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1. Spare wheels and tires jacks and tools shall be removed Spare tire covers and trunk mats and or trunk carpeting shall be removed 20 9 Modifications may be made to the foot pedals to improve the comfort and accessibility to the driver Dead pedal foot rest and heel stop may be added 20 10 If ballast is required to meet the required weight it shall be added as follows 3 1 20 10 1 All ballast shall be securely mounted on the passenger floor 3 1 20 10 2 Each segment or stack of ballast shall be fastened with a minimum of two 2 one half 1 2 inch bolts for each fifty 50 pounds of ballast and positive lock nuts of SAE Grade 5 or better and shall utilize 2 or larger diameter load distributing washers A ballast plate secured to all four OEM passenger seat mounting holes may be used 3 1 20 10 3 Holes may be drilled in the passenger floorpan for the purposes of mounting the ballast and the floorpan may be reinforced for that purpose only 3 1 20 11 All cars shall run with both door windows fully open down 3 1 21 Safety 3 1 21 1 Roll cages shall meet all requirements of current CCR 3 1 21 2 Steering lock mechanisms must be removed or disabled 3 1 21 3 An electrical master kill switch is mandatory 3 1 21 4 Installation of a fire extinguisher or fire system is required 3 1 21 5 Glass headlights shall be taped Rear brake lights may be taped with transparent tape Turn signals front parking lights ba2. Brake lines shall be replaced with steel lines or teflon lined metal braided hose All four hoses must be of the same size and specification 3 1 17 3 Cars with antilock braking systems must have the system disabled or removed 3 1 17 4 Parking brake mechanisms and actuating components may be removed 3 1 17 5 Brake pads and brake fluid are unrestricted 18 Wheels Tires 3 1 18 1 All wheels must be used within the following limitations 3 1 18 2 Required rim diameter is fifteen 15 inches and rim width is seven 7 inches 3 1 18 3 Minimum weight of wheel is 13 0 lbs Spacers are permitted providing the effective offset of spacer and rim is a minimum of 25mm All four wheels must have identical effective offset 3 1 18 4 All wheels must be one piece metal castings not multi piece wheels bolted riveted or welded together 3 1 18 5 After market wheel studs are permitted 3 1 18 6 The spec tire is the The Toyo RA 1 in size 205 50 15 shaved or unshaved 3 1 18 7 Tire tread that portion of the tire that contacts the ground under static conditions shall not protrude beyond the fender opening when viewed from the top perpendicular to the ground To determine compliance the vehicle should be rolled through a powdered substance as raced with driver in order to indicate the tire tread contact patch under static conditions 3 1 19 Body Structure 3 1 19 1 Fenders and wheel openings shall remain unmodified It is per
3. 3 3 pes 3 3 a 3 1 3 1 3 1 11 1 Caster and toe unrestricted within the limits of the unmodified factory adjustments 3 1 11 2 Ride height unrestricted 3 1 11 3 Camber Front Maximum 3 degrees negative not more negative than three degrees Rear Maximum 2 5 degrees negative not more negative than two and one half degrees 3 1 11 4 No relocation or reinforcement of any suspension component or mounting points is permitted 3 1 11 5 Itis permitted to use the R model tie rod ends part N021 32 280A 12 Hardware items nuts amp bolts may be replaced by similar items performing the same fastening function s 13 Manual or power steering racks may be used Power steering racks may be converted to manual by removing all power steering components and looping or capping hydraulic lines 14 Towing eyes per CCR are required Stock towing eyes may be modified or replaced 15 Hubcaps and wheel trim shall be removed 16 All chassis structural electrical repairs if performed shall be in concurrence with factory procedures specifications and dimensions Unless specifically authorized by the manufacturer for repair or allowed by these rules no reinforcement i e seam welding material addition etc is permitted No acid dipping of the unibody is permitted Undercoating removal is permitted 17 Brakes 3 1 17 1 Backing plates and dirt shields may be removed 3 1 17 2
4. be added to provide fresh air to the driver compartment This ducting shall be located in the driver and or passenger vent window with no modifications to the bodywork Ducting shall not extend beyond the plane of the original side windows Such ducting will serve no other purpose than to provide cool and or fresh air to the driver 19 10 To improve driver exit through the window area the driver and or passenger vent window and vertical vent window supports may be removed as an assembly 19 11 Radio antennas may be removed Antennas for two way radios may be added 19 12 Pinch weld jacking points may be reinforced with lengths of material not to exceed 6 x 6 by 1 8 thick Driver Passenger Compartment Trunk 20 1 The driver s seat shall be replaced with a one piece bucket type race seat All seat mountings shall be reinforced Factory seat tracks brackets may be modified reinforced and or removed to facilitate replacement mountings provided they perform no other function The OEM passenger seat must be removed but a replacement seat meeting the specifications of the driver seat may be substituted To facilitate installation of a safety seat modification of the center tunnel and its intersection with the floor pan shall be permitted provided that no such modification interferes with the mechanical operation e g exhaust system transmission etc and only the minimum required removal is performed Material added sha
5. half shafts The original 90 93 model rear suspension uprights must be retained 3 1 10 Chassis 3 1 10 1 Suspension modifications are limited to the required addition of the MAZDASPEED Motorsports Development Spec Miata kit part number K SPEC M5 SUSP and those modifications detailed in this area The following is a breakdown of components supplied within these kits All parts numbers are MAZDASPEED Motorsports Development parts numbers No substitution of parts is allowed The kits must be used in their entirety 3 1 10 2 Shocks Front Bilstein part 0000 04 5225 BL Rear Bilstein part 0000 04 5226 BL 3 1 10 3 Springs Front Eibach ERS 700 Ibs 6 part 0000 04 9700 06 Rear Eibach ERS 325 lbs 7 part 0000 04 9325 07 3 1 10 4 Coil Over kit Front Rear part 0000 04 5402AW 3 1 10 5 Anti Roll Bars Eibach kit part 0000 04 5302 EB Front 24mm adjustable Rear 15mm adjustable 3 1 10 6 Sub frame braces may be updated to stock 1997 configuration utilizing the MAZDASPEED Motorsports Development Spec Miata kit Mazda part NA75 56 SAY 3 1 10 7 Anti roll bar links may be replaced and may be adjustable but the attachment points must remain stock The control arms and specified anti roll bar may not be modified One end of the sway bar s may be disconnected as a suspension tuning aid The bar must remain in place and be solidly attached to the suspension on one end 3 1 11 Suspension alignments 3
6. to limit fuel to a maximum of 94 octane Fuel must be from a commercially mass marketed supplier e g Sunoco Exxon Mobil or independent mass marketer e g Sheetz Limited use race fuels are not permitted Pump fuel may be purchased at the track e g Sunoco at Summit Point The Series Director or Race Director at their discretion may spec the track fuel or a common source close to the track Also it is within the power of the Series Director to provide spec fuel to competitors Competitors will be expected to pay for fuel at market price Race fuels such as but not limited to ERC brand are prohibited All fuel additives are illegal per the CCR Note event supplemental rules supersede this section 3 1 5 lgnition Electrical System 3 1 5 1 Ignition timing is limited to a range of 10 to 16 degrees BTDC 3 1 5 2 Batteries may be replaced with those of an alternate manufacturer provided they are of similar weight and size and are fitted in the standard location Additional battery hold down devices may be used and are strongly recommended provided they do not serve any other purpose i e ballast The combined weight of the battery and hold down device and or battery box shall not exceed thirty five 85 pounds 3 1 5 3 Spark plugs are restricted to the NGK BKR6E 11 Mazda part number BP0O3 18 110 3 1 5 4 Ignition wires are restricted to stock NGK Mazda part number 0000 18 121A or Taylor Mazda part number 0000 10 5301 3 1 6
7. Exhaust System 3 1 6 1 Catalytic converter may be removed and replaced with the replacement pipe part 0000 06 5423 All other exhaust components shall remain OEM stock the required The installation of Mazda Motorsports exhaust part 0000 06 5425 Mazda Comp Exhaust is allowed 3 1 6 2 Original exhaust system heat shields may be removed Any heat shielding may be added or removed aft of the stock downpipe providing that the additional shielding serves no other purpose 3 1 7 Clutch System and Flywheel 3 1 7 1 All cars shall use either the stock OEM pressure plate Mazdaspeed part B622 16 220A or the ACT pressure plate Mazdaspeed part 0000 0205401 SS The unmodified pressure plate shall be bolted directly to the appropriate stock unmodified flywheel Any clutch disk may be used 3 1 7 2 The OEM flywheel friction surface may be resurfaced but the minimum flywheel weight including the pilot bearing is 17 6 lbs 3 1 8 Cooling System 3 1 8 1 Any radiator may be used provided it is mounted in the original location maintains the same plane as the original core and requires no body or structure modifications to install New openings created by fitting an alternate radiator must be blocked and may not be used for the purpose of ducting air to the engine 3 1 8 2 The stock cooling fan s must be maintained other than the AC fan which may be removed when the entire AC system is removed 3 1 8 3 If used the aftermarket radiator sha
8. January 2012 Version 2012 1 NASA Showroom Spec Miata Official National Rules PURPOSE AND INTENT Showroom Spec Miata SSM was conceived as an entry level class with emphasis on simplicity equality and low cost SSM vehicles shall conform to Club Codes and Regulations CCR with the exception of the following restrictions or specifically allowed modifications These rules are not intended as guidelines or suggestions and they will be vigorously enforced The Showroom Spec Miata SSM class is intended to provide the membership with the opportunity to compete in a production based car with limited modifications suitable for racing competition The rules are intentionally designed to be more restrictive than the Spec Miata Class The vehicle identification number VIN shall correspond with the model year automobile classified VIN plates or stampings shall remain in place There must be a minimum of two 2 VIN plates or stampings that correspond with the model year automobile classified CLASSIFIED CARS AND WEIGHTS 1990 1993 Miata 1600 cc 2300 Ibs with driver AUTHORIZED MODIFICATIONS The following items represent the only modifications and safety items permitted and or required on Showroom Spec Miata automobiles other than safety items as required in the current CCR No permitted component modification shall additionally perform a prohibited function No updating or backdating of cars models specifications and or componen
9. ckup lamps and side marker lights must be taped 3 1 21 6 Air bag systems shall be disarmed and all airbag components may be removed 3 1 21 7 In any automobile where allowed removal of seat belts upholstery etc creates an opening between the driver passenger compartment and an exposed gas tank or part thereof including the filler tube a metal bulkhead which completely fills such opening shall be installed 4 Dyno Testing Procedures A certified Dyno report consists of three separate Dyno tests with SAE correction The highest peak horsepower number of the three tests will be used as the official certified horsepower for weight to horsepower calculations A smoothing factor up to five 5 is permitted All Dyno graphs must show decreasing power for 300 rpm from the peak horsepower level or the car must reach the rev limiter during the Dyno testing Dynamometer tests must be conducted on a Dynojet Model 248 or 224 Each Regional SM or SSM Director may retain the option to specify which business locations will be the approved centers for that particular region In addition NASA is actively conducting research on the use of in car GPS monitoring units as an alternate method of compliance testing of horsepower output Traqmate GPS data acquisition monitoring will be used in 2011 as an additional method of non invasive compliance testing but not as the sole reason for disqualification If NASA elects to begin compliance testing with GPS units
10. ll be modified if necessary to mount the stock OEM cooling fan in the original mounting location s 3 1 8 4 Thermostats may be modified removed or replaced 3 1 8 5 The Upper Radiator Seal part NA75 50 OK7A is allowed Racer tape or similar and insulating foam strips may be used to seal gaps between radiator radiator core support and plastic under tray Racer tape or similar may also be used in lieu of or in conjunction with seal plate to seal the top of the core support 3 1 8 6 A radiator screen of one fourth 1 4 inch minimum mesh may be added in front of the radiator and contained within the bodywork 3 1 8 7 The factory air conditioning systems may be removed Items that serve a dual purpose such as the alternator air conditioning compressor bracket may not be substituted 3 1 8 8 Engine coolant fluid coolant neater hoses and clamps may be substituted Heater core may be bypassed but it may not be modified or removed Heater water control valve s may be added or substituted 3 1 9 Transmission Final Drive 3 1 9 1 Transmission and final drive ratios must remain stock for the year of car 3 1 9 2 The OEM Viscous limited slip 4 30 1 or Mazda Competition Parts part number QN10 64 A00 previously TOY1 27 200 amp 0000 02 5501 is allowed 3 1 9 3 It is an allowable conversion to the 99 05 differential housing and the 4 3 differential gear ratio from the 99 05 model years this conversion includes the driveshaft and
11. ll provide thickness and strength approximately equal to the removed material 20 2 Any steering wheel except wood rimmed types and its required mounting modifications may be used Any shift knob may be used 20 3 Gauges and instruments including data systems may be added replaced or removed They may be installed in the original instrument s location using a mounting plate s or any other location using a secure method of attachment The vehicle s Check Engine light shall remain functional Other than modifications made to mount instruments and provide for roll cage installation the remainder of the dashboard shall remain intact 20 4 Any interior or exterior mirrors may be used Mirrors may be removed 20 5 Carpets center consoles cargo bins seat belts floor mat radio system headliners dome lights grab handles sun visors and their insulating and attaching materials may be removed Other than to provide for the installation of required safety equipment or other authorized modifications no other driver passenger compartment alterations or gutting are permitted 20 6 The driver passenger side door window glass window operating mechanism and inside door latch lock operating mechanism may be removed and the inner door structural panel may be removed The stock side impact beam and the outside door latch lock operating mechanism shall not be removed or modified 20 7 Two way radios may be used 20 8
12. mitted to roll under or flatten any interior lip on the wheel opening for tire clearance Non metallic inner fender liners may be removed 3 1 19 2 Body repair shall be performed using every reasonable effort to maintain stock body contours Any body repair modification having as its purpose increased clearance is prohibited Cars shall meet the requirements of current CCR at all times 3 1 19 3 No air dams wings or spoilers are allowed other than the R package Miata chin spoiler provided it is mounted in the OEM location 3 1 3 1 3 1 3 1 3 1 3 1 3 1 3 1 3 1 3 1 20 3 1 3 1 3 1 3 1 3 1 3 1 3 1 3 1 3 1 3 4 19 4 Windshield Clips Rear Window Straps are permitted and recommended 19 5 Convertible tops and attaching hardware shall be completely removed Cars may compete with the Mazda factory detachable hard top or Snug Top in place latches shall be replaced with positive fasteners but it is not mandatory When no top is used driver shall wear arm restraints and the cage must meet the helmet clearance rule 19 6 Body side moldings rocker panel moldings and wheel opening trim pieces may be removed 19 7 The plastic trim on the hood windshield washer nozzles and tubing and windshield wiper wing may be removed 19 8 Hood and trunk clips are permitted If so equipped stock hood latches and trunk latches may be disabled or removed 19 9 Ducting may
13. ributors rather than from the manufacturer It is not intended to allow parts that do not meet all dimensional and material specifications of new parts from the manufacturer Note that OEM replacement is not necessarily the same as OEM equivalent All engines components and parts must have been offered for sale in a Mazda Miata sold by a dealer in the United States of America All engines and their internal components must remain stock except as provided by these rules and within factory specified tolerances 3 1 Engine Modifications 3 1 1 lInduction System 3 1 1 1 All air entering the intake tract shall pass through the unmodified stock air inlet 3 1 1 2 Cars must use the unmodified stock air box An unmodified OEM style filter element must be installed in the air box 3 1 1 3 Fluid hoses and clamps oil filters fuel filters and belts fan alternator etc may be substituted with others of equivalent OEM specifications 3 1 2 Camshafts shall comply with the Official Soec Miata Camshaft Data as supplied by the NASA Tech Department 3 1 3 Any lubricant may be used Oil additives are unrestricted 3 1 4 Fuel System 3 1 4 1 Unleaded fuel filler trap door and restrictor plate in filler neck may be removed 3 1 4 2 Refer to current CCR and class rules for permitted fuel All cars are to have fuel test port installed for the collection of fuel samples 3 1 4 3 The current CCR Section is further restricted for SSM
14. ts thereof shall be permitted except as specifically authorized A Mazda Factory Service Manual FSM for the specific make model and year of automobile is required to be at the disposal of each entrant The manual is intended to aid a Scrutineer in identifying parts and the configuration of the automobile Overhauled engines must conform to the power and torque specification and will be sealed by an appreved vender It is no longer required to have engines sealed by an approved vendor however engines must conform to power and torque specification of a maximum of 106hp and 102 ft Ilbs and documented annually via a Dynomometer Dyno Certification Form Dyno testing procedures are outlined in section 4 The application and or use of any painting coating plating heat tape or impregnating substance i e anti friction thermal barrier oil shedding coatings chrome anodizing etc to any internal engine transmission or differential surface or internal or external exhaust manifold or downtube surface is prohibited All adjustments shall be at the manufacturer s specification in the FSM and or within the manufacturer s specified tolerances except as permitted within these rules Stock replacement parts may be obtained from sources other than the manufacturer provided they are the exact equivalent of the original parts The intent of this rule is to allow the competitor to obtain parts from standard industry outlets e g auto parts dist
15. without Dyno testing confirmation competitors will be given adequate notice prior to their use including details of the units to be used so that they may do their own testing if desired
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