2010 AUTOCROSS RULES and CAR CLASSIFICATIONS
NNJR Autocross Series
 
Each driver must wear an "M" or "SA" rated helmet carrying a 2000 or later Snell Memorial Foundation approval sticker. For those purchasing a new helmet, a 2005 "SA" rated helmet is strongly recommended, but an "M" rated helmet is acceptable. Loaner helmets are available for new drivers.
All NNJR Autocross events are FULLY MUFFLED EVENTS. Any car having a noisy exhaust system will be rejected. This rule will be strictly enforced.
Metal-to-metal seat belts, securely anchored are required. 1965-68 "900 Series" cars must modify the outer seat belt anchors so that the belt crosses the pelvic bone and lower abdomen and down toward the anchor point as near to a 45 degree angle as possible.
Sneakers, tennis shoes or other rubber-soled shoes are recommended. High-heels, sandals and the like will not be allowed.
Roll Bars are recommended for all open cars.
Fire Extinguishers are not mandatory but recommended. For those cars equipped with fire extinguishers, the extinguisher must be a minimum of 2.5 pounds, BC or ABC rated and fully charged. It must be fastened to metal using metal brackets and fasteners, within reach of the driver while buckled in the driver's seat.
Tire and wheel combinations must be completely covered by the bodywork and have sufficient clearance to prevent rubbing that could be considered to be dangerous.
You must retain a Porsche OEM engine block or case (except for X class).
All cars must pass an on-site safety inspection. All loose articles must be removed prior to the safety inspection. Having the car inspected is the responsibility of the driver. A car that has not been inspected will not be allowed to compete. Late inspections are at the convenience of the Tech Inspectors.
Cars / drivers not following the series rules will be subject to protest. Protests which are upheld may result in disqualification from the event, reclassification or other changes as determined by the event chairperson.
A driver may only enter one (1) car in an event.   A maximum of two (2) drivers are allowed per car.  Co-drivers of the same car will run in opposite heats.
In accordance with New Jersey law, absolutely no passengers are allowed at any time, except for pre-approved NNJR instructors.   If an instructor drives your car for a run, the time will not count, and you will receive a re-run.
All rules are the same for Rookie and Veteran classes, except for tires (see below).
New autocrossers with fewer than three (3) events of experience will have an instructor provided (mandatory) for their first run of the day.  Instruction is available for all participants throughout the event.
All drivers must have a work assignment at a flagging station or other duty assigned. Any driver who does not show up for their work assignment may not be allowed to drive, or may forfeit championship points, at the discretion of the event chairperson.
NO ALCOHOLIC BEVERAGES OF ANY TYPE MAY BE CONSUMED BY ANY PERSON DURING THE DRIVING EVENT. THE USE OF ANY ILLEGAL OR REFLEX AFFECTING DRUGS IS STRICTLY PROHIBITED.
 
CAR CLASSIFICATION
General Overview of Class Structure
Cars are placed into classes so that cars of approximately the same capabilities compete with each other. In addition, Rookies (see below for definition) run in separate classes from veterans.
Men run in the "Open Class". Women may elect to run in either the "Ladies Class" or the "Open Class".
Open Classes, with exception to Showroom Stock, will compete against other cars in their respective classes.  (i.e. S8 competes against other S8 cars)
Showroom Stock Classes, Ladies Classes, and Rookie Classes will be “paxed classes” where all of the participants (in this case, all rookies, ladies, or showroom stock cars) run against each other regardless of car classification, with their scores handicapped by their car type.  These handicap factors are called “pax” factors.  The paxes to be used for the 2010 season are shown in the rules section. (i.e. SS1 competes against SS1, SS2, etc., with factors applied to the raw times for handicapping)
Showroom Stock is designed for cars with no modifications.  The NNJR classification philosophy is for Stock classes to only allow minor changes, of the type commonly made by performance-minded Porsche owners. Improved classes are designed primarily for cars with significantly improved suspensions. The Modified class is for cars with significant changes, such as lightweight bodywork modifications and engine swaps.  Modified cars must maintain the same levels of essential equipment as a “street” car, however including  headlights, taillights, turn signals, a windshield and all glass (Lexan or similar is acceptable as replacement as long as it is clear), body panels (original or replacement)
X Class cars will be classed and paxed according to current SCCA Class and Pax Classifications and posted on the NNJR website.
No changes may be made to cars in Stock, Improved, or Modified classes, unless authorized below. R Class is limited only to the fact that the car must have a Porsche engine block and chassis.
Misclassification can be protested. Use or deletion of any equipment not covered in these rules that, in the opinion of the Event Chairperson, results in increased performance will move the car into the next higher class (Improved or Modified).
PROPER CLASSIFICATION IS THE RESPONSIBILITY OF THE ENTRANT.
 
 
Showroom Stock
Unless otherwise specified in these rules, no alterations or modifications are allowed to these automobiles.
Only original equipment manufacturer (OEM) wheels as originally specified and OEM tire sizes as originally specified for each specific model year are permitted.  All Showroom Stock class tires must have a tread wear rating greater than 200.  Wear and tear items, excluding tires, must be comparable in construction and specifications to the originally supplied factory components.  Adjustments are permitted provided no modifications and/or alterations are necessary to achieve the desired adjustment.  Automobiles must run with their spare tire, jack, lug wrench, owner’s manual(s), tools, etc.  Owner’s manual(s) will be used to help verify questionable equipment options and designated wheel/tire sizes.
Stock Class
Engine
• The engine must be as delivered from the factory. NO internal modifications after the air filter and before the exhaust port are allowed.
• Engine rebuilds must be done to factory specifications. Factory overbore only. No lightening of components.
• Turbochargers may not exceed the factory specified maximum boost.
• DME chips may be changed. KLR (turbo) chips must remain as supplied by the factory.
• Transistor or capacitive-discharge ignition systems are allowed.
• The air filter may be removed, but this is not recommended due to the potential fire hazard.
• Any size carburetor jets are allowed; but venturis may not be changed from those supplied by the factory.
• 914/4's may replace the factory fuel injection with carburetor(s) provided no other engine modifications are made.
Suspension
• Any size sway bar may be used. Bushing and bearing material in the suspension is considered free.
• Any shock absorber may be used. The stock mounting points must be retained.
• Ride height may be adjusted, but springs or torsion bars may not be changed to adjust the ride height. Larger springs or torsion bars are not allowed. Springs cannot be cut to change the ride height.
• Hydro-pneumatic suspensions systems that are factory installed may be replaced with a stock version standard spring suspension provided such alternative was also available from the factory in the same model and model year.
• A two-point or a triangulated shock tower brace may be used as long as it is an easily removed, bolt in brace with all attachments points within 3 inches of a vertical plane passing through the top of the shock absorbers.
Wheels and Tires
• Wheel size, width and diameter, must be as available from the factory for that USA-available model, and placed on the car as delivered from the factory (front and rear). Aftermarket wheels of the same size may be used.
• Any size tire that fits the allowable wheel safely and is "DOT" approved may be used, including "R" compound. HOWEVER, ONLY OEM OR EQUIVALENT TIRES ARE PERMITTED IN ROOKIE CLASSES. No "R" compound tires in Rookie classes.
• Tires must fit without any exterior or interior modification to the wheel-well.
• At no time may a tire with cord showing be used, even if previously approved at the safety inspection.
Miscellaneous
• Any after market exhaust system may be used. The system must meet the noise restrictions noted in the "Generals".
• Alternate seats may be used and floor mats may be removed. Passenger and/or rear seats may not be removed (unless replaced with a factory or factory style alternative, such as a 997 with a GT3 rear carpet kit, or an “RS” interior kit in an air-cooled 911)
• Front or rear spoilers, including valences, side skirts and rear skirts, may be added or removed. Bumper material must remain factory original.  Spoilers, valances and skits must be Porsche or a suitable replica of a Porsche design.
• Removal or substitution of any component that might be considered to lighten the car is not permitted. The radio, air conditioner or anything that was a factory option may be removed.
• Sunroofs may be removed.
• Wheel spacers may be used.
• Ducting of air to the brakes or the use of "cool brakes" is permitted.
• Any series brake components may be used on any year car. All brake upgrades are permitted, including drilling, slotting and larger rotors and calipers, as long as they fit in the stock wheels. Any brake pad material may be used.
• Any steering wheel may be used.
• Spare tire, jack and tools may be removed.
- Batteries may be replaced with any type or size. Batteries may NOT be relocated.
Improved Class
Any of the following "improvements" will move a car into the "Improved Class":
• Two-point or Triangulated shock tower braces not meeting the requirements identified in Stock Class Suspension, including those that use their own mounting systems and plates, or those that are welded to the car.
• Adjustable spring plates if not stock for your car.
• Springs or torsion bars other than as delivered from the factory (Must maintain basic design/geometry from factory, i.e., torsion bars may not be substituted for coilovers)
• Camber Plates: Camber plates are permitted
• Suspension mounts: Any suspension mounts may be used
• Non-factory limited slip differentials may be used
• Any wheel wider or larger in diameter than as delivered from the factory for that model. (No race tires or slicks are allowed. Specialty autocross tires, such as Hoosier A6 or Kumho V710, may be used as long as they are DOT approved.)
• Update or backdate within a car series, e.g. a 1980 911 SC motor and transmission may be installed in any year 911 SC. Update or backdate outside of the series moves a car into the "Modified Class", e.g. 1980 911 SC motor and transmission installed in a 1974 911.
• Changing or modifying the airbox, e.g. Autothority Massflow sensor.
• Other than stock fuel injection.
• Larger than stock throttle body.
• Other than stock distributor.
• Relocating a battery to another part of the car (i.e. 911 battery replaced into “smuggler’s box,” or 924/944/951 battery replaced into trunk area.)  New location must be secure.
• Removal of radio equipment and/or air-conditioning/HVAC equipment

Modified Class
Any of the following "improvements" will move a car into the "Modified Class":
• Radical suspension redesign, such as replacing torsion bars with a coilover suspension.
• Engine swaps or any internal engine modifications, bolt on turbos or adjustable boost.
• Larger turbos or intercoolers.
• Changing the KLR (turbo) chip.
• Lightening the car using methods not allowed in stock or improved, changing body panels, including Lexan or equivalent exchanged for glass (except windshield, which must remain glass).  Note: Panels are not permitted to be removed altogether and not replaced (i.e. a roof removed and replaced by a roll bar is not permitted in Modified)
• Non-stock transmission or gear ratios.
Race Class
Any of the following "improvements" will move a car into the "Race Class":

• Non-DOT Race Slicks
• Removal of body panels, lights, glass/Lexan
• Anything else you can think of, provided the engine and chassis are both Porsche.
 
2010 SEASON CLASSES BY CAR TYPE

SS1, S1
914(All), 924, 912, 356 (All), Cayenne (S and Turbo)
SS2, S2
924 S, 924 Turbo, 944, 944 S, 928 (All), Cayenne (GTS)
SS3, S3
All 911 non-Turbo through 1983, 914-6 
SS4, S4
1984-1989 911 Carrera, Panamera (6 cyl.)

SS5, S5
1989-1994  911 (964 C2 and C4), 944 S2, 944 Turbo, 968, Panamera (s and 4S)
SS6, S6
Boxster through 2004, 911 Turbo through 1994 (Single Turbo), Panamera Turbo
SS7, S7
2005 and on Boxster, Boxster S (through 2004), 993 (1995-1998 911), 993 Turbo, 996 (1999-2004  911), 997 , Cayman Base (non-S),

SS8, S8
996 Turbo, Boxster S (05 – 08), Cayman S (through 08), 997S (all), 959
SS9, S9
GT3 (all), GT2 (all), Carrera GT (all), Caymen S (09+), Boxster S (09+), Boxster Spyder (10+) – No factory race cars allowed
 I1
All improved 4 cylinder cars 
I2
All improved 6 & 8 Cylinder cars to '89 (no 964 cars), Cayenne(S and Turbo)
I3
993, 964 (all), Boxster, Boxster S (through 2004), Caymen (non-S), Caymen S (through 08), 996 (non-Turbo), 997 (non-Turbo and non-S), Cayenne (GTS)
I4
GT3 (all), Caymen S (09+), Boxster S (2005+), Boxster Spyder, Carrera GT, 996 Turbo, 997 Turbo, 993 Turbo, 997 S, 959
M
All modified 4, 6 , 8 and 10 cylinder cars 
R
All race class 4, 6, 8 and 10 cylinder cars

X
All non-Porsches (paxed)
 
There will be several Championships decided during the 2010 Autocross season:
Class Championships
• For those who compete in more than one class during the season- The class competed in most frequently will be considered the primary class.
• For those that compete in two or more classes for an equal number of times during the season, the class with the highest number of championship points will be considered the primary class.
• NNJR Class Champions will be determined by taking the sum of all points earned for the year for each driver’s top 6 events. (This assumes 8 events.  If fewer or more than than 8 events are run, then amount of event to count will be 2 fewer than the total events run.)
• A minimum of four (4) events are required to be eligible for a season trophy.
 
Open Classes
• Open classes (not including ladies classes and rookie classes) will be eligible for Class Trophies at the end of the season based on their results within their class.  We will award positions 1st through 4th in each class.
• We will determine points by class as follows: First Place earns 10 points, second place earns 8 points, third place earns 6 points, fourth place earns 4 points, fifth place earns 2 points and all remaining places earn 1 point.   Missed events earn a Zero, however.
Ladies Class (Paxed), Rookie Class (Paxed)
• Ladies Classes are to be paxed to determine winners at each event.  Rookies Classes are also to be paxed to determine winners at each event.  The winners of the ladies and rookie classes will be assigned points based on their respective positions, and assigned points in the same way as the open classes (described above).
• Ladies Class Champions and Rookies Class Champions will be awarded Season Championship Trophies for positions 1st through 4th.