MODIFIED STREET RULES 2021

MUFFLERS REQUIRED

WEIGHT MUST BE 3000LBS AT ALL TIMES

WEIGHT MUST BE POSTED ON DRIVER SIDE A-PILLAR

NO RADIOS OR MIRRORS ALLOWED

 

FRAME

A. Stock for make and model

B. Unibody frames may be connected front to back

C. All frames may be X braced

D. All cars must have FULL driveshaft loop

E. All cars must have COMPLETE (AS FROM FACTORY) FRONT CLIP. May be tubed from rear of front clip back. Square tubing only. Leaf spring cars must have factory front spring bucket. 1 hole only

F. All hook up points must meet factory measurements. One hole only no adjustments

G. No 93 up chassis allowed until more research has been done.

H. Johnson frame permitted.

ROLL CAGE

A. All cars must have boxed roll cage with 1.5” o.d. x .095” minimum tubing

B. Must have 3 bars in driver door and 2 bars in right door

C. Loop around engine compartment permitted

D. 2 bars may run from halo loop down to rear frame rails

WHEELBASE

A. Stock for make and model. 1” tolerance total. (exp. 107” left side 108” right side)

B. Leaf spring Camaro 108

C. Metric Chassis 108.5

D. Strut Camaro 101 E. 1 inch tolerance from factory specs

SUSPENSION

A. Must be stock for make and model

B. Wedge bolts permitted

C. Racing shocks permitted. $200 claim rule per shock Non-adjustable only. 1 shock per a. wheel. Strut cars may run non-working strut with racing shock on left and right side

D. Racing springs permitted

E. Aftermarket tubular top A-frames permitted. NON- ADJUSTABLE TUBES. a. Aftermarket top A-frame mounts permitted

F. Stock bottom A-frames and mounts only. NO ALTERING

G. Adjustable leaf spring shackles permitted. NO SLIDERS

H. Adjustable caster/camber plates permitted on strut cars

I. Adjustable sway bar permitted

J. No bump stops permitted on shocks or chassis

K. Aftermarket rear control arms

L. Adjustable lowering blocks.

STEERING

A. Stock for make and model

B. Speedway aftermarket 3-piece spindle permitted

C. Heim joint or adjustable tie rod ends permitted

BRAKES

A. 3 wheel brakes permitted. Single piston calipers only. Front and rear.

B. Dual master cylinders permitted. May have in car adjuster

WHEELS/TIRES

A. Steel wheels only. 10” max width. ½” tol.

B. Oversized wheel studs and lug nuts permitted

C. Bead lock wheels permitted .

D American Racers Medium compound

IGNITION

A. Factory HEI or single point only

B. Distributor may be locked

C. Soft touch rev control box permitted

REAR ENDS

A. Stock type rear end only. NO QUICKCHANGE ALLOWED

B. May be locked

C. 9” Ford Grand National floater permitted

BODY

A. Factory stock appearing / aftermarket steel or aluminum bodies permitted. Body must match chassis

B. All glass and flammable material must be removed

C. Headlights, tail lights, and wheel covers must be removed

D. Body may be hulled

E. Doors must be bolted, strapped, welded, or pop riveted

F. Track approved steel firewall and floor pan

G. Area between driver and fuel cell must be totally covered in sheet metal

H. May run aftermarket stock appearing nose. NO LATE MODEL SLOPING, MD3 OR DOMINATOR NOSES ALLOWED

I. No flat side bodies allowed. Must have break on both sides.

J. No late model flat roofs allowed. Must be arched.

K. May be open in rear

L. 6” maximum material on spoiler blade from top of deck to top or spoiler blade. Spoiler sides start at 2” and end at 8”. 18” maximum length. Both spoiler sides must be same size

BUMPERS

A. All bumpers must be track approved

B. Must not have any exposed sharp edges. Tube bumpers must be capped

C. Must be securely attached with lift hook

Engine Option 1

A. GM Part 88958602/19258602/88858602 – Weight 3,000lbs

B. These engines are sealed at the intake manifold, cylinder head, front cover, and oil pan with special twist off bolt head originally from Chevrolet performance. Original GM seal. Bolts or GM cap seals or Crate USA Gen III (yellow) Or Gen IV (green) are the only seals allowed. Crate engines must not be altered. Modified or changed from factory specs.

C. The sealed engines must remain intact and not be tampered with any seals that have been removed or tapered with will make the engine illegal and not eligible for competition.

D. No changes are allowed to the engine including the intake manifold, heads, valve covers , front cover, oil pan, harmonic balancer, or any other parts on or in engine.

E. No vacuum pumps

F. All crate engines must remain stock as they came sealed from the factory. Crate engines must not be altered, modified, or changed from factory specs.

G. Any GM cast iron straight plug Vortec permitted Dart SS 10024266 permitted. Engine Quest ENQCH350I permitted

Engine Option 2

A. GM 362 cubic inch maximum 3200lbs.

B. .060” over stock bore permitted. (exp 4.060”)

C. Any header permitted

D. Solid or hydraulic cam permitted. NO ROLLER CAM OR MUSHROOM LIFTERS PERMITTED .500 lift not over

E. Stock I-BEAM rods only. Scat or Eagle stock replacement rods permitted.

F. GM, Scat or Eagle cast steel crankshaft permitted. Must be stock 3.48” stroke. Steel crankshaft permitted. Must weigh 49 pounds. No knife edge or windage cutting allowed. Angles must not be altered in any way.

G. Balancing permitted

H. Ford and Chrysler stroke may vary

I. Flat top 2 valve relief pistons permitted

J. OEM production engine blocks only

K. Aluminum water pump permitted

Engine Setback Rule:

A. Engine must be mounted in stock location, center of chassis. #1 spark plug must be in front of or centerline of oper ball join 17 inches from forward steering box bolt to #1 plug.

B. Weight penalties of 50lb per ½” will be added forward of water pump for improper set back

HEADS

A. Maximum valve size 1.940” intake 1.50” exhaust 2.02 valves 50lb weight penalty

B. No angle cut heads allowed

C. Stock valve job only

D. No porting, polishing or matching of ports permitted

E. Screw in studs and guide plates permitted

F. GM- OEM factory production cast iron, straight plug heads only. Vortec 062 or 906 heads permitted. No Vortec bowtie heads permitted.

G. Ford- must be factory type head. No 10 degree heads allowed. World product #WRL053030-1, DART #13310080 heads permitted. Must add 50lbs

H. Roller rocker arms permitted

INTAKE

A. Aftermarket intake permitted. One 4-barrel type only.

B. High performance intake permitted

C. No porting, polishing or matching of ports

CARBURETOR

A. Stock 3310 (750) or smaller single pump,  Holly vacuum secondary permitted-( NO Dominator, HP, or Quick Fuel Carburetors)

B. Choke horn may be removed A.

C Rear metering block permitted

D. No porting or polishing permitted. Will be checked with go/no go gauge D. No screw permitted in vacuum secondary

E. No carburetor spacers of any kind allowed

FLYWHEEL/CLUTCH

A. Steel flywheel only. 14lb minimum

B. Z-28 flywheel permitted- If you run a small Clutch you MUST add 50LBS

C. Ford may run aluminum flywheel. 14lb minimum

D. Stock/stock replacement pressure plate only. Solid hub clutch disc permitted. Solid round disc only. NO SIX PAD DISC ALLOWED. 10 ½” MINIMUM DISC

FUEL

A. Gas only

B. No additives

C. No electric fuel pumps permitted

D. Securely mounted fuel cell mandatory

RADIATOR

A. Any type radiator permitted. Must be in front of engine

STARTER

A. Any block mounted starter permitted. Car must start under its own power

TRANSMISSION

A. Stock 3,4 or 5 speed permitted.

B. Automatic transmission permitted. Must have working torque converter

C. Must have 2 forward and 1 reverse gears

D. No direct drive transmissions allowed

E. 602 may use Burt type stock bellhousing

WEIGHT

A. 3200lbs minimum at any time

B. Sealed 602 engine 3000lbs

C. Head and neck restraint, full containment seat and on board fire suppression system recommended

SAFETY REQUIREMENTS

A. Approved helmet and FULL fire suit mandatory

B. Properly installed 3” lap belt with 2” shoulder harness in good condition.

C. Properly mounted fuel cell

D. Must have securely mounted fire extinguisher within driver’s reach

E. Must have securely mounted bucket type racing seat. Full containment seat recommended.

NUMBERS

A. Must be minimum of 18” tall on both sides of car

B. Must be visible and legible from scoring tower

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SEE BOTTOM OF ALL RULES FOR PROTEST FEES FOR MODIFIED STREET!!!!

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2021 STOCK V8 RULES

 

MUFFLERS ARE REQUIRED

WEIGHT MUST BE POSTED ON DRIVER SIDE A-PILLAR NO MIRRORS-NO RADIOS

Attention Driver - All cars and components must be stock unless otherwise stated in the rules below. If it is not mentioned or stated otherwise below, it is NOT a gray area. If it doesn't say you can do it, DON'T do it.

 

FRAME

1. Stock for make and model

2. Sub frame connectors permitted. Front to back only. NO X BRACING

3. Full driveshaft loop mandatory

4. No 93 up chassis allowed until more research has been done.

ROLL CAGE

1. All cars must have boxed roll cage with 1.5" o.d. x .095

2. Must have 3 bars in driver's door and 2 bars in right door

3. Loop around engine compartment permitted

4. Two bars may run from hallo loop to rear frame rails

WHEELBASE

1. Stock for make and model

2. .5" tolerance side to side. (exp. 101" left side 101.5 " right side)

SUSPENSION

1. Stock for make and model

2. No jack/wedge bolts

3.  Non Adjustable Racing Shocks permitted must be mounted

4. Racing springs permitted

5. Adjustable spring cups allowed.

6. Non-adjustable lowering blocks permitted on leaf spring cars

7. Tube upper a arms ok must have stock length & mount.

STEERING

l. Stock for make and model

BRAKES

l. 3 wheel brakes permitted

1. Factory disc brakes on rear permitted. Steel calipers only.

2. No adjustable proportioning valves permitted

WHEELS/TIRES

1. Steel wheels only. 8" maximum width.

2. All wheels must be same offset.

3. I inch wheel spacer permitted anywhere on wheels.

4. American Racers Stock or Hard compound

5. Oversized wheel studs and lugs permitted

6. No chemical altering allowed

REAR END

1. Stock for make and model

2. May be locked

3. 9" Ford permitted. Floater add 501bs.

4. Spool only or welded spider gears

5. Rear tires must track within lin of front tires

BODY- Go by Drawing

l . Factory steel body. May be hulled. Stock steel — Top OEM stock

1. After market steel replacement parts allowed. Steel or aluminum steal OEM top & trunk lid

2. All glass and flammable material must be removed

3. Headlights, tail lights, and wheel covers must be removed

4. Doors must be strapped, welded, or bolted

5. Wheel-well openings may be cut for minimum tire clearance

6. Must have FULL factory fire wall and floor pan from rocker to rocker and to behind

a. driver's seat

1. Area between driver and fuel cell must be totally covered with sheet metal

2. May run aluminum spoiler. 6" maximum material from top of deck to top of spoiler

blade. Spoiler sides start at 2" and end at 8". 1 8" maximum length. Both spoiler sides must be same size

8 goa y

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1. Only stock appearing plastic nose and tail pieces are allowed

2. B pillars must be stock OEM dimension. (if you have SD windows they cannot be closed off.)

3. Stock appearing aluminum doors, quarters and fenders.

4. Rear of car must be closed. Plastic tail piece allowed must have 2" drop from window to tail piece.

5. 47" center of spindle to front of nose.

6. 50" from the center of axel to the rear of car. (tail piece)

7. 5" drop rear of hood to nose

 

BUMPERS

A.            Must be securely attached B. Must have lift hook for m•ecker.

1. Must NOT have any exposed sharp edges.

2. Must be track approved

 

ENGINE

1. 362 cubic inch maximum

2. Stock crankshaft and rods only. Balancing permitted. Stock replacement crank rods permitted

c.         Replacement 4 valve relief flat top pistons permitted. NO LIGHT WEIGHT PISTONS

1. Hydraulic cam only.

2. Cam lift .460 maximum at valve. Checked with solid lifter and 0 lash

Headers permitted

1. Must be in original location

2. Solid engine mounts permitted. No mid-engine mount.

Ford 1.6 rocker arm

Ford GT40 heads permitted

 

HEADS

1. Any GM straight plug cast iron head allowed

2. no vortex heads

3. Maximum valve size is 1.94 intake, 1.50 exhaust

4. No angle cut heads

5. Stock valve job only

6. No porting, polishing or matching of ports

Studs may be pinned. Screw in studs allowed.

1. 1.5 roller rocker arms allowed

 

INTAKE

        A.        Factory steel intake (no high-rise aluminum)

Edelbrock 2101 permitted

1. No porting, polishing or matching of ports

 

CARBURETOR

1. Holley 1850/0-80457 permitted. 600cfm, vacuum secondary, single line, single metering block only

2. A.F.B. carburetors permitted

3. Choke flap may be removed

4. Adaptor permitted

5. Spacers are not permitted F. $350 claimer on any carb IGNITION

6. Factory single point or HEI only

7. Stock cap mount coil only

8. No ignition boosters

9. Vacuum advance may be locked out

 

FLYWHEEL/CLUTCH

1. Stock for make and model

2. Stock / stock replacement only

3. No solid hub clutch or racing clutch/pressure plate permitted

4. Z28 flywheel permitted

 

FUEL

1. Gas only

2. No additives

3. NO electric fuel pumps permitted

4. Securely mounted fuel cell mandatory

RADIATOR

A.            Stock or racing aluminum permitted B.     Must be mounted in front of engine

 

STARTER

A. Factory or racing starter permitted

 

TRANSMISSION

1. Stock 3,4,5 speed permitted

2. Automatic permitted with full size working torque converter. STOCK

3. No modifications

 

SAFETY REQUIRMENTS

        A.        Approved helmet and FULL fire suit mandatory

1. B Properly mounted 3" quick release lap belt and 2" min shoulder harness

2. Properly mounted, working fire extinguisher mounted within driver's reach

         c.         Properly mounted racing seat mandatory

1. Full Containment seat recommended.

 

NUMBERS

1. Must be at least 18" tall on both sides of car

2. Must be visible and legible from scoring tower

WEIGHT RULE

1. 3200 lbs minimum at all times

2. Weight you are claiming MUST be posted on drivers side A pillar or roof corner

 

PROTEST FEES

(Must be 5 minutes after race is complete)

1. One head, cam, bore, stroke, carb, lifter, intake, and distributor- $350.00 with $100 acceptance fee-TRACK RETAINS THIS FEE!!!

2. Complete Engine-$500-$150.acceptance fee

3. Flywheel, Clutch, Pressure Plate, $150- $50 acceptance fee

4. Wheelbase and Engine setback-$150-$50 acceptance fee

5. Suspension$150-$50 Acceptance fee

6. Complete Car- $800-$250 acceptance Fee

 

1. people from each team will be allowed in tech area. If either party misbehaves in any way during the tear down, the protest will stop and the misbehaving team will be disqualified.

 

 

VISUAL PROTEST

1. Must be made before event starts

2. $25 per item

3. TRACK RETAINS 100%

 

TRACK HAS FINAL SAY ON NEW COMERS!!!

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                                                          THUNDER SERIES RULES 2020

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GENERAL RULES

1: THESE RULES AND/OR REGULATIONS WILL APPLY TO ALL THUNDER SERIES SANCTIONED EVENTS

2: THUNDER SERIES OFFICIALS SHALL HAVE FULL AUTHORITY OVER SANCTIONED

EVENTS, AND IN THE EVENT OF ANY DISPUTE, THE HEAD OFFICIAL'S DECISION WILL BE FINAL

3: ALL CARS ARE SUBJECT TO BE INSPECTED BY THUNDER SERIES TECHNICAL INSPECTORS AT ANY TIME DURING THE EVENT

4: THE SERIES RESERVES THE RIGHT TO CONFISCATE ANY SUSPICIOUS, OR DEEMED ILLEGAL, COMPONENTS

5: THUNDER SERIES OFFICIALS RESERVE THE RIGHT TO ALTER OR AMEND THESE RULES AND/OR REGULATIONS IN THE INTEREST OF FAIR COMPETITION.

 

SAFETY

DRIVER SAFETY IS THE DRIVERS RESPONSIBILITY! THIS IS NOT THE AREA OF THE RACE CAR TO TRY TO SAVE MONEY.

1: ALL CARS MUST HAVE 3" SEAT BELTS WITH SHOULDER HARNESS, AND MUST BE ATTACHED TO

ROLL CAGE. 2 YEARS MAXIMUM AGE RECOMMENDED. 5 YEARS MAXIMUM

 

2: COMPLETE FIRE SUIT MANDATORY. up TO DATE NO HOLES

3: GLOVES AND RECOMMENDED

 4: FIRE SUPPRESSION RECOMMENDED. IF NO FIRE SUPPRESSION YOU MUST HAVE A WORKING FIRE EXTINGUISHER IN THE CAR WITHIN REACH OF THE DRIVER.

5: HEAD AND NECK RESTRAINT AND/OR CONTAINMENT SEAT RECOMMENDED.

 

MEMBERSHIP AND ENTRY FEES

1. ALL DRIVERS PARTICIPATING IN THUNDER SERIES SANCTIONED

TRACKS AND EVENTS MUST PURCHASE AN ANNUAL MEMBERSHIP AT A COST OF $75 PER YEAR. THIS MEMBERSHIP MAKES THE DRIVER ELIGIBLE FOR ANY THUNDER SERIES POINTS FUND MONIES AND CONTINGENCY AWARDS

 

2: ANY DRIVER PARTICIPATING IN A THUNDER SERIES EVENT THAT IS NOT A MEMBER WILL BE REQUIRED TO PAY A $15 ONE NIGHT TEMPORARY MEMBERSHIP FEE.

 

EVENT CONDUCT AND PENALTIES:

1. UNDER GREEN FLAG OR CAUTION FLAG CONDITIONS, THE SERIES DIRECTOR RESERVES THE RIGHT TO INVOKE PENALTIES AND/OR SUSPENSIONS OF ANY DRIVER WHO'S ACTIONS ARE DEEMED TO BE OVERLY AGGRESSIVE, OR FALL INTO THE CATEGORY OF ROUGH DRIVING.

2. DRIVERS WILL BE NOTIFIED OF PENALTIES THAT HAVE BEEN LEVIED BY THE SERIES DIRECTOR. ALL DECISIONS SHALL BE FINAL

3. NOTE: THIS RULE IS NOT INTENDED TO ELIMINATE COMPETITION OR ACCIDENTAL CONTACT.

HOWEVER, IT IS INTENDED THAT DELIBERATE CONTACT AND/OR OVER-DRIVING WILL BE PENALIZED

1. ANY COMPETITOR THAT VERBALLY ABUSES A SERIES OFFICIAL BY USING PROFANE AND/OR

DISRESPECTFUL LANGUAGE IS SUBJECT TO A FINE OF $100 FOR THE FIRST OFFENSE. A $300 FINE AND

ONE-RACE SUSPENSION AND LOSS OF POINTS FOR THE SECOND OFFENSE. MORE THAN TWO OFFENSES AND THE COMPETITORS WILL BE SUBJECT TO A ONE MONTH OR MORE SUSPENSION AND LOSS OF POINTS

1. ANY PHYSICAL CONFRONTATION, EITHER ON THE RACE TRACK OR IN THE PITS. WILL RESULT IN THE AGGRESSOR OR AGGRESSORS BEING SUSPENDED FOR ONE RACE; A LOSS OF POINTS; AND COMPETITOR WILL BE FINED $300 FOR THE FIRST OFFENSE. A SECOND OFFENSE WILL INCUR A SUSPENSION FOR THE REMAINDER OF THE SEASON, AND A MINIMUM $500 FINE.

2. ANY DRIVER WHO ENTERS ANOTHER DRIVERS PIT AREA WILL BE DEEMED THE AGGRESSOR. AWAY

FROM EITHER DRIVER'S PIT AREA BOTH DRIVERS WILL BE CONSIDERED AGGRESSORS. DRIVERS

SHOULD BE AWARETHAT THEY WILL BE HELD RESPONSIBLE FOR ANY MEMBERS OF THEIR RACE TEAM, AND THE ABOVE PENALTIES WILL APPLY EVEN IF THE DRIVER CONCERNED IS NOT DIRECTLY INVOLVED.

1. ANY INCIDENTS THAT OCCUR DURING THE LAST FIVE EVENTS OF THE SEASON COULD RESULT IN PENALTIES BEING APPLIED AT THE BEGINNING OF THE FOLLOWING SEASON.

2. ANY INCIDENTS THAT ARE JUDGED TO BE DELIBERATE ACTS OF AGGRESSION, WHETHER ON OR OFF THE TRACK, UNDER GREEN OR CAUTION, WILL RESULT IN DISQUALIFICATION AND A MONETARY FINE TO BE DETERMINED BY SERIES OFFICIALS.

3. SERIES OFFICIALS RESERVE THE RIGHT TO INCREASE THE ABOVE PENALTIES. DEPENDING ON THE SEVERITY OF THE INCIDENT

 

ENGINE RULES:

1. CHEVROLET PERFORMANCE PART NUMBER 88958602/19258602

2. THE SEALED ENGINES MUST REMAIN INTACT AND NOT BE TAMPERED WITH. ANY SEALS THAT HAVE BEENREMOVED OR TAMPERED WITH WILL MAKE THE ENGINE ILLEGAL AND NOT ELIGIBLE FOR COMPETITION. THEPENALTY FOR ANYONE TAMPERING WITH SEALS, MODIFYING ANY

INTERNAL ENGINE PARTS, OR CHANGING THE PARTS FROM STOCK AS DELIVERED SEALED FROM THE FACTORY WILL BE SUBJECT TO EXPULSION FROM RACING WITH ANY THUNDER SERIES SANCTIONED EVENT FOR THE REMAINDER OF SEASON ANDFUTURE SEASONS.

1. ANYONE RUNNING A RESEALED ENGINE WILL BE REQUIRED TO CARRY A PENALTY OF 50

POUNDS 25 WILL BE REQUIRED TO BE IN FRONT OF THE RACK AND THE OTHER 25 WILL BE REQUIRED TO BE IN FRONT OF THE MOTOR PLATE. THIS CAN AND WILL BE TAKEN OFF AND WEIGHED.

1. IN THE EVENT OF SOMETHING LIKE A LIFTER BUSTING OR BUSTING AN OIL PAN WE WILL HAVE THUNDER SERIES SEALS THIS YEAR SO WE CAN RESEAL SOMEONES ENGINE. AT ANYTIME IF A

HEAD OR TIMING COVER HAS TO COME OFF THE 50 PENALTY WILL HAVE TO BE INFORCED

1. NO CHANGES ARE ALLOWED TO THE ENGINE - INCLUDING BUT NOT LIMITED TO INTAKE MANIFOLD, HEADS,VALVE COVERS, FRONT COVER. OIL PAN, HARMONIC BALANCER, OR ANY OTHER PART/OR PARTS ON/OR IN

2. NO VACUUM PUMPS

3. ALL CRATE ENGINES MUST REMAIN STOCK AS THEY CAME SEALED FROM THE FACTORY. CRATE ENGINES MUST NOT BE ALTERED, MODIFIED, OR CHANGED FROM FACTORY SPECS

4. THERE WILL BE A SIOOO PROTEST ON A CRATE ENGINE. IN THIS EVENT IF IT IS A GM SEALED

ENGINE THE SERIES WILL PROVIDE OUR THUNDER SERIES SEALS TO RESEAL THIS ENGINE AND

THE WEIGHT PENALTY WILL NOT BE ADDED AS LONG AS THE ENGINE IS DECLARED LEGAL. $800 WILL GO TO THE ONE PROTESTED $200 WILL GO TO THE SERIES

9: THERE WILL BE AS3800CLAlM RULE ONACRATE ENGINE. IFYOU CLAIM THIS ENGINE you ARE NOW RESPONSIBLE FOR THIS ENGINE

 

CARBURETOR RULES:

1: ONE 6504 BARRELL CARBURETOR

2: ENGINE MUST BE NATURALLY ASPIRATED

3: MAY USE ONE 1 INCH, ONE PIECE, CARBURETOR SPACER (.040 TOLERANCE MAXIMUM) AND TWO

STANDARDPAPER GASKETS (MAXIMUM 0.070 INCH THICK); ONE GASKET BETWEEN INTAKE TO SPACER AND ONE GASKET BETWEEN SPACER TO CARBURETOR

4: WILL BE CHECKED WITH THE GO NO GO GUAGES.

5: NO SUPER BOWLS OR ICT BOOSTERS

6: ALL CARBURETORS MUST HAVE CONVENTIONAL STYLE FLOATS ALONG WITH NEEDLES AND SEATS. NO INDIVIDUAL CYLINDER TUNING OR EQUIVALENT ALLOWED.

7: Al I CARBURETORS MUST HAVE CONVENTIONAL •HOLLEY STYLE" STRAIGHT LEG BOOSTERS.

 

DISTRIBUTOR RULE:

1. MSD IGNITION SYSTEM. NO CRANK TRIGGER, DISTRIBUTORLESS MULTI-COIL,

OR MAGNETO IGNITION SYSTEM. 6AL OR 6ALN, or MSD 6CT IGNITION BOX ALLOWED. (NO GCT PRO) MUST BE A 6300 CHIP OR SET AT 6300.

1. NO ELECTRONIC TRACTION CONTROL DEVICE

3: CAN RUN HEI TYPE DISTRIBUTOR BUT MUST HAVE SOFT TOUCH BOX WITH 6300 CHIP.

4: IF YOUR CAR HAS TWO MSD BOXES IT MUST HAVE A 6300 CHIP IN EACH BOX NO MATTER WHAT.

5: $325 CLAIM RULE ON THE MSD BOX

 

STARTER RULE:

1. ALL CARS MUST HAVE WORKING STARTER

 

EXHAUST RULES:

1. COLLECTOR TYPE HEADERS REQUIRED. MUST HAVE FOUR (4) TUBES INTO ONE (1) COLLECTOR OF A CONSISTENT DIAMETER

2. MUFFLERS NOT REQUIRED UNLESS TRACK MANDATED. IF/WHEN MANDATED: MUFFLERS MUST HAVE SOME TYPE OF INTERNAL NOISE DAMPENING CHARACTERISTICS (BAFFLES, EXTRUDED HOLES, SCREEN, CHAMBERED, ETC.) MUFFLERS MUST MEETLOCAL SPEEDWA Y'S NOISE DECIBEL REQUIREMENTS. EXTERNAL MUFFLERS ONLY.

3. NO TRI-Y HEADERS

4: $350 CLAIM RULE ON HEADERS. IF MUFFLERS ARE WELDED TO HEADERS THAT IS ONE PIECE AND MUFFLERS GOES WITH THE HEADERS IF THEY ARE BOLTED TOGETHER you CAN KEEP THE MUFFLERS.

 

WATER PUMP

1 :CAST OR ALUMINUM PERMITTED. STOCK MOUNTED WATER PUMP AND FANS ONLY. NO ELECTRIC

FANS

2: NO ELECTRIC WATER PUMPS.

 

FUEL:

1: 93 PUMP GAS OR 110. NO MIXING OF ANY FUELS. NO E-85. NO ALCOHOL OR METHANOL. ANY OTHER FUEL WILL HAVE A WEIGHT PENALTY ADDED AT SERIES DESCRETION.

 

SUSPENSION:

1: LATE MODEL SUSPENSIONS ONLY. NO SPRING LOADED OR SHOCK TYPE 4 BAR RODS. ONLY

STANDARD SOLID BAR 4 BAR RODS. NO TORSION BAR FRONT OR REAR SUSPENSION. SWAY BAR 0K

2: ONE (1) COIL SPRING PER WHEEL. FLAT HELPER SPRING 0K. NO STACK SPRINGS ON ANY CORNER INCLUDING COIL. ONE PENSKE PYRAMID BLACK BUMP STOP ALLOWED ON RIGHT FRONT ONLY. BR 38 PART NUMBER. PART NUMBER MUST REMAIN IF YOU CUT. SO ALL CUTS MUST BE MADE FROM THE BOTTOM OF THE BUMP STOP.

3: WE WILL BE GOING BY THE DROOP RULE THAT THE SOUTHERN NATIONALS SERIES OF RAY COOK WILL BE USING. RULES AS FOLLOWS

IA.•15 INCH MAX HEIGHT AT TOP OF NOSE PIECE (RF CORNER)

2A: SOLID ADJUSTABLE DROOP LIMTERS PERMITTED MUST BE METAL CONSTRUCTION ONLY: CHAIN ONLY. AXIL BRACKET MUST BE SOLID WITH NO MOVING PARTS. BRACKET MUST BE ON TOP OF REAR END.

3A: PRE RACE TECH HEIGHT MUST BE BETWEEN 37" AND 39" (NO TOLERANCE) T-BAR MUST BE

STRAIGHT. DECK HEIGHT WILL AND CAN BE CHECKED ANYWHERE ACROSS THE BACK OF THE CAR.

4A: POST RACE TECH MUST BE NO HIGHER THAN 47" (1 INCH TOLERANCE) WILL MEASURE 6 INCHES FROM LEFT SIDE OF T-BAR.

5A: LEFT REAR TIRE WILL BE ADJUSTED TO 6 POUNDS OF AIR

6A: CAR WILL BE MEASURED WITH THE LEFT REAR JACKED up (BEHIND THE AXIL TUBE UNDER THE UNDER SWUNG) IN THE AIR UNTIL THE LEFT REAR WILL TURN FORWARD AND BACKWARD

7A: CAR MUST HAVE A FRAME (UNDERSWUNG) ON THE LR BETWEEN THE BELL OF THE REAR END

AND THE BIRDCAGE WITH A JACKPEG OR WEIGHT CLAMP BOLTED ON FOR THE JACK TO LIFT THE CAR 8A: CHAIN MUST BE TIGHT WHEN THE CAR IS JACKED UP FOR INSPECTION. MUST HAVE CHAIN.

9A- NO TYPE OF PADS WITH ANY GIVE ON TOP OF UNDERSWUNG BAR.

IOA-IF RUNNING CHAIN LIMITER ON RIGHT REAR MUST UNHOOK BEFORE CHECKING DROOP.

NOTE: IF T-BAR IS BENT INSPECTOR WILL USE A STRAIGHT EDGE ACROSS BACK OF CAR TO MAKE THE BEST CALL IF CAR DOES NOT HAVE UNDER SWUNG BAR TECH WILL USE BEST JUDGEMENT TO TECH.

 

SHOCKS:

1 : OIL SHOCKS (SPLIT VALVE PERMITTED) OR GAS SHOCKS PERMITTED. NON ADJUSTABLE/ NON CANISTER ONLY. NO AIR SHOCKS ALLOWED.

IA- NO EXOTIC BUILT SHOCKS- 6 INCH BODY MEANS 6 INCH SHAFT 7 INCH BODY MEANS 7 INCH SHAFT. NO INTERNAL BUMPS

1B- THE NEW AFCO CRATE SPEC SHOCK SERIES PACKAGE WILL BE ELIGIBLE WITH A 25 POUND WEIGHT BREAK TO ANYONE RUNNING THESE SHOCKS (THIS MEANS ALL SHOCKS ON THE CAR TO RECEIVE THE WEIGHT BREAK).

2: THERE IS A $200 BUY RULE PER SHOCK. ALSO you CAN ADD $150 AND BUY THE COMPLETE

ASSEMBLY (LESS SHOCK                  MUST BE IN THE TOP 5 TO BUY. IF you REFUSE ANY CLAIM you WILL

BE DISQUALIFIED AND LOOSE ALL POINTS AND SUBJECT TO SUSPENSION AND/OR FINE. THIS PROCESS WILL BE WATCHED BY TECH MAN AND THE PERSON BUY SHOCK. IF RUNNING THE SPEC SHOCK

PACKAGE THE SERIES HAS THE RIGHT TO SWAP OUT ANY SHOCK ON THE CAR WITH A NEW ONE.

3: ONE SHOCK PER CORNER EXCEPT LEFT REAR. you MAY RUN A DRIVE SHOCK

 

TRANSMISSION:

1: FIRST GEN STYLE BERT-BRINN-FALCON TRANSMISSIONS ALLOWED. ONE SHIFTER TRANSMISSIONS ARE ALLOWED WITH A 25 POUND WEIGHT PENALTY.

2: NO STRAIGHT DRIVES OR IN AND OUT BOXES.

3: IF RUNNING RAI I SPLINE TRANSMISSION CARBON FIBER DRIVESHAFT MANDATORY.

DRIVESHAFT:

1: CARBON FIBER ALLOWED AND RECOMMENDED FOR SAFETY.

 

REAR END:

1 : STANDARD QUICK CHANGE REAR END PERMITTED. NO TITANIUM OR EXOTIC MATERIALS AXILS, SPOOLS, GEARS, OR OTHER MATERIALS INSIDE REAR END-NO SMALL TIGER REAR ENDS.

BRAKE RULES:

1. STEEL BRAKE ROTORS ONLY. NO CARBON FIBER BRAKES. NO TITANIUM BRAKES OR OTHER EXOTIC MATERIAL BRAKE SYSTEMS

 

TIRES:

1: HOOSIER SPEC 1350 WITH 1600 SPEC OPTION ON RIGHT REAR ONLY

AMERICAN RACER SPEC 48 WITH 56 SPEC RIGHT REAR OPION ONLY

2: NO CHEMICALS: TIRE PROTEST IS $125 PER TIRE AND WILL BE SENT TO A LAB FOR RESULTS. LAB

RESULTS ARE FINAL. ACCEPTANCE FEE IS $125 PER TIRE. WE WILL CUT TIRE WITH A GROOVING IRON BLADE AND TAKE TWO SAMPLES FROM EACH TIRE TO SEND OFF. IF TIRE SAMPLE COMES BACK WRONG YOU WILL LOOSE YOUR MONEY AND POINTS FROM THAT RACE AND YOUR ACCEPTANCE FEE MONEY. THERE WILL BE OTHER RACE PENALTIES TO BE DETERMINED BY SERIES.

3: WILL PUNCH TIRES AT ANYTIME ANY TIRE PUNCHING BELOW WHAT WE FIND TO BE A NORMAL PUNCH CAN BE SAMPLED AND SENT TO A LAB FOR FURTHER TESTING. MAY PUT A NUMBER PUNCH RULE IN BY FIRST OF THE YEAR.

4: MAY CUT CROSS BARS IN EXITING BLOCKS WITH A NUMBER 1 BLADE. NO SIPING.

 

WHEELS:

1: STANDARD 15X14 INCH WHEELS.

 

MIRRORS:

1: NO MIRRORS.

RADIOS;

1: NO RADIOS

 

BODY:

1: MUST FOLLOW FASTBACK BODY RULES

WEIGHT:AND WEIGHT BREAKS

1: BASE WEIGHT IS 2425

2: ON BOARD FIRE SYSTEM GET 25 POUND WEIGHT BREAK 3: 1 POUND PER LAP BURN OFF FOR FEATURE RACE ONLY 4: WE WILL WEIGHT BY THE SCALES AT EACH TRACK. (5 POUND TOLERANCE)

5: NO WEIGHT BREAKS FOR CONTAINMENT SEATS OR NECK RESTRAINTS ANYMORE

 

HOBBY RULES:

Frame & Chassis:

1. Automotive frames permitted

2. Automotive snout must include: cross member, spring pockets, horns, and attaching rail as one complete unit as it was assembled at the factory. May trim spring pockets for clearance of racing springs and spring buckets.

3. Wheelbase of 103" on snout frames or stock for make and model on stock frame

 

Suspension:

1. Coil over springs permitted on rear. Outboard on front. No coil-over on front.

2. Jack bolts, racing springs, and racing shock permitted (4" min. spring.)

3. Racing leaf springs permitted — steel or fiberglass on rear (one type only)

4. Bottom A-Frame must be stock — no shortening or lengthening allowed

5. Top A-Frame may be tubular, but only be adjustable at the mounting plates to frame

6. Any GM or Ford spindle or racing spindle permitted

7. Front spring pockets must be in original location

8. No 5th coils. Air shock permitted

9. Lift bars permitted. Fiberglass/ pan hard bar/ solid rubber biscuit permitted J. Coil over eliminators permitted K. 3-link hook up/ no 4 link hook-ups.

L. Split valve steel shocks permitted (steel or aluminum) M. No gas shocks permitted Steering:

1. Rack and pinion permitted

2. Power steering permitted

1. Number 1 spark plug of Chevrolet must be no more than 2" to the center of top ball joint

2. Number I spark plug of Ford "302" & "351" must be no more than 4" to the center of top ball joint

 

Heads:

1. Cast iron ONLY

2. Straight plug heads or angle plug heads permitted

3. Vortec or 3001bs heads permitted

4. Approved stock replacement heads permitted

5. Double springs

6. Roller rockers permitted. No shaft rockers

7. Screw in studs and guide plates permitted

8. Stud girdles permitted

9. No more than three angle valve job

10. No porting, polishing, or port matching

 

Intake:

1. Aluminum intake permitted

2. Single carburetor type only

3. No porting, polishing, or port matching D. No homemade intakes allowed

 

Carburetor:

1. Only Holly four barrel only, no more than 750cfm permitted

2. H.P. carburetor permitted. No special production

3. No matching, porting, or polishing

4. Choke housing may be removed cut must be consistent with top ring of carburetor

5. 1 " carburetor spacers allowed

6. Maximum oftwo .060 gaskets allowed

 

Headers:

A. Any type permitted, but must run parallel to ground B. Mufflers required

 

Rear End:

1. Stock type rear end or equivalent

2. May be locked

3. Quick-change rear ends permitted

 

Transmission:

1. OEM standard production 3 or 4 speed permitted

2. Mus have 1 forward and 1 backward gear C. Bert or Brinn permitted

 

Body:

A. Ultimate, SAS, SESS, Fastrak, rules apply

 

Bumpers:

1. Must be track approved

2. No sharp or exploded edges C. Bracing permitted

 

Engine:

1. 362 cubic inches maximum

2. Flat top pistons

3. Any hydraulic or solid lift cam permitted, no roller cams

4. Lifter valley may be polished

5. Headers permitted, exhaust must exit parallel to ground

6. Any stock, steel, or cast crankshaft permitted, stock stroke for motor

7. Stock appearing rods permitted, no H-beam, or billet rods permitted 6.0" maximum

8. Any wet sump oil pan permitted, internal pump only

9. Engine may be balanced, crankshaft must appear stock except for drilling or welding for balancing

10. No ground or knife-edge counter weights permitted

11. Sealed crate 602 allowed

 

Engine Placement:

C. Engine and drive line must be in center of car, half the distance of the ball joints

 

Flywheel and clutch:

A. Z-28 flywheel permitted B. Little Clutch permitted

 

Ignition:

1. Factory electronic or HEI. MSD OK

 

Racing

1. Coil permitted

2. Add-on boxes and rev-limiters legal

 

Wheels:

1. Bead lock permitted

2. 14 inch wheel maximum

3. Steel and aluminum wheel allowed

 

Tires:

1. Hoosier 1350 spec or economy/ American Racer spec 48/48 open/ Hoosier

FT 200. Grooving allowed no siping. No softening

1. Optional — 1600 spec/1600 economy/ American racer spec 48/48 open/ Hoosier FT 400 on the right rear

 

Weight:

A. 2600 lbs.

 

Numbers:

1. Must be 18" high and on each door

2. Must be visible and legible from scoring tower    

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                                                             2020 Monster Mini Stock Association

General:

The Monster Mini Series Association (MMSA) strives for the best 4cylinder competition around, hands down. We welcome each and every one to the 2019 Racing Season. The following rules are set for 2019 Racing Season. Good luck to every team.

The rules and regulations set forth herein are designed to provide for the orderly conduct of racing events and to establish minimum acceptable requirements for such events. These rules shall govem the condition of all events sponsored and conducted by MMSA; however there are certain rules and regulations that are set forth by each track that will have to be adhered to such as window nets, gloves anything of this nature. No express or implied warranty of safety shall result from publication of or compliance with these rules or regulations. They are intended as a guide for the conduct of the sport for each competitor and spectator.

 

Conduct / Penalties:

There should be respect and compassion for every race team, track promoter, track official and MMSA official. We must all carry ourselves in a professional manner at any event. MMS-4 wants everyone to experience a great time with hard, CLEAN racing for these big purse races. Keep in mind, if we go to these tracks and do not conduct ourselves in a civil manner (arguing, fighting, etc.) these tracks will not have us back. Put on a good show, take your cars home in one piece and be ready for our next event. Along with clean racing this applies to the crew as well. Drivers are responsible for each and every crewmember on their team. If your team is aggressive or initiates a fight with another MMSA race team, the DRIVER of the aggressor's team will be penalized. Remember: The DRIVER is responsible for EVERY crewmember.

Punishable Offenses:

• Hitting another car under caution or after the race has been completed

• Exiting your car in an aggressive manner and approaching a competitor (this includes the pit area).

• A crewmember engaging another driver/crew in an aggressive manner (this includes texting, social media, etc.).

• Cursing track or MMSA offcials.

• Failure to comply with policy with a seasonal ban could result in a lifetime ban.

Any act that MMSA deems as intentional could result in following penalties.

First Offense:

Two-race suspension; points and monies forfeited for that night and possible fines before reinstatement.

Second Offense:

Banned for the remainder of the MMSA season; monies for that night and points for the ENTIRE season forfeited and possible fines before reinstatement. Third Offense:

LIFETIME ban from ALL MMSA events

 

MMSA Protest Procedures:

A protest fee and written request must be made to the MMSA Technical

Inspector within 5 minutes of the end of the main event (Checkered Flag).

1. In order to protest a car you must finish behind that car or you have the option to protest each car that finishes ahead you. If it is a multi car you must protest each car on the same items.

2. 2 items $300 with a $100 acceptance fee with MMSWTRACK retaining $100

3. Bottom End $400 check for stock crankshaft and steel connecting rods with a $100 acceptance fee with MMSWTRACK retaining $ 100

4. Complete Engine $800 this will consist of camshaft, head, intake/ spacer, carburetor, cc's, crankshaft and steel connecting rods with a $200 acceptance fee with MMSA/TRACK retaining $200

5. Bumper To Bumper $1,100 this will consist of complete engine, flywheel assembly, transmission, rear end, suspension and checking for traction control with a $250 acceptance fee. With MMSA/TRACK retaining $250

6. Fuel Trackside $50 can be protested as a single item or used as a third item only in another protest. On multi-car protest, ifprotesting fuel only, any car finishing ahead of that car can be protested on Fuel Only. No acceptance fee $50 retained by MMSA/TRACK.

7. Fuel Lab Test $150 will be sent to an independent lab and compared to VP samples with a $150 acceptance fee. Can be protested as a single item or used as a third item only in another protest. On multicar protest, if protesting fuel only, any car finishing ahead of that car can be protested on Fuel Only.

8. Tire Benchmark Protest S 125 per tire with $125 acceptance fee. 3 stripes from specified tire the protester wants checked will be sent to an independent lab for testing. This can be protested after qualifying or main event. Tire sample MUST make benchmark provided by Hoosier to the lab. If protesting tire only, any car finishing ahead of that car can be protested on tire's only.

9. Tire Chemical Scan Protest $300 per tire with $300 acceptance fee. 3 stripes from specified tire the protester wants checked will be sent to an independent lab for testing. This can be protested after qualifying or main event. Tire sample MUST match sample provided by Hoosier to the lab. If protesting tire only, any car finishing ahead of that car can be protested on tire's only.

10. Visual protest is $50 retained by the MMSA/ TRACK TECH must be made within 30 minutes before qualifying, heat race or main event. This includes Bodies

11. If protested you have the right to back protest. Protested car has 5

minutes to decide if they want to back protest. After all protest has been filed parts must be ready for inspection within half (1/2) hour. (Tech man discretion)

1. Once a protest has been filed it will be final. There will be no dropping protest.

M)Anything found illegal may be confiscated by the MMSA and fines will be induced before the next MMSA sanctioned event.

 

Pre-Race Inspection:

All cars must go through pre-race inspection. At this point a MMSA official has the right to check the following: carburetor, suspension, body or chassis. Driver/ Crew is responsible for informing MMSA / Track Tech of any penalties or weight breaks. All heat shields are to be removed at this time. If found not to meet MMSA rules you could be subject to change the pan or add weight at this time. Pre-Race inspection ends when the drivers' meeting starts, you must be in line. If you do not go through pre-race inspection you will be penalized and first out for qualifying or starting last in the last heat race.

 

Post-Race Inspection:

The top 5 cars in the feature are to cross the scales with the top 3 proceeding to the tech area.

 

RACE PROCEEDURE:

Sign in: Must have someone to pay entry fee in person in order to be put on the list.

RACE: On any start or restart, anyone jumping out of line or firing before the green is out will be warned ONE time. Do it a second time you will be put back ONE ROW. Third time you go to the TAIL OF THE FIELD. In the event of a caution with 5 laps or less, the restart will be single file. A lap is complete when the leader plus 4 cross the line (Top 5).

Any infraction of the rules that are not listed will be dealt with at time of infraction and penalties imposed up to suspension from the series depending on the nature of the infraction. MMSA HAS FINAL SA Y!

 

Safety:

All cars must have a roll cage that has been approved by the

MMSA/TRACK. All drivers MUST wear a full fire suit (jacket and pants). Gloves, racing shoes and window nets are recommended. All cars MUST have a working Fire extinguisher within the reach of the driver. Driver is not to exit car unless it is on fire or upside down. If driver exit's car for any other reason is subject to be disqualified. NO TWO WAY RADIO'S, Raceceiver only, mirror's OK. It is also recommended to have a full containment seat or head / neck restraint device. You will be given a 251b weight penalty for not having a full containment seat or neck restraint (this is for 1 NOT each). All added weight MUST be secured by h" bolt and painted white with car # on it.

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FUEL:

The official Fuel of the MMSA is VP Racing Fuel:

VP        or VP 114

Fuel is to be NON OXYGENATED

Buying fuel from the track is allowed but MUST inform Tech that fuel was purchased from track if fuel is checked.

It is highly recommended to purchase fuel from the series by the drum or gallon from the series trailer.

 

Body:

1. Any two or four door foreign or domestic car with a 94-101.5 wheelbase. Wheelbase must match make and model of car.

2. Must have correct CC's listed on hood with penalties and weight breaks added for scales. If not listed correctly you could be disqualified.

3. May have a complete aluminum body but must retain stock shape and appearance.(See Body Measurements) D) Inner panels may be removed. E) NO FWD or MID Engine cars

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

2. Must have a rear firewall or drivers compartment must be boxed in

3. After market nose piece OK. No wider than I inch outside of tires.

Front fenders must be made of steel or aluminum .(NO MD 3 STYLE

NOSES ALLOWED WITH MOLDED FENDERS, ELEPHANT

EAR OR WING) ( NO PLASTIC FENDERS )

1. May run a 6 inch rear spoiler— can't go over side of quarter panel — no wider than the width of the car — spill plates OK spill plate measurements bottom is 16 inches rear 8 inches high 4 inches across the top rear and 4 inches high in the front. (see body measurements)

2. Interior spoiler no more than 4 inches high and NO higher than dash.

3. 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 900 angle NO SHARP CORNERS / EDGES) L) Nose 70-inch maximum width. M) 68-inch maximum width at ANY point.

1. 38-inch maximum ground to deck (bottom of spoiler).

2. Optional: Rear of car can remain open. Aluminum ok to close rear of car.

3. May use lexan in rear windows. Q) Must run hood.

1. Breather may stick through hood.

2. NO Cold Air boxes allowed

3. May have heat shield under hood, over the header only no longer than length of cylinder head. NO COMPLETE HOOD UNDER HOOD. U) May have hole in firewall big enough for the header to pass through (tech discretion if hole is to big).

V) May replace top 1/4 of firewall with steel or aluminum (this doesn't mean the whole firewall) no lower than original master cylinder hole in firewall. No holes above or below the deck.

Oan 34 J I I

** Acceptable body infractions will result up to a 501b weight penalty in the area of the infraction* *

** All body infractions are not acceptable tech man discretion* *

 

Chassis / Suspension:

1. Must have a roll cage and all safety equipment.

2. All chassis /suspension components must be either OEM or OEM replacement and to be UNALTERED unless specified throughout  the following rules.

3. Roll cage must be secured to the unibody.

4. NO Tube Chassis Allowed.

5. May tie chassis together by splitting floor pan and put square tubing in from the top and may stick through floor pan BUT NOT totally undemeath. NO "X" Bracing Under Floor Pan.

6. Square / roll cage tubing from strut towers forward is acceptable. G) May use square tubing or roll cage material from back of shock mounts to rear of car must be straight no angling of material.

1. All A frame, trailing arm's and leaf spring mounts must be stock and mounted in STOCK location (may cut lower A frame for caster / camber adjustments)

2. May take spindle that came on car and machine to fit a later model strut. All machining and or shims must be parallel. No angle milling/ grinding to enhance performance.

3. May cut Top trailing arm (s) or re drill for pinion angle only.

4. May have spring locator/ bucket on lower control arm to keep spring in location. L) Lowering blocks ok

M)Leaf spring cars may lengthen rear shackle.

1. Caster / Camber plates ok

2. Adjustable buckets or Jacking Bolts are ok, but MUST remain in STOCK location (Buckets or Jack Bolts may be raised for spring travel). If not in STOCK location you may be subject to a weight penalty. Buckets or Jack Bolt Must Be In Fixed Location. (Tech's

Discretion) (May select a random car to measure by for comparison) P) Ford may run coil over on front struts.

1. May cut upper or lower control arm for caster / camber.

2. May cut pan hard bar must be NON ADJUSTABLE. Must be located in STOCK location.

3. Mono Balls Allowed

4. Stock Mounted body shocks may have heims (bottom only) shocks may be adjustable (dampening) NO CANISTER STYLE SHOCKS ALLOWED

5. May adjust shocks for travel but not change the angle of the shock

(not mounted to roll cage)(No adjustable bracket)

1. Offset in steering rack ok

W)Bump steer Not Allowed (NO heims or shims/ spacers to level tie rod ends)

1. ** If any suspension component not in STOCK location you will be subject to a weight penalty.

2. ** $100 buy rule per shock ** This is for shock only!

3. ** $200 buy rule per strut ** This is for strut only NO SPRING!

 

Brake System:

1. 4 wheel disk brakes permitted must have OEM components

2. Dual master cylinder permitted. C) 3 wheel brake shut off permitted

3. No adjuster for brakes from front to rear in reach of driver.

4. Stock rotors and drums No lightening but may remove caliper and rotor on RF Only (Ford on a Ford Toyota on a Toyota).

 

Wheels & Tires:

1. Wheels Steel 8" maximum width. Bead locks ok (bead lock must face outward).

2. May have bead locks on all 4 wheels.

3. AMERICAN RACER  is the Track  Tire!! Hoosier 400's only (NO GROOVING or SIPPING) D) No chemicals allowed (see protest)HOOSIER IS FOR SERIES RACES ONLY!!!!

4. Must meet Hoosier benchmark at an independent lab.

5. Needling allowed

 

Rear ends:

1. Any stock up to 8.8 for make of car.

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

3. Axle- Stock OEM or an OEM replacement permitted (may weigh to compare if necessary) D) No full spools

4. Mini spool OK steel only.

5. May lock rear end by weld, mini spool, limited slip (limited slip unit must be stock NO aftermarket units).

6. NO RATCHET SPOOL ALLOWED!

7. May run cut gear.

** ENGINE: ALL Engine core Parts (ex: Block, Head, Crankshaft and Intake) Must Have Been

Available on Cars or Trucks Sold to the General Public by Mass Production. All Parts Must Be

OEM of the Same Brand Vehicle You Are Racing.

ALL PARTS MUST HAVE COME ON VEHICLES FROM THE UNITED STATES OF AMERICA. NO FRONT WHEEL DRIVE, MARINE, INDUSTRIAL OR SPECIAL PRODUCTION PARTS

 

Engine option #1 S.C. Stock 4 type weight / 1b 20001b Minimum. See CC's weight:

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 overhead cam engines permitted

5. Cannot mix and match different cc engines to come up with odd ball cc's must stay basic bore and stroke combo's that was produced by the manufacture.

6. OEM blocks only .080 over bore max (other than listed). 5cc for wear not to exceed 2500cc + .08 over bore. Toyota 3tc may bore to .120 over

7. Ford may Sleeve a 2300cc block to a 2000cc.

8. Aluminum cam gear or pulley allowed.

9. Any steel connecting rod- no aluminum, titanium or carbon fiber J) NO titanium wrist pins.

1. Only Babbitt style bearings Allowed (No roller bearings) coated ok.

2. Stock crank with stock stroke ± .01 tolerances.

M)Crankshaft rod journals maybe ground no smaller than 1.771

1. NO AFTERMARKET CRANKS. (Stock lightened crank must add 501bs in front of firewall)

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

3. Racing oil pans permitted.

4. NO dry sumps allowed.

5. Any flat top piston — Toyota 1600 and 1800 may run dome of .235 tall only.

6. Formula for cc's- bore X bore X .7854 X stroke X 4 = cid then divide cid into .061= cc's. Tolerance is 5cc for wear. T) May have E-Vac to header only NO VACCUM PUMPS.

1. May run electric water pump.

2. May run electric fuel pump.

W)lgnition — stock or Mel's Ignition ONLY (NO BOOSTERS on

Ignition). (No Traction control allowed)(NO ECU Units) (NO MSD Style)(NO MSD Style Ignition Boxes) X) Single Ignition coil Only.

Y) Radiator must be mounted in front of engine.

 

Heads:

1. MUST HAVE BEEN AVAILABLE ON PRODUCTION CARS/ TRUCKS FROM OEM AUTOMOTIVE FACTORY. FROM THE UNITED STATES OF AMERICA.

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 tolerances.

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

12. NO "MB" head allowed

 

Intake:

1. MUST HAVE BEEN AVAILABLE ON PRODUCTION CARS/ TRUCKS FROM OEM AUTOMOTIVE FACTORY. FROM THE UNIED STATES OF AMERICA.

2. OEM may change from one size engine to another without modification unless stated.

3. Ford must run D4, D9 or El style intake. Anything other than listed must be approved by MMSA/ Track Tech. D) No fuel injection manifolds E) Must be single carburetor.

1. No side draft intakes.

2. OEM style gasket only. (.07 max thickness)

3. May modify for carburetor but must be approved before race by MMSA tech. 1) May bore straight down for clearance - NO TAPERING, RADIUS or BLENDING.

J) Intake gasket is part of intake protest.

 

Carburetor:

A) Stock carburetor or Holley 350 cfm (#7448 or 0-80787-1) or Holley 500 cfm #4412 must pass no go gauges. B) Must have air horn with number.

1. Float bowl must face forward

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

3. No thinning of shafts

4. No polishing or grinding

5. Spacer and adapter — any 1" max thickness together — NO TOLERANCE. Spacer cannot protrude into intake. H) 2 gaskets @ .07 thickness maximum each Camshaft:

 

CAMSHAFT

1. Solid or Hydraulic NO ROLLERS

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

3. Hydraulic ANY LIFT

4. Hydraulic lifter must collapse or be taken apart for inspection

5. No swapping of any lobes — must be in stock order

6. No roller or needle bearings stock type only coated oK

7. ​

8. Flywheel & Clutch Assembly:

9. Aftermarket flywheel and clutch 0K ( NO COUPLERS )

10. Stock 111bs minimum flywheel will receive 301bs weight break (must be stock lightened flywheel )

11. Must have stock or stock replacement clutch and pressure plate if claiming stock flywheel.

12. NO LIGHTENING OF STOCK PRESSURE PLATE

13. 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 the way around pressure plate it WILL be considered lightening.

14. Studs for pressure plate ok (must be a purchased stud, no custom machined studs allowed)

15. Cannot relocate pressure plate bolt hole pattern

 

Transmission:

A) MUST BE STOCK with all working forward and reverse gears. B) Cannot remove or lighten drive or reverse gears.

1. May remove speedometer gears only.

2. NO LIGHTENING OR POLISHING ALLOWED

 

Driveshaft:

1. Minimum of I h" diameter

2. Must be steel

3. Must have a safety loop

4. Must be painted white with number on it.

 

Header:

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

2. Spec Schoenfeld Toyota may run # t-168 or stock manifold

3. These headers are the only ones allowed with SC type stock 4 rules.

4. May be coated or wrapped only must remain as it came from

Schoenfeld. (If wrapped you may be subject to unwrap for inspection) E) Nothing should protrude into collector if so it WILL be subject to a Disqualification.

1. OEM style gasket only factory replacement or from Schoenfeld.

2. If Schoenfeld doesn't offer a header then a Stock Manifold MUST be used. No homemade headers.

 

CC Weight's, Weight Break's and Penalties:

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

2. Ford 2.0 must weigh 2150 lbs. minimum

3. Any other than listed must weigh 11b per cc

4. For not having a HANS / Full Containment Seat +251bs (l or the other not for both).

5. Stock 111bs minimum Flywheel -301bs

6. Lightened Crankshaft +501bs (in front of firewall)

7. —11b per lap burn off (main event only) MMSA sanctioned race.

8. 51b tolerance at scales.

9. CC's and all weight breaks / penalties, and weight TOTAL MUST be listed on each side of front fenders or hood. All breaks and penalties should be told to MMSA tech at pre-race inspection for documentation. If not listed or documented MMSA has the right to DQ after qualifying or main feature. 

 

SCALES:

MMSA will go by the scales that each track provides for everyone. It is the responsibility of each track to provide scales and we have to use what is provided.

 

BODY MEASUREMENTS:  ( SEE MMSA WEBSITE FOR PIC OF BODY WITH DIMENSIONS)

 

FRONT VIDTH 70' MAX.

 

 

ROOF VIDTH 42'MIN

(NO ELEPHANT EARS)

SPILL

PLATE

ROOF LENGTH 48'MIN

REAR VIDTH 68' MAX.

 

 

MMSA 2019 BODY DIMENSIONS

4•

 

 

25'

REAR SPOILER 6' MAX

High

38' Max

**If You Are Caught Cheating For A Major Violation such as porting, light crank not claimed, stroked crankshaft, NOS, anything listed NOT Allowed, or something without a doubt you knew was cheating you will be stripped of all points, winnings and banned for 365 days or fined SS. Minor Offense you will forfeit all points and winnings for that night and possible race suspension & fines (MMSA discretion).**

 

IF IT DOES NOT SAY YOU CAN'T DO IT, IT DOES NOT MEAN YOU CAN. ASK TECH. TECH MAN HAS THE FINAL SAY.

ANY QUESTIONS PLEASE CONTACT:

 

MMSÄ Owner:

Scott Morgan: 864-376-0323

Email: smorgan@encoretg.com 

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