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UARA STARS Rules 2007 UARA STARS Late Model Stock Rules
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 NetsWindow 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 CONTROL1. 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 CHARACTERISTICSThe 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 Rules1.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 LOCATION1.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 CLEARANCEAll 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. CARBURETORThe 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. EligibilityThe 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 Plate1. 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 FILTERS1. 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 than 14 inches. 5. No flat fan blades permitted. Only the pitch of the fan blades may be changed. The same fan used for qualifying must be used for the race. 6. Fan must consist of a minimum of four (4) blades and be made of steel. 7. A fan guard must be installed. The fan shroud cannot extend mote than one (1) inch behind the fan blades. No air directional baffles or deflectors are permitted between the radiator and the engine firewall. 8. The radiator must remain stock appearing and remain in standard position. 2” of tilt from 90-degree angle is permitted. Radiator dust screens are permitted. 9. Radiator overflow pipe may be relocated to the rear of the car. 10. A panel, the width of the radiator may be attached from the front bumper to the trailing edge of the radiator. All air that enters the grille area must flow through the radiator core. 11. No antifreeze is permitted.
GG. ENGINE LUBRICATION 1. Any oil is permissible. 2. Oil filters and breathers acceptable to track officials may be used. 3. No dry sump or air over oil systems will be permitted. During the race, oil must be added from the engine compartment. No external oil pumps permitted. 4. Oil drain lines will not be permitted. 5. Inside valve cover-oiling systems will not be permitted. 6. Quick disconnect fittings will not be permitted. 7. Oil pans must be made of magnetic steel and must be acceptable to UARA officials. 8. The oil pans must be a wet sump type and manufactured using a stock production type pan with only a sump reservoir added to the bottom. All bolt holes and bolt hole flanges must be visible. Kick outs will not be permitted between the bolt on flange and the top of the added sump. 9. Engine coolers may be either an oil to air or an oil to water heat exchanger mounted forward of the engine firewall. Air ducts will not be permitted to extend rearward beyond the center of the spindle. UARA officials must approve all oil coolers and their installation.
HH. ENGINE EXHAUST SYSTEM 1. Stock cast iron manifolds permitted or headers permitted, no modifications permitted. 2. No stainless steel, stepped, 180 degree, or crossover equalizer tube systems permitted. 3. No scavenge lines and/or hoses permitted between the engine and exhaust system. 4. No spacers permitted between the cylinder head and the exhaust manifold. Only one (1) gasket, maximum .075-inch thickness, may be used between the cylinder head and exhaust manifold. 5. No thermal wrap permitted. 6. Exhaust headers are permitted. The exhaust headers must be manufactured using a steel primary tube size of 5/8 inches outside diameter, maximum 30 inches in length, with a collector tube size of three (3) inches outside diameter. 7. The header collector pipe cannot be reduced at any point between the primary tubes and the exhaust. Primary tubes must exit down and turn to the rear into the collector pipe. Those tubes that do not must be mounted parallel or angle down, in reference to the cylinder head, then turn down and turn to the rear into the collector pipe. The maximum thickness permitted on the header-mounting flange will be 3/8 inch. 8. Exhaust pipes from the exhaust header collector shall be no larger than four (4) inches outside diameter, but must be the same diameter for the engine length. The only method for reducing the interior diameter of the exhaust pipe between the ends of the header collector to the end of the exhaust pipe will be to reduce the exhaust pipe outside diameter. 9. The exhaust pipe may exit the collector pipe and turn either right or left and may join into one (1) pipe that must exit the car either beneath or on top of the frame rail. 10. When the two (2) exhaust pipes into one (1) system is used, all exhaust pipes must be routed beneath the transmission and exit to the outside of the car behind the driver and in front of the rear wheels only. The pipe may not extend outside of the body any further than one (1) inch. 11. Exhaust pipes must be made of steel, fastened to the header collector and to the frame in a secure manner. No “Midas” bends will be permitted. No coating of exhaust internal. External only is permitted. 12. Exhaust pipes may not be wrapped with thermal wrap from the exhaust collector rearward. No crossover pipes are permitted.
II. CLUTCH/FLYWHEEL 1. Multiple disc clutches are permitted. The disc clutch housing assembly or cover may be made from aluminum or steel. Limited to steel discs and pressure plates. 2. Multiple disc clutches must be a minimum of five and one half inches (5 ½”) outside diameter. 3. Any steel flywheel permitted. 4. Starter-flywheel ring gear size must remain the same size as a standard production ring gear for the type of engine being used. 5. Only a special production all-steel clutch housing permitted. 6. Bell housing must be the same design as an OEM production bell housing. 7. No weight reduction holes are permitted in the bell housing.
JJ. TRANSMISSION 1. Only standard production OEM type Muncie or T-10 manual type (4) speed transmissions will be permitted. Standard production OEM manual three (3) speed transmissions will be permitted. Special production transmissions will not be permitted. Top loader type transmissions will not be permitted. 2. Only cast iron, aluminum or magnesium trans-mission housings will be permitted. 3. Only OEM type steel, angle cut forward gears will be permitted. Square cut forward gears will not be permitted. 4. Holes in, or other modifications to transmission gears including, but not limited to narrowing of gears, that in the judgment of Track Officials, have been made with the primary intent of weight reduction will not be permitted. 5. All forward gears and reverse gear must be in working order, and they must be operational from inside the drivers compartment. 6. All transmissions must have the input shaft and its main drive gear constantly engaged. This assembly must be constantly engaged with the countershaft and its cluster and reverse gears. 7. Five (5) speed transmissions with gears removed will not be permitted. 8. Quick change transmissions will not be permitted. 9. Automatic or semi-automatic transmissions will not be permitted. 10. Fire resistant type shifter boots are recommended. 11. External oil pumps and oil coolers will not be permitted.
KK. DRIVESHAFT 1. Drive shaft and universals must be similar in design to standard production type. The drive shafts must be made of steel and can be either 2 3/4” inches or 3 inches in diameter. 2. All drive shafts must be painted white. 3. Two (2) 360 degree solid steel brackets, no less than two (2) inches wide and 1/4” inch thick, placed around the drive shaft and fastened to the cross member of the car are mandatory.
LL. REAR AXLE 1. The center of the rear end housing must be within 1/4 inch of the centerline of the tread width, front and rear. 2. Locked differentials permitted. 3. Quick-change center section optional. 4. Heavy-duty gears recommended. 5. Full floating rear axle mandatory, but must not alter tread width or general appearance. 6. Only steel axle housings and axles permitted. 7. No chambered rear axle housings permitted. Only metal drive plates are permitted and drive plates must be one (1) piece with a single internal spline. Grease fittings are not permitted on drive plates or axle caps. 8. No use of titanium or other light metals will be permitted. 9. Only the following type differentials will be permitted. 10. Detroit locker ratchet type limited slip differentials will be permitted. When this type is used, one (1) wheel, when jacked up, must turn freely by hand for one (1) full turn – 360 degrees. 11. Locked rear axle assemblies (solid spool) will be permitted. When jacked up, both rear wheels must rotate in the same direction and the same rotation distance at all times. One (1) wheel, when jacked up, must not rotate in any direction.
MM. FRAMES 1. No holes may be cut in frame rails or cross members to reduce weight. Any frame rejected by officials for poor workmanship will not be permitted to compete until corrections have been made. 2. All frame components must be made of steel and welded. 3. 1960 or older General Motors front frame sections are not permitted. 4. A tubular welded steel frame may be used except that the front sub-frame, beginning a minimum of 22 inches rearward of the centerline of the front spindles and extending forward in front of the radiator, must be a product of the automobile manufacturer. Front sub-frames may be inter-changed between manufacturers. Sub-frame must remain stock. The only modifications permitted will be for spring buckets and the bottom of the cross member which may cut for oil pan clearance. 5. Cross member may not be moved from original position. No offset frames. Side rails must be same size, constructed using a single tube minimum two (2) inches in width by three (3) inches in height and maximum three (3) inches by four (4) inches. Minimum wall thickness of not less than .120 inch. 6. Rocker panel must remain in standard location. Rear sub-frame rails must angle upward from the frame side rails, turn rearward extending across the rear axle housing, angle down and turn to the rear of the car and must be two (2) inches in width by three (3) inches in height with a mini-mum wall thickness of not less than .083 inch and must be of similar design and configuration to the standard rear kick-ups of the model car with allowable tolerances for tire, shock and suspension clearances. A protective bar, mini-mum 1 ½” inches in diameter and .083 wall thickness must extend below the rear frame section behind the fuel cell. With two (2) vertical uprights evenly spaced between the frame rails and attached to the rear cross member. Two (2) support bars, one (1) located on each corner, frame rails. 7. The distance from the outside edge of the frame rails left and right must be the same measured from the centerline of the tread width, front and rear. When measured from the outside edge of the left side frame rail to the outside edge of the left side frame rail to the outside edge of the right side rail, a minimum of 57 inches and a maxi-mum width of 64 inches must be maintained on all frames. No weight boxes may be added on the outside of the frame rails (see diagrams in rear of Rulebook). 8. An optional tubular front sub-frame may be used on any model car, but must be constructed by the following guidelines: a) A GM-type front steer tubular sub-frame must be constructed using two (2) inch wide by four (4) inch high steel tubing with a minimum .083 inch wall thick-ness. All front steer assemblies must maintain a dimension of 32 inches from the center of the right side tubing at any point from the side rail kick outs extending forward in front of the steering assembly. Front frame extensions using two (2) inch wide by three (3) inch high by minimum .083 inch wall thickness steel tubing may be welded to the end of the sub-frame but should angle down a maximum of 18 degrees. The front sub-frame must be attached in the center of the frame at the side rail kick outs and extend upward and forward 16 inches at a 25 degree angle. At this point a piece of tubing 27 inches long must be welded and extend straight forward in front of the front steering assembly. A distance of 25 inches must be maintained from the leading edge of the kick out to the centerline of the front cross member. The sub-frame cross member shall be constructed using two (2) inch high by three (3) inch wide steel tubing with a minimum .083 inch wall thickness. It is permissible to install a cross member center section using (3) pieces of one (10 inch by one (1) inch by .120 inch thickness steel tubing welded together with a 3/8 inch steel plate welded to each end. A 3/8 inch steel plate must be welded to the two ends of the cross member. A minimum of four (4) 3/8 inch bolt holes must be drilled for attaching the cross member together. This will permit easy removal of the engine oil pan. The mounting points for the lower A-frames shall be 14 ¼ inches at the rear and 8 ¾ inches on the front measured from the centerline of the sub-frame to centerline of the mounting hole. When measuring either the right or left side, the distance from the centerline of the bottom ball joint to the centerline of the sub-frame must be 26 inches.
b) A For-type rear steer tubular sub-frame must be constructed using two (2) inch wide by four (4) inch high steel tubing with a minimum .083 inch wall thick-ness. All rear steer assemblies must maintain a dimension of 32 inches from the center of the right side tubing at any point from the rear of the spring mount to the front of the sub-frame assembly. Front frame extensions using two (2) inch wide by three (3) inch high by minimum .083 inch wall thickness steel tubing may be welded to the end of the sub-frame but should angle down a maximum of 18 degrees. The front sub-frame must be attached in the center of the frame at the side rail kick outs and extend upward and forward 19 1/2 inches to the rear of the top spring mount plate at a 25 degree angle. The top spring mount plate at a 25 degree angle. The top spring mount plate shall extend forward 7 1/4 inches. At this point a piece of tubing 21 1/2 inches long must be welded at the front of the spring mount and angle down a maximum of 18 degrees. A distance of 21 5/8 inches must be maintained from the leading edge of the kick out to the centerline of the front cross member. The mounting points for the lower A-frames shall be eight (8) inches measured from the center of the sub-frame to the centerline of the mounting hole. When measuring either the right or left side, the distance from the centerline of the bottom ball joint to the centerline of the sub-frame must be 26 inches.
c) A minimum ground clearance of four (4) inches must be maintained on any part of the frame or body.
NN. SUSPENSION 1. No non-ferrous parts are permitted. 2. Front coil over springs must mount to stock appearing lower A-frames. 3. Strut bars will not be permitted for mounting for coil overs. 4. Rear coil overs must be mounted either inside or outside of the rear frame rails. Both springs must be mounted on the rear trailing arms and top of rear-end housing in the same location. 5. Front and rear coil springs must be heavy-duty steel. 6. The front coil spring mounts must be located on the lower control arm or top of rear-end housing in the same location. 7. It is permissible to install heavy-duty bolts (jacking bolts) for the transferring of weight and/or raising or lowering car. 8. No jacking bolts are permitted to extend through the frame rail tube. 9. Coil spring rubber inserts approved by track officials are permitted. 10. All coil springs must maintain a minimum diameter of 4 3/4 inches. 11. All upper and lower rear coil spring mounts must be located between the rear frame side rails. No jacking bolts are permitted to extend through the frame rails. 12. The rear coil spring lower mounts must be located on either the rear axle trailing arms or on top of the rear axle housing. 13. The rear coil spring upper mounts must be located and welded on the chassis directly above the lower mounts. 14. A two (2)-link truck arm type and length or a three (3)-link passenger car type suspension will be permitted. Pickup type trailing arms may be fabricated using a minimum two (2) inches by three (3) inches steel box tubing with a minimum wall thickness of .120 inch. Passenger car type trailing arms, 25 inches in length may be fabricated using a minimum 1 ¼ inch by two (2) inches steel box tubing with a minimum wall thickness of .120 inch. Both trailing arms must be the same length and be made in one (1) piece. Standard type rubber or metal bushings must be used. No adjustable rear trailing arms are permitted. The rear axle housing must be held in the center of the car side by side by a single tube pan hard bar. 15. Truck arms must be bushing or mona ball. No mix of bushing or mona ball. No mixing of bushing or mona ball sizes, both sides must be same. 16. Left and right trailing arms must be same length.
OO. SWAY BARS 1. The main body of the front sway bar must be made of steel. 2. The sway bar arms must be constructed of metal and may be splined for attaching to the main body. Heim joints may be used for attaching the sway bars to the lower arms. 3. The main body of the sway bar must be made of magnetic steel. 4. Sway bars will not be permitted on the rear suspension.
PP. SHOCK ABSORBERS 1. Heavy-duty shock absorbers may be used if similar to original equipment. 2. Shock absorbers must be available to all competitors. 3. A maximum of one (1) shock absorber per wheel is permitted. 4. Coil over shocks are permitted. 5. Schrader valves are permitted. 6. Single adjustable shocks allowed. 7. No Base valves. 8. Shock shaft diameter must not exceed .630 and the shaft must not have any sleeves or spacers that could limit travel of the shaft into or out of main body. 9. Shocks must be as manufactured by Shock Company. 10. Shock gas reservoir may not exceed 2.600 inches. 11. The only Penske allowed will be the 7500 series. 12. The only Ohlins allowed will be the STJ series 13. No heating pads or blankets allowed to heat shocks.
Note: Shock rules and guidelines may be altered and changed as needed.
QQ A-FRAMES 1. A-frames must have a stock appearance and made from magnetic steel. 2. Upper and lower A-frames may be altered for tire clearance. 3. Lower A-frames should be stock production for type front sub-frame being used and mounted in stock location. Both A-frames must be the same in length (no offsets permitted). Fabricated magnetic steel lower A-frames will be permitted, provided they maintain stock dimensions. 4. The distance from the centerline of the tread width, front to rear, to the mounting points must be the same. 5. Only one (1) lower A-frame mounting hole per side.
RR. SPINDLES, WHEEL BEARINGS AND HUBS 1. Heavy-duty, magnetic steel, spindles and wheel bearings are mandatory. 2. Spindles must be approves by UARA officials. 3. Offset spindles are not permitted. 4. Only 15: diameter 5 lug magnetic steel wheels with a 10” width are permitted. 5. All wheels must be the same width and offset (backspacing). 6. Solid heavy-duty magnetic steel lug studs and nuts must be used. 7. Bleeder valves are not permitted. 8. Tape will not be permitted on tires or wheels. 9. Solid wide five (5) pattern hubs are permitted. 10. Front and rear hubs must have the same dimensions on the right and left side. Offset hubs will not be permitted. 11. If spindle adjustment bushings are used, they must be welded in place.
SS. TREAD WIDTH AND WHEELBASE 1. Magnetic steel spacers are permitted to utilize maximum allowable tread width. Spacers, if used must be the same thickness left and right; however, front and rear do not have to agree. 2. Cars must not exceed the maximum allowable tread width of 64.5 inches, front and rear, measured at center of tire, zero toe-in at spindle height. 3. The tread width on the front and rear must be the same dimension at all times. 4. All cars must compete with a minimum of 105 - inch wheelbase. When measuring wheelbase, one (1) side measurement must be the allowable tolerance of 105- inch and cannot exceed 1/2 inches, plus or minus on the other side.
TT. HEIGHT REQUIREMENTS 1. All cars must maintain a minimum roof height, with driver, of no less than 48 inches. 2. Car height off ground and body height, including rake or degrees of body angle shall be determined by measuring height of car from a distance of 10 inches behind the top of the windshield on the roof center line. 3. Frame rail and sheet metal clearance with the driver in the car will be four (4) inches. Front spoiler clearance will be four (4) inches. 4. Exhaust pipe clearance will be three (3) inches. 5. No body height adjustments of any type will be permitted.
UU. STEERING COMPONENTS AND BRAKES 1. All cars must be equipped with a steel steering shaft. 2. Tie rods, drag links and components must be heavy duty and magnetic steel. 3. Heim joints will be allowed. 4. Interchangeable pitman arms are permitted. 5. Center-top of steering post must be padded with at least two (2) inches of resilient material. 6. A quick release metal coupling acceptable to track officials on the steering wheel is mandatory. The use of universal joints and collapsible steering section shaft must be acceptable to track officials. 7. Rack and pinion steering is not permitted. 8. Four piston calipers on the front only. This is an optional change. These are the new part #'s and the only calipers allowed. Only single piston disc brakes with stock type calipers and steel rotors will be allowed on rear. Brakes must be installed on all four (4) wheels. Floating brake calipers are not permitted. 9. Only magnetic cast steel brake rotors are permitted. Rotors must maintain a minimum thickness of ¾ inch and cannot be drilled or slotted. 10. Master cylinder(s) and reservoir(s) must be mounted on the engine side of firewall. 11. No brake proportioning valves will be permitted inside of the driver’s compartment. 12. No electronic brake actuators or speed sensors will be permitted. 13. All brake cooling component parts must be acceptable to track officials. 14. A maximum of two (2) scoops per brake; with a maximum three (3) inch flexible hose to brake may be used for brake cooling. 15. One fan or blower will be permitted to be used in the brake cooling hose per wheel. Fans or blowers must be mounted in such a way as to draw air to the brakes. Fans or blowers must be mounted to the frame rails and may be no lower than the bottom of the frame rail. 16. Liquid or gas cooling of the brakes is not permitted. 17. Headlight openings may be used to pick up air for brake cooling. 18. Brake fluid recirculation systems will not be permitted. Four Piston Calipers allowed: Wilwood Part #'s 120-7429,120-7476, 120-7430, 120-7431, 120-7477, 120-7432, 120-7792, 120-7794, 120-8282, 120-8283 Four (4) piston Forged Billet Superlite Caliper Note: Different #'s are for different sized pistons.
Outlaw 3000 series Four (4) piston Caliper
VV. FUEL SYSTEM 1. UARA officials will reject any fuel cells, containers or check valves, which appear to be dam-aged, defective, or do not function properly. 2. The use of fuel cells is mandatory. 3. Fuel cell vent pipe check valves are mandatory. No pressure system allowed. Any concealed pressure type containers, feed lines or actuating mechanism will not be permitted, even if operable. 4. The maximum fuel cell capacity, including filler spout and overflow shall be no less than 22 gallons. 5. No materials other than standard foam supplied by the fuel cell manufacturer are permitted to make the fuel cell meet 22 gallons. 6. Fuel cell must be encased in a container of not less than 22 gauge steel. Fuel cells must be fitted within the container so that the maximum capacity, including filler spout, will not exceed 22 gallons. 7. The 22-gallon capacity fuel cell container size shall be 33 inches x 17 inches x 9 ¼ inches (outside dimensions). 8. Fuel cell and fuel container may be fastened to the floor or in a recessed well. 9. Fuel cell and fuel cell container must be installed as far forward as possible in trunk compartment equal distance between the frame rails. 10. Fuel cell and container, installed in a recessed well, must be secured with steel tubing, not less than two (2) lengthwise and two (2) crosswise evenly spaced across the top. Tubing must be made of one (1) inch x one (1) inch square steel tuning bolted flat to the floor pan with no spacers. A reinforcement support frame must be constructed using one (1) inch by .065-inch thick square steel tube. The support frame must be constructed using two (2) tubes that are welded to and extend from the left side to the right side frame rails. Three (3) tubes must be equally spaced across the recessed well. 11. When mounting fuel cell through trunk floor, an additional container of minimum 22-gauge steel must be welded solid to floor of trunk for installation of fuel cell container. One (1) inch square steel tubing reinforcement frame must be welded to the floor pan from frame rail to frame rail. The bottom of the fuel cell container must have a minimum ground clearance of eight (8) inches. 12. A protective bar, minimum 1-1/2 inches in diameter .083-inch wall thickness must extend below the rear frame section behind the fuel cell. This protective bar must be as wide as the rear frame rails and extend as low as the bottom of the fuel support bars, one (1) located on each corner, must angle upwards and be welded to the rear frame rails. 13. Rear firewall thickness must be at least 22-gauge steel. 14. Dry coupling fuel connectors are eligible. 15. Dry couplings must be mounted at an angle on the left rear quarter panel (left fill only). Mounting must be as near to the top of the panel and as far back as possible. 16. Check valve filler neck inside diameter shall not exceed 2 1/8 inches and 2 ¼ inches outside diameter. 17. Filler cap must be located in the left quarter panel at top of fender line. 18. The maximum filler spout size is four (4) inches x eight (8) inches x eighteen (18) inches. 19. A minimum of six (6) inches of flex hose shall be used between end of filler spout and fuel cell neck. 20. Fuel cell check valve vent pipe neck inside diameter shall not exceed one (1) inch maximum. The fuel cell vent flexible hose shall have a maximum inside diameter of 1-¼ inches and maximum length of 70 inches. 21. A screen cap with a maximum diameter of 1-¼ inches may be place over the vent pipe. 22. One, one (1) inch maximum vent outside of body at left rear light. A vent flap is highly recommended 23. No electrical devices are permitted in trunk compartment. 24. Either (both) right or left side pickup in fuel cell may be used. 25. Only one (1) fuel line with maximum inside diameter of 1/2 inch is permitted from fuel cell to fuel pump. 26. All fuel lines are subject to approval by track officials. 27. Fuel lines from cell to carburetor may be relocated. When the fuel line funs through the right side of driver’s compartment, it must be enclosed in a steel tube and as close to floor pan as possible. 28. No additional lines may be used on fuel system. Extra fuel lines or fuel cells concealed or otherwise are not permitted. 29. Electric fuel pumps are not permitted. 30. Water-cooling of the fuel pump is not permitted. 31. Only OEM type manual fuel pump permitted. Fuel pump must mount in stock location. 32. Only two (2) approved 11-gallon fuel cans permitted in pits for refueling. Fuel filler cans must be painted red.
WW. ROLL BARS 1. Round steel tubing 1 3/4 inch x .090-inch minimum thickness seamless rollover bars are mandatory for basic roll cage. Aluminum and/or other soft metals are not permitted. Roll bar connections must be welded. 2. Roll bar installation and workmanship must be acceptable to track officials. All roll bars in driver’s reach must be padded. 3. All cars required having the basic roll cage configuration as shown in diagram #5. The main roll bar (#1 in diagram #5) must be welded on the top of both right and left side frame rails then come upward above the driver’s head across the inside roof panel. 4. The main roll bar (#1) must also be braced with one (1) diagonal bar (#5) and two horizontal bars (#6). The diagonal bar must begin at the upper left behind the driver’s head and end at lower right of the main roll bar. 5. The horizontal bars (#6) must be welded inside the main roll bar (#1) with the upper bar (#7) at the seat height and the lower bar (#6) just above drive shaft tunnel. Extending forward at the outer edges of the roof panel from the main cage is roof bar (#3). The roof bar must follow the contour of the windshield across the front and be within four (4) inches of the top of the wind-shield. The roof bar must also have a bar (#4) welded from the main roll bar to the roof bar on the car’s centerline. 6. The roof bar legs (#2 A & B) must be welded to the roof bar near the upper corners of the windshield then extend down along the A-posts to the cowl then straight down to the top of the frame side rails. An additional dash bar (#8) must be welded beneath the dash across the two (2) front bar legs (#2 A & B). 7. Rear support bars (#13 A & B) must be connected with a bar (#14) that adds extra protection to the trunk area in addition to being welded to the rear support bars (#13 A & B). 8. Bar (#14) must have a minimum of three (3) vertical supports of 1 3/4 inch x .083 inch minimum seamless round tubing (#15) connecting it to the rear frame cross member. The main roll cage bar (#1) and the front roll bar legs (#2 A & B) must be connected with four (4) horizontal door bars (#9 A & B) on both left and right sides. The top door bar on each side must have a vertical vent window bar (#10 A & B) welded upward and connecting to the front roll bar legs (#2 A & B). The top three (3) door bars must be convex in shape. The door bars must be the same length and have equal amount of convex in both right and left sides. The door bars must have six (6) vertical studs per side of 1 3/4 inch x .083 inch thick seamless round tubing equally spaced. 9. Two (2) angular studs (#11 A & B) must be attached from next to the bottom bar to the frame rail. A roof support bar (#12) must also extend from the right corner of the roof bar down to the transmission cross member. All joints and connections must have gusset plates for reinforcements.
XX. WHEELS/TIRES 1. Only 15-inch diameter steel wheels with a 10-inch rim width and a reinforced center are permitted. 2. All wheels must be the same width and offset. Solid heavy-duty steel lug bolts and nuts must be used. 3. Bleeder valves are not permitted. 4. All cars qualified for an UARA Late Model All-Star race will be required to race on the same tires used for qualifying. 5. Only one jack and two-power wrench may be used for any tire change. 6. Should identification numbers or serial numbers be defaced on any tire, this tire will be ruled ineligible for competition. 7. Only UARA plated approved tires purchased at UARA events are permitted. 8. Tires may only be purchased for race day on race day. Tires purchased for non-race day sessions or tires from last season will not be permitted on race day. 9. Each competitor who has a car eligible and ready for competition may purchase up to tire limit for race. UARA officials will impound said tires. Cars must attempt to qualify and compete. What constitutes a qualifying attempt shall be left to the discretion of the series officials. If the car does not attempt to qualify and compete, the tires will be confiscated and considered NEW for the next event. 10. Only tires purchased for a certain car may be used. 11. Tire number “limits” will be announced one (1) week prior to the event. 12. Any competitor caught using non-approved tires or purchasing more tires than permitted for the race will be disqualified and may be subject to suspension and loss of points. 13. After each event, at Series official’s discretion, certain tires may be confiscated and sent to lab for testing and evaluation. 14. Any team caught altering tires in any way (defacing, soaking, etc.) will have their tires and wheels confiscated and may face disqualification.
Shoot for the moon, even if you miss, you will land among the STARS |
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