Rules

LINDA'S SPEEDWAY
2008 FOUR CYLINDER REAR WHEEL DRIVE THUNDER CAR SPECIFICATIONS

ANY FOUR CYLINDER PISTON TYPE ENGINE REAR WHEEL DRIVE CAR
NO CONVERTIBLES, PICKUPS, FOUR WHEEL DRIVES, OR JEEP TYPE VEHICLES ALLOWED.

MAXIMUM STOCK WHEEL BASE 105". Minimum weight 2300 lb.., with driver.

ENGINE AND TRANSMISSION: The engine must be strictly stock for that make and model of car and in its original mounts.One solid motor mount allowed. One Maximum 500 CFM Holley carb only. No carburetor adapters or spacers unless originally equipped. Maximum .040 overbore. No dual overhead cam engines. Maximum cam lift .480. No adjustable cam sprocket. No ported, polished or deburred heads. No engine changing. No fuel injection of any kind. Electric fuel pumps allowed. Electric fuel pump must be mounted under the hood and it must be connected to an oil pressure safety switch. No headers of any kind (O.E.M. or after market). Stock exhaust only. Muffler must be removed. Exhaust must extend outside of body or past drivers compartment, if run through drivers compartment it must be shielded. Stock drive train only. Radiator and oil coolers must be mounted in stock location. ENGINE SPECS: FORD 2.3 CHEVY 2.5 CHRYSLER 2.5

REAR ENDS: Stock rear and housing. Rears may have spider gears welded.
No spools of any kind allowed.

TRANSMISSION: Stock transmission and clutch. Stock flywheel.

SUSPENSION: No modifying of the suspension. Suspension parts must remain absolutely stock for that year, make, and model of car. No spacers, lumber, or chains, etc. may be used to alter suspension of that car.Racing springs will be permitted for. No steel plates to reinforce body or chassis. No cut springs. Right and left springs must be the same. No adjustable struts.

TIRES AND WHEELS: Tires must be stock passenger car tires only. Regrooving Allowed. No truck tires, snow tires, recaps, racing, or trick gumball tires of any kind. 7" width and 13" or 14" diameter steel wheels only. Racing wheels allowed or if using stock wheels you must reinforce both right side wheels to prevent their loss. No aluminum, mag, diecast or trick wheels allowed. 60 or 70 series DOT tires. No screws allowed on outside.

BRAKES: Brakes must be in good working order at all times . Stock brake system must be used for make and model of car being used. No after market inline proportioning valves allowed. May disconnect right front brake.

ROLL CAGE AND BRACING: Roll cage must extend 4" above the drivers head. Roll cage must be 1 1/2" OD minimum tubing, minimum .095 wall tubing must be used. Roll cage must be securely welded to frame or plate welded to floorboards at rocker panel on 6"x 6" plate minimum. Sub frame may be tied together. Roll cage must extend from windshield to rear of drivers compartment with a loop at front and rear. A 1" pipe must be welded to roll cage in center of windshield opening. Four horizontal door bars minimum on drivers door - three horizontal door bars minimum on passenger door. Door bars must be tied together with a minimum of three evenly spaced bars. Door bars and bracing must be a minimum of 1 1/2" .095 tubing. Drivers area must have approved padding on roll cage and door bars. Two bars may be added from dash area to front in line with frame but stop 6" from rear of bumper and two bars from back of roll cage to rear of car not attached to bumper( must be inside of body). Racing seat is mandatory and must be securely attached to roll cage in stock location. Must be high back seat or must have head rest. Seat belts must be securely attached to roll cage, if bolted minimum 3/8" bolt required. One non visible bar may be used to protect radiator, it must be mounted between bumper and hood, not to protrude past bumper, 1 1/2" tubing max.. No sharp edges on bumpers at any time. Bumpers may not be re-enforced from behind. Bumpers must be stock width and height and be mounted in stock location. Front and rear bumpers must have a bar attached to the ends that goes back into the body or attached to the frame.Can not protrude past outside edge of tires. No external rubrails allowed.We highly recommend that you do not use filler of any kind in the body or frame of car.

FUEL CELL(GAS TANK): Fuel cell mandatory. Must be securely mounted in truck area. If plastic fuel cell is used it must be completely enclosed with metal. Steel fuel line or flex steel may be run inside car, but must be enclosed in rubber and sealed at both ends.Fuel line check valve is highly mandatory.

INTERIORS: All interior glass and all flammable parts must be removed. The stock steel unaltered floorpan, firewalls, trunk, trunk floor and wheel wells must be retained. No built up interiors of any kind. No mirrors allowed. All holes in driver's compartment must be filled in with metal. Windshield area must have heavy screen. No windshields allowed. No plexiglass anywhere on body.

BODIES: Cars must remain strictly stock. After market nose and rear bumper covers allowed. No interchanging, no cutting, no chopping, channeling or shortening allowed. No holes in the hood. Hood must be kept in place at all times. Body sheet metal must be in place at start of the race. All glass and lights must be removed. All doors must be welded or bolted shut. No skirting or spoilers of any kind allowed. Stock sheet metal only. If front and rear bumper covers are used, a visible chain or cable must be securely fastened to bumper for easy wrecker hook up.

MISCELLANEOUS: Battery may be moved inside of car, but it must be covered and securely fastened with a metal holdown over the battery. No add on weight of any kind is permitted at any time. Any loss of a wheel requires that you immediately leave the track. Rupture of gas tank and/or loss of gas receives immediate black flag. Car must be painted in a respectable manner. Car numbers must be at least 18" high on both sides of the car and on roof.

FUEL: No racing fuel, alcohol or any additives allowed! Pump gas only - 94 octane maximum. Fuel testing may be done at the discretion of the track technical director. Any fuel in question after initial test will be further analyzed by an outside lab and your payoff will be held until the results of the testing are final. If fuel is found to be legal, you will be paid at the next event. If fuel is found to be illegal, you will forfeit all moneys earned for that event and lose all accumulated points for the season. You will also be required to pay a fine that will be equal to the cost of fuel analysis(approximately $200.00) before driver may return to competition.

SAFETY: Approved fire suit is required. Racing gloves and neck collars must be worn at all times, including warm-ups. Window nets or arm restraints are mandatory. Snell 95 helmet or newer with approved face shield. Approved 3" safety belts and shoulder harness required and must be in good condition. Shoulder belts must be supported at shoulder height by a bar in roll cage. Fire extinguisher mandatory.

NOTE: THE INTENT OF THESE RULES ARE TO KEEP THE COST OF THIS CLASS IN LINE. THIS CLASS IS DESIGNED TO BE INEXPENSIVE AND FOR BEGINNERS. NOTE: ANYTHING NOT COVERED IN THESE SPECIFICATIONS WILL BE TO THE DISCRETION OF THE TRACK TECHNICAL PERSONNEL WITHOUT RECOURSE FROM ANY DRIVER OR OWNER. ALL SPECIFICATIONS ARE SUBJECT TO REVISION.
LINDA'S SPEEDWAY
200 Silvertown Rd. Jonestown, Pa 17038
(717)865-5330