CHANGES FOR 2010
ARE INDICATED IN RED.
DRIVER ELIGIBILITY:
OPEN TO ALL DRIVERS
BODY:
GENERAL: THOMPSON MODIFIEDS ARE A SPEC TYPE DIVISION. SPEC PARTS
ARE THE ONLY PARTS THAT ARE ALLOWED TO BE USED AND ALSO MAY BE PURCHASED
THROUGH LOCAL VENDERS & PART STORES. ABSOLUTELY NO MODIFICATIONS TO ANY
PART OF THE CAR UNLESS LISTED IN THESE RULES. ALL PARTS MUST BE USED AS
PURCHASED. NO LIGHTENING OR MODIFCATIONS TO ANY PARTS. ALL PARTS MUST BE
MAGNETIC STEEL UNLESS SPECIFIED IN THE RULES. BODY MUST BE AN IMCA TYPE
ALLUMINUM OR STEEL MODIFIED BODY. NO DIRT OR OUTLAW TYPE BODIES. BODY PANELS
MAY BE PURCHASED OR FABRICATED. ROOF MUST USE FIBERGLASS SPEC ROOF PART#
910-54105. HOOD MAY BE FIBERGLASS. ENGINE COMPARTMENT MUST REMAIN OPEN. NOSE PIECE MAY NOT EXTEND BEYOND THE FRONT
BUMPER. A-PILLAR & C-PILLAR (SAIL PANEL) MUST BE WITHIN ONE INCH (EQUALLY)
OF THE QUARTER/DOOR PANELS. SAIL PANEL MAY NOT ATTACH TO SPOILER. TAIL/FILLER
PANEL MUST EXTEND DOWN TO BUMPER BRACKETS.
BODIES MUST BE KEPT NEAT & PRESENTABLE. NO BELLY PANS, NO WINGS OF
ANY TYPE. FRONT BUMPERS MAY NOT BE LEANED BACK. FRONT & REAR BUMPER HEIGHT
MEASURED FROM CENTER OF BUMPER TO GROUND IS 18. SIDE & REAR NERF BARS
(MAXIMUM 1 Ό ROUND TUBING) MAY NOT EXCEED THE OUTSIDE BULGE OF THE TIRES.
ACCIDENT CARS WILL NOT BE ALLOWED
TO COMPETE WITHOUT NERF BARS OR BUMPERS.
FRONT OVERHANG: 36 ½ MEASURED FROM
THE CENTER OF THE SPINDLE TO FRONT OF BUMPER.
.
DOOR HEIGHT: TOP OF FRONT DOOR
MUST MEET(BE FLUSH WITH) DASH PANEL. DASH PANEL MUST BE 21 FROM TOP OF
CHASSIS.
MINIMUM ROOF
HEIGHT:
47 MEASURED 10 BACK FROM TOP OF THE WINDSHIELD. 48 MEASURED 6 FROM THE TOP
OF THE REAR WINDOW.
MINIMUM SIDE
WINDOW OPENING: 14 ½ MEASURED FROM DOOR TO ROOF OPENING. C-PILLAR / SAIL
PANEL MAY NOT EXTEND PAST THE MAIN ROLLBAR.
MAXIMUM DECK
LID HEIGHT: 35 MEASURED AT TOP OF REAR QUARTER.
REAR OVERHANG: 43 MEASURED FROM
CENTER OF REAR AXLE TO END OF BUMPER.
MAXIMUM REAR
SPOILER: 5 HEIGHT BY 60 LENGTH, MOUNTED AT REAR OF BODY.
MAXIMUM
SPOILER HEIGHT: 40 MEASURED FROM TOP OF SPOILER TO GROUND.
GLASS: HALF WINDSHIELD OR
MODIFIED CAPSULE POLYCARBONATE WINDSHIELD. NO SIDE OR BACK GLASS ALLOWED.
QUARTER GLASS ALLOWED. MAXIMUM 1 X 2 SCREEN MUST BE INSTALLED RIGHT OF THE
WINDSHIELD TO ROLLCAGE UPRIGHT.
BODY SPOILER: SIDE SKIRTS ALLOWED
FROM DOOR TO REAR WHEEL OPENING. MUST
FOLLOW CONTOUR OF BODY AND MAY NOT BE STEPPED OR ANGLED. SIDE SKIRTS ONLY MUST
MAINTAIN A 4 RIDE HEIGHT.
INTERIOR
SHEETMETAL: INTERIOR KIT(91054100). INTERIOR SHEET METAL MAY BE
FABRICATED PER THESE RULES. INTERIOR SHEET METAL MAY BE ALLUMINUM (.040) OR
STEEL (.031). MAGNETIC STEEL FLOOR PAN
ONLY (PART OF CHASSIS KIT). FULL DASH PANEL, MUST LAY FLAT BETWEEN BOTH
A-PILLARS & MUST MEET HOOD. DRIVERS
COMPARTMENT MAY SLOPE UPWARDS TOWARD & MUST MEET TOP OF RIGHT DOOR. REAR DECK
MUST EXTEND FROM TOP OF DOOR PANELS TO TOP OF QUARTER PANELS.
FRAME/CHASSIS:
108 GM METRIC CHASSIS &
ROLL CAGE, (916-73098), MAY BE PURCHASED FULLY ASSEMBLED OR FABRICATED TO SPEC
PART # 916-73098. CHASSIS & ROLLCAGE MUST REATAIN ALL SPECS AS PRODUCED.
BARS MAY BE ADDED FOR STRENGTH. FRONT SPRING POCKETS MAY BE TRIMMED FOR
CLEARENCE. SWAYBAR ANCHORING BOLTHOLES MAY BE DRILLED (SEE SWAYBAR RULE).
CENTER WINDSHIELD BAR & SHOULDER BAR REQUIRED, MINIMUM 1 ½ x .090 TUBING.
UPPER CONTROL ARM PERCH MUST REMAIN AS PURCHASED, MAY NOT BE LENGTHENED OR
ALTERED.
FRONT SNOUTS: TO BE AVAILABLE FROM SPEEDWAY MOTORS.
WHEELBASE: 110
BALLAST WEIGHT: ALL BALLAST WEIGHT
MUST BE MOUNTED BEHIND THE FRONT SPINDLES AND AHEAD OF THE REAR AXLES. BALLAST
WEIGHT MAY NOT EXCEED 3 OFF THE LEFT OUTSIDE FRAME OF THE CHASSIS. ALL OTHER
BALLAST WEIGHT MAY NOT EXCEED THE CHASSIS FRAMERAILS. ALL BALLAST WEIGHT MUST
MAINTAIN A MINIMUM 5 GROUND CLEARENCE. MUST
BE IN SOLID BLOCK FORM OF NO LESS THAN 5 LBS BLOCKS. ALL WEIGHTS MUST BE
SECURELY ATTACHED TO THE CAR WITH A MINIMUM OF TWO (2) 7/16 BOLTS. BALLAST
WEIGHT IS NOT ALLOWED IN THE DRIVERS COMPARTMENT. ALL WEIGHT MUST BE PAINTED
WHITE AND CLEARLY MARKED (TM-CAR#).
ANY CAR LOOSING BALLAST WEIGHT OR FOUND WITH UNMARKED WEIGHT IS SUBJECT TO A
FINE.
GROUND CLEARANCE: MINIMUM 5
CAR WEIGHT: JASPER ENGINES;
MINIMUM 2550
LBS., MAXIMUM LEFT SIDE PERCENTAGE 55.0%.
ZZ4
ENGINES; MINIMUM 2600 LBS., MAXIMUM LEFT SIDE PERCENTAGE 55.0%
SUSPENSION:
A-FRAMES: UPPER
CONTROL ARM; 10 Ό ADJUSTABLE (ALUMINUM OR STEEL ADJUSTING TUBES) WITH
ALUMINUM CROSS SHAFT (910-34355), REPAIR PARTS AVAILABLE. UPPER CONTROL ARM MAY
BE REINFORCED AT MOUNTING POINT. UPPER BALL JOINT (910-34323 / MOOG K772).
OPTIONAL UPPER CONTROL ARM; ONE PIECE 1 Ό OFFSET STEEL CONTROL ARM WITH NON-ADJUSTABLE
ALUMINUM OR STEEL CROSS SHAFT (6 CENTER TO CENTER BOLT ONLY). CONTROL ARM MUST
USE STOCK OEM BALL JOINT PART# K6024 (BOLT-ON TYPE) IN STOCK POSITION.
LOWER CONTROL ARM; OEM
NOVA (910-34300 L/R). LOWER A-FRAME BUSHINGS MAY BE REPLACED WITH STOCK TYPE
ALUMINUM, STEEL OR POLYURETHANE BUSHINGS, MOUNTING HOLE LOCATION MAY NOT BE
ALTERED. LOWER BALL JOINT (917-20036 / MOOG K727). STEEL BALL JOINT SLEEVE FOR
LOWER BALL JOINT (910-34816) MUST BE INSTALLED IN ORIGINAL POSITION ON THE
CONTROL ARM, BUT MAY BE ANGLED TO ACHIEVE PROPER BALL JOINT ANGLE TO SPINDLE.
AFTERMARKET LOWER CONTROL ARM PART# 910-34298 L/R-S IS THE ONLY APPROVED LOWER
CONTROL ARM FOR COMPETITION.
SWAYBAR: AFTERMARKET SWAYBAR
ALLOWED. MUST BE FASTENED TO ATLEAST 1 CONTROL ARM. NO SPLINED BARS. CHASSIS
MAY BE DRILLED TO ACCEPT SWAYBAR MOUNTING POINTS PER THESE GUILDLINES;
CENTERLINE OF LEFT SWAYBAR ANCHOR BOLT MUST BE LOCATED 15 ½ IN FRONT OF
CENTERLINE OF LEFT JACKING BOLT. CENTERLINE OF RIGHT SWAYBAR ANCHOR BOLT MUST
BE LOCATED 16 ½ IN FRONT OF CENTERLINE
OF RIGHT JACKING BOLT.
SPINDLE &
HUBS: 73-77
GM CAMARO SPINDLES ( 916-73088/9). FRONT SPINDLES MAY BE CHANGED TO A HEAVY
DUTY IMPALA SPINDLE & ROTOR. SPINDLE ENDS MAY BE REAMED TO ACHIEVE PROPER
BALL JOINT TAPER. STEERING ARMS MAY BE DRILLED TO ACCEPT 5/8 BOLT FOR OUTER
HEIM JOINT. STEERING ARM ALIGNMENT FOR BUMP STEER IS ALLOWED PROVIDING THE
STEERING ARM IS NOT CUT, WELDED, LEGTHENED OR SHORTENED. 73-77 11 GM CAMARO
ROTORS DRILLED TO 5 ON 5 WITH 5/8 STUDS
( 910-31064).
BRAKES: MUST BE OPERATIONAL
ON ALL 4 WHEELS AT ALL TIMES. VALVES OF ANY TYPE WILL NOT BE PERMITTED IN THE
BRAKE LINES THAT WILL REDUCE OR STOP THE FLOW OF BRAKE FLUID TO A SINGLE
WHEEL. DISC BRAKES FRONT AND REAR. STOCK
OEM CAMARO STEEL PIN TYPE SINGLE PISTON FRONT CALIPERS (910-31035L/R). STOCK OEM G-METRIC STEEL PIN TYPE SINGLE
PISTON REAR CALIPERS (910-31045L/R).
AFTERMARKET MASTER CYLINDER (S) AND PEDALS. HANGING PEDAL ASSEMBLIES
ONLY.
STEERING: STOCK OEM STEERING
BOX. OEM UNALTERED G-METRIC IDLER ARM (910-32210), PITMAN ARM CENTERLINK
(910-32211-C-78) & INNER TIE ROD ENDS (910-32217) MOUNTED IN STOCK
POSITION, CENETRLINK MAY BE REVERSED. STEEL HEIM JOINTS MAY BE USED AT THE
OUTER TIE ROD ENDS WITH 5/8 STEEL TUBES. IDLER ARM & STEERING BOX MUST
REMAIN IN STOCK OEM POSITION. BOLTHOLES MAY NOT BE ELONGATED. IDLER ARM &
PITMAN ARM ALIGNMENT IS ALLOWED FOR BUMP STEER PROVIDING ARM IS NOT CUT,
WELDED, LEGTHENED OR SHORTENED. STEERING QUICKENER (91032231) ALLOWED STEERING
SHAFT WITHOUT THE USE OF A STEERING QUICKENER MUST BE INSTALLED THAT UPON A
HEAVY FRONT END COLLISION THE SHAFT WILL DEFLECT TO THE SIDE. STEERING SHAFT
& U-JOINTS MUST BE MAGNETIC STEEL.
SPRINGS &
SHOCKS:
STOCK TYPE STEEL MINIMUM 5 OD SPRINGS. FRONT SPRINGS MUST MOUNT IN ORIGINAL
OEM LOCATION. REAR SPRINGS MUST BE
CENTERED OVER THE REAR END. SPRING MOUNTING POINTS ARE A SPEC LOCATION. PRO SHOCKS WB SERIES ARE THE ONLY SHOCKS
ALLOWED. THE FOLLOWING PART # ARE THE ONLY SHOCK PERMITTED; WB735, WB74, WB746,
WB75, WB753, WB76, WB763, WB77, WB78, WB791, WB935, WB93, WB94, WB946, WB95,
WB953, WB96 & WB77. SHOCKS MUST BE MOUNTED TO SPEC MOUNTING LOCATIONS.
SHOCK CLAIMER RULE: TOP FIVE
CARS IN TECH ONLY. YOU MAY CLAIM THE 4 SHOCKS THE CAR THAT FINISHED DIRECTLY IN
FRONT OF YOU. CLAIMER FEE IS $300.00
& YOUR SHOCKS. TECH OFFICIALS WILL
VERIFY PART NUMBERS.
REAR
SUSPENSION: 3 LINK ONLY. BRACKET POSITIONS ARE AS MANUFACTURED ON
CHASSIS. ALLUMINUM OR STEEL TRAILING
ARMS MUST USE Ύ STEEL HEIM JOINTS. MAXIMUM LENGTH OF ARM MEASURED FROM CENTER
TO CENTER OF MOUNTING HOLES, NOT TO EXCEED 20 1/4. THE UPPER LINK, ALLUMINUM OR STEEL TUBE WITH
Ύ STEEL HEIM JOINTS, LENGTH OF THIRD LINK IS 25 Ό MEASURED CENTER TO CENTER
OF MOUNTING HOLES.
PANHARD BAR: ONE SINGLE ALLUMINUM
OR STEEL PANHARD BAR. WITH Ύ STEEL HEIM JOINTS. MUST BE MOUNTED BEHIND THE
REAR AXLE ASSEMBLY.
WHEELS: 8 STEEL, MINIMUM 19 LBS RACING WHEELS WITH REINFORCED
CENTERS ARE MANDATORY. ALL FOUR WHEELS MUST HAVE 2 BACKSPACE. WHEEL OFFSET IS
MEASURED OFF THE INSIDE BEAD SEAT TO THE INSIDE MOUNTING FLANGE OF THE WHEEL.
WHEEL SPACERS: ½ WHEEL SPACER FOR
REAR WHEELS ONLY. ONE (1) SPACER PER SIDE.
VALVE STEMS: NO BLEED OFF TYPE
VALVE STEMS
TREADWIDTH: MAXIMUM FRONT &
REAR 76 ½.
TIRES: TRACK TIRE RULE WILL
BE IN EFFECT-ALSO SEE GENERAL RULES. AMERICAN RACER 8 SLICK. LEFT SIDE TIRE IS
EC-84, 27.0/8.0 X 15 OR 26.5/8.0 X 15S. RIGHT SIDE TIRE IS EC-85, 27.0/8.0 X
15. TIRES MUST BE PURCHASED THROUGH TRACK VENDER. THE USE OF TIRE
SOFTNER/CHEMICALS OF ANY TYPE IS NOT ALLOWED. NO LUBRICANTS OR DRESSINGS OF ANY
TYPE MAY BE APPLIED TO THE SIDEWALLS OF THE TIRES.
TIRE INVENTORY PROGRAM:
THE TIRE INVENTORY WILL BE IN EFFECT
THROUGHOUT THE POINTS SEASON STARTING AT THE ICEBREAKER EVENT AND ENDING ON THE
FINAL THURSDAY NIGHT THUNDER EVENT.
1) TIRE BANK:
EACH DRIVER WILL HAVE A TIRE BANK
CONSISTING OF ALL TIRES PURCHASED FOR THEIR INVENTORY THROUGHOUT THE SEASON.
THE TIRE BANK WILL HAVE NO MAXIMUM LIMIT, HOWEVER DRIVERS WILL BE LIMITED ON
THE NUMBER OF TIRES THEY CAN ADD IN ON A WEEKLY BASIS. ONCE A TIRE IS PLACED
INTO A DRIVERS INVENTORY IT IS PERMENTLY IN THEIR INVENTORY. TIRES ARE ALWAYS
RECORDED TO THE REGISTERED DRIVER, NOT THE CAR!
2) NEW TIRE SCHEDULE:
A) STARTING
AT THE ICEBREAKER, DRIVERS WILL BE ELIGIBLE TO PURCHASE UP TO EIGHT (8) TIRES
FOR ICEBREAKER WEEKEND AND THE FIRST THURSDAY NIGHT THOMPSON THUNDER OF
THE SEASON. DRIVERS MUST START AND FINISH BOTH ICEBREAKER AND THE FIRST TNTT
HEATS AND FEATURES ON THEIR 8 INVENTORY TIRES. ALL SPARE TIRES MUST BE FROM
YOUR 8 INVENTORY TIRES. PRACTICE TIRES DO NOT HAVE TO BE FROM INVENTORY.
B) STARTING
ON THE SECOND "THURSDAY NIGHT THUNDER" AND CONTINUING THROUGHOUT THE
SEASON, DRIVERS WILL BE ELIGIBLE TO PURCHASE TWO (2) NEW TIRES TO ADD TO THEIR
INVENTORY EVERY WEEK. DRIVERS MUST START AND FINISH BOTH THE HEAT AND FEATURE
ON INVENTORY TIRES. IN THE EVENT OF A PUNCTURE ALL SPARE TIRES MUST BE FROM
WITHIN THE DRIVERS INVENTORY.
3) RECORDING PROCEDURE:
NEW FOR 2010! DRIVERS ARE
RESPONSIBLE TO BRING ALL NEW INVENTORY TIRES TO THE SCALES/TECH AREA FOR PROPER
RECORDING AND STENCILING. SCALES/TECH AREA IS LOCATED NEXT TO THE TIRE &
FUEL STATIONS. ALL NEW INVENTORY TIRES MUST BE NEW STICKER TIRES AND RECORDED
INTO INVENTORY PRIOR TO BEING USED/PRACTICED. SCUFFS OR USED TIRES WILL BE
REJECTED! IT IS THE RESPONSIBILITY OF THE DRIVER/OWNER TO MAKE SURE THE TIRES
ARE BROUGHT TO THE INVENTORY STATION FOR RECORDING PRIOR TO THE START OF THE
DRIVERS MEETING.
4) SPECIAL EVENTS:
ADDITIONAL TIRE PURCHASES MAY BE
ADJUSTED FOR EXTRA DISTANCE RACES INCLUDING DOUBLE FEATURES BY RACE OFFICIALS.
COMPETITORS WILL BE ADVISED OF ANY CHANGES.
5) NEW TIRE ELIGIBILITY:
DRIVERS MUST START THE FEATURE TO BE
ELIGIBLE TO PURCHASE TIRES THE FOLLOWING WEEK. IF A DRIVER ELECTS NOT TO
PURCHASE TIRES, THEY WILL FORFEIT TIRES FOR THAT WEEK AND WILL NOT BE ABLE TO
PURCHASE MORE THAN THE WEEKLY LIMIT THE FOLLOWING WEEK. NEW TIRES PURCHASED DO
NOT HAVE TO BE USED THE SAME WEEK THEY ARE PURCHASED. HOWEVER THEY MUST STILL
BE INVENTORIED TO BE INCLUDED IN YOUR BANK. ANY TEAM THAT BEGINS RACING AFTER
THE ICEBREAKER, WILL ONLY BE ELIGIBLE TO PURCHASE SIX (6) TIRES THEIR FIRST
WEEK AND TWO (2) TIRES EACH WEEK AFTER.
6) RUNNING INVENTORY TIRES / PENALTIES:
DRIVERS ARE RESPONSIBLE TO HAVE
INVENTORY TIRES ON THEIR CAR AT ALL TIMES DURING HEAT AND FEATURE EVENTS.
PRACTICE TIRES DO NOT HAVE TO BE FROM WITHIN YOUR INVENTORY. TIRE SERIAL
NUMBERS MUST MATCH WHAT WAS RECORDED FOR THAT DRIVER. ANY DRIVER CAUGHT WITH TIRES
NOT FOUND IN THEIR INVENTORY OR TIRES THAT HAVE BEEN TAMPERED WITH IN ANY WAY
INCLUDING UN-READABLE AND NON-TRACEABLE TIRES WILL BE DEEMED ILLEGAL. THIS WILL
RESULT IN DISQUALIFICATION FROM THE RACE EVENT (INCLUDES HEAT RACES AND FEATURE
EVENTS). IN ADDITION THE DRIVER WILL BE INELIGIBLE TO ADD ANY TIRES TO HIS
INVENTORY FOR THE FOLLOWING INVENTORY EVENT. ALL ILLEGAL OR UN READABLE TIRES
WILL BE CONFISCATED.
7) CUT, DAMAGED, MISSING, TAKE-OFF TIRES:
DRIVERS WITH CUT, DAMAGED, OR
MISSING TIRES WILL NOT RECEIVE CREDITS FOR NEW REPLACEMENT TIRES. DRIVERS WILL
BE RESPONSIBLE TO USE TIRES WITHIN THEIR INVENTORY AS REPLACEMENTS. ONLY NEW
TIRES ADDED THE SAME DAY MAY BE REPLACED PRIOR TO THE HEATS DUE TO A
CUT/PUNCTURE PER TECH OFFICIAL APPROVAL.
DRIVERS MAY ELECT TO GIVE ONCE REGISTERED TIRES TO OTHER
TEAMS. HOWEVER THE RECEIVING TEAM MAY NOT BE IN THE TOP 10 IN POINTS. THE TIRES
MUST BE USED AND MAY NOT BE NEW OR SCUFFED CONDITION. TIRES CAN ONLY BE
TRANSFERRED ONCE AND REQUIRE PROPER NOTIFICATION FROM BOTH TEAMS TO THE TIRE
OFFICIAL FOR APPROVAL PRIOR TO BEING TRANSFERRED.
ENGINE:
GENERAL SPECS: JASPER ENGINES COMPETING IN 2009 WILL BE
ELLIGIBLE FOR COMPETITION IN 2010.
JASPER ENGINES; SEALED 355 CID LEVEL
2 JASPER RACING ENGINE WITH 2101 EDELBROCK INTAKE, HEI DISTRIBUTOR & CAST
IRON WATERPUMP. ALL ENGINES WILL BE
RECORDED FOR SERIAL # & CHECKED FOR PROPER SEALS PRIOR TO PICK-UP. ENGINE REBUILDS WILL BE THROUGH TRACK AUTHORIZED SERVICE CENTER.
PARTS PACKAGE INCLUDES; HOLLEY
600 CFM CARBURETOR, CARBURETOR PLATE, TIMING COVER KIT, DAMPER, ROCKER STUDS,
WASHERS, DISTRIBUTOR VACUUM ELIMINATOR, OIL FILTER ADAPTOR, FUEL PUMP ROD, FUEL
PUMP PLATE, SPARK PLUG WIRES, FUEL PUMP, FUEL LINE CARBURETOR, FUEL LINE
CARBURETOR TO FUEL PUMP, OIL PAN GASKET, OIL FILTER & OIL. ENGINE WILL BE
SEALED PRIOR TO PICK-UP.
TIS MODIFIEDS
AUTHORIZED SERVICE CENTER;
NATS RACING ENGINES, 702 WARREN AVE, SWANSEA, MA
02777, PHONE 508-336-4142
NAT CHIVIATONE IS ALSO
AVAILABLE AT THE TRACK FOR ANY TECHNICAL ASSISTANCE THAT MAY BE NEEDED BY THE
RACER.
ANY SEALS THAT HAVE BEEN
REMOVED OR APPEAR TO HAVE BEEN TAMPERED WITH WILL DEEM THE ENGINE ILLEGAL &
MUST BE OVERHAULED TO ORIGINAL SPECS AT THE RACERS EXPENSE. SEALS MAY ONLY BE
REMOVED BY A TRACK OFFICIAL OR THE SERVICE CENTER. RACERS PARTICIPATING IN THE
TIS MODIFIEDS UNDERSTAND THAT THE ENGINE MUST BE RUN AS PURCHASED AND ONLY THE
AUTHORIZED SERVICE CENTER IS ALLOWED TO PERFORM ANY REPAIRS THAT MAY BE NEEDED.
ABSOLUTLEY NO MODIFICATIONS OR CHANGES ALLOWED TO THE ENGINE OR CARBURETOR. NO
EXCEPTIONS!
THOMPSON SPEEDWAY RESERVES THE
RIGHT TO CONFISCATE ANY ENGINE FOR TESTING, SUPPLYING THE COMPETITOR WITH A
MOTOR, IF AVAILABLE, UNTIL TESTING IS COMPLETE. ANY ENGINE FOUND TO BE
ALTERED/TAMPERED WITH, WILL RESULT IN LOSS OF ENGINE & ALL EARNED POINTS.
LOCATION: SPEC LOCATION IN
CHASSIS USING STEEL MOUNTS AND A 5/8 OFFSET ENGINE PLATE (917-11666). A
MEASUREMENT OF 72 ½ IS REQURED FROM THE BACKSIDE OF THE ENGINE PLATE TO THE
CENTERLINE OF THE REAR AXLE ASSEMBLY.
ENGINE MUST BE LEVEL AS MEASURED FROM SIDE TO SIDE AND FRONT TO REAR.
MINIMUM CRANKSHAFT HEIGHT IS 12.
CARB SPACER: JASPER ENGINES; ONE SOLID MATERIAL SPACER, MAXIMUM HEIGHT OF 1 PERMITTED.
NO WEDGE SHAPE SPACERS ALLOWED. BOTH THE TOP AND BOTTOM SURFACES MUST BE
PARALLEL. PORTHOLE (S) MUST BE VERTICAL TO THE TOP AND BOTTOM. NO BEVELING,
TAPERING, FLARING OR RADIUSING OF PORTHOLE (S). SPACER MAY NOT BE STEPPED OR
UNDERCUT. NO ADDITIONAL OPENINGS FOR THE INDUCTION OF AIR ALLOWED. ONLY ONE
.075 MAX GASKET PER SIDE OF SPACER ALLOWED.
ZZ4 ENGINES; UNALTERED MOROSO PART# 64940 (INCLUDED IN ENGINE PACKAGE).
CARBURETOR: ALL CARBURETORS MUST
PASS TRACK SUPPLIED GAUGES.
JASPER ENGINES; THE HOLLEY R4412 IS THE ONLY CARBURETOR ALLOWED. THE
CARBURETOR MUST BE STOCK OUT OF THE BOX.
THE ONLY CHANGES THAT WILL BE ALLOWED ARE AS FOLLOWS; THE CHOKE PLATE
AND SHAFT MAY BE REMOVED, JETS, POWER VALVE, ACCELERATOR PUMP CAM AND
ACCELERATOR PUMP DISCHARGE NOZZLES MAY BE CHANGED. IDLE HOLES MAY BE DRILLED IN
THROTTLE PLATES. THROTTLE PLATE SCREWS MAY BE TRIMMED FLUSH WITH SHAFT. NO
OTHER CHANGES ALLOWED.NO RESHAPING, POLISHING, GRINDING, MACHINING OR DRILLING
ALLOWED. NO ADJUSTABLE (JETTED) AIR BLEEDS OR CIRCUITS. METERING BLOCKS MUST
REMAIN UNALTERED. GASKET MUST REMAIN UNALTERED. NO HP PARTS ALLOWED.
CARBURETOR MAY BE SEALED TO THE INTAKE UPON INSPECTION.
ZZ4 ENGINES; HOLLEY 600 4 BBL CARBUERATOR, PART# 0-80540-1, MUST REMAIN
AS PURCHASED THROUGH HOLLEY (INCLUDED IN ENGINE PACKAGE). THE ONLY ITEMS THAT
ARE ALLOWED TO BE CHANGED ARE THE JETS, POWER VALVE AND ACCELORATOR PUMP CAM.
ABSOLUTELY NO OTHER CHANGES OR MODIFICATIONS ALLOWED! A TRACK SUPPLIED
STOCK HOLLEY CARBURETOR MUST MATCH YOUR CARBURETOR EXACTLY, INCLUDING FINISH.
ENGINE OIL
SPECIFICATIONS: THE USE OF COMBUSTION ENHANCING OILS OR ADDITIVES IS NOT
PERMITTED.
OIL COOLERS: ALLOWED, MUST BE
MOUNTED WITHIN THE BODY.
AIRCLEANER/FILTER: ONLY A ROUND DRY
PAPER MAXIMUM 5 AIR FILTER ELEMENT ALLOWED. AIR FILTER MAY NOT BE SPRAYED OR
SOAKED WITH CHEMICALS. THE AIR CLEANER TOP AND BOTTOM MUST BE METAL. ALL AIR
CLEANERS ARE SUBJECT TO TRACK APPROVAL. NO DUCTS, BAFFLES OR ANYTHING THAT MAY
CONTROL AIRFLOW ALLOWED ON OR IN THE AIR CLEANER ASSEMBLY. ALL AIR ENTERING THE
CARBURETOR MUST PASS THRU THE FILTER ELEMENT. NO AIR BOXES. A SHIELD MAY BE
USED ON THE FRONT OUTER HALF OF THE ELEMENT IF PLACED DIRECTLY ON THE ELEMENT
OR AS PART OF THE HOOD SCOOP. 5 MAXIMUM PAPER ELEMENT FILTER.
EXHAUST
HEADERS: SCHOENFELD ADJUSTABLE HEADER (917-16198H). NO SPACERS BETWEEN THE
CYLINDER HEAD AND THE HEADER. POSITIVELY NO INSERTS ALLOWED IN ANY PART OF THE
HEADER OR THE COLLECTOR. NO MERGE OR PYRAMID COLLECTORS. NO COATINGS OF ANY
TYPE IN THE HEADERS. 3 OF THERMAL WRAP MAY BE USED TO PROTECT THE SPARK PLUG
WIRES. THERMAL WRAP IS NOT ALLOWED ANYWHERE ELSE ON THE HEADERS.
EXHAUST PIPES: MAXIMUM / MINIMUM 3
INSIDE DIAMETER. RIGHTSIDE MUFFLER MUST MOUNT DIRECTLY ONTO THE COLLECTOR WITH A 6 TURNDOWN. LEFTSIDE MUFFLER WILL
HAVE A 45 DEGREE ELBOW CONNECTING TO THE COLLECTOR WITH A 6 TURNDOWN. EXHAUST
MUST REMAIN INSIDE DOOR PANELS.
MUFFLERS: MANDATORY! THE ONLY APPROVED
MUFFLER IS THE DYNOMAX 12 BULLET
MUFFLER, PART# 24222. ONLY ONE (1) MUFFLER PER EXHAUST PIPE. MUFFLERS MUST
MATCH. END OF MUFFLER MUST BE LOCATED 6 FROM END OF EXHAUST SYSTEM. THE LAST
6 OF THE EXHAUST SYSTEM WILL BE FOR A TURN DOWN. MUFFLERS MUST BE REMOVABLE FOR INSPECTION.
MUFFLER MUST REMAIN COMPLETE WITH ENDS AS PURCHASED. CHECK VALVE TUBES NOT
ALLOWED IN ANY PART OF THE MUFFLER. NO LEAKS IN MUFFLER OR EXHAUST SYSTEM. ANY
TAMPERING WITH MUFFLERS OR EXHAUST SYSTEM WILL RESULT IN DISQUALIFICATION AND
LOSS OF ALL EARNED POINTS.
IGNITION: THE ONLY DISTRIBUTOR
PERMITTED WILL BE THE PERFORMANCE DISTRIBUTOR (DUI) PART# AS PRODUCED BY
PERFORMANCE DISTRIBUTOR. ZZ4 CRATE MOTOR MAY CONTINUE USING THE GM CRATE MOTOR
DISTRIBUTOR FOR 2010. THE MODULE IN THE GM CRATE DISTRUBUTOR MAY BE
INTERCHANGED WITH THE DUI MODULE. NO AFTER MARKET CAPACITIVE MSD TYPE SYSTEMS. THE
FOLLOWING WILL NOT BE PERMITTED; ADJUSTABLE TIMING CONTROLS (NO EXTERNAL KNOBS
ON THE DISTRIBUTOR), IGNITION DELAY/TIMING RETARD DEVICES, ANY ACCESSORIES THAT
REGULATE THE POWER SUPPLY. THE FOLLOWING SYSTEMS ARE NOT PERMITTED; COMPUTERIZED,
MULTI-COIL, DISTRIBUTORLESS, DUAL FIRING MODULE BOX, CRANK TRIGGERED OR MAGNETO
SYSTEMS.
EXTERNAL RPM LIMITER : PERMITTED. MSD SOFT TOUCH REV CONTROL PART# 8728 ONLY. MUST BE MOUNTED TO THE ENGINE SIDE OF THE FIREWALL IN PLANE VIEW. VIOLET WIRE MUST BE CUT BACK TO THE HOUSING. GREEN & WHITE WIRES MUST RUN DIRECTLY TO COIL NEGATIVE.
TACHOMETER: TACHOMETER WIRE MUST RUN DIRECTLY TO THE DISTRIBUTOR. THIS
WIRE MUST BE SEPERATED FROM ALL OTHER WIRES AND MUST REMAIN UNOBSTRUCTED
FOR INSPECTION.
SPARK PLUGS: SPARK PLUG MUST
MATCH TYPE OF HEAD BEING USED. GASKET TYPE HEAD MUST USE GASKET SEAT SPARK
PLUG. TAPERED TYPE HEAD MUST USED TAPERED SEAT SPARK PLUG.
BATTERY: ONE (1) CONVENTIONAL
WET CELL 12 VOLT PASSENGER CAR BATTERY, MUST BE MOUNTED BEHIND THE DRIVERS SEAT
IN SPEC LOCATION. THE POSITIVE BATTERY CABLE MUST BE INSIDE THE FRAME RAILS.
BELTS &
PULLEYS: V-BELTS OR SERPENTINE ALLOWED, NO COG BELTS. ALUMINUM
AFTERMARKET PULLEYS ALLOWED. ALL ACCESSORIES MUST BE BELT DRIVEN OFF THE FRONT
OF THE ENGINE.
ALTERNATOR: OEM 12 VOLT TYPE ALLOWED, MUST BE MOUNTED ON THE FRONT
OF THE ENGINE. 12 VOLT SYSTEMS ONLY. NO
RACEMATE TYPE ALTERNATORS.
POWER STEERING: STOCK TYPE PUMPS
ONLY.
STARTER: STOCK OR AFTERMARKET
ALLOWED. MUST MOUNT IN STOCK LOCATION.
ENGINE COOLING SYSTEM: RADIATORS MUST
REMAIN IN STOCK LOCATION. ALL CARS MUST BE EQUIPPED WITH A MINIMUM ONE (1)
GALLON OVERFLOW CONTAINER. ONLY WATER CAN BE USED AS AN ENGINE COOLANT. THE
ONLY APPROVED COOLANT ADDITIVE ALLOWED IS WATER WETTER.
WATERPUMP: STOCK OEM MECHANICAL
TYPE ONLY. MUST BE BELT DRIVEN. ALLUMINUM PUMPS ALLOWED.
FUEL PUMP: ONE MECHANICAL,
STOCK TYPE DIAPRAM PUMP ONLY.
FUEL CELL: 16 GAL. STEEL
CONTAINER ONLY, MUST MOUNT IN SPEC LOCATION, WITH THREE (3) 1/8 X 1 STRAPS.
SPEC LOCATION IS DETERMINED AT 5 RIDE HEIGHT, BOTTOM OF FUEL CELL TO GROUND
MAY NOT BE LESS THAN 12.
FUEL: SUNOCO STANDARD
110 OCTANE TRACK FUEL ONLY. ADDITIVES OF
ANY TYPE OR CATALYSTS ARE NOT ALLOWED. NO COOLING OR ICING OF THE FUEL. FUEL
MUST PASS A CHEMICAL TEST.
DRIVETRAIN:
BELL HOUSING: COMMERCIALLY
MANUFACTURED, MINIMUM Ό THICK ALL STEEL FULLY ENCLOSED BLOW SHIELD (515-8653).
BOTTOM LIP OF BELL HOUSING MAY BE TRIMMED. A 2 HOLE IS MANDATORY FOR
INSPECTION OF THE CLUTCH ASSEMBLY. A 1 HOLE IS REQUIRED ABOVE THE RING GEAR TO
ASSIST IN CRANKSHAFT ROTATION DURING COMPRESSION TESTING.
CLUTCH &
FLYWHEEL: 7 1/4 2 DISC ACE RACING CLUTCH ( ACER725003K2) OR QUARTERMASTER 7 Ό V DRIVE
2 DISC CLUTCH. STOCK OEM TYPE
MAGNETIC STEEL 153 TOOTH RING GEAR/FLEX PLATE . NO LIGHTWEIGHT RING GEARS/FLEX
PLATES. FLEX PLATE MINIMUM WEIGHT 4.2 LBS.
TRANSMISSION: STOCK OEM SAGINAW 3
SPEED MANUAL TRANSMISSION. ALL GEARS MUST BE IN WORKING ORDER FROM INSIDE THE
DRIVERS COMPARTMENT WITH MECHANICAL LINKAGE.
ALL INTERNAL PARTS MUST BE STOCK OEM. STOCK OEM GEAR RATIOS ONLY. NO
POLISHING, WELDING, MACHINING, DRILLING OR LIGHTENING OF ANY PARTS. HIGH GEAR
MUST HAVE A 1:1 RATIO. THERMAL COATINGS ARE NOT ALLOWED. TRANSMISIONS MAY BE
SEALED UPON INSPECTION.
DRIVESHAFT: MAGNETIC STEEL 32
CENTER TO CENTER DRIVESHAFT WITH A MINIMUM 2 DRIVESHAFT TUBE.
REAREND: MUST BE A 60 FULL
FLOATING MAGNETIC STEEL FORD 9 REAR END (802-95345-60). REAREND MUST BE LOCKED WITH A MAGNETIC
STEEL MINI SPOOL ONLY. STOCK CARRIER. NO LIGHTENING OF ANY REAREND COMPONENTS
INCLUDING THE YOKE. SOLID MAGNETIC
STEEL AXLES. CENTERLINE OF THE REAR (PINION FLANGE) MUST BE WITHIN 1 OF THE
CENTERLINE OF THE CHASSIS. NO CAMBERED REARENDS. THE BRACKETS THAT ATTACH THE
TRAILING ARMS/SHOCKS TO THE REAREND MUST BE PART# 917-20155.
GEAR RULE: JASPER CRATE ENGINE; 4.30:1 ONLY.
GM ZZ4 CRATE ENGINE:
4.11:1 ONLY
ADJUSTING
DEVICES:
THE ONLY DEVICE IN THE DRIVERS
COMPARTMENT WILL BE FOR BRAKE PROPORTIONING (FRONT TO REAR ONLY). NO OTHER
DEVICES OF ANY KIND TO CONTROL OR ALTER THE HANDLING, WEIGHT PERCENTAGE, RIDE
HEIGHT ECT. OF THE CAR WILL BE ALLOWED.
ADDITIONAL
INFORMATION:
THOMPSON MODIFIEDS MUST ALSO COMPLY WITH THOMPSON
INTERNATIONAL SPEEDWAY GENERAL/SAFETY RULES. ROLLCAGE & CHASSIS WILL FOLLOW
SPEC SHEET PROVIDED BY SPEEDWAY DISTRIBUTORS. ANY REPAIR NEEDED TO THE
CHASSIS MUST BE MADE TO PROPER SPEEDWAY MOTORS SPECS. INFORMATION AVAILABLE
THROUGH LOCAL VENDOR.
THOMPSON INTERNATIONAL SPEEDWAY RESERVES THE RIGHT TO
CONFISCATE FROM THE FEATURE WINNER ANY PART FOR TESTING AND/OR COMPARING. THE
COMPETTOR WILL HAVE RETURNED TO THEM ANY LEGAL PART PRIOR TO NEXT RACE EVENT.
THOMPSON INTERNATIONAL SPEEDWAY
ALSO RESERVES THE RIGHT TO CONFISCATE ANY ENGINE, SEE ENGINE RULE.
SHOCK CLAIMER RULE, SEE SHOCK RULE.
ALL PARTS FOR THIS DIVISION ARE A SPEC PART. MANY PARTS MAY BE
PURCHASED THROUGH LOCAL PART STORES, BUT MUST BE EXACTLY THE SAME AS THE SPEC
PART. CALL FIRST AND INQUIRE BEFORE PURCHASING OR USING A PART. THERE WILL BE ZERO
TOLLERENCE RULE FOR ALL PARTS IN THESE RULES.
ALL PARTS ARE AVAILABLE THROUGH
SPEEDWAY MOTORS, LOCAL DISTRIBUTOR DUBOIS MOTORSPORTS, 21 SOUTH STURBRIDGE RD.,
CHARLTON, MA 01508, PHONE: 508-248-7018, HOURS: 10-6 MON-FRI., 10-2 SAT.
CONTACT DICK OR TONY DUBOIS. ALL PARTS EXCEPT CHASSIS MAY ALSO BE PURCHASED
DIRECTLY FROM SPEEDWAY MOTORS BY CONTACTING DENNIS STEPHENS AT 402-323-3210 EXT
2927.