaded stop or stop rings. Modifying the switch by the addition of hydraulics, pneumatics, electric, or other means is prohibited. See NHRA website for current accepted list.
Comp
Section 11
Support Group: 9
Page 177 (12/07)
Tow Vehicles: Replace second sentence with “See General Regulations 9:12.”
Comp
Section 11
Support Group: 9
Page 177 (12/07)
Warm-Ups: Replace with “See General Regulations 9:5, 9:14.”
Comp
Section 11
Driver: 10
Page 178 (12/07)
Protective Clothing: In first paragraph replace “SFI 3.2A/15” with “SFI 3.3/15”
In second paragraph replace “SFI 3.2A/5” with SFI 3.3/5”
Comp
Section 11C Nostalgia Dragster
Drivetrain: 2
Page 187 (12/07)
Transmission Automatic: Add after second sentence “Automated, electric, or pneumatic shifter prohibited.”
Comp
Section 11C Nostalgia Dragster
Interior: 6
Page 188 (12/07)
Upholstery: Replace paragraph “For supercharged or turbocharged open-bodied cars (gasoline or methanol burning), a flame-retardant-material-covered seat is mandatory.” with “Optional”
Comp
Section 11C Nostalgia Dragster
Driver: 10
Page 189 (12/07)
Protective Clothing: Replace first sentence with “Jacket and pants meeting SFI Spec 3.2A/15, gloves 3.3/5, and boots/shoes 3.3/5 mandatory.”
Comp
Section 11C Nostalgia Dragster
Driver: 10
Page 189 (2/08)
Protective Clothing: Delete second sentence. Delete from third sentence “front-engine”. Delete fourth sentence
Comp
Section 11D Altered & Street Roadster
Brakes & Suspension: 3
Page 193 (12/07)
Suspension: In third sentence delete “limited to” and replace with “may use” and delete “only”.
Comp
Section 11D Altered & Street Roadster
Driver: 10
Page 198 (12/07)
Protective Clothing: Replace fifth paragraph with “For supercharged or turbocharged open-bodied cars (gasoline or methanol burning) and closed-bodied methanol burning, a suit meeting SFI Spec 3.2A/15, SFI 3.3/5 gloves and SFI 3.3/5 shoes/boots mandatory.”
Comp
Section 11F Econo Altered
Brakes & Suspension: 3
Page 205 (12/07)
Suspension: After second sentence add “Four-link rear-suspension car my use a single spring and shock absorber.”
Comp
Section 11H Pro Modified
Driver: 10
Page 220 (12/07)
Protective Clothing: Replace second sentence with “Driver's suit meeting SFI Spec 3.2A/15, SFI 3.3/5 gloves and SFI 3.3/5 boots mandatory in A/PM.”
Top Alcohol Dragster
Top Alcohol Dragster
Section 12
Engine: 1
Page 223 (01/08)
Oil-Retention Device: At beginning of paragraph add “Engine oil-retention pan mandatory.”
Top Alcohol Dragster
Section 12
Frame: 4
Page 226 (12/07)
Helmet Shroud/Deflector Plate: In first paragraph replace "1 3/4 inches high by 2 inches wide” with “3/4 inches high and 2 inches wide”
Top Alcohol Dragster
Section 12
Frame: 4
Page 226 (12/07)
Helmet Shroud/Deflector Plate: In first paragraph replace "3/4 inches high and 2 inches wide.” With “3/4 inches high and 2 inches wide slots optional.”
Top Alcohol Dragster
Section 12
Interior: 6
Page 227 (01/08)
Seat: Delete first sentence and replace with “Seats must be foamed or formed, with energy absorbing material, to the driver's body.”
Top Alcohol Dragster
Section 12
Frame: 4
Page 227 (01/08)
Roll Cage: In seventh sentence after “currently accepted manufacturers are” add O'Brien's.
Top Alcohol Dragster
Section 12
Support Group: 9
Page 229 (12/07)
Tow Vehicles: Replace second sentence with “See General Regulations 9:12.”
Top Alcohol Dragster
Section 12
Support Group: 9
Page 229 (01/08)
Warm Ups: Replace with “See General Regulations 9:5, 9:14.”
Top Alcohol Dragster
Section 12
Driver: 10
Page 229 (02/08)
Driver Restraint System: Add: all belts must be covered with a fire-resistant covering.
Top Alcohol Dragster
Section 12
Driver: 10
Page 230 (12/07)
Protective Clothing: In second sentence replace “gloves 3.2A/20” with “gloves 3.3/20”
Top Alcohol Dragster
Section 12
Driver: 10
Page 230
Protective Clothing: Boots 3.3/15, mandatory effective 3-13-08
Top Alcohol Funny Car
Top Alcohol Funny Car
Section 13
Engine: 1
Page 231 (01/08)
Oil-Retention Device: Engine oil-retention pan mandatory. Minimum material, .050-inch aluminum or .040-inch carbon fiber/Kevlar. Pan may extend rearward of the motor plate to capture oil from rear main seal, but no more than 3 inches rearward of the motor plate. Pan length from motor plate forward must extend a minimum 1 inch forward of the front face of the lower pulley. Pan may be no wider than outside edge of the bottom framerails and must extend to the top of the upper framerails. Pan must be either a one-piece design or constructed as to be sealed as a retention device to retain oil. Must have minimum 4-inch-high bulkhead on front and minimum 2-inchhigh bulkhead on rear for oil retention during acceleration and deceleration. Bulkheads must be “coved” toward oil pan to assist oil in staying within the confines of the bulkheads.
Top Alcohol Funny Car
Section 13
Frame: 4
Page 232 (12/07)
Roll Cage: Add the paragraph “Additional padding, mounted on flat stock and fastened to the roll cage on both sides of the driver's helmet, mandatory. Additional padding must be NHRA-accepted, securely mounted using bolts or locking fasteners, and must include a flame-retardant covering. Currently accepted manufacturers are IPS, Impact,
Butler, and Mark One.”
Top Alcohol Funny Car
Section 13
Frame: 4
Page 232 (12/07)
Helmet Shroud/Deflector Plate: In last paragraph in last sentence replace “1 3/4 inches high and 2 inches wide" with “3/4 inches high and 2 inches wide”
Delete second sentence and replace with “A multi-piece shroud is permitted.”
Top Alcohol Funny Car
Section 13
Frame: 4
Page 232
Helmet Shroud/Deflector Plate: Replace last sentence: "Shroud must provide clearance slots of minimum 3/4-inch high and 2-inches wide on both sides of each roll cage tube where they meet the shoulder hoop."
With: "Unless the shroud is mounted with fasteners that have ½-inch hex style heads (as required in TF and TAD) a clearance slot minimum ¾- inch high by 2-inches wide is required on each side of each roll cage tube where it meets the shoulder hoop.”
Top Alcohol Funny Car
Section 13
Interior: 6
Page 233 (01/08)
Seat: Delete first sentence and replace with “Seats must be foamed or formed, with energy absorbing material, to the driver's body.”
Top Alcohol Funny Car
Section 13
Driver: 10
Page 236
Protective Clothing: Boots 3.3/20, mandatory effective 3-13-08
Pro Stock Motorcycle
Pro Stock Motorcycle
Section 14
Page 237 (03/20/08)
Replace “NHRA-accepted American push rod V-twin (up to 160 cid;” “– 620 pounds” with “NHRA-accepted American push rod V-twin (up to 160 cid;” “– 625 pounds” Replace “
Kawasaki (101 cid, 4 valve) – 615 pounds” with “
Kawasaki (101 cid, 4 valve) – 600 pounds”
--Replace “Suzuki (101 cid) – 610 pounds” with “Suzuki (101 cid) – 605 pounds”
Pro Stock
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