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Stock 4


Stock unless otherwise stated.

We will follow MMSA 201
7 rules.

BODY:

1. Any 2 or 4 door foreign or domestic car with 94
" to 101.5" wheelbase. Wheelbase must match make and model of car. Stock auto only.

2. May have complete aluminum body but must retain stock shape and appearance.

3. Inner panels may be removed.

4. No FWD or MID engine cars.

5. Must have floor pan on both sides to rear of front seats.

6. Must have rear firewall or driver compartment must be boxed in
.

7. After market nose piece ok. MD3 nose ok. Molded fenders must mount flush on top and sides of metal fenders and no wider than 1 inch outside the tires.

8. May run a 6 inch rear spoiler - can
't go over side of quarter panel - no longer than width of car . Spill plates ok. Spill plates measurements bottom 16" rear 8" high 4" across the top rear and 4" high in the front.

9. Interior spoiler no more than 4
" and no higher than dash.

10. Rear bumpers must NOT extend past the inside of the rear tires unless it has a bumper cover or turns forward (if turned forward must be on a 90* angle NO SHARP CORNERS/EDGES).

11. 68
" max width at any point.

12. 38
" max ground to deck at bottom of spoiler.

13. Aluminum OK to close rear of car MUST come down to frame rails (No holes or flaps)

14. May use lexan in rear windows.

15. Must run hood.

16. Breather may stick thru hood.

17. Cold airbox OK but air holes in hood only not in firewall.

18. May have hole in firewall big enough for header to pass thru (Tech discretion if hole is too big)

19. May replace top 1/4 of firewall with steel or aluminum metal (this doesnít mean the whole fire wall) no lower than the original master cylinder hole in firewall. NO holes above or below the deck.
**Acceptable body infractions will result in up to a 50lb penalty in the area of the infraction** **All body infractions are not acceptable-Tech Mans Discretion**

CHASSIS/SUSPENSION:

1. Must have roll cage and all safety equipment.

2. Roll cage must be secured to unibody.

3. May tie chassis together by splitting floor pan and put square tubing in from the top and may stick thru the floor pan BUT NOT totally underneath.

4. Square/ roll cage tubing from strut forward is acceptable.

5. May use square tubing or roll cage material from back of shock mounts to rear of car- must be straight- no angling of material.

6. All A-frame and trailing arms must be stock and mounted in STOCK location. (May cut lower A-frame for caster/camber adjustments).

7. May cut Top trailing arm/s or re-drill for pinion angle only.

8. Lowering blocks OK.

9. Caster/Camber plates OK.

10. Adjustable buckets or Jacking bolts OK. (Buckets or Jack bolts may be raise for spring travel).

11. May cut pan hard bar- must be NON ADJUSTABLE.

12. Mono Balls allowed.

13. STOCK MOUNTED body shocks may have heims (bottom only) May be adjustable. NO CANISTER STYLE SHOCKS ALLOWED.

14. May adjust shocks for travel but cannot change the angle of the shock. (Not mounted to roll cage).

15. Offset in steering rack OK.

16. Bump steer not allowed.

17. **$150 buy rule per shock**

18. **$300 buy rule per strut**

BRAKES:

1. 4 wheel Disc brakes permitted must have OEM components.

2. Dual master Cylinder permitted.

3. 3 wheel brake shut off permitted.

4. NO adjuster or cut-off within reach of driver.

5. Stock rotors and drums. NO lightning but may remove caliper and rotor on RF ONLY. (Ford on Ford, Toyota on Toyota)

WHEELS & TIRES
:

1. 8
" max width. Beadlocks OK; Outward facing Only

2. HOOSIER 400s (No grooving or siping)

3. NO Chemicals Allowed- see protest.

4. Needling allowed.

REAR END:

1. Any stock up to 8.8 for make of car

2. No gun drilled axles (May weigh axles to compare if necessary).

3. No full spools.

4. Mini spool OK.

5. Housing cannot be modified for gear clearance

6. May lock rearend by weld, mini spool, limited slip (Limited slip unit must be stock- NO aftermarket units).

7. Cut gears add 25lbs.

8. If gears are polished, must add 20 lbs. (If cut and polished, add both penalties).

*ALL PARTS OF ENGINE MUST HAVE BEEN AVAILABLE ON CARS AND TRUCKS SOLD IN AMERICA. NO FRONT WHEEL DRIVE HEADS, INTAKES, ETC, CAN BE USED ON A REAR DRIVE MOTOR*

ENGINE: WEIGHT 1 LB PER CC 2000LB MINIMUM

1. Stock engine location - no set backs

2. No engines with more than 2 valves per cylinder

3. Ford in a Ford, Toyota in a Toyota

4. No rotary or turbo or double OHC permitted.

5. OEM blocks only .080 over max bore + .010 for wear - not to exceed 2500 cc + .080 over bore.

6. Ford may sleeve a 2300 cc block to a 2000cc.

7. Aluminum cam gear or pulley allowed.

8. Any steel connecting rod - no aluminum or titanium.

9. NO titanium wrist pins.

10. Only Babbitt style bearings allowed (NO roller bearings) Coated OK.

11. Stock crank with stock stroke + .010 tolerance.

12. NO AFTERMARKET CRANKS (Stock lightened crank must add 50 lbs in front of fire wall)

13. All engines must use an in-block wet sump oil system.

14. Racing oil pans permitted.

15. NO dry sumps allowed.

16. Any flat top piston - Toyota 1600 and 1800 may run dome of .235 tall only. (.267 dome must add 50 lbs.

17. Formula for cc - bore x bore x .7854 x stroke x 4 = cid then divide cid into .061 tolerance .010 for wear.

18. May run EVAC to header only. NO VACCUM PUMPS.

19. May run electric water pump.

20. May run electric fuel pump.

21. Ignition- Stock or Melís Ignition ONLY. (No Boosters on ignition) (NO traction control allowed).

22. Radiator must be mounted in front of engine.

HEAD:

1. MUST HAVE BEEN AVAILABLE ON US CARS FROM FACTORY

2. OEM may be changed from one size engine to another without modification.

3. May have competition valve job with any angle or depth. Must not touch bottom of valve boss.

4. All angles MUST be concentric with valve guide.

5. Any steel valve stock diameter may be undercut stem +.009 tolerance

6. Valve stem must be stock diameter for year model of head. (No 7mm valve stem in a Ford).

7. Double valve springs OK-must be steel.

8. Beehive valve springs OK- must be steel.

9. Any steel retainer

10. Lifter has to be stock diameter - solid OK

11. NO PORTING or POLISHING.

INTAKE:

1. OEM only.

2. No fuel injection manifolds. May modify for carburetor but must be approved before race. May bore straight down for clearance - NO RADIUS or BLENDING .

CARBURETOR:

1. Stock carburetor or Holley 350 CFM (#7448 or 0-80787-1) or 500 cfm #4412- Must pass no go gauges.

2. Must have airhorn with number.

3. Float bowl must face forward.

4. May cut end of screws and have holes in butterflies.

5. No thinning of shafts

6. No polishing or grinding

7. Spacer and adapter - any 1" max thick together - NO TOLERANCE

8. 2 gaskets
at .070 thick max each

CAM:

1. Solid or hydraulic NO ROLLERS

2. Maximum .425 lift at valve with .025 lash at valve for solid

3. Hydraulic ANY LIFT.

4. No swapping of any lobes - must be in stock order

5. No roller or needle bearings stock type only -coated OK

FLYWHEEL AND CLUTCH ASSEMBLY:

1. Stock flywheel must weigh 16 lbs.

2. Must have stock or stock replacement clutch and pressure plate.

3. NO LIGHTENING OF PRESSURE PLATE.

4. Only grinding, adding weight or drilled holes to pressure plate for balancing. Drilled hole size is 7/16 diameter max (NOT all the way around pressure plate) If there are holes all around the pressure plate, it WILL be considered lightened.

5. Stud for pressure plate OK. Must be a purchased stud, no custom, machined studs allowed.

6. Cannot relocate pressure plate bolt hole pattern

7. Scalloped flywheels add 50lbs

TRANSMISSION:

1. MUST BE STOCK with working forward and reverse gears.

2. Cannot remove or lighten of gears
.

DRIVE SHAFT:

1. Minimum of 1 1/2" diameter.

2. Must be steel.

3. Must have safety loop.

4. Must be painted white with number on it
.

HEADERS:

1. Spec Schoenfeld Fords #‎f-234v or #f-235v .

2. Toyotas #‎t168 Or stock manifold.

CC WEIGHTS, WEIGHT BREAKS AND PENALTIES:

1. Toyota 2tc and 3tc must weigh 2000 lbs. minimum
.

2. Ford 2.0 must weigh 2150 lbs. minimum
.

3. Any other than listed must weigh 1 lb. per cc.

4. HANS/ Full containment seat -25 lbs. (one or the other, not for both)

5. Scalloped flywheel +50 lbs.

6. .267 Dome Toyota Only +50 lbs.

7. Cut / Lightened Ring Gear +25 lbs.

8. Polished Ring Gear +20 lbs.

9. Lightened crankshaft +50 lbs. ( In front of firewall)

**All weight breaks or penalties must be claimed on hood/fender at all times and Tech Man notified**

PROTEST: (Two things only) $300.00 with track retaining $100.00

Bottom end only protest: $400.00 with track retaining $100.00

Under hood visual protest: $50.00 straight fee to look at carb and stock exhaust manifold. (After heats only)

Tire Chemical Protest: $100.00 per tire to protest. $100 per tire acceptance fee. 3 grooved strips removed from tire & sent for lab testing.

Fuel Protest
- $50.00

 

 

 

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