2011 Hobby Stock Rules

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2011 RULES FOR HOBBY STOCK

All underlined words are changes made from previous years rules.

1. Any 1960 or newer U.S. Manufactured full body passenger car. No 4-wheel drives, station wagons,Firebirds, Camaros, or convertibles.

2. Minimum wheelbase allowed is 107.5 inches (zero tolerance). Unibody cars may be tied together.(Maximum 2x2 square tubing.) Tow hooks on front and rear of car capable of lifting the car aremandatory.

3. Full perimeter 4 post roll cages with X brace in rear securely welded to frame must be used. Threehorizontal door bars on each side mandatory (four recommended). Drivers side door bars must betied together with vertical bars and attached to frame in at least two places not including the cornerposts. One cross bar in top halo of roll cage mandatory. Minimum .095 tubing at least 1.667 outsidedia. for cages & door bars. Petty bar will be allowed. One loop in front of radiator of 1 roundtube may be used between front frame horns. One vertical vent bar (sagger bar) from the frontcorner of halo to driver door bar is manditory (1-1/4 barminimum). Passengers side bar of the sametype is recommended.

4. Car body and frames must be completely stock. No cutting, chopping, or shortening allowed, exceptfor placement of roll cage. Wheel openings may be trimmed for reasonable tire clearance. The steelstock unaltered floor pan, firewalls, trunk lid, and wheel wells must be retained with metal. Trunkfloor must be removed above rear end housing & between frame rails (except on unibody cars). A

steel or aluminum fire wall must be in place to separate the trunk from the interior of the car and itmust remain the in the OEM position. When using a newer style front wheel drive car body the floorpan must remain OEM for that frame and in OEM location. May use 1988-1996 Cutlass, Grand Prix,Lumina, Regal or Monte Carlo body on 1978-1987 GM 108-inch wheelbase full frame. Frame mustmatch body GM to GM, Ford to Ford, Chrysler to Chrysler, and wheelbase to wheelbase.Exception is: 1980 or newer Ford unibody may be installed on Ford full frame, and shortened tominimum 107.5-inch wheelbase. Rear of frame behind rear tires, from a point no further forward thanone inch behind factory seam, may be replaced in OEM location with two-inch by three-inch steeltubing with .095-inch wall thickness. Factory seam must remain visible. Unibody must tie rear frameto front frame. Frame may be X braced. No Camaros, Firebirds, or Mustangs. Hoods may begutted. Front inner fenders may be removed. All stock windows must be left open. Opera windowmay be enclosed with Lexan if desired. Hood scoops are allowed but must be sealed off to the

outside so it cannot draw air through them or allow fluids to spray out of them. Front windshieldscreen and three vertical 3/8 minimum bars required. Dash must not extend more than 24 backfrom the center of the top edge of the fire wall. Fire wall must remain in stock location. Rear of dashcannot be higher than the front except for cowl in front of driver. No other interior enclosures orcovers allowed. After market nose pieces and tail pieces are allowed.

5. All glass, plastic, upholstery, lights, mirrors, molding & chrome removed.6. All doors must be welded shut. Hoods & trunk lids must be securely fastened with pins, no bolts.

Rub rails no bigger than 1x 1 tubing or x 2 flat steel may be attached to body from fender well tofender well, flush with body with smooth edges and painted to match car.

7. Bumpers must be in stock location. Hydraulic bumpers must be welded to brackets and rackets

Track (319) 835-5523Office (319) 528-4301

Lee County Speedway OfficeP.O. Box 226

Denmark, IA 52624www.leecountyspeedway.com


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welded to frame. Hydraulic bumpers should be drilled to release oil. Tube type bumpers are allowedon the front of the car, behind aftermarket nose pieces only. Cars that do not have an aftermarketnose piece must run a stock type bumper on the front of the car.All cars must have tow hooks orchain loops on both ends of the car strong enough to hold the weight of the car when being towed offthe track.

8. All cars must have an aluminum racing seat. Seat must be securely fastened to roll cage cross

member and frame.9. Stock gas tank must be removed. Fuel cell required. Fuel Cell vents, including cap vent, must have

check valves. If fuel cell does not have aircraft style positive seal filler neck/cap system a flapper,spring or ball type filler rollover valve is required. Fuel cell must be encased in an approved steel canand must be securely mounted. Fuel lines through drivers compartment must be in steel pipe orconduit. No vented gas caps. Check valves are recommended in all vent lines.

10.Drive shaft must be painted white! An approved safety loop required and must be constructed ofx 2 steel strap no more than 6 behind front universal joint. Drive shaft must be made of steel.

11. Battery must be relocated and securely/safely mounted. If in drivers compartment it must beenclosed in a box. If located in truck area it must be located between and above the frame rails butdoes not have to be in an enclosed box. Positive post must be covered with plastic or rubber ineither location. Only one 12 volt battery allowed in car.

12. No computers of any kind allowed on car.13. Weights must be painted white with car number on them. All weights, regardless of size must be

secured inside trunk or between the frame rails with a minimum of two bolts. No weight allowed indrivers compartment. No weight can be bolted to bumpers. No sandbags or loose ballast permitted.

14. Spoilers, wings, skirts, or anything that alters the stock appearance is not allowed.15. Car must be clearly marked with contrasting number 18 high & 3 stripe width on both sides of

the car as well as on the roof.

DRIVERS EQUIPMENT

1. An approved helmet with a Snell SA 2000 or SA 2005 rating or SFI 31.1/2005 approved & full firesuits required. Competition 5-point shoulder harness & lap belts are mandatory & must be securely

fastened to the frame or roll cage. Fire extinguisher recommended.2. Fire resistant gloves are required & fire resistant shoes recommended. A 16x20 mesh or ribbon

type window net is required. No string window nets or sprint car type window nets allowed. Latchmust be located at the top of the window. Neck braces required. Kill switch clearly marked ON &OFF recommended. Window net must be fasted to the roll cage on top and bottom of the net, NOTto the door panel or roof of the car.

3. Roll bar padding is required in drivers compartment. The 3 halo bars, the cross bar in the halo, andany lower leg protection bars must be covered in roll bar padding.

SUSPENSION - TRANSMISSION - REAR END

1. All springs must be stock type for that make and model. Coils for coil spring cars, leaf for leaf spring

cars.Coil Springs One steel spring per wheel, mounted on top of and centered over the axle tube of therear-end housing in OEM location. All springs must be minimum 4 inches O.D. and nonprogressive. Rubber or Nylon control arm bushings only. Center of rear lower control arm bolt holemust be 2.25 2.5 inches from bottom of housing with only one mounting hole. No multi-holed lowercontrol arm brackets. Lower control arms must be the same length measured from bolt hole to bolthole. No sway bars, panard bars, spring spacers, chains or cables allowed. Spring Rubbers areallowed on rear only.Leaf Springs Leaf springs must be steel and must be mounted the same on both sides. One set ofleaf springs per side. No mono leafs. Leaf springs can use a two holed spring shackle in the rear of


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the spring. No sliders. No adjustable lowering blocks.2. All 4 brakes must lock up. No brake shut-off devices allowed. No brake bias proportioning valves,

other than the factory front to rear proportioning valve, are allowed.3. Full floating rear ends and safety hubs are allowed. 9 Ford allowed, but must be mounted like stock

rear end for that make and model following the guidelines listed above. Disc brakes allowed onrear with Ford 9 but must use steel O.E.M. type brake calipers. No aftermarket brake calipers

allowed. Aftermarket brake pedal assemblies are allowed. Posi-traction or locked rear ends areallowed.

4. Transmissions: One 2 inspection hole, that is easily accessible, is required on all bell housings.Manual Transmissionsmust be OEM three or four speeds with a minimum 10.5 steel/ organicsingle disc-type clutch and steel pressure plate assembly inside an explosion-proof steel bell-housing

minimum 270 degrees around top of clutch and flywheel area. No lightweight bell housings. Steelflywheels only.Automatic Transmissions must be OEM with OEM pump and original bell-housings. Minimum 10diameter torque converter containing a minimum of three quarts of fluid. Torque converter must havea minimum .125 drain plug. Must have approved scatter shield constructed of minimum .125 x 3steel strap, 270 degrees around flex plate. Flex plate must be full, unaltered OEM or OEMreplacement. No transmission oil coolers located in the driver's compartment.

5. One steel, non adjustable shock per wheel in stock location using stock mounts. Lower rear shockmount location is 4.5 inches from the bottom of housing to center of bolt hole and centered side toside on the lower control arm bracket. Bracket may only have one hole for shock mount. Maximumtube diameter is 1.999. No heim ends, coil over, air or remote reservoir shocks allowed. No screw

jacks or weight jacks allowed. OEM upper A-frame may be replaced using aftermarket upper A-frame (steel or aluminum cross shaft allowed), must display IMCA approved decal on top of reartube of A-frame.

6. No quick steer boxes allowed.7. Stock OEM type steering pumps only. No aluminum bodied aftermarket power steering pumps

allowed. Remote reservoir pumps are okay but pump must be steel.

TIRES AND WHEELS

1. Tires must be D.O.T. stock passenger car tires not exceeding 10" wide at any point on the tire. Norecaps. No all terrain tires allowed. No shaving or grooving allowed. Tire may not extend outside thebody of the car past the centerline of the tread at the top of the tire.

2. Only steel wheels allowed. Maximum of 8 in width. No bead locking devices allowed.3. Right front wheel to be reinforced or spoke wheel, with larger stud.1 diameter lug nuts are required.

ENGINE

1. Engine must be visibly stock and maintain stock or approved stock replacement components (GM toGM, Ford to Ford, etc.) OEM passenger vehicle production blocks only. No aftermarket blocks. NoGM bowtie, Ford SVO or Chrystler W blocks. Engine must remain in stock location. Center casting

line of the fuel pump must be 1 ahead of the factory weld where the frame rail meets the crossmember. No roller cams. No roller lifters. All cars must have operable starter. OEM type harmonicbalancers only. Wet sump oiling system only. No serpentine belts allowed.

2. One two bbl. O.E.M. external stock appearing carburetor only, no Holleys and no dual feed carbs.Carburetor must match engine, ford to ford and GM to GM. Venturi may not exceed 1-3/8 and mustbe round. No oval, egg-shaped, notched, or elongated venturies allowed. Maximum of a 1 inchspacer plate allowed under the carburetor. Carburetor maybe claimed for $50. If claim denied, therewill be loss of points and money for that nights racing. An approved adapter plate is allowed. 2-barrel or 4-barrel cast iron intake manifolds only, (no internal build up allowed and stock air cleanermount must be retained).


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3. Cast iron intake and exhaust manifolds only. No center dump exhaust manifolds. Exhaust must godown and back and exit past the firewall under the car. Exhaust may not be directed out the side ofthe race car. Mufflers are NOT required.

4. No aluminum heads allowed.5. No Ignition control boxes. OEM ignition only. All ignition rotors, caps, coils and modules must

remain OEM-appearing. NO MSD boxes/ignition.

A protest rule has been implemented for 2010. See Protest Procedure Sheet attached.

CLAIMING RULES AND PROCEDURES

1. Cost of claim: $325 for engine - $25 for wrecker. $350 Total or $100 Exchange - $50 for wrecker,$50 to claimed car's owner. (Sellers choice)

2. Claim does not include - (1) Flywheel (2) Clutch (3) Pressure plate (4) Bell housing (5) Exhaustmanifold (6) Carburetor (7) Starter (8) Motor mounts (9) Sending units & switches for oil pressure andwater temperature (10) Fan and pulleys (11) Clutch ball (12) Clutch arm (13) Throw out bearing (14)Dip stick (15) Water pump (16) Fuel pump (17) Distributor (18) Plug wires.

3. First four position finishers must report directly to claim area and are subject to engine claim by anyother driver finishing fifth on back in the feature. Any driver lapped by the fourth place car is noteligible to claim. Driver allowed one claim ONLY per event, regardless of outcome of that claim. Incase of multiple claims on same engine, engine will to go to qualified claiming driver finishing farthestback.

4. Driver making claim must drive his racecar immediately after finish of feature, under its own power,directly to claiming area. Only driver and officials allowed in claiming area. Claim must be madewithin five minutes of checkered flag.

5. Claims must be made immediately following feature race, and claimed engine must be completelyremoved within one (1) hour after the last checkered flag falls.

6. Claims must be made to track official, and $350 cash must accompany intention to claim.7. Only driver may claim engine & only driver may agree to sell or refuse to sell engine. First sell or no

sell by driver being claimed is binding.8. Promoter may claim any engine finishing in the top ten immediately following the feature. Driver

claim takes precedence over promoter claim.9. Any driver found to be claiming an engine for anyone other than himself will lose all track points for

the season and will be suspended for 30 calendar days or until $500 fine is paid to the Speedway.10. All claimed engines must be removed from the car at the track; buyer must examine engine before

removal - once removal is started, sale is final.11. No driver may claim unless he has competed at the track the two previous events. (Claim is in effect

on opening night for all eligible drivers. Driver must have been at track on opening night to be eligibleto claim 2nd night of season.)

12. No one driver may claim any other one driver more than once during current calendar year or claimmore than two engines during the calendar year.

13. Refusal to sell will result in disqualification; loss of money and trophy won that night, all track points

for the season and a $500 fine to be paid before being allowed to race remainder of year.14. Drivers are to be held accountable for any sabotage discovered while pulling the engine. Any

sabotage discovered will result in the driver losing all track points and being assessed a $500 fine.The claim may be disallowed and the money returned to the claimer.

15. Any driver using any device intended to deceive other drivers, including, but not limited to a device tosquirt oil into or onto the engine to give the outward appearance of a blown engine, will forfeit allmoney earned that night. Driver will be subject to fine equal to amount of prize money forfeited.

REVISED: December 27, 2010

Documents

2011 Hobby Stock Rules