UARA STARS Rules

2007 UARA STARS Late Model Stock Rules

2007 Rule Book

• Forward

• General Rules and Specifications

• Rain-Out / Race Cancellation Policy

• Weight Rules

• Protest and Inspection

• Flags

• Participant Conduct Rules

• Payoff Procedures

2007 UARA STARS Rule Amendments

UARA LATE MODEL STOCK CARS

Body Dimensions

Technical Data

The following rules are designed to mirror Late Model Stock cars throughout the country. The UARA will make every attempt to keep these rules as close as possible. When and if other sanctioning bodies make rule changes those changes will be investigated and decided on in the best interest of the UARA.

UARA Fuel Requirements

All competitors will be required to purchase a minimum of ten (10) gallons of gas each 150-lap race and fifteen (15) gallons for 200 or more laps. All fuel sales will be logged. Any competitor caught using fuel other than what is sold for UARA events will be penalized. No additives of any type will be permitted. Fuel will be tested at each and every event.

UARA Muffler Requirements

Mufflers may be required at certain events. These events will be specified on each entry blank.

UARA Tire Rules

Official approved UARA tires are as follows: Tires will be purchased at the speedway the day of the event. Said tires will be impounded by series officials and released to teams at designated time for “scuffing”, qualifying and so on. Tire softening and/or treating of any kind is illegal. A gas sniffing device or a durometer, both prior to, and after any event, may do testing. In all cases, decisions of the track officials are final. Illegal tires will be confiscated (including wheels). Track officials will issue Durometer readings. Tires may not be defaced in anyway, shape or form. All original factory markings must be complete and intact.

UARA Safety Requirements

Racing seats are mandatory, but must be factory manufactured aluminum and acceptable to UARA Officials. Positively no homemade aluminum, plastic, or fiberglass seats allowed. Seat must be properly installed and seat back rest cannot be moved back further than the trailing edge of the door.

Window Nets

Window net brackets must be made of 1” x 3/16” flat bar or ½” solid bar. Must not be any slake in net when net is fastened.

SEAT BELTS AND SHOULDER HARNESS

1. A quick release belt no less than three (3) inches wide is mandatory. Both ends of the lap belt must be fastened to the roll bar cage with high quality bolts no less than 3/8 inch in diameter.

2. Shoulder harness must be no less than three (3) inches wide and must come from behind the driver’s seat. Where the harness crosses the roll cage, it must pass through a steel guide welded to the roll cage that will prevent the harness from sliding side to side. Shoulder harness inertia reels cannot be used.

3. A center (crotch) belt must be securely mounted to the lower seat frame at the bottom and to the lap seat belt on top.

4. Where the belts pass through the seat edges, it must have a grommet installed, be rolled, and/or padded to prevent cutting of the belt.

5. All seat belts and shoulder harnesses must connect at the lap belt with an UARA approved quick release

buckle.

6. Harness systems must have the dates on the belts and may not be any older than 2 years. Series officials reserve the right to not accept any belts that have no date, are frayed or stretched. Manufacturer’s recommend that belts be replaced every three (3) years regardless.

7. IT IS THE RESPONSIBILITY OF THE DRIVER, NOT UARA TRACK OFFICIALS, OR THE PROMOTER, TO INSURE

THAT HIS/HER SEAT BELT RESTRAINT SYSTEM AND ALL COMPONENTS ARE APPROVED. CORRECTLY INSTALLED, MAINTAINED AND PROPERLY USED.

HELMETS

Each driver must have an approved helmet.

FIRE CONTROL

1. It is recommended that every driver wear a fire resistant suit and gloves at all times he or she are on the speedway.

2. It is recommended that each car have, within the driver’s reach, built-in fire extinguishing equipment, but it cannot be of the dry powder type (must be Halon 1211 or equivalent). The fire extinguisher must be securely mounted beyond the right side or the rear of the seat.

3. Any car not equipped with a built-in fire extinguisher must have an adequate fire extinguisher securely mounted beyond the right side of the seat. It is recommended that at all times, while the car is being refueled on a pit stop or while the fuel is being transported to and from the pit area, all crew embers involved should wear a fire resistant suit, gloves, shoes, and head and face shield that effectively covers the face.

A. COMPETING MODELS

All UARA Late Model cars are eligible for this division per UARA rules (not including weight).

The following are eligible models approved for competition:

Chevrolet: 1995 – 2006 Monte Carlo

1992 – 1994 Lumina

2002-2005 Intrepid

2006 Charger

Ford: 2000 – 2005 Taurus

2006 Fusion

Pontiac: 1992 – 2004 Grand Prix

All other models must be submitted to UARA officials for approval.

B. OVERALL WEIGHT

1. All specified minimum weight requirements would be with gas, oil and water, including driver. When cars are weighed after a race, wheels and tires will not be permitted to be changed inspection will allow maximum of 1% weight deduction.

2. All General Motors models must maintain a minimum weight of 3,100 lbs. – 1,400 lbs. Right side weight.

3. Crate motors will be adjusted as needed. (Create models will have a 75 lb weight break to begin season)

4. Added weight must be in block form of no less than five (5) pound increments (pellets disallowed).

Added weight must be securely bolted in place. No weight may be added to the outside of the frame rails or ahead of the front spindles or behind the rear axle or inside the driver’s compartment. Dislodged weight cannot return to the car for weighing after the race.

5. Nothing outside of frame rails to exceed more than .060 gauge mild steel material. This includes rocker panels.

6. No mechanical or electrical devises for shifting weight will be permitted inside the driver’s compartment.

7. No hydraulic weight shifting devices are permitted.

8. No weight adjustments are permitted on the left front wheel during a race

9. All cars must not exceed a maximum of 55% left side weight.

10.All weight boxes parallel with frame rail.

C. DETAILED CAR BODY REQUIREMENTS

1. Cars must be neat appearing. Interior must be painted.

2. Original dimensions of all bodies must remain as manufactured, except for changes, which may be necessary for tire clearance.

3. All cars must have complete steel bodies, hoods, fenders, bumpers and grills in top quality condition. All aftermarket bodies and trim parts must be acceptable to track officials.

4. No streamlining allowed, such as headlights, radiator grilles, top of windshields or under pans. Cars must remain standard in appearance. Grilles must be stock standard height and width and mounted in stock location.

5. Full windshield and rear window in good condition mandatory. Windshields and rear glass must be installed in their original standard positions.

6. All doors must be fastened in a manner acceptable to track officials.

7. Fenders may not be cut or altered except for tire clearance.

8. Bodies must be mounted center of center line of car, including front and rear bumper cover, roof, deck lid, spoiler and hood.

D. SPOILERS

1. Track officials before installation must approve all spoilers. An approved spoiler must be a solid non-adjustable part of the body that controls the flow of air over one (1) surface only.

2. A non-adjustable rear spoiler must be attached to the rear deck lid.

3. All cars will be allowed to use a rear spoiler not exceeding five (5) inches in height and not more than 54 inches in width, and must be solid 1/8 inch metal or ¼ inch clear Lexan glass.

4. A maximum of 39 inches from the ground to the top of the spoiler (with driver in car) is permitted.

5. The rear spoiler angle must be set at 50 to 60 degrees.

6. Spoiler must be mounted center to the center line of the car.

E. FRONT AIR DAMS

The approved front air dams must maintain a minimum ground clearance of four (4) inches. All Support brackets must be mounted to the rear of the dam and no part of the front air dam will be permitted to extend past the outer edge of the right and left front tire. No air deflectors, brackets or braces can be used to increase down force behind air dam.

F. WINDSHIELDS

1. A Lexan glass windshield must be used in place of a standard glass windshield.

2. The windshield must be a minimum of 1/8 inch thick and have a minimum of three (3) metal straps or braces 1/8 inch by one (1) inch installed inside the windshield. The straps must be bolted to the roof panel or the roll bar at the top and dash panel at the bottom with 5/16 inch bolts. A piece of rubber stripping must be installed in a manner that will not obstruct the vision of the driver.

3. Windshield clips three (3) inches wide by one (1) inch by 1/8 inch must be installed. Three (3) clips will be bolted to the top of the car and extend over the edge of the wind-shield.

4. Two (2) clips will be bolted to the cowl and extend over the bottom of the windshield. Clips must be spaced a minimum of twelve (12) inches apart.

G. REAR WINDOW

1. Only Lexan glass is to be used in the rear window opening. The Lexan glass must be the same thickness and formed to the same shape as the original equipment glass. Only a light tint will be permitted.

2. A vent deflector panel may be installed at the bottom of the windshield “A” post. The deflector may extend a maximum of eight (8) inches rearward from the lower leading edge of the “A” post.

3. Quarter windows must be the same size and located in the stock location for the make and model car being used. Only clear Lexan is to be used in the quarter windows.

4. Two (2) 1” braces and two (2) non-adjustable support braces are required and must be bolted top and bottom with 5/16” bolts.

Manufacturer                          Minimum Measurement

2003-2006 Chevrolet Monte Carlo                 46 inches

2004-2006 Dodge Intrepid                             43 inches

2000-2005 Ford Taurus                                  43 inches

Dodge Charger and Ford Fusion available with Officials

Roof, “B” and “C” post must remain as manufactured.

Back glass to be measured 3” from the top of rear window. A template will be used.

H. FIREWALL

1. All racecars must have full firewalls of magnetic steel not less than 22 gauges.

2. Firewalls must extend straight across from the left side with no offset and extend from the top of the dash down to the frame rails. If floor pan is raised, the right side the firewall must extend down to the top of the frame rails

3. All firewalls must be sealed with no holes between the engine and driver’s compartment, and they must be welded and not pop riveted.

4. All cars must have a complete dash.

5. “Crush” panels up to 8” wide are permitted.

I. DOORS

1. Magnetic steel doors must be the same size and configuration as a stock production door. The door must not extend past the front and rear tires. All doors must be securely fastened to the front fender and rear quarter panel. Must be steel - 24 gauge or .025 inches thick.

J. FENDERS, QUARTER PANELS AND ROCKER PANELS

1. As an option the front fenders may be made from flexible, rubberized plastic material maintaining stock factory dimensions and must be acceptable by UARA Officials. All front fenders and rear quarter panels must be magnetic steel and installed in their standard location as referenced by a stock production car. When measured anywhere across the rear of the car, a maximum of three (3) inches difference plus or minus from a stock production car will be permitted. When cutting fenders or quarter panels for tire clearance, the original tire opening contours must be followed. Front fender wheel openings cannot exceed more than 10” from wheel lip to fender edge.

2. All fenders and quarter panels must be roll formed to cover the tires—left and right side must match. Fenders and quarter panels must not extend out past the tire sidewall. Interior wheel wells must be radiuses the same as the tire or they may extend from the front of the rear wheel upward, turn and run horizontal to the rear bumper cover.

3. Excessive modifications to the rocker panels are not permitted. Rocker panels must remain straight and parallel with the frame rails. Rocker panels must not extend past the front and rear tires at any point. If rocker panel trim moldings are used, they must be attached to both sides. All bodies must be mounted centerline of the tread width and frame.

4. All rocker panels and rocker panel trim moldings must be magnetic and not made of material more than .060 gauge mild steel.

5. When checking offset of frame rails is done with a string no part of the body may touch.

6. Rear quarter panels will be measured so that there is not a flat shelf wider than 2 1/2 inches from the C-post to the center of roll on quarter panel, measured straight up from center of wheel.

7. Fender brackets must be mounted to hold fenders and not used or designed for down force.

8. Bottom of Quarter panels will be measured from the ground up to the bottom of the quarter panel. Measurement from rear of bumper cover to ground and Measurement at the front of quarter panel will have a maximum 3” difference from front to rear. Left and right side quarter panels must match within ½”.

K. GRILLES

Grilles must remain the same size and shape as production. Grilles may be covered with two (2)Layers of screen wire attached to the grille. Screen mesh must be porous. Closed grilles for racing will not be permitted. All air entering the

grille must pass through the radiator.

L. HOODS, ROOF

1. Hood must close in original position and maintain original configuration. Hoods may be made of reinforced fiberglass. Flat hoods only.

2. Hood must have positive fasteners, right side, left side, center and required rear. Hood must lay flat and seal against windshield and fenders.

3. No holes permitted in hood for cooling. No hood bubbles or scoops will be permitted.

4. All roofs must be the same size and shape as stock production. Roof panels must be the same size as a stock production roof for the make and model car being used and acceptable to track officials.

5. All roofs must be made of magnetic steel.

6. Must be mounted center of center line of car.

M. REAR DECK/TRUNK LIDS

1. The rear deck lid must be magnetic steel and maintain the same dimensions and bodylines as a standard production car. Positive pin fasteners must be used on the right and left sides of the deck lid.

2. Fuel cell compartment firewall must be constructed of steel, not less than 22 gauges, welded into position.

3. Trunk floor around fuel cell must be complete. When deck lid is raised, the perimeter around it and down to the cell or trunk must be enclosed with not less than 22 gauge magnetic steel.

4. When the trunk area is enclosed from the left rear quarter panel to the right rear quarter panel, no part of the trunk floor may be lower than the top of the frame rail. If crush panels are used, they can be a maximum of eight (8) inches wide.

N. BUMPERS

The bumper covers must be acceptable to Track Officials and meet the following requirements:

A. The approved front and rear bumper covers must be installed in the same location as far as the height, width, and depth as a stock factory production bumper.

B. Magnetic steel tubing must be used to reinforce the front and rear bumper covers. The tubing must not be exposed and must remain behind the bumper covers.

C. The front and rear bumper covers must be solid. Holes will not be permitted.

D. All nose and tail sections must be a two (2) piece design, separated in the center from top to bottom, and must be made of a flexible, rubberized plastic material. Front and rear nose must be mounted center to center line of car.

F. NO DOWN FORCE NOSES ALLOWED

O. BODY MEASUREMENTS

Body measurements are available from Technical Director.

P. GENERAL ENGINE REQUIREMENTS

Only engines of a type approved by UARA are permitted. Engines may be interchanged within any corporate manufacturer’s line.

Q. ENGINE CHARACTERISTICS

The following characteristics must be identical with the production engine upon which recognition of type has been granted. All parts listed below must originate from stock production castings and forging, which have been machined according to the normal machining schedule, utilized for standard production parts. No coating on any internal; engine components, including but not limited to ceramic or Teflon. Rod, main and cam bearings may be coated.

1. ENGINE BLOCK: Material, number of cylinders, angle of cylinders, angle of cylinders, cylinder bore, number and type of main bearings, integral or separate cylinder sleeves, location of cam-shaft, overall configuration.

2. CYLINDER HEAD: Material, number of valves per cylinder, type of combustion chamber, location of spark plug, arrangements of valves, valve location in relation to cylinder, valve angle, type of valve actuation, number of intake and exhaust ports, center distances and shapes of intake and exhaust ports, firing order, angle of port face in relation to mating face of head to block.

3. Crate engines are subject to inspection at any time. This will include disassembling of engine parts and seals.

Crate Engine Rules

1.GM part #88958604 is the only crate engine approved at this time. Permitted to run GM Crate in Dodge or Ford Bodies.

2.The engines can be purchased and sealed through the racetrack you plan to run.

NOTE: Engine must be sealed

3.All crate engines must run a Mel’s ignition, an H.E.I. type ignition with an internal built-in rev limiter (max allowed is 6500 rpm) and the coil must be mounted on the engine side of the firewall as close as possible. No amplifier boxes.

4.No Changes allowed must remain factory (rocker arms-harmonic balancer valve springs ect.)

5.Carburetor allowed #0-80541-1 Holley 650 cfm. No spacer permitted. Stock out of box. Only change that can be made are jets and power valve.

6.All other Late Model Stocks are to be the same as Rules in this book.

R. ENGINE LOCATION

1.All GM engines must be located so the center of the forward most spark plug hole on the right side of engine block is in line with the centerline of the upper ball joint.

2.Ford and Chrysler engines may be located so that the front of the cylinder head on the right side is in line with the center of the upper ball joint. Center of crankshaft must be centerline of the frame and tread width, front and rear.

S. ENGINE GROUND CLEARANCE

All engines must maintain a height of 12” from ground to center of crankshaft, with car at race trim and with driver

T. ENGINE MOUNTS

1. All engine mounts must be securely bolted.

2. Only UARA approved reinforced mounts can be used.

U. ENGINE DISPLACEMENT (V-8 engines only)

1. General Motors – 350 cu. In.

2. Ford – 351 cu. In.

3. Chrysler – 340 or 360 cu. In.

4. Maximum overbore .045in.

5. The final displacement will be determined by totaling the displacement of all cylinders.

                                              Manufacturer                         Bore                    Stroke

                                               Dodge                                 4 inches                3.580 inches

                                               Ford                                    4 inches                3.500 inches

                                               General Motors                    4 inches                3.480 inches                            

V. ENGINE BLOCKS

1. Engine blocks must be a product of the manufacturer of the make and model car being used. No aftermarket blocks permitted.

2. Block must retain all standard external dimensions with the exception of the maximum allowable overbore and the surfacing of the block deck. No angle cutting of the block deck permitted.

3. Aluminum blocks will not be permitted.

4. Internal polishing of the block is not permitted.

5. Blocks may be deburred.

W. PISTONS & RODS

1. Any flat top, fully skirted, three rings, with all rings in place; stock type must not extend past the surface of the block.

2. Only magnetic steel pins maintaining a minimum diameter of .927 may be used.

3. No portion of the piston may protrude above the top of the block surface.

4. Only solid magnetic steel connecting rods permitted. Hollow beam, titanium, stainless steel or aluminum connecting rods will not be permitted.

5. All rods must maintain the maximum/minimum lengths listed:

Chevrolet: 5.700” – 6.250”

Ford “Cleveland”: 5.778” – 6.250”

Chrysler: 6.000” – 6.250”

6. Stainless steel or titanium connecting rods are not permitted.

X. CYLINDER HEADS

1. All cylinder heads must be UARA approved and all modifications must be submitted to UARA before any proposed modifications can be made.

2. Approved manufacturer’s identification numbers must remain on the part being used.

3. Cylinder heads must be in stock cast iron production only, limited to two (2) valves per cylinder. No titanium valves or valve springs permitted.

4. No port matching or flow work is permitted. No angle cutting of the block or head is permitted. The head or stud bolts cannot be offset or drilled off-center for the purpose of moving the head in any direction.

5. Three (3) angle valve jobs are permitted. When cutting the valve seat angles, no stone or grinding marks are permitted above the bottom of the valve guide. All cutting in reference to the valve job and bowl must be centered off the centerline of the valve guide. The bowl area under the valve seat down to the bottom of the valve guide must be the same configuration as far as the shape and finish as it was from the manufacturer. Surfaces and/ or edges where the cutter stone has touched must not be polished. No hand grinding or polishing is permitted on any part of the head.

6. Only Chevrolet part # 10134392, casting #14011034 and #12480034 heads are permitted in GM models. Chrysler W-2 cast iron heads are permitted. Only Ford part #M-6049-N351 cast iron cylinder heads are permitted.

7. All valves must be identical in appearance and construction as an OEM type valve. No air directional surfaces will be permitted on any of the valve surfaces. Valve stems must have a minimum diameter of 11/32 inch. The valve stem diameter may be undercut to a minimum of 5/16” in the area between the base of the valve guide and the back of the valve face. No hollow stems will be permitted.

8. The maximum valve sizes as measured across the face of the valve are as follows:

GM: Intake – 2.020 Exhaust – 1.625

Ford M-6049-N351 :Intake – 2.020

Exhaust – 1.600

Chrysler Corp.: Intake – 2.020 Exhaust – 1.625

9. External modifications will not be permitted. Heads will be limited to a minimum 62cc combustion

chamber.

10. No internal polishing, porting and relieving are permitted. No coating on any internal engine components, including, but not limited to Teflon.

11. On all engines, only one standard flat gasket may be used between the head and intake manifold. The maximum thickness allowed will be .117 inch. No wedge-type gaskets allowed. No metal or Bakelite spacers allowed.

Y. CRANKSHAFT & HARMONIC BALANCER

1. Only standard magnetic steel or cast iron production design crankshafts will be permitted. If after market crankshafts are used, they must be designed and manufactured the same as an OEM crankshaft for the approved standard production engine. Balancing will be permitted. Stroke may not be increased or decreased. Counterweights must be the same shape, may be polished, but they must not be knife edged, undercut, or drilled to lighten the crankshaft The rod bearing journals may be drilled. The main bearing journals must not be drilled. When weighing crankshafts the minimum weights listed below shall include the timing chain sprocket.

2. Min. crank weights: 50lbs on all makes.

3. Only standard OEM magnetic steel elastomer type harmonic balancers will be permitted.

4. Electronic switching devices or sensors will not be permitted on the harmonic balancer, crank-shaft or flywheel.

Z. CAMSHAFT, LIFTERS & ROCKER ARMS

1. Only magnetic steel camshafts permitted.

2. Belt or gear drive systems will not be permitted.

3. Only standard production sleeve type cam bearings meeting all stock dimensions will be permitted. Needle or roller bearing cam bearings will not be permitted.

4. Camshafts must be driven in the same direction as production engine.

5. Only steel magnetic solid or hydraulic lifters will be permitted.

6. Mushroom or roller tappets will not be permitted.

7. “Rev-Kits” will not be permitted.

8. Lifters must maintain stock diameter. Ford -.875, Chevrolet - .842, Dodge - .903.

9. Only magnetic steel pushrods are permitted.

10. Roller rocker arms are permitted.

11. Roller arms for all GM and Ford engines must be an independent single stud type.

12. Dual shaft rocker arms are not permitted.

13. Offset rocker arms will not be permitted except for the Ford #M6049-N351 cylinder head (intake valve only).

14. Stud girdles are permitted.

15. All Dodge and Chrysler model cars may mill the existing rocker arm single shaft support towers down and install mounting plate that permits the rocker arms for a single cylinder to be mounted from the top for easy removal.

16. UARA officials must approve all aftermarket rocker arm assemblies.

17. Valve covers must be made of steel or aluminum. Magnesium and other exotic materials will not be permitted.

The approved firing orders using approved cylinder identification are as follows:

        Dodge                        1-8-4-3-6-5-7-2

        Ford                           1-3-7-2-6-5-4-8

        General Motors           1-8-4-3-6-5-7-2

The Manufacture's cylinder identification sequence is as follows:

        Dodge and General Motors                        Ford

                    (Front)                                        (Front)

                1            2                                    5            1

                3            4                                    6            2

                5            6                                    7            3

                7            8                                    8            4

AA. INTAKE MANIFOLD

Eligible manifolds include Edlebrock Performer:

Chevrolet #2101

Ford #2665,2750.2181

Chrysler #2776

Ford #M-9424-C358

These manifolds must remain as manufactured. Approved manufactures’ identification in the form of cast in part numbers must remain unaltered on the manifold. Port matching or flow work is not permitted. Manifolds must not be painted or coated. Only one (1) standard flat gasket, a maximum compressed thickness of .075 inches, may be used between the cylinder head and intake manifold. All Eldebrock part numbers are current design Eldebrock Performer Series intake manifolds. Older design manifolds with the same part number are not permitted.

On Chrysler Weiand part number 8015 and Chrysler, part number P4529295, casting number 8015, manifolds, it is permissible to weld a maximum of ½” from the bolt flange surface up into the intake port to match W-2 port design.

Ports may be welded only. Grinding or polishing is not permitted.

BB. CARBURETOR

The Carburetor must be UARA approved. UARA officials will use a carburetor provided by Holley manufacture as a guide in determining weather a Competitors carburetor conforms to the specifications of the Rule Book.

Eligibility

The UARA-approved four (4) barrel carburetor and carburetor rework guidelines are listed below:

1.       UARA has approved the Holley 4150 four-barrel carburetor, part #80507-1 HP and #80507-2 HP with venture size of 060-1.064” and maintaining throttle bore maximum size of 1,4365-1,4385”. Only Holley replacement parts can be used on any carburetor rework. See below for rework guidelines.

      Holley #80507-1 HP and Holley #80507-2 Hp four barrel Carburetor rework Guidelines:

Carburetor Main Body:

Reshaping, polishing, grinding, or drilling of additional holes will not be permitted. Screw in air bleed jets will be permitted for the 80507-1 HP and the 80507-2 HP main body. The amount of holes or passages must remain as manufactured. Additional and/or plugging holes or passages will not be permitted in the Holley 80507-1 HP and 80507-2 HP. No lowering or raising the main body floor.

Carburetor Boosters

The booster type must not be changed. The Holley booster part number 45R-107-1, with the casting number 45R-107 and part number 45R-312R, with the casting number 45R-312 are the only boosters that will be permitted. The Holley casting numbers must remain legible on the top of all booster stems. Size and shape must not be altered. Height and location of boosters must remain as manufactured. All boosters must remain a minimum outside diameter of .614-.618 inch. The addition of material will not be permitted to the boosters with the exception of a small amount of epoxy that may be used to assist in the securing the booster stem to the main body of the carburetor.

Carburetor Venturi

The venture area must not be altered or reshaped in any manner. The venturi must be completely round. The casting ring must     not be removed. The location of the venturi must remain as produced by the manufacturer.

Carburetor Throttle Body (base plate)

The carburetor throttle body must be used as provided by the manufacturer. The positioning of the throttle bores in the carburetor throttle body must be the same as provided by the manufacturer. The throttle bores must be completely round. The throttle bores must be straight without taper from top to bottom. The throttle bores must remain perpendicular to the top and bottom of the carburetor throttle body. The throttle body (base plate) must not be altered in shape or size. All vacuum holes must be threaded and plugged.

Throttle Plates (Butterflies)

Stock Throttle plates must not be thinned or tapered. Idle holes may be drilled in the butterflies. Screw ends may be cut even with the shafts, but the screw heads must remain slandered.

Throttle Shafts

Shafts must remain stock and must not be thinned or cut in any manner.

Carburetor metering blocks

Any Holley metering block can be used. Must have Holley identification marks on metering block. No after market metering blocks or Billet aluminum blocks. Surfacing of the metering blocks for improved gasket seal will be permitted. The only metering blocks permitted for the Holley 80507-1 and 80507-2 HP will be a Holley casting metering block. To order metering block part number 12145 (screw in emulsion bleed jets) the sales number is 134-270. For the Holley approved metering blocks, the amount of holes and passages and the location must remain as manufactured, however, hole sizes may be altered. Additional holes and passages will not be permitted in the Holley approved metering blocks.

Accelerator linkage May be changed.

BB-1    Spacer Plate

1. Only one piece, solid, aluminum carburetor spacer, a minimum 0.950” maximum 1.000” in thickness, must be installed between intake manifold and carburetor.

2. The spacer must be in the center on the intake manifold and have an open hole. Hole must be cut perpendicular with the base of the carburetor. Taper, bevels, or any other modifications will not be permitted. The minimum hole opening is 3.25 and a maximum of 3.640. A one piece, one hole paper gasket. Maximum .065” thickness that matches the exterior dimensions of the carburetor throttle base plate must be installed between the carburetor and spacer.

3. Spacer allowed on Ford and General Motors only. Dodge will not be allowed to run a spacer, the carburetor must mount directly to Intake.

3. A one piece paper gasket maximum .065” thickness must be installed between the spacer and the intake manifold. The gasket must not be larger than the top of the intake.

CC. AIR CLEANER & AIR FILTERS

1. Only a round dry type paper air filter element maintaining a minimum of 12 inches and a maximum of 14 inches in diameter will be permitted.

2. The air filter element must maintain a minimum of 1-1.2 inches and a maximum of four (4) inches in height. All air shall be filtered through the element. The air filter elements may not be sprayed or soaked with any chemicals or liquids.

3. Only a round metal air filter housing is permitted. The top and bottom of the air filter housing must be solid and must be the same diameter. No lips or expanded edges are permitted. The air filter housing must be the same diameter as the air filter element.

4. The air filter housing must be centered and sit level on the carburetor. The bottom of the air filter housing must be lower than the top of the carburetor choke horn.

5. No tubes, funnels, or any device, which may control the airflow, is permitted inside of the air cleaner or between the air filter housing and the carburetor.

6. NO cowl induction permitted.

NOTE: Holley 2300 two barrel carburetor #7448 is allowed. Must meet 2003 rules and approved by UARA OFFICIALS.

DD. IGNITION SYSTEM

1. Electronic distributors are permitted. All electronic distributors must be stock type housings equipped with a magnetic pickup gear driven, and mounted in the stock location.

2. Single or dual point camshaft driven distributors are permitted.

3. Only one (1) ignition coil is permitted and it must be mounted on the engine side of the firewall.

4. Only one (1) electronic firing module box is permitted (if used) and it must be mounted on the

right side of the dash panel.

5. No computerized, multi-coil dual electronic firing module box or crank trigger systems permitted. All ignition systems are subject to approval by UARA officials.

6. Any make or brand of spark plugs may be used.

7. The alternator system when used must be within working specifications.

8. Competitors can only claim the ignition box in the car that places directly in front of him/her.

9. The self-starter must be in working order and in stock location. Only standard factory OEM type production starters permitted. All cars must start under their own power. After race is underway, cars may be started by hand pushing in pit area only. Under no circumstances is any car to be pushed onto the track from pit area.

10. All electrical switches must be located within reach of the driver.

11. A labeled, covered switch must be located on the front of the dash panel in the center. The switch must be wired to the battery cable in a manner that would cut off all electrical power to the car.

12. No onboard computers, automated electronics, recording devices, or digital readout gauges are permitted.

13. The ignition amplifier must have six (6) pin female connector attached to its output leads of the Packard Electric type (MSD part #8170) to facilitate manual operation and testing of the ignition components during inspection.

14. Ignition amplifier boxes and RPM limiters must be analog only and not contain programmable, computerized or memory circuits.

15. The tachometer control or reset switches must be built into the unit. Remote switches will not be permitted

16. No type of traction control of any kind will be permitted. If detected $5,000.00 fine and indefinite suspension for parties involved.

17. All ignition systems are subject to approval by UARA officials.

18. Green and Purple wire must come directly from MSD box to Distributor. The Green and Purple wire must be mounted on dash in clear sight and out of reach of driver. No other wires can be attached to either of these wires.

19.  All switches must be labeled and connected to a legal operating device such as fan, gauges, and other accessories. Any wires or switches not being used must be removed. Any wires, connections or switches that do not connect with result in disqualification.

EE. BATTERY

1. The battery must be installed in an enclosed battery box, complete with a cover, located behind the front spindle in front of the firewall or in front of the rear axle housing behind the driver’s seat. The battery box must be mounted inside the outside edge of the frame rails and cannot extend below the bottom of the frame rail.

2. Any battery that would be installed during the race must be installed in the battery box. Only one (1) standard automotive 12-volt battery, not to exceed 13.5 volts will be permitted. Accessories to regulate the power supply will not be permitted.

FF. ENGINE COOLING SYSTEM

1. No icing Freon type chemicals or refrigerants may be used in or near the engine compartment. No additional water lines may be added to or from the water pump or intake manifold to the cylinder heads or block.

2. Only mechanical water pumps, in the stock location, turning in the same direction as the crankshaft rotation are permitted.

3. Removal of fan blades or fan belt is not permitted.

4. Engine fan blades shall be a minimum of 3.5 inches wide and diameter of fan shall be no less tha