PGARA RULE BOOK

Hornets Rules / Mini Stock Rules / Street Stock Rules / Hit To Pass Rules / 4 Cylinder Hit to Pass Rules / Printable version of rule book

2011 Street Stock Rules

Rule changes for 2011 will be in bold blue font

No radios allowed in any classes.
All Cars must be stock in every aspect with the following exceptions.
 When the word "stock" is used it means as it came from the factory for the particular year and model in question. This also includes replacement parts by part number. Any questions on parts need to be directed to the board of directors.

Chassis:

1. Any North American built, stock production passenger car, or pick-up truck. No station wagons, convertibles, or Corvettes. 1982 and newer Camaros or Firebirds not permitted.
2. 70-81 Camaro and Firebird allowed with stock front clip, unibody and rear suspension and body complete only.
3. No four wheel drive cars permitted.
4. No four wheel independent suspensions permitted.
5. No excessive rear movement of the stock body permitted. Only a max. of 1" from the stock body mounts tolerated.
6. Any steel body may be run over any chassis of same make. No distortion of the body is permitted to fit the chassis. Only the movement of the wheel openings may be moved to fit the wheel base of the chassis being used.
7. Any stock appearing nose and tail pieces allowed.
8. Bodies must be complete and remain stock appearing. Any damaged panels must be replaced before the next race day. 22ga. sheet metal may be used for repairs, no aluminum.
9. After market steel body panels allowed.
10. Hood must have a min. of two but four hood pins recommended in the front to hold it down.
11. Holes around hood pins must not exceed 5/8". Straps connecting pins to the hood or body recommended. Hoods can not be bolted shut.
12. All cars must have front and rear bumpers. Bumpers must be strapped to fenders on all four corners to prevent hooking.
13. Minimum 3" x 36" yellow strip on back of trunk lid or on rear bumper for all rookie drivers.
14. Wheel wells may be radiused for tire clearance. Fender well edges must be rolled under, not out. No sharp edges.
15. All doors must be welded or bolted shut.
16. Rear spoilers allowed. Spoiler can not be more than 6" high. Must be bolted to the trunk lid and can not extend beyond the width of the fender. No sides, no Gurney lips. No roof wings. Spoiler can be bolted to the tail or trunk
17. The interior of the car must be stripped of all flammable material. All sharp objects must be removed or folded over
18. Rear view mirror and a left side mirror that doesn't exceed body line allowed.
19. Gas pedal may be modified or aftermarket. Pedals must remain in stock location. Toe hook recommened.
20. Driver's compartment must be sealed off with minimum 22 ga. sheet metal, no aluminum.
21. Stock front firewall and floor must be retained to behind driver. Passenger side of transmission hump may be removed and retinned with a min 22 gauge sheet metal. Behind driver may be removed and tinned over with a min. 22 ga. sheet metal. No Aluminum. Any discrepancies see tech man.
22. All glass must be removed. Lexan front windshield mandatory. Rear and all quarter windows optional, Lexan only.
23. Pick-up trucks must have lexan rear window or tin cover over truck box.

Wheel Base:

1. Cars must be a min. of 108" wheel base. Frames over 108" wheel base may only be shortened in the straight, middle section to achieve 108" wheel base.
2. Reinforcing the frame, such as boxing or adding an "X" brace is recommended.
3. Fords may run a min. 104" wheel base on the 1984 to 1988 T-Birds and Cougars only. Must retain the original suspension that came with that car.  No newer Mustangs permitted.
4. All unibody cars must have sub frames tied together with an "X" brace. Sub frame connectors mounted length wise not allowed
5. Wheel base must be within 1 inch variation right to left side.
6. Must have a chain or eye front and back of car for lift and towing.

Engines:

1. The engine must be the same manufacturer as the frame and body (GM frame, GM body, GM engine, etc.).
2. The engine must be in the stock forward location. Engine must be in the centerline of the car.
3. GM engines must use the stock upper engine mount. May weld lower mount to replace rubber bushing.
4. Ford and Chrysler engines can use aftermarket or fabricated upper mounts.  Subject to tech.
5. NO ALTERATIONS TO THE FRAME IS PERMITTED FOR FUEL PUMP OR EXHAUST MANIFOLD CLEARENCE.
6. Small block engines only maximum engine size GM- 350, Ford 351, Chrysler 360 plus max. .060" overbore permitted.  Must use stock block, crankshaft rods, etc.
7. All crate engines must comply with all of the engine rules!
8. Stock distributor and stock design ignition parts only.
9. 2bbl. carb only. Allowed. max. 500 cfm. Choke assembly can be removed but, choke horn stays.
   • GM engines must run Rochester carbs.
   • Ford engines must run Autolite carbs.
   • Chrysler engines must run Chrysler Holley carbs.
10. Stock style mechanical water pumps only. No electric water pumps permitted.
11. NO antifreeze allowed in coolant.
12. Any 2bbl. stock car or truck cast iron OEM intake manifold permitted. No four (4) bbl. Intake manifolds.
13. No Aftermarket intake manifolds permitted. No porting or polishing to heads or intake.
14. Max. 1" spacer between carb and intake manifold. Maximum of two (2) ¼" gaskets.  Total allowed height ½".
15. Two throttle return springs mandatory. Fuel filters must be steel, no plastic or glass allowed.
16. Air cleaner mandatory. Any size filter. Open topped air box exiting to cowl permitted. Ram tubes or ducting allowed.
17. Rear opening hood scoops allowed.
18. GM engines - Cast iron open chamber heads only (minimum 74 cc). Max. 1.94" intake valve and 1.50" exhaust. No angle plug, Bow-tie, Vortec, "Camel Bump" heads.  Must be a minimum of .039 compressed head gasket thickness.
19. Ford engines- Stock Cast iron heads only. No 4bbl. Cleveland or GT-40 heads.
20. Chrysler engines- Stock cast iron heads, No W-2 heads.
21. All heads must use stock diameter valve springs with no alterations to the spring pocket.
22. Screw in studs are allowed.  No guide plates
23. Stock style steel rockers only.
24. No roller rockers or roller tipped rockers permitted.
25. No roller lifters allowed
26. No stud girdles allowed.
27. Hydraulic camshaft only, with a maximum of .500 lift.
28. Dished or flat top four valve relief pistons only. Must be stock appearing, cast or Hypereutectic piston only. No forged pistons. No light weight thin walled wrist pins. Pistons must run one piece 5/64 inch thick top and second ring "rule does not apply to standard bore dished piston short blocks".
29. Piston clearance to be minimum .000 below deck.
30. Any wet sump oil pan allowed that does not sit lower than the cross member. No crank scrapers.
31. After market vibration damper and pulleys allowed.
32. Stock production cast iron exhaust manifolds only. No Corvette 2.5" center dump manifolds permitted.
33. All cars must have mufflers. H-pipes allowed, No X-pipes.  Maximum of 2" exhaust pipe.
34. All cars must have working starters, no push starting.
35. Radiator must mount in front of the engine. Aluminum radiators allowed.
36. Radiator must have a minimum 2 litre overflow catch can.
37. Electric fans permitted. Fan must have an ON/OFF switch and be fused.
38. No electric fuel pumps

Suspension:

1. Front and rear suspension must mount in the stock locations with no alterations. No Camaro/Firebird front clips allowed on any other car except total stock unibody, rear suspension and body Camaro or Firebird
2. No aluminum suspension or steering components permitted.
3. The upper control arm shaft called "The Problem Solver" is allowed.
4. Upper control arm mounts can not be moved to gain camber.
5. Rear trailing arms may be boxed, mounts may not be altered on frame or trailing arms.
6. No Panhard bars unless your chassis came stock with it.
7. Panhard bars may not be adjustable and must only mount with the stock bushings.
8. All cars must have a skid plate under the right front control arm. This plate must be lower than the brake rotor.
9. Steel control arm and trailing arm bushings permitted. Trailing arms may have bottoms boxed for reinforcement.
10. One shock per wheel, mounted in the stock location. Racing shocks permitted. No aluminum shocks permitted. No rebuildable shocks. No QA-1 shocks allowed.
11. Racing springs may be used.
12. Spring spacers allowed but no metal wedges in springs. Rear weight jacks allowed.
13. Lowering blocks allowed on leaf springs. Rear leaf spring sliders permitted. Leaf springs must mount the original way they came from the factory.
14. A minimum 6" ride height on the left side frame rail or doorsills on unibody cars. Measurement taken with the driver in the car.
15. Stock tie rods only. No mono ball joints. No hiem ends. All steering components must be OEM type. No Howe replacement steering components. No alterations to the steering mounting points.
16. A bigger or heavy duty type steering box may be used if it bolts to the stock location.
17. After market fabricated steering column recommended.
18. Bigger front spindles allowed but MUST BE OEM. No aftermarket spindles allowed. No OEM drop spindles permitted.
19. Sway bars must be OEM and must mount in the stock location. Front sway bar can only be adjustable at the control arm mounting point.
20. Car must weigh NO LESS THAN 3300 LBS. at any time, with driver.
21. Lead ballast must be bolted to the frame or cage with two ½" bolts and lock nuts (Double nuts is acceptable alternative). All ballast must be painted white with your number painted in black. All ballast must be visible to tech. inspector.
22. Weight allowance 55% Left side max., 47% Rear max., with driver all day.

Tires/Wheels:

1. Must use a heavy duty racing type wheel. No stock rims permitted.
2. Wheels can not exceed 8" in width.
3. No aluminum rims.
4. Aftermarket wheel studs and nuts recommended.
5. The tire and rim shall not extend more than 4" outside the body.
6. Max. 2" wheel offset.
7. Used Goodyear Short track specials, with a maximum of 5/32 tread depth.  All tires will be checked and stamped by tire tech official if they pass inspection.  No tire softeners.
8. No wheel spacers allowed.

Drive Line:

1. Must have driveshaft hoop.
2. Drive shaft must be painted white with car number on it.
3. No aluminum drive shafts permitted.

Roll Cage:

1. All cages will be teched.  Cages must be securely welded to the frame and/or floor of the car.  Minimum roll bar thickness is 1.5" diameter, 1.25" wall thickness or 1.75" diameter, .095" wall thickness.
2. There must be four door bars on the driver's side and three on the passenger side. Driver's door bars must be tinned to protect the driver, minimum of 20 gauge.
3. The roof bar can not be more than 6" from the out side of the roof on the passenger side.
4. Rear upright must be cross braced.
5. Front window bars can not be more than 6" back from the roof post.
6. Front uprights must be connected by a dashboard bar.
7. All cars are recommended to have an "Earnhardt Bar" in the center of the windshield area of the front roll cage. Must be made of either one ½" tube or two 1" bars 6"-12" apart.
8. Must have minimum two (2) windshield bars, minimum 0.5" O.D.
9. All cages will have an ankle bar on the left side.
10. All roll cage bars within reach of the driver must be padded.
11. All cars will have a safety approved aluminum racing seat mounted securely to the roll cage. Must be bolted down with a min. of four (4), 3/8" bolts with big washers and lock nuts. All seats will have headrests. No fiberglass or plastic seats permitted.
12. Rub rails allowed, must be within one inch of the body panel, ends cut capped, 1" x 2", 3/16" wall, bumper height.
    

Fuel Cell:

1. The use of a commercially manufactured fuel cell is mandatory. Must be contained in a container of not less than 22 ga. steel.
2. Pump Gas only no racing fuels . With no additives.
3. It is recommended all fuel cells be 22 gallon capacity.
4. Overflow check valve is required.
5. No material other than the standard foam supplied by a fuel cell manufacturer is permitted.
6. Fuel cell must be mounted between the frame rails and as far forward as practical. Must be securely mounted with a min. of two 1½" wide straps bolting it down. Any fuel cell over eight gallons must mount inside a cage constructed of min. 1" square tube (NASCAR type). Must have a min. of two 1½" wide straps bolting it in.
7. Fuel cell must have a min. 8" ground clearance.
8. All cars must have a nerf bar welded to the rear frame behind the fuel cell. The nerf bar must be at least the width of the fuel cell and extend up to the frame or a cross member on the sides. The nerf bar must hang at least two inches below the level of the bottom of the fuel cell. This bar must be constructed of a min. of 1¼" round or square tubing.

Transmission:

1. Any OEM manual or automatic transmission.
2. Must have working reverse gear.
3. Automatic transmission must have a steel, working torque converter weighing 39 lbs.
4. Torque converter must mount to an OEM, steel flex plate with no alterations.
5. All transmission coolers must be mounted either ahead of the front firewall in the engine compartment or behind the rear firewall. No coolers permitted inside the driver's compartment.
6. All transmission lines must have either screw on fittings or double clamped over flared ends. Any transmission cooler lines running through interior of car must be metel or steel braided hydraulic hose.
7. All cars with manual trans. must have a ¼" steel scatter shield top 180 degrees, or thick belting.
8. All bell housings must have an inspection hole, a minimum of 1¾" in size on the lower passenger side of the bell housing, or be open at the bottom for clutch and flywheel inspection.
9. Stock OEM type, single disc clutch and pressure plates with a min. 10" diameter.  Must weigh minimum of 39 lbs.
10. No aluminum flywheels permitted. Stock OEM, steel flywheels only.
11. No aftermarket flywheels permitted.

Rearends:

1. Stock working rear end allowed including posi track, welded rear ends and mini spools.
2. Rear end must be centered in the car and installation will be to the satisfaction of the tech. inspector.
3. Locked rear ends permitted.
4. No Detroit Lockers permitted.
5. No traction control devices of any kind permitted.

Brakes:

1. All cars must have stock OEM brakes in good working condition on all four wheels.
2. Lightening of backing plates, brake drums, discs, shoes or calipers by cutting, trimming or grinding metal is not permitted.
3. No rear disc brakes permitted
4. Must use stock OEM type brake components only.
5. Hi-performance, racing stock type brake pads permitted.
6. You may use stock type OEM bigger spindles with bigger brakes. "P/N AFCO 9850-6501 rotor also allowed"
7. No aftermarket spindles permitted. No drop spindles permitted.
8. Ducting to the front brakes is ok.
9. No brake bias adjusters permitted.
10. Stock OEM type master cylinders and brake pedals only. In stock location. No aftermarket brake pedal assemblies permitted.

Appearance:

1. Cars must be neatly painted with all exterior body panels. A damaged car, if it is safe to continue, will only be allowed to finish that race date. The car must be repaired before coming back to the track another race date.

Safety:

1. Refer to Safety rules for clothing, helmets, and other equipment.
2. Batteries must be securely mounted to the frame or cage, not the floor. If mounted in the driver's compartment it must be sealed inside a battery box.
3. All cars must run a quick disconnect switch within reach of the driver. Switch must be clearly marked ON/OFF.
4. Holes in the floor or firewall must be sealed with minimum 20 gauge steel

 

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