RULES SPECIFIC TO PURE STREET SERIES

(All vehicles must comply with General Rules, except where exempted in this section)

A. ELIGIBLE MODELS

      1.     Must be American made car, no station wagons, SUVs, or convertibles.

      2.     Minimum wheelbase of 108 inches.

B. ENGINE

      1.     Engine must be stock for that make/model/year and be mounted in stock locations. Maximum of 360 cubic inches displacement.

      2.     Measurement from steering box adjustment bolt to No. 1 spark plug may not exceed 12.5 inches.

      3.     Heads must be stock and retain stock size valves per manufacturer specifications. Valve size and cc mus be correct for head number. Casting numbers of 993, 882, 441, 416, 450, 193, and 601 will be allowed. Any other casting numbers must be approved by track tech personnel.

      4.     Approved carburetor will be box stock Holley 500 CFM 4412 two-barrel with round hole. Top and bottom of carburetor will be checked for 1 11/16 throttle bore and 1 3/8 venturi. Carburetor spacer may not exceed one (1) inch in thickness.  Track reserves the right to confiscate feature winner's carburetor and provide replacement.

      5.     No cold air boxes or air induction devices will be allowed. Breathers may use top and bottom covers only.

      6.     Any size flat tappet camshaft allowed. Lifters must be specific to engine and manufacturer. No roller cams will be permitted, but roller rockers will be allowed in the interest of prolonging the life of the valve train.

      7.     Steel, stock length rods will be required. I-beam or H-beam rods will be acceptable. Rods may not be altered in any way. Two-valve relief cast pistons will be allowed.

      8.     Intake manifold must be stock cast iron "quadra-jet" four-barrel intake. Intake must have EGR mounting plate.

      9.     Headers will be permitted. Exhaust system must extend past driver. (See muffler and noise requirement under General Rules).

    10.     Aftermarket radiator will be allowed. Cars must have a minimum one gallon working overflow can in engine compartment.

    11.     Battery must be secured. Must be in covered box if located inside driver's compartment. All cars must have master kill switch.

    12.     No 400 cubic inch blocks will be allowed, regardless of total displacement.

    13.     Engine and all components must be stock as left showroom floor except as allowed in other rules.

C. DRIVE TRAIN

      1.     Transmission must be stock for vehicle's make, model, and year. May be three-speed, four-speed, or automatic. Automatics must have working torque converter. All cars must have working reverse gear.

      2.     Stock, steel flywheel, stock clutch (10 1/2 inch minimum diameter), and stock pressure plate only will be allowed. No aftermarket or made-for-racing flywheels, clutches, or pressure plates will be allowed. Aftermarket clutch pedal and throw-out bearing will be allowed.

      3.     Driveshafts must be painted white and must have safety hoop. No aluminum driveshafts will be allowed.

      4.     Ford rear end will be allowed. No floater rear ends will be allowed.

D. BRAKES

      1.     All cars must have working brakes on front and rear.

      2.     Aftermarket “single cylinder” master cylinder and brake pedal are allowed. No adjustment devices will be allowed on master cylinder or pedal.

      3.     Stock calipers will be required front and rear.

      4.     Proportioning valve will be permitted in brake line beside driver's seat.

E. WEIGHT

      1.     Minimum weight will be 3,200 pounds after race, with driver in car. Minimum weight will be 3,000 pounds for full frame cars (stock chassis - no modifications).

F. CHASSIS, BODY, INTERIOR

      1.     Suspension must be stock for that make/model/hear with no modifications, with the exception of racing shocks, racing springs, and hide-away adjustable spacers, which will be allowed. Shocks and springs must be in stock location. Caster and/or camber may be adjusted. No weight jacks will be allowed. Full frame cars (GM metric chassis) will be allowed to use stock configured drop spindles. Aftermarket adjuster sleeves and outer tie rods will be allowed. Sway bar must not exceed 1.25 inches in diameter. SHOCK CLAIM RULE: Any driver participating in feature race may claim shocks of any other competitor finishing in front of them in feature race by posting claim fee of $60 per shock in cash to competition director at scale immediate following feature race.

      2.     Bumpers must be capped or rounded to prevent hooking other cars.

      3.     Cars must be stock. Front and rear clips may be tied together for strength. Rear clips may be underslung for strength. No holes will be permitted in hoods except for pins. Body sheet metal must be kept in place at all times. Stock front and rear firewalls and rear inner fender wells must remain intact. Floor pan may be removed on passenger side of car if driver's compartment is isolated.

      4.     Hood and trunk must be pinned closed. Trunk area must be completely enclosed. All doors must be bolted or welded shut. Door glass openings must remain open to stock size on both sides. Hood scoops must not create cold air induction to breather.

      5.     All glass, trim, and upholstery must be removed.

      6.     Full roll cage is required. Driver protection bars are required. Aluminum made-for-racing seat is required. Seat must be securely mounted to the roll cage. Four-point racing harness with lap and shoulder straps properly secured is required. Window net is required.

      7.     Minimum frame height will be 3 inches measured from ground to lowest point on frame.

      8.     Front of rear leaf springs must be mounted in stock locations with factory front spring mounts.  Shackles may be used to adjust cross weight, but no slider blocks will be permitted.

G. WHEELS AND TIRES

      1.     Steel wheels are required. Maximum with 8 inches. No wide five wheels will be permitted.

      2.     Allowable tire will be Hoosier F40 or F50 scuff. Racing tires must be purchased from official track supplier.

H. ENGINE PROTEST RULES

      1.     Protest fee will be $500.

      2.     Only drivers taking part in the feature race that evening are eligible to file a protest.  Drivers may only protest a car tht finished in front of them in the feature race.

      3.     Any driver wishing to protest another competitor's engine must present the $500 protest fee in cash in competition director prior to the start of the feature race.

      4.     Track officials will visually inspect rods, inspect carburetor, check valve size, CC the heads, check for porting and polishing, check bore and stroke, and check for flat top pistons.

      5.     If the inspection reveals the engine to be legal, the protested car's driver will receive $400 of the protest fee, with the track receiving the remaining $100.

         6.       If the inspection reveals the engine to be legal, the protested car's driver will receive $400 of the protest fee, with the track receiving the remaining $100.

      7.     If the inspection reveals the engine not to be legal, the protested driver will be disqualified for the evening, will receive no money and/or points for the evening, and will be subject to suspension.

I. ENGINE CLAIM RULES

      1.     Any engine may be claimed with presentation of $2,500 cash claim fee by the driver of any car participating in the feature race as outlined in General Rules section. Both car of claimant and car of engine being claimed must finish the feature race.

      2.     Driver of engine claimed will be allowed to retain carburetor, flywheel and torque converter, exhaust system, starter, fuel pump, and power steering unit.

      3.     Driver of engine being claimed must prepare engine to be removed.

      4.     Driver of engine being claimed will be given the option of purchasing the claimant’s engine for $500.

      5.     Track management reserves the right to claim any engine.

      6.     A driver will be limited to one (1) claim per racing event.

      7.     A driver may claim any other competitor’s engine only once per season.