Spec Miata SM Specifications 2002 - CenDiv

Spec Miata Preparation rules. Spec Miata vehicles are showroom stock as defined by the SCCA GCR with the exception of the following restrictions or specifically allowed modifications. All models are eligible in the stated years. Unless specifically mentioned or approved in these rules, no additional modifications may be made. These rules are not intended as guidelines or

suggestions and they will be vigorously enforced.

Please Note: Spec Miata is a Regional Only Class in the SCCA. Rules and Verbiage may differ slightly Region to Region so please contact your local SCCA Region for specifics.

1. '90 - '93 Miata 1600cc @ 2275 lbs. (with driver)

2. '94 - '97 Miata 1800cc* @ 2430 lbs. (with driver)

Ballast will be mounted on passenger floor per GCR.

* '94 - '95 1800cc cars must use a 47mm throttle restrictor.

* '96 - '97 1800cc cars must use a 45mm throttle restrictor.

1. Stock only, per SCCA GCR.

1. Any aftermarket metal-type radiator may be used as long as it mounts to stock location.

2. Thermostats are free.

1. 1600cc may use a cone-type air filter.

2. 1800cc must use a stock air box. Filter is free.

1. Any spark plug may be used.

2. Any spark plug wire may be used.

3. Timing is free.

4. Master cut off switch is recommended. Installation per GCR.

1. OEM exhaust system, CAT may be removed.

2. Mazda Competition spec exhaust.

3. Single pipe exhaust after the OEM front down pipe constructed of components with a uniform maximum diameter of 2.25 inches and exiting behind the rear subframe. Muffler diameters are free.

1. 1600cc

a- viscous limited slip or Mazda comp LSD.

Part # QN10-64-A00 (previously T0Y1-27-200 & 0000-02-5501)

b- stock gear ratios.

2. 1800cc

a- OEM torsion limited slip.

b- stock gear ratios.

1. Mazda Motorsports Spec Miata package

(Part# K-SPEC-M5-SUSP - 1990-93 1.6 DOHC),

(Part# K-SPEC-M5-SUS8 - 1994-97 1.8 DOHC)

Includes:

a- Bilstein Shocks

1. Front (Part# 0000-04-5225-BL Qty 2 ea.)

2. Rear (Part# 0000-04-5226-BL Qty 2 ea.)

b- Eibach ERS 2.5" I.D. Race Springs

1. Front 700 lbs./ 6" (Part# 0000-04-9700-06 Qty 2 ea.)

2. Rear 325 lbs./ 7" (Part# 0000-04-9325-07 Qty 2 ea.)

c- Coil-Over Kit. (Part# 0000-04-5402AW *)

* This kit provides all necessary components to locate spring in upper perch and includes modified bump rubbers/stops. Welding a 2.5" spring locator on the upper mount and modifying the stock length original bump rubbers to the diameter of 2.25" is grandfathered.

d- Eibach Sway Bar Kit.

1. 1600cc: Front Bar 24mm adjustable / Rear Bar 15mm adjustable

(Part# 0000-04-5302-EB)

2. 1800cc: Front Bar 27mm non-adjustable / Rear Bar 15mm adjustable

(Part# 0000-04-5303-EB)

2. Cambers (maximum)

a- front: no more than 2 degrees negative.

b- rear: no more than 2.5 degrees negative.

3. Ride height free.

4. The WDCR "SM1.6" Tokico suspension is grandfathered until 01/01/02 for any car with the SCCA log book issued prior to 01/01/01.

5. Sub-frame braces may only be updated utilizing the Spec Miata kit from Mazda Competition.

1. Manual or power steering may be used. Power steering rack may be converted to manual.

2. Steering lock may be removed.

1. Rims 14" X 5.5" to 15" X 7". The required wheels are one piece, 13lb minimum in matched sets of four.

2. The required tire is the Toyo Proxes RA1 205-55-14 or 205-50-15.

1. Brake pads are free.

2. Steel braided lines may be used

3. Backing plates may be removed.

4. Emergency brake handle and/or cables may be removed.

5. ABS must be deactivated at the wheels.

1. No air dams, wings or spoilers are allowed other than "R" package chin spoiler. The "R" package chin spoiler may be added to any model.

2. Fenders and wheel openings shall remain unmodified except rolling or flattening of inner fender lip for tire clearance.

3. Hood and inner fender plastic trim optional.

4. Mirrors may be replaced and cars can be painted in non-factory colors.

5. Body molding, antenna, mirrors and emblems may be removed.

6. Windshield clips and rear window straps per the GCR Section 17.33 are permitted and recommended.

7. Hood clips are permitted. Stock hood latches may be disabled or removed.

8. Hood, fuel door and trunk releases may be relocated.

1. The driver’s seat may be replaced with any seat suitable for competition, including a racing-type bucket seat. If the driver’s seat is replaced, factory seat tracks may be modified, reinforced or removed to facilitate replacement mountings provided they perform no other function. All driver seats shall be provided with additional seat back support.

2. Gauges and instruments 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. Other than modifications made to mount instruments and provide for roll cage installation, the remainder of the dash panel shall remain intact.

3. Any steering wheel and attachments may be used except wood-rimmed type steering wheels.

4. Any shift knob may be used.

5. A/C system may be removed but not heater core or blower. Cooling water to the heater core may be bypassed.

6. Carpets, center consoles, cargo bins, seat belts, floor mats, radio system, headliners, dome lights, grab handles 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 is permitted. Removal or substitution of driver compartment panels is prohibited.

7. Any removable covers used to cover spare tires, tools, bins, etc., may be removed along with attaching hardware and brackets. Carpets, mats, and their insulating or attaching materials may be removed from the floor and recesses of the cargo/spare tire area.

8. Ducting may be added to provide fresh air to the driver/passenger compartment. This ducting will be located in the driver/passenger vent window area by means of a transparent/alternate vent window material and duct with no modifications to the body work. Door glass area must remain free of all material except required safety equipment.

9. Passenger seat, mounting hardware and restraints may be removed.

1. Welded or bolt-in cage with up to a maximum of 8 mounting points per Improved Touring Specifications of the GCR.

2. Door bars on driver's side allowed to outer skin of door. If door bars are used, door panel, door glass and mechanical hardware may be removed.

3. Hard top must be used and bolted in place.

4. All other safety per Showroom Stock section of the GCR.

1. In addition to what is required by the GCR, each car must display the following:

a- "SM" must be displayed on the front, in addition to both sides.

b- 16" MAZDA logo must be displayed on both side rear quarter panels.

c- 22" MAZDA logo must be displayed on the hood or front bumper.

All Spec Miata Competitors are encouraged to join Mazda’s Team Support Program. The program enables competitors to purchase Mazda stock and competition parts at discount prices. Call 800-435-2508, e-mail to comppart@mazdausa.com, or Fax 949-727-6943 to request an application and further details.

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This page was last updated on Saturday, 05. January 2008 10:18 PM -0600.